Title of Invention: Charging management device, wireless charging system, server and method of providing wireless charging service
technical field
[One]
Cross Citation with Related Applications
[2]
The present invention claims the benefit of priority based on Korean Patent Application No. 10-2019-0092312 filed on July 30, 2019, and includes all contents disclosed in the literature of the Korean patent application as a part of this specification.
[3]
technical field
[4]
The present disclosure relates to a charging management device, a wireless charging system, a server, and a method for providing a wireless charging service for scheduling charging during a signal waiting stop of a driving vehicle.
background
[5]
Recently, research and development on secondary batteries has been actively carried out. Here, the secondary battery is a battery capable of charging and discharging, and includes all of the conventional Ni/Cd batteries, Ni/MH batteries, and the latest lithium ion batteries. Among secondary batteries, lithium ion batteries have an advantage in that their energy density is much higher than that of conventional Ni/Cd batteries and Ni/MH batteries. In addition, lithium ion batteries can be manufactured in a small size and light weight, so they are used as power sources for mobile devices. . The lithium ion battery has been attracting attention as a next-generation energy storage medium due to its extended range of use as a power source for electric vehicles.
[6]
The secondary battery is used as a battery pack including a battery module in which a plurality of battery cells are connected in series and/or in parallel, and a battery management system (BMS, BATTERY MANAGEMENT SYSTEM) that controls the operation of the battery module and manages the state of the battery module do.
[7]
In general, in the case of an electric vehicle, since a lot of energy is required to improve the mileage, battery cells are connected in parallel to increase the capacity. Accordingly, the reduction of the charging time of the battery of the electric vehicle is emerging as an important problem. However, conventionally, charging of an electric vehicle is possible only in a state in which the vehicle is parked in a specific place such as an electric charging station, and there is a problem in that the vehicle must be moved to a place where the charger is installed even when charging is urgently required.
DETAILED DESCRIPTION OF THE INVENTION
technical challenge
[8]
The present disclosure has been made to solve the above-described problem, and to provide a system and service that enables efficient vehicle charging management by enabling charging when the vehicle is waiting for a signal while driving and scheduling the charging time to the destination. do.
means of solving the problem
[9]
According to one aspect of the embodiments of the present disclosure, there is provided a charge management apparatus for managing charging of a vehicle battery, comprising: at least one processor; at least one memory storing computer program instructions that, when executed by the at least one processor, cause to perform operations; a communication device configured to be able to communicate with the server; and a power receiving device configured to wirelessly receive power, wherein the operations include: searching for a vehicle travel route based on at least a destination of the vehicle, identifying wireless charging stations capable of charging while stationary based on the travel route, and , when stopped at an intersection where the identified wireless charging stations are installed, and receiving power from the wireless charging station when the vehicle is stopped at a charging position.
[10]
In embodiments of the present disclosure, in response to transmitting the driving route to the server, a list of wireless charging stations capable of charging may be received from the server.
[11]
In embodiments of the present disclosure, the operation may further include determining a required amount of charge required to be charged, and transmitting the determined required amount of charge to the server.
[12]
In embodiments of the present disclosure, the operation may further include, when receiving power from the wireless charging station, updating the required charging amount based on the received power, and transmitting the updated required charging amount to the server. .
[13]
In embodiments of the present disclosure, the operation may further include calculating an expected arrival time to a chargeable wireless charging station and transmitting the calculated estimated arrival time to the server.
[14]
In embodiments of the present disclosure, the operation may further include transmitting its location to the server.
[15]
According to another aspect of the embodiments of the present disclosure, a wireless charging station installed under the ground of a road and configured to transmit power wirelessly within a predetermined area; and a charging control device configured to control charging of the wireless charging station, wherein the charging control device includes: a communication unit configured to communicate with a server; and a control unit configured to control the operating state of the wireless charging station based on the vehicle information received from the server and signal information of traffic lights.
[16]
In embodiments of the present disclosure, the vehicle information may include identification information for identifying the vehicle and location information indicating the location of the vehicle.
[17]
In embodiments of the present disclosure, the wireless charging station may include: a vehicle position determination device for determining whether a vehicle is stopped within a predetermined area; a wireless power transmitter for wirelessly transmitting power to the vehicle; and a power amount calculator for calculating the amount of power transmitted by the wireless power transmitter.
[18]
In embodiments of the present disclosure, the charging control device may be configured to receive the amount of power charged in the vehicle from the wireless charging station, and transmit the received amount of power to the server by matching the vehicle information.
[19]
In embodiments of the present disclosure, the device for determining a vehicle location may determine whether the vehicle is stopped at a location having a power transmission rate greater than or equal to a reference value when power is wirelessly transmitted to the vehicle.
[20]
In the embodiments of the present disclosure, when the signal information indicates that the signal information indicates that the traffic light indicates that the vehicle is stopped with respect to the driving direction, the charging control device may control to switch the operating state of the wireless charging station from the sleep state to the standby state. can
[21]
In embodiments of the present disclosure, the charging control device may control the wireless charging station to stop transmitting power before the signal for the vehicle driving direction of the traffic light is changed from the mental signal to the driving signal.
[22]
According to another aspect of embodiments of the present disclosure, there is provided a server for managing wireless charging of a vehicle on a road, comprising: at least one processor; at least one memory storing computer program instructions that, when executed by the at least one processor, cause to perform operations; and a communication device configured to be able to communicate with the vehicle and the charging control device, wherein the operations include receiving a driving route and location information of the vehicle from the vehicle, and allowing the vehicle to pass on the driving route based on the driving route and location information. to identify at least one wireless charging station, and provide a server comprising providing information on the identified at least one wireless charging station to the vehicle.
[23]
In embodiments of the present disclosure, the operation may further include transmitting information about the vehicle to a corresponding charging control device that controls the identified at least one wireless charging station.
[24]
In embodiments of the present disclosure, the operation may further include receiving, from the charging control device, the amount of electric power charged by the vehicle in correspondence with information of the vehicle, and generating charging information for the vehicle based on the received amount of electric power. can
[25]
In embodiments of the present disclosure, the operation of generating the charging information may be generated based on the total amount of all electric power received by the vehicle on the driving route.
[26]
According to another aspect of the embodiments of the present disclosure, there is provided a method of providing a wireless charging service for wirelessly charging a vehicle while the vehicle is stopped using a plurality of wireless charging stations provided under the ground of a road, wherein, in a server, identifying at least one wireless charging station capable of being charged from among the plurality of wireless charging stations; transmitting power from the wireless charging station to the vehicle when the vehicle is stopped at a charging position when the vehicle is stopped at an intersection in which at least one wireless charging station is installed; and generating billing information based on the amount of power transmitted to the vehicle; provides a wireless charging service providing method comprising a.
[27]
In embodiments of the present disclosure, the method comprising: receiving payment method information from a vehicle; and transmitting payment information to the payment server based on the payment method information and the billing information.
[28]
In embodiments of the present disclosure, the charging information may be generated based on vehicle information recognized by identifying the license plate of the vehicle.
Effects of the Invention
[29]
Due to the above configuration, according to the systems and services according to the embodiments of the present disclosure, it is possible to charge the vehicle while the vehicle is waiting for a signal while driving and schedule the charging time to the destination, thereby enabling efficient vehicle charging management.
Brief description of the drawing
[30]
1 is a view schematically showing a situation to which the present invention is applied.
[31]
2 is a diagram illustrating a configuration of a system according to embodiments of the present disclosure.
[32]
3 is a diagram illustrating a situation in which a system according to embodiments of the present disclosure operates.
[33]
4 is a block diagram illustrating a functional configuration of a charge management apparatus according to embodiments of the present disclosure.
[34]
5 is a block diagram illustrating a hardware configuration of a charge management apparatus according to embodiments of the present disclosure.
[35]
6 is a flowchart illustrating an operation of a charge management apparatus according to embodiments of the present disclosure.
[36]
7 is a block diagram illustrating a functional configuration of a server according to embodiments of the present disclosure.
[37]
8 is a block diagram illustrating a hardware configuration of a server according to embodiments of the present disclosure.
[38]
9 is a flowchart illustrating an operation of a server according to embodiments of the present disclosure.
[39]
10 is a block diagram illustrating a functional configuration of a wireless charging system according to embodiments of the present disclosure.
[40]
11 is a flowchart illustrating an operation of a wireless charging system according to embodiments of the present disclosure.
[41]
12 is a flowchart illustrating a method of calculating a vehicle's available charging time by a wireless charging system according to embodiments of the present disclosure.
[42]
13 is a block diagram illustrating another example of a functional configuration of a charging control device according to embodiments of the present disclosure.
Modes for carrying out the invention
[43]
Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this document, the same reference numerals are used for the same components in the drawings, and duplicate descriptions of the same components are omitted.
[44]
For various embodiments of the present invention disclosed in this document, specific structural or functional descriptions are only exemplified for the purpose of describing the embodiments of the present invention, and various embodiments of the present invention may be implemented in various forms. and should not be construed as being limited to the embodiments described in this document.
[45]
Expressions such as "first", "second", "first", or "second" used in various embodiments may modify various components regardless of order and/or importance, and do not limit For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, the second component may also be renamed as a first component.
[46]
Terms used in this document are only used to describe specific embodiments, and may not be intended to limit the scope of other embodiments. The singular expression may include the plural expression unless the context clearly dictates otherwise.
[47]
1 is a view schematically showing a situation to which the present invention is applied.
[48]
When a signal of a traffic light related to a driving direction at an intersection or the like is a stop signal, the vehicle stops to wait for a signal. The length of the stop signal light of the traffic light is determined by the signal controller controlling each traffic light. Therefore, it is possible to calculate the approximate time for the vehicle to stop at the intersection by the stop signal. Embodiments of the present invention have been made based on the above ideas.
[49]
In the system and service according to embodiments of the present disclosure, a wireless charging station capable of wirelessly charging a battery of a vehicle may be installed in an area where the vehicle stops to wait for a signal at an intersection. If the completely stopped vehicle is stopped within the charging area, wireless charging may be performed according to a user's (driver's) request or according to the vehicle's settings. The signal of the traffic light at each intersection has a predetermined cycle in which the stop signal and the driving signal are repeated. Accordingly, when a route for a vehicle to a destination is derived, using the signal period at each intersection on the derived route, it is possible to calculate at which point the vehicle will stop for waiting for a signal, how long it will stop, and the like. As a result, it is possible to calculate a viable total charging time while the vehicle travels to its destination. Here, the stop signal may be a concept including signals other than a driving signal in a direction in which the vehicle travels. For example, when the vehicle intends to go straight at the intersection, a signal that the vehicle cannot travel in the driving direction, such as a left turn signal, may be included.
[50]
Referring to FIG. 1 , a driving path for the vehicle 100 to move to a destination is indicated by a thick arrow. The driving route may be a result of searching based on a destination input by the user, such as a navigation provided in the vehicle 100, a navigation application installed on a user device (smartphone, tablet, etc.) possessed by the user of the vehicle 100. have. Alternatively, the driving route may be a result of searching by the server based on information related to the current location and destination provided from the vehicle 100 to a server such as a charging management server.
[51]
A plurality of intersections are present on the driving route through which the vehicle 100 will pass. At each intersection, a charging area capable of wireless charging is provided in a predetermined area. There may be cases where there is no vehicle waiting for a signal in the charging area. Depending on traffic conditions, there are many moving vehicles, and other vehicles may be stopped in some or all of the charging area. Accordingly, charging may be performed when the vehicle 100 stops in the chargeable area and power can be transmitted from the wireless charging station installed in the chargeable area to the vehicle 100 at a power transfer rate greater than or equal to the reference value.
[52]
The vehicle 100 may be an electric vehicle. Accordingly, the vehicle 100 may use a motor to generate power, and may include a battery for driving the motor. It is a rechargeable battery capable of charging and discharging the battery, and a sufficient amount of power must be charged to move the vehicle 100 to the destination. Depending on the state of charge (SOC) of the battery provided in the vehicle 100 , the vehicle 100 may need to charge the battery while driving. If the battery is not in a fully charged state, the vehicle 100 may want to always charge the battery just in case. Alternatively, in terms of charging costs, vehicle 100 may wish to charge only the minimum amount necessary to the destination. For example, if the destination is a place where charging is possible at a lower price than a wireless charging station, such as at a user's home or a charging station with a low price, he or she may want to charge only a minimum amount.
[53]
When the vehicle 100 is waiting for a signal by a stop signal or the like at an intersection, it is determined whether the vehicle 100 is in a charging state. The chargeable state may be, for example, a state in which the power transfer rate is equal to or greater than a reference value. That is, the chargeable state may be a state in which wireless charging efficiency is equal to or greater than a reference value. The wireless charging efficiency may be determined by various factors such as the relative position between the vehicle 100 stopped position and the charging area, the state of the battery installed in the vehicle 100 , weather, and the surrounding environment.
[54]
If the vehicle 100 is in a state in which charging is possible, charging is performed when a predetermined condition is satisfied. The predetermined condition may be a case in which a charging execution request is transmitted from the vehicle 100 to a wireless charging station, a charging control device including the same, or a server managing charging. The charging execution request may be transmitted by the user to a related device (the above-described server, etc.) through the vehicle 100 or the user device immediately before or during driving. Alternatively, the charging execution request may be automatically transmitted whenever the user starts driving by subscribing to a wireless charging service in advance. Alternatively, the charging execution request may be transmitted by the user to a wireless charging station installed at the intersection or a charging control device including the same when the vehicle 100 stops at the intersection. The transmission method of such a charging execution request is exemplary and not limited thereto.
[55]
Also, before starting charging in response to the charging request signal, a request for confirming charging execution may be sent to the user. Charging may be started only when the user instructs charging execution by accepting the charging execution confirmation request. However, this is an example, and when a charging execution request is sent by the user and the vehicle 100 stops at a location having a wireless charging efficiency greater than or equal to the reference value in the charging area is established, charging may be performed automatically. .
[56]
In this way, the vehicle 100 may be placed in a signal standby state while driving to the destination, and if the signal waiting area corresponds to the chargeable area, the battery may be charged at intervals during the signal standby stop.
[57]
Hereinafter, a method in which the vehicle 100 performs wireless charging in a chargeable area will be described in detail. In other words, a method of providing a wireless charging service to the vehicle 100 will be described.
[58]
2 is a diagram illustrating a configuration of a system according to embodiments of the present disclosure.
[59]
A system according to embodiments of the present disclosure may include a vehicle 100 , a server 200 , and a wireless charging system 300 .
[60]
As described above with reference to FIG. 1 , the vehicle 100 may be an electric vehicle that moves by driving a motor with a battery. A battery is a rechargeable secondary battery. The vehicle 100 may include a wireless charging circuit to wirelessly charge the mounted battery.
[61]
The vehicle 100 may include a charge management device that manages charging of the battery. The charging management device searches for a vehicle driving route based on at least the destination of the vehicle, and identifies wireless charging stations 320 capable of charging while stopped based on the driving route. The charging management device may receive power from the wireless charging station 320 when the vehicle is stopped at a chargeable position when the vehicle is stopped at an intersection where the confirmed wireless charging stations 320 are installed.
[62]
The vehicle 100 may communicate with the server 200 and the wireless charging system 300 through the network 500 . The vehicle 100 may be connected to the network 500 using an in-vehicle connectivity system. Alternatively, the vehicle 100 may be connected to the network 500 through a communication means provided separately from the in-vehicle connectivity system. In addition, the vehicle 100 may be connected to the network 500 by other methods other than the method using the vehicle's own communication means. For example, the vehicle 100 may be connected to the network 500 through a user's mobile device. Alternatively, various operations described below may be performed by connecting the user's mobile device to the network 500 instead of the vehicle 100 being connected to the network 500 .
[63]
The charging management device of the vehicle 100 may receive a list of the wireless charging stations 320 that can be charged from the server 200 in response to transmitting the driving route to the server 200 . Additionally, the charging management device of the vehicle 100 may determine a required charging amount required to be charged, and transmit the determined required charging amount to the server 200 . In this case, when the vehicle 100 receives power from the wireless charging station 320 , the method may further include updating the required charging amount based on the received power and transmitting the updated required charging amount to the server 200 . have.
[64]
The charging management apparatus of the vehicle 100 may further include calculating an expected arrival time to the chargingable wireless charging station 320 and transmitting the calculated expected arrival time to the server 200 . The charging management apparatus of the vehicle 100 may further include an operation of transmitting its location to the server 200 in real time.
[65]
The server 200 may be a charging management server for implementing a wireless charging service according to embodiments of the present disclosure. That is, the server 200 may be a server for managing wireless charging of a vehicle on a road.
[66]
The server 200 may receive various information and signals from the vehicle 100 . The server 200 may receive information on a driving route or information on a current location and destination from the vehicle 100 . The server 200 may receive a charging execution request from the vehicle 100 . The charging execution request may be transmitted from the vehicle 100 directly to the driving of the vehicle 100 . Alternatively, the charging execution request may be a signal generated based on the user of the vehicle 100 subscribing to the wireless charging service in advance.
[67]
The server 200 may identify at least one wireless charging station 320 through which the vehicle 100 passes on the driving path of the vehicle 100 based on the driving path and information on the current location. At this time, the server 200 based on the driving route information received from the vehicle 100 or based on the driving route information calculated based on the current location and destination information received from the vehicle 100, the Charging stations 320 can be identified.
[68]
The server 200 may transmit information on the identified at least one wireless charging station 320 to the vehicle 100 and/or the corresponding charging control device 310 for controlling the wireless charging station 320 . The server 200 may directly transmit information about the vehicle to the wireless charging station 320 instead of the charging control device 310 . For example, the server 200 may transmit a list of at least one wireless charging station 320 to the vehicle 100 and/or the charging control device 310 .
[69]
The server 200 may receive from the charging control device 310 the amount of power charged by the battery of the vehicle 100 in correspondence with information of the vehicle 100 . The server 200 may generate charging information for the vehicle based on the received amount of power. In this case, the charging information may be generated based on the total amount of all electric power received by the vehicle 100 on the driving route. The server 200 may transmit billing information to a payment server such as a card company to charge a fee corresponding to the amount of power used to charge the battery of the vehicle 100 . The server 200 may transmit payment method information (eg, credit card information) received from the user to the payment server in addition to billing information for billing.
[70]
The server 200 may communicate with the charging management apparatus (or user device) of the vehicle 100 and the wireless charging system 300 through the network 500 .
[71]
The wireless charging system 300 is a system configured to enable wireless charging by wirelessly transmitting power to the battery of the vehicle 100 . The wireless charging system 300 may include a charging control device 310 and a wireless charging station 320 .
[72]
The wireless charging station 320 is a device that is installed under the ground of a road and configured to wirelessly transmit power within a predetermined area. The wireless charging station 320 may determine whether the vehicle 100 is stopped within a predetermined area. For example, when wirelessly transmitting power to the battery of the vehicle 100 , the wireless charging station 320 may determine whether the vehicle 100 is stopped at a location having a power transmission rate greater than or equal to a reference value. That is, it may be determined whether the wireless charging efficiency of the battery of the vehicle 100 by the wireless charging station 320 is equal to or greater than a reference value. When it is determined that the vehicle 100 is stopped within a predetermined area, the wireless charging station 320 may wirelessly transmit power to the battery of the vehicle 100 .
[73]
The wireless charging station 320 may perform power transmission under the control of the charging control device 310 . In addition, the wireless charging station 320 may calculate the amount of power transmitted to the vehicle 100 , and transmit the calculated amount of power to the charging control device 310 .
[74]
The charging control device 310 is a device configured to control the charging operation of the wireless charging station 320 . The charging control device 310 may be configured to control the operating state of the wireless charging station 320 based on vehicle information received from the server 200 and signal information of a traffic light. The vehicle information may include identification information for identifying the vehicle 100 and location information indicating the location of the vehicle 100 .
[75]
The charging control device 310 is configured to be able to communicate with the server 200 to receive the amount of power charged in the battery of the vehicle 100 from the wireless charging station 320 , and transmit the received amount of power to the server 200 . . When transmitting the amount of power to the server 200 , the charging control device 310 may transmit vehicle information correspondingly.
[76]
When the signal information indicates that the signal information indicates that the traffic light indicates that the vehicle 100 is stopped with respect to the driving direction, the charging control device 310 may control the operation state of the wireless charging station 320 to be switched from the sleep state to the standby state. have. In addition, the charging control device 310 may control the wireless charging station 320 to stop transmitting power before the signal for the vehicle driving direction of the traffic light is changed from the mental signal to the driving signal.
[77]
The wireless charging system 300 may communicate with the charging management apparatus (or user device) of the vehicle 100 and the server 200 through the network 500 .
[78]
The signal controller 400 controls signals of traffic lights installed on roads such as intersections. The signal controller 400 may transmit signal information of a traffic light to the wireless charging system 300 . The signal information may include a variety of information for identifying a signal state of a traffic light, such as a current signal of a traffic light, a next signal, and the length of each signal.
[79]
In the present embodiment, the signal controller 400 is illustrated as being directly connected to the wireless charging system 300 without going through the network 500, but is not limited thereto. That is, the signal controller 400 may be connected to the wireless charging system 300 through the network 500 . Also, although not shown, the signal controller 400 may be connected to a traffic control center or the like through the network 500 to control or monitor the operation.
[80]
The network 500 connects each component in the system to be able to communicate wirelessly and/or wiredly. As the network 500 , various methods in which each component may be communicatively connected may be used, and the method is not limited thereto.
[81]
3 is a diagram illustrating a situation in which a system according to embodiments of the present disclosure operates. 3 shows in detail the situation of a specific intersection in the situation shown in FIG. 1 .
[82]
As described above, the present system may include the vehicle 100 , the server 200 , and the wireless charging system 300 .
[83]
A wireless charging station 320 having a charging area 321 and a charging control device 310 for controlling the wireless charging station 320 may be provided at the intersection. The chargeable region 321 may have a plurality of chargeable sub-regions 321a to 321d. In FIG. 3 , the chargeable region 321 is illustrated as having four chargeable sub-regions 321a to 321d, but this is exemplary and is not limited thereto. The chargeable area 321 may have less than 4 chargeable sub-areas depending on road conditions, or may have 5 or more chargeable sub-areas.
[84]
When the vehicle 100 is stopped such that the vehicle 100 is completely included in any one of the plurality of chargeable sub-regions 321a to 321d, the wireless charging efficiency will be greater than or equal to the reference value. Accordingly, the battery of the vehicle 100 will be charged through the wireless power transmission means provided in the wireless charging station 320 . On the other hand, when the vehicle 100 is stopped over a part of any one of the plurality of chargeable sub-regions 321a to 321d, the wireless charging means provided in the vehicle 100 and the wireless power transmitting means of the chargeable sub-area are relative to each other. The wireless charging efficiency is determined according to information such as location. And when the determined wireless charging efficiency is equal to or greater than the reference value, the battery of the vehicle 100 is charged.
[85]
The server 200 may receive information such as driving speed and current location information from the vehicle 100 in real time. In addition, the server 200 may further receive SOC (State of Charge) information and destination information of the battery in addition to the information listed above. The above-described information received by the server 200 may be transmitted to the charging control device 310 . Alternatively, the above-described information may be directly transmitted from the vehicle 100 to the charging control device 310 .
[86]
The server 200 searches for a route to the destination of the vehicle 100 by using the current location information and the destination information received from the vehicle 100 . However, this is exemplary and, as described above, the driving route may be searched for in the navigation of the vehicle 100 or the navigation application of the user device. The charging control device 310 may receive the driving route determined according to the search result directly from the vehicle 100 or through the server 200 .
[87]
The server 200 identifies a wireless charging station 320 that can be charged among the route to the destination of the vehicle 100 . The server 200 transmits information about the vehicle 100, such as the current location information, the driving route, and the driving speed, to the corresponding charging control device 310 that controls the identified wireless charging station 320 .
[88]
The charging control device 310 of the wireless charging system 300 that has received information about the vehicle 100 from the server 200 receives signal information from the signal controller 400 . The signal information may include a variety of information for identifying a signal state of a traffic light, such as a current signal of a traffic light, a next signal, a length of each signal, and a signal period. The signal information may be provided by the signal controller 400 in response to a request from the charging control device 310 . Alternatively, the signal information may be transmitted and stored periodically or in advance from the signal controller 400 to the charge control device 310 irrespective of the request of the charge control device 310 . In this case, it may be configured to receive the updated content only when the signal period and the like are changed (eg, when the yellow flashing signal is changed in the middle of the night, etc.).
[89]
The charging control device 310 uses the distance from the current location of the vehicle 100 to the chargeable area 321 of the wireless charging station 320 and the driving speed of the vehicle 100 to allow the vehicle to be charged in the chargeable area 321 . Calculate the time it takes to reach The formula for calculating the time it takes for the vehicle 100 to reach the chargeable area 321 is the following Equation (1):
[90]
, D il : Distance from the current location to the charging area … (One)
[91]
[92]
Then, the charge control device 310 uses the stop-driving signal cycle in the chargeable area 321 and the time it takes to reach the chargeable area 321 to allow the vehicle 100 to enter the corresponding chargeable area 321 . Calculate the stop time when arriving. The formula for calculating the stop time when the vehicle 100 arrives at the corresponding chargeable area 321 is the following Equation (2):
[93]
… (2)
[94]
T (Red,Green) : Stop, drive signal cycle
[95]
T current_stop_signal : Time remaining until the next driving signal
[96]
(mod is a modulo function whose result is the remainder of division)
[97]
[98]
That is, the time remaining by subtracting the arrival time of the vehicle from the time remaining from the current intersection to the driving signal is calculated as the remaining stop time. In this case , T remain_stop_signal ≤ T (Red) (T (Red) is the length of the stop signal).
[99]
And in applying Equation (2), the value of T current_stop_signal may be appropriately adjusted. For example, the signal period of a traffic light at an intersection is 2 minutes (ie, T (Red,Green) is 2 minutes), the driving signal straight ahead is 45 seconds, and the stop signal is a left turn signal and a stop signal each 15 seconds. and 1 minute (the total length of the stop signal is 1 minute and 15 seconds). At this time, if the result value of [T arrival(i) mod T (Red, Green) ] is 10 seconds, and T current_stop_signal is 50 seconds (25 seconds after the traffic light enters the stop signal), T remain_stop_signal becomes 40 seconds. On the other hand, if the result value of [T arrival(i) mod T (Red,Green) ] is 40 seconds and T current_stop_signal is 30 seconds (45 seconds after the traffic light enters the stop signal), T remain_stop_signalis -10 seconds. That is, when the vehicle arrives at the crossroads, charging is impossible because the vehicle changes from a stop signal to a driving signal. As another example, a case where the signal of the current traffic light is a driving signal may be considered. In this case, the calculation is performed using the length of the current remaining driving signal as the T current_stop_signal value. If the result is a positive value, the charging is impossible because the driving signal remains when the vehicle arrives at the intersection. If the result value is a negative value, since it is a stop signal when the vehicle arrives at the intersection, the value obtained by adding the result value to the total length of the stop signal can be T remain_stop_signal (that is, the remaining value in the calculation of Equation (2)) Same as T current_stop_signal value obtained by adding the total length of the stop signal to the length of the driving signal ). In this way, when performing the operation of Equation (2), the T current_stop_signal value may be appropriately adjusted according to the signal type of the current traffic light, the remaining time of the corresponding signal, and the result value of [T arrival(i) mod T (Red, Green) ]. will be able
[100]
Subsequently, the charging control device 310 determines the stop time when the vehicle 100 arrives in the chargeable area 321 and the time that vehicles currently in the corresponding chargeable area 321 depart from the chargeable area 321 . An expected charging time in the charging area 321 of the corresponding vehicle 100 is calculated using the . The equation for calculating the expected charging time in the charging area 321 of the vehicle 100 is as follows:
[101]
… (3)
[102]
[103]
Equation (3) described above should be appropriately adjusted and changed according to the road conditions to be utilized. When a plurality of vehicles are stopped at the intersection, the user's vehicle 100 stops outside the chargeable area 321 and passes through the chargeable area 321 together with other vehicles stopped at the driving signal. Because. On the other hand, there will be cases in which another vehicle that has been stopped passes at the time of the driving signal and the user's vehicle 100 does not pass the intersection at the time of the signal and stops again in the chargeable area 321. In this case, the above-mentioned formula (3) may be utilized.
[104]
Therefore, Equation (3) should be used by comprehensively considering the current situation of the road, the average number of stopped vehicles passing through the intersection at the time of a driving signal, and the pedestrian situation.
[105]
Next, the server 200 receives the estimated charging time calculated from each charging control device 310 . In addition, the server 200 calculates the total chargeable time by summing all the expected charging times received from all the charging control devices 310 on the driving route to the destination of the corresponding vehicle 100 . The formula for calculating the total charging time is the following formula (4):
[106]
… (4)
[107]
[108]
The server 200 may derive the amount of charge that can be charged while the corresponding vehicle 100 goes to the destination based on the calculated total charging time and transmit it to the vehicle 100 . Also, the server 200 may transmit the total chargeable time to the vehicle 100 . Alternatively, the server 200 separates the amount of charge that can be charged and the expected charging time for each wireless charging station 320 provided by identifying the vehicle 100 as being able to be charged while driving, in addition to the amount of charge that can be charged and the total charging time. You might be able to send
[109]
Information such as the expected charging time, the amount of charging available, the total charging time, etc. may be updated in real time by reflecting the current location information that is changed as the vehicle 100 is driven. In addition, when the vehicle 100 performs charging in the chargeable area 321 of a specific wireless charging station 320 or passes through the corresponding chargeable area 321, this is reflected in the expected charging time, the amount of charge that can be charged, and the total charge Information such as available times may be updated.
[110]
In the embodiment according to the present disclosure, the server 200 serves as a medium for exchanging information between the vehicle 100 and the charging control device 310 , and the charging control device 310 determines the expected charging time and the amount of charge that can be charged. Although it has been described as calculating, etc., it is not limited thereto. For example, the server 200 may receive the corresponding signal information from the charging control devices 310 to directly calculate the expected charging time and the amount of charge that can be charged. Alternatively, the vehicle 100 may directly exchange information with the charging control device 310 to perform all of the above-described functions and to omit the server 200 may be implemented.
[111]
Hereinafter, a detailed configuration and function of each component of the system according to the present disclosure will be described.
[112]
4 is a block diagram illustrating a functional configuration of a charge management apparatus according to embodiments of the present disclosure.
[113]
Referring to FIG. 4 , the vehicle 100 may include a vehicle controller 110 , a battery pack 120 , a wireless charging unit 130 , and a communication unit 140 .
[114]
The vehicle controller 110 controls operations of various devices provided inside the vehicle 100 . The vehicle controller 110 may operate as a higher level controller of a battery management system (BMS) 122 included in the battery pack 120 . The vehicle controller 110 may be communicatively connected to the BMS 122 , and may control charging and discharging of the battery module 121 by controlling the BMS 122 , and may monitor the state of the battery module 121 .
[115]
The battery pack 120 consists of one or more battery cells, and monitors the battery module 121 capable of charging and discharging, and the voltage, current, temperature, etc. of the battery cells and/or the battery module 121, so as to overcharge and overdischarge, etc. Includes a BMS (122) to control to prevent. Also, although not shown, in the battery pack 120 , there is a switching circuit for controlling the charge/discharge current flow of the battery module 121 , and for protecting the battery pack 120 when an abnormality occurs in the battery pack 120 . It may further include a battery protection unit (BPU, Battery Protection Unit).
[116]
The battery module 121 includes one or more chargeable/dischargeable battery cells. In the battery module 121 , a plurality of battery cells may be connected to each other in series and/or in parallel according to a required specification of the battery pack 120 . That is, the number and connection type of battery cells may be determined according to the required output (voltage, current, etc.) of the battery pack 120 . The battery cell may be a lithium ion (Li-ion) battery, a lithium ion polymer battery, a nickel cadmium (Ni-Cd) battery, a nickel hydrogen (Ni-MH) battery, etc. doesn't happen
[117]
The BMS 122 controls and manages the overall operation of the battery pack 120 . The BMS 122 may control the operation of the switching circuit to control the charging/discharging operation of the battery module 121 . In addition, the BMS 122 may monitor the battery module 121 and/or the voltage, current, temperature, etc. of each battery cell included in the battery module 121 . And for monitoring by the BMS 122 , a sensor or various measurement modules not shown may be additionally installed at any location such as the battery module 121 , a charging/discharging path, or the battery pack 120 . The BMS 122 may calculate a parameter indicating the state of the battery module 121, for example, SOC or SOH, based on the monitored measured values ​​such as voltage, current, and temperature.
[118]
The battery pack 120 may be communicatively connected to the vehicle controller 110 which is an upper controller. That is, the BMS 122 may transmit various data on the battery pack 120 to the vehicle controller 110 and receive a control signal related to the operation of the battery pack 120 from the vehicle controller 110 .
[119]
The communication unit 140 is a device configured to communicate with an external device. The communication unit 140 may communicate with the server 200 functioning as a charge management server through the network 500 to exchange information. For example, the communication unit 140 may transmit information about the battery module 121 transmitted from the BMS 122 to the vehicle controller 110 , for example, information such as SOC to the server 200 . In addition, the communication unit 140 may transmit information such as a charging execution request, a current location of the vehicle 100 , a driving route, and a driving speed generated based on a user's input or setting to the server 200 .
[120]
The wireless charging unit 130 is a power receiving device configured to receive power wirelessly transmitted from the outside. When the vehicle 100 stops in the charging area 321 provided in the wireless charging station 320 of the wireless charging system 300 , the wireless charging unit 130 receives power from the power transmitter of the wireless charging station 320 . do. The wireless charging unit 130 may charge the battery module 121 using the received power.
[121]
5 is a block diagram illustrating a hardware configuration of a charge management apparatus according to embodiments of the present disclosure.
[122]
The vehicle controller 110 , the battery pack 120 , the wireless charging unit 130 , and the charge management device 101 of the vehicle 100 including the communication unit 140 , in terms of hardware, include at least one processor and at least one memory. , a communication device, and a power receiving device.
[123]
Referring to FIG. 5 , the charge management device 101 may include a processor (CPU) 150 , a memory 151 , a communication interface 152 , an input/output interface 153 , and the like.
[124]
The processor 150 is at least one of the above-described processors, and may be any of various controllers capable of performing an operation by executing a computer program command, such as a CPU, MCU, microcontroller, and microprocessor. The processor 150 may process various operations and calculations in the charge management device 101 and control each configuration.
[125]
The memory 151 may store an operating system program and a computer program for performing a function of the vehicle controller 110 . The memory 151 may include a volatile memory and a non-volatile memory. For example, the memory 151 may be at least one of various storage media such as a semiconductor memory such as a RAM, a ROM, and a flash memory, a magnetic disk, and an optical disk. The memory 151 may be a memory built into the processor 150 or an additional memory installed separately from the processor 150 .
[126]
The communication interface 152 is a configuration capable of communicating with the outside by wire and/or wirelessly.
[127]
The input/output interface 153 performs input/output of various input signals and output signals. For example, the processor 150 included in the charge management device 101 may receive signals from various sensors through the input/output interface 153 . The input/output interface 153 may further include an input device configured to receive an input from a user, and an output device such as a display for displaying various signals or information generated by the charge management apparatus 101 . In addition, in the charge management device 101 according to the present disclosure, the input/output interface 153 may include a device for a wireless charging circuit in which power is received.
[128]
The processor 150 may implement a module for performing various functions of the charge management device 101 by executing the program stored in the memory 151 . The processor 150 may operate together with the communication interface 152 to perform a function as the communication unit 140 . In addition, the processor 150 may operate together with the input/output interface 153 to perform a function as the wireless charging unit 130 .
[129]
Specifically, the processor 150 as at least one processor executes a computer program command stored in the memory 151 to perform operations for charge management. Specifically, the driving route of the vehicle 100 to the destination is searched based on the destination information input by the user and the current information of the vehicle 100 . The searched driving route may be plural. For example, the driving route may be a plurality of routes searched according to conditions such as an optimal road, a free road, a priority on a highway, a shortest distance, and a minimum time. The search for the driving route may be performed by a navigation embedded in the vehicle 100 or a navigation application installed in a user device. One of the plurality of searched driving paths may be determined as a driving path through which the vehicle 100 travels.
[130]
When the processor 150 transmits the driving route information to the server 200 , the processor 150 identifies wireless charging stations 320 that can be charged while the vehicle 100 is stopped from the server 200 . Alternatively, after transmitting information about the current location and destination of the vehicle 100 to the server 200, and the server 200 directly searches for a driving route, the vehicle 100 can be charged at a wireless charging station ( 320) may be identified.
[131]
When the wireless charging stations 320 that can be charged are identified while the vehicle 100 is stopped, the corresponding wireless charging stations 320 are provided to the charging management device 101 . Accordingly, when the vehicle 100 stops at an intersection where the identified wireless charging stations 320 are installed and stops at a charging position, power is received from the wireless charging stations 320 .
[132]
The processor 150 receives SOC information or information used to calculate the SOC from the BMS 122 . In addition, the processor 150 determines the required amount of charge required to be charged based on the received SOC or the calculated SOC. The determined required charging amount may be transmitted to the server 200 .
[133]
When charging is performed by receiving power from the wireless charging station 320 , the processor 150 may update a required charging amount based on the received power. Also, the updated required charging amount may be transmitted back to the server 200 .
[134]
In addition, the processor 150 may calculate an expected arrival time to each of the identified wireless charging stations 320 based on the current location, driving route, driving speed, etc. of the vehicle 100 . The processor 150 may transmit the calculated expected arrival time to the server 200 . The required amount of charging and the expected arrival time transmitted to the server 200 may be transmitted to the charging control device 310 for controlling each wireless charging station 320 as necessary.
[135]
Meanwhile, although not shown, the charging management device 101 may include a GPS device to determine the current location of the vehicle 100 . The current location of the vehicle 100 determined by the GPS device may be transmitted from the charge management device 101 to the server 200 in real time or periodically. Also, the charging management device 101 may determine the current location of the vehicle 100 in real time, and update the driving route in real time or periodically based thereon.
[136]
6 is a flowchart illustrating an operation of a charge management apparatus according to embodiments of the present disclosure.
[137]
Referring to FIG. 6 , a user may apply for a charging service for performing charging using the wireless charging system 300 on the road while the vehicle 100 is driving ( S100 ). The application for the charging service may be made immediately before the user drives the vehicle 100 . Alternatively, the user may apply in advance to receive a charging service for the vehicle 100 . In this case, the charging service may be automatically provided whenever driving of the vehicle 100 is started. The application for charging service may be made with respect to the server 200 .
[138]
The charging management device 101 searches for a driving route when the user intends to move to the destination using the vehicle 100 ( S102 ). The charging management device 101 may search for a driving route based on the current location and destination of the vehicle 100 . In addition, the charging management apparatus 101 may directly search the driving route, but may also search the driving route in the navigation application of the user terminal or the server 200 .
[139]
The travel route determined based on the plurality of searched travel routes is transmitted to the server 200 (S104). Of course, as described above, when the server 200 searches for a driving route, the charging management device 101 may transmit information about the current location and destination of the vehicle 100 to the server 200 .
[140]
When the server 200 identifies the wireless charging stations 320 that can be charged while the vehicle is stopped on the driving path based on the driving path, the charging management device 101 receives the list of the identified wireless charging stations 320 (S106) .
[141]
The vehicle 100 drives toward the destination according to the driving route, and driving information collected in this process may be transmitted to the server 200 by the charging management device 101 ( S108 ). The driving information may include information such as a current location and driving speed of the vehicle 100 . In addition, the charge management apparatus 101 may further transmit information on the required amount of charge calculated based on the SOC of the battery module 121 and the driving distance to the destination along with the driving information.
[142]
When the vehicle 100 is stopped by a stop signal at an intersection or the like while driving, it is determined whether the vehicle 100 is stopped in a chargeable area (S110). This determination may be performed by the charging management device 101 or may be performed by the wireless charging system 300 . Then, when the vehicle is stopped in the charging area and the wireless charging efficiency from the wireless charging station 320 to the battery module 121 is greater than or equal to the reference value, charging is performed (S112). Additionally, when a charging execution request is transmitted from the charging management device 101 of the vehicle 100 to the wireless charging system 300 before starting charging, charging may actually be started. That is, charging may be executed only when the user finally determines whether or not to perform charging, and a charging execution request requesting to perform charging is transmitted from the charging management device 101 to the wireless charging system 300 .
[143]
When charging the vehicle 100, the charging management device 101 may transmit identification information for identifying the vehicle 100 to the wireless charging station 320 that transmits power or the charging control device 310 that controls the same. have. Or alternatively, the charging control device 310 may be provided with a device capable of recognizing the vehicle 100 such as a camera to identify the vehicle 100 . Since the charging control device 310 secures identification information for identifying the vehicle 100 , a charge for power used for charging later may be charged to the vehicle 100 .
[144]
Steps S108 to S116 are repeated until the vehicle 100 arrives at the destination (Yes in S114) or until it is determined that charging of the battery module 121 is no longer necessary (No in S116).
[145]
In this way, even when the vehicle 100 is temporarily stopped while driving to the destination, the battery can be wirelessly charged, thereby enabling efficient charging scheduling.
[146]
7 is a block diagram illustrating a functional configuration of a server according to embodiments of the present disclosure.
[147]
The server 200 is a server configured to provide a wireless charging service. In particular, the server 200 is a server for managing wireless charging of a vehicle on a road. Referring to FIG. 7 , the server 200 may include a control unit 210 , a communication unit 220 , a billing unit 230 , a charging management unit 240 , and a traffic information management unit 250 .
[148]
The control unit 210 controls operations of the communication unit 220 , the billing unit 230 , the charging management unit 240 , and the traffic information management unit 250 , which are components of the server 200 . When the driving route is received from the charging management device 101 , the controller 210 identifies wireless charging stations 320 that can be charged by the vehicle 100 on the driving route based on the received driving route. When the controller 210 receives information on the current location and destination instead of the driving route from the charging device 101, the controller 210 directly searches for the driving route. And the wireless charging stations 320 are identified based on the searched driving route.
[149]
The communication unit 220 is a device configured to communicate with external devices based on the control of the control unit 210 . The communication unit 220 may communicate with the charge management device 101 of the vehicle 100 through the network 500 to exchange information. For example, the communication unit 220 provides information and/or signals from the charge management device 101 on the SOC information of the battery module 121 , information on required amount of charge, current location, travel route, travel speed, charge execution request, etc. can receive
[150]
The communication unit 220 may also communicate with the wireless charging systems 300 through the network 500 . The communication unit 220 may transmit a list of the wireless charging stations 320 identified by the control unit 210 to the charging management device 101 . Also, the communication unit 220 may transmit information on the vehicle 100 that will provide the wireless charging service to the charging control device 310 that controls each of the identified wireless charging stations 320 . For example, the communication unit 220 includes identification information for identifying the vehicle 100 , a current location of the vehicle 100 , a driving speed, a driving route, a required amount of charge, and the vehicle 100 to the corresponding wireless charging station 320 . It may be possible to transmit an estimated time of arrival and the like that it takes to arrive. Of course, the above-listed information is transmitted from the charge management device 101 of the vehicle 100 to the charge control device 310 directly from the charge management device 101 of the vehicle 100 instead of the communication unit 220 transmitting the information to the charge control device 310 . could be implemented.
[151]
The communication unit 220 may receive the expected charging time of the vehicle 100 , the amount of charge that can be charged, and the like from the charging control device 310 . Such information may be transmitted before the vehicle 100 reaches the wireless charging station 320 managed by the charging control device 310 or transmitted during charging. In addition, the communication unit 220 may receive the amount of power actually charged by the vehicle 100 from the charging control device 310 . The amount of power may be a value corresponding to the amount of power transmitted to the vehicle 100 by the wireless charging station 320 .
[152]
The billing unit 230 is configured to generate billing information based on the received information on the amount of power. The billing unit 230 may generate billing information by matching identification information for identifying the vehicle 100 or the vehicle 100 transmitted from the user, payment method information, and the like, with information on the amount of electricity. By transmitting the generated billing information to a payment server such as a card company, a charge corresponding to the amount of power used to charge the battery module 121 of the vehicle 100 may be charged.
[153]
The charging management unit 240 may receive information about the expected charging time and the amount of chargeable power at each wireless charging station 320 of the vehicle 100 from the plurality of wireless charging systems 300 . In addition, the charge management unit 240 may calculate the total chargeable time, the total chargeable amount of power, etc. based on the received information. Also, the charging management unit 240 may schedule charging while the vehicle 100 is driving based on the received information and the calculated information. In this case, the charging management unit 240 may receive information on the traffic condition from the traffic information management unit 250 , and perform scheduling for charging the vehicle 100 by reflecting the received information on the traffic condition.
[154]
The traffic information management unit 250 collects information on road traffic conditions. The information on the traffic condition may include not only the amount of movement of the vehicle, but also information about an accident or construction, and information such as weather affecting the traffic flow. The traffic information management unit 250 may collect related information from external agencies (the Meteorological Administration, CCTV of the road, government offices managing the corresponding road, etc.).
[155]
8 is a block diagram illustrating a hardware configuration of a server according to embodiments of the present disclosure.
[156]
The server 200 including the control unit 210, the communication unit 220, the billing unit 230, the charging management unit 240, the traffic information management unit 250, etc. in terms of hardware, at least one processor, at least one memory , a communication device, and the like.
[157]
Referring to FIG. 8 , the server 200 may include a processor (CPU) 260 , a memory 261 , a communication interface 262 , an input/output interface 263 , and the like.
[158]
The processor 260 is at least one of the above-described processors, and may be any of various controllers capable of performing operations by executing computer program instructions, such as CPU, MCU, microcontroller, and microprocessor. The processor 260 may process various operations and calculations in the server 200 and control each configuration.
[159]
The memory 261 may store an operating system program and a computer program for performing the functions of the control unit 210 , the communication unit 220 , the billing unit 230 , the charging management unit 240 , and the traffic information management unit 250 . The memory 261 may include a volatile memory and a non-volatile memory. For example, the memory 261 may be at least one of various storage media such as a semiconductor memory such as a RAM, a ROM, and a flash memory, a magnetic disk, or an optical disk. The memory 261 may be a memory built into the processor 260 or may be an additional memory installed separately from the processor 260 .
[160]
The communication interface 262 is configured to communicate with the outside by wire and/or wirelessly.
[161]
The input/output interface 263 performs input/output of various input signals and output signals.
[162]
The processor 260 executes the program stored in the memory 261 , thereby performing the functions of the control unit 210 , the billing unit 230 , the charging management unit 240 , and the traffic information management unit 250 of the server 200 . will be able to implement The processor 260 may operate together with the communication interface 262 to perform a function as the communication unit 220 .
[163]
Specifically, the processor 260 as at least one processor executes a computer program command stored in the memory 261 to perform operations for providing a wireless charging service. Specifically, the server 200 receives information about at least a driving route and a current location of the vehicle from the vehicle 100 through the communication unit 220 . Alternatively, instead of receiving the driving route, information on the current location and destination may be received, and the driving route may be directly searched based on the received information. The server 200 identifies at least one wireless charging station 320 through which the vehicle 100 passes on the driving path based on the received driving path and information on the current location of the vehicle. In addition, information on the identified at least one wireless charging station 320 is provided to the charging management device 101 of the vehicle 100 .
[164]
The server 200 transmits the identified information about the vehicle 100 to the corresponding vehicle control device 310 controlling the at least one wireless charging station 320 . The information about the vehicle 100 may be identification information for identifying the vehicle 100 , a current location of the vehicle 100 , a driving route, a driving speed, an expected arrival time, and the like.
[165]
In addition, the server 200 receives from the charging control device 310 the amount of power charged by the battery module 121 of the vehicle 100 in correspondence with the identification information of the vehicle 100 . In addition, the server 200 may generate charging information for the vehicle 100 based on the received amount of power. The operation of generating the charging information may be generated based on the total amount of all electric power received by the vehicle 100 on the driving route.
[166]
9 is a flowchart illustrating an operation of a server according to embodiments of the present disclosure.
[167]
The server 200 receives an application for charging service for the vehicle 100 from the user (S200). As described above, the charging service application may be made immediately before the user drives the vehicle 100 . Alternatively, the user may apply in advance to receive a charging service for the vehicle 100 . In this case, the charging service may be automatically provided whenever driving of the vehicle 100 is started.
[168]
When the vehicle 100 is a vehicle that has applied for a charging service, the server 200 receives a driving route from the vehicle 100 ( S202 ). Alternatively, the server 200 receives information about the current location and destination of the vehicle 100 and directly searches for a driving route.
[169]
The server 200 identifies at least one wireless charging station 320 capable of charging while the vehicle 100 is stopped on the driving path based on the driving path ( S204 ). Information on the identified wireless charging station 320 is transmitted to the vehicle 100 (S206).
[170]
When the vehicle 100 starts driving, the server 200 receives various types of driving information from the vehicle 100 (S208). The driving information received by the server 200 may include a current location and driving speed. In addition, the server 200 may receive information and/or signals on the required charging amount and SOC information from the vehicle.
[171]
The server 200 transmits some or all of the received vehicle information to the charging control device 310 (S210). And the server 200 is the expected arrival time when the vehicle 100 is expected to arrive at the wireless charging station 320 from the charging control device 310 in real time or periodically while the vehicle 100 is driving, based on this It is possible to receive the calculated amount of charge that can be charged, and the like.
[172]
The server 200 receives the amount of charging power from the charging control device 310 when the vehicle 100 departs from the charging area from the specific wireless charging station 320 ( S212 ). And the server 200 generates billing information based on the received amount of charging power (S214). The billing information may include charging power amount, vehicle identification information, payment method information, and the like. When the vehicle 100 arrives at the destination and charging is completed in all the wireless charging stations 320 and receives the charging power from the corresponding charging control devices 310, the server 200 adds all the received charging power to It will be possible to calculate the amount of electricity of the final billing target.
[173]
The server 200 generates billing information based on the amount of electricity and transmits it to the payment server to charge the bill (S216).
[174]
In this way, even when the vehicle 100 is temporarily stopped while driving to the destination, the battery can be wirelessly charged, thereby enabling efficient charging scheduling. In addition, the server 200 can generate revenue by charging vehicles running on the road.
[175]
10 is a block diagram illustrating a functional configuration of a wireless charging system according to embodiments of the present disclosure.
[176]
Referring to FIG. 10 , the wireless charging system 300 includes a charging control device 310 and a wireless charging station 320 .
[177]
The charging control device 310 may include a control unit 311 and a communication unit 312 .
[178]
The communication unit 312 is a device configured to communicate with the server 200 and the wireless charging station 320 under the control of the control unit 311 . In addition, the charging control device 310 through the communication unit 312 may receive the signal information of the traffic light 410 from the signal controller 400 .
[179]
The control unit 311 is configured to control the operation of the wireless charging station 320 . The control unit 311 is configured to control the operating state of the wireless charging station 320 based on the vehicle information received from the server 200 and signal information of a traffic light. The controller 311 may receive identification information for identifying the vehicle 100 and location information indicating the current location of the vehicle from the server 200 as vehicle information.
[180]
The controller 311 may receive information such as a current location, a driving route, and a driving speed of the vehicle 100 that has applied for a charging service from the server 200 . The control unit 311 calculates an expected arrival time at which the vehicle 100 arrives at the chargeable area 321 of the wireless charging station 320 based on the received current location, driving route, driving speed, and the like information. In addition, the controller 311 calculates an expected charging time during which the vehicle 100 can be charged in the same manner as described with reference to FIG. 3 .
[181]
The controller 311 may receive the amount of power charged in the vehicle 100 from the wireless charging station 320 . The control unit 311 may transmit the received electric power amount to the vehicle information to the server 200 in correspondence. At this time, the control unit 311 controls the charging area ( The vehicle 100 stopped at 321 may be identified. For example, the charging control device 310 may identify the vehicle 100 by recognizing the license plate of the vehicle 100 through a camera (not shown) or the like. Alternatively, the charging control apparatus 310 may identify the vehicle 100 by performing communication with the charging management apparatus 101 of the vehicle 100 or performing communication with a user device. Alternatively, the wireless charging station 320 may communicate with the vehicle 100 to identify the vehicle 100 , and the charging control device 310 may receive the result. When the vehicle 100 identified by the wireless charging system 300 matches the vehicle information transmitted from the server 200 , the vehicle 100 may be charged.
[182]
When the signal information indicates that the signal information indicates that the traffic light 410 indicates to stop the vehicle 100 with respect to the driving direction, the control unit 311 controls the operation state of the wireless charging station 320 to switch from the sleep state to the standby state. can Also, the controller 311 may control the wireless charging station 320 to stop transmitting power before the signal for the vehicle driving direction of the traffic light 410 is changed from the mental signal to the driving signal. Through this control, power consumption of the wireless charging station 320 may be minimized. In addition, by stopping the power transmission before the vehicle 100 starts, unnecessary power consumption may be prevented.
[183]
The wireless charging station 320 is a facility configured to wirelessly transmit power to the vehicle 100 on the road. The wireless charging station 320 may be installed under the ground of the road. A wireless power transmitter capable of wirelessly transmitting power to a predetermined area under the drawing surface is provided. When the vehicle 100 stops within a predetermined area, power may be wirelessly transmitted to the vehicle 100 .
[184]
The wireless charging station 320 may include a control unit 322 , a communication unit 322 , and a power transmission unit 324 .
[185]
The controller 322 controls the operation of each component of the wireless charging station 320 . The control unit 322 determines the position of the vehicle 100 when the vehicle 100 enters the intersection and stops in the chargeable area 321 . When power is transmitted wirelessly to the vehicle 100 , the controller 322 determines whether the vehicle 100 is stopped at a position having a power transmission rate greater than or equal to a reference value. That is, the control unit 322 functions as a vehicle position determination device. The power transfer rate higher than the reference value may mean that the power transfer rate when transmitting power wirelessly between the power transmitter 324 and the wireless charging unit 130 is equal to or higher than the reference value. The power transfer rate may mean wireless charging efficiency, which is power charged in the battery module 121 of the vehicle 100 among the power transmitted from the power transmitter 324 .
[186]
The communication unit 323 is a device configured to enable exchange of information and control signals with the vehicle 100 and the charging control device 310 .
[187]
The power transmitter 324 corresponds to a wireless power transmitter that wirelessly transmits power to the vehicle 100 . The power transmission method between the power transmission unit 324 and the wireless charging unit 130 may use various well-known methods, and is not limited to a specific method.
[188]
Meanwhile, when the power transmitter 324 transmits power to the vehicle 100 , the control unit 322 calculates the amount of transmitted power. That is, the control unit 322 functions as a power amount calculation unit.
[189]
The charging management device 101 may receive, from the wireless charging station 320 , an amount of charging power that is the amount of power transmitted by the wireless charging station 320 to the vehicle 100 . The charging management device 101 provides the received charging power amount to the server 200 together with the identification information of the vehicle 100 to generate charging information.
[190]
11 is a flowchart illustrating an operation of a wireless charging system according to embodiments of the present disclosure. 12 is a flowchart illustrating a method of calculating a vehicle's available charging time by a wireless charging system according to embodiments of the present disclosure.
[191]
First, referring to FIG. 11 , the charging control device 310 receives information about the vehicle 100 that has applied for the charging service from the server 200 ( S300 ). In addition, the charge control device 310 receives signal information from the signal controller 400 (S302). Based on the received information on the vehicle 100 and the signal information, the charging control device 310 calculates a charging time for the vehicle 100 in the corresponding wireless charging station 320 (S304).
[192]
Here, referring to FIG. 12 , a method of calculating the available charging time of the vehicle 100 is specifically illustrated. The charging control device 310 receives information such as a driving speed and a current location from the server 200 (or alternatively, the vehicle 100) (S400). Then, the time taken for the vehicle 100 to reach the charging area is calculated (S402). Then, a stopping time at which the vehicle 100 will come to a stop when the vehicle 100 reaches the chargeable area is calculated ( S404 ). A chargeable time, that is, an expected charging time, is calculated based on the calculated stop time (S406). The calculated available charging time, which is the estimated charging time, is transmitted to the server 200 or the vehicle 100 (S408). Since the method of calculating the expected charging time of FIG. 12 has been described in detail with reference to FIG. 3 , an additional description thereof will be omitted.
[193]
Returning again to FIG. 11 , when the time when the vehicle 100 reaches the chargeable area 321 is calculated, the charging control device 310 controls the wireless charging station 320 to switch from the sleep state to the standby state. (S306). Thereafter, it is determined whether the vehicle 100 stops at the wireless charging station 320 ( S308 ). If the stopped vehicle is the vehicle that has applied for the charging service, it is determined whether the vehicle is stopped at a chargeable location (S310). That is, it is determined whether the power transfer rate is equal to or greater than a reference value.
[194]
When it is determined that the vehicle 100 is stopped at a chargeable position, charging is performed and power is wirelessly transmitted to the vehicle 100 ( S312 ). The wireless charging station 320 calculates the amount of power transmitted to the vehicle 100 (S314), and transmits the amount of power to the server 200 for billing (S316).
[195]
In this way, even when the vehicle 100 is temporarily stopped while driving to the destination, the battery can be wirelessly charged, thereby enabling efficient charging scheduling. In addition, the wireless charging system 300 can generate revenue by wirelessly transmitting power to vehicles that are stopped while driving on the road.
[196]
That is, according to the server 200 and the wireless charging system 300 according to embodiments of the present disclosure, the vehicle 100 is wirelessly charged while the vehicle is stopped using a plurality of wireless charging stations 320 provided under the ground of the road. A wireless charging service can be provided. The wireless charging service may include, in the server 200, identifying at least one wireless charging station that can be charged among a plurality of wireless charging stations based on the driving route of the vehicle; transmitting power from the wireless charging station to the vehicle when the vehicle is stopped at a charging position when the vehicle is stopped at an intersection in which at least one wireless charging station is installed; and generating billing information based on the amount of power transmitted to the vehicle.
[197]
In the method of providing this service, the method comprising: receiving payment method information from a vehicle; and transmitting payment information to the payment server based on the payment method information and the billing information. Here, the charging information may be generated based on vehicle information recognized by identifying the license plate of the vehicle.
[198]
In embodiments of the present disclosure, it has been described that the wireless charging station 320 communicates with the server 200 through the charging control device 310, but is not limited thereto. For example, the communication unit 323 of the wireless charging station 320 may directly communicate with the server 200 to receive at least some of the above-described information, and transmit it to the charging control device 310 .
[199]
In addition, although FIG. 3 illustrates a configuration in which one charging control device 310 is linked to one wireless charging station 320 , the present invention is not limited thereto. For example, a plurality of wireless charging stations 320 are installed at the intersection, and one charging control device 310 may be implemented to control the plurality of wireless charging stations 320 .
[200]
13 is a block diagram illustrating another example of a functional configuration of a wireless charging system according to embodiments of the present disclosure;
[201]
As an alternative embodiment, the wireless charging system 300 uses the first communication unit 330 for receiving battery SOC information, driving speed, current location information and destination information from the vehicle 100, current location information, and destination information. The charging time for calculating the available charging time of the vehicle 100 by using the route calculating unit 334 for calculating the route to the destination of the vehicle 100 and information on the chargeable area while waiting for a signal located on the route to the destination A calculator 336 may be included.
[202]
The first communication unit 330 further receives battery SOC information, driving speed, current location information, and destination information from a plurality of vehicles different from the vehicle 100 . The charging time calculator 336 may calculate the available charging time of the vehicle 100 by further considering driving speeds and current location information of a plurality of other vehicles.
[203]
The charging time calculator 336 calculates at least one chargeable area through which the vehicle 100 passes by using the route to the destination of the vehicle 100 . And the charging time calculator 336 calculates the time it takes for the vehicle 100 to reach the charging region by using the distance from the current location of the vehicle 100 to the charging region and the driving speed of the vehicle 100 . .
[204]
The charging time calculator 336 calculates a stop time when the vehicle 100 arrives in the chargingable area by using the stop-driving signal period in the chargingable area and the time taken until the charging is possible. In addition, the charging time calculation unit 336 calculates the expected charging time in the charging area of ​​the vehicle 100 using the stop time when the vehicle 100 arrives in the charging area and the number of vehicles currently in the corresponding charging area. can
[205]
The charging time calculation unit 336 calculates the expected charging time for all charging areas in the route to the destination of the vehicle 100 . In addition, the charging time calculator 336 calculates the total charging time possible while the vehicle 100 is driving to the destination by adding all the expected charging times in each charging area. The first communication unit 330 may transmit the calculated expected charging time, expected charging amount, or total charging time for the corresponding vehicle to the vehicle 100 .
[206]
The wireless charging system 300 may further include a second communication unit 338 for receiving a stop and driving signal cycle in the charging area from the signal controller.
[207]
Meanwhile, road traffic conditions may change at any time. The available charging time calculated as the vehicle travels due to the occurrence of accidents, construction, traffic jams, and an increase in the number of pedestrians will be changed in real time. Accordingly, the charging time calculation unit 336 repeatedly calculates and updates the above-described charging time calculation and the total charging time based thereon at a preset cycle.
[208]
The storage unit 332 stores the received SOC information, driving speed, current location information, and destination information of each of the plurality of vehicles. In addition, the storage unit 302 stores the formula information used to calculate the charging time of the vehicle. In addition, the storage unit 302 receives and stores the signal change period information from the signal management device 50 located in the charging area 40 received through the second communication unit 308 .
[209]
Terms such as "include", "compose", or "have" described above mean that the corresponding component may be inherent, unless otherwise stated, excluding other components It should be construed as being able to further include other components. All terms, including technical or scientific terms, may be interpreted as having the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Terms commonly used, such as those defined in the dictionary, should be construed as being consistent with the contextual meaning of the related art, and should not be construed in an ideal or excessively formal sense unless explicitly defined in the present invention.
[210]
The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.
Claims
[Claim 1]
A charge management device for managing charging of a vehicle battery, comprising: at least one processor; at least one memory storing computer program instructions that, when executed by the at least one processor, cause to perform operations; a communication device configured to be able to communicate with the server; and a power receiving device configured to wirelessly receive power, wherein the operations include at least searching for a vehicle driving route based on a destination of the vehicle, and identifying wireless charging stations capable of charging while stationary based on the driving route. and receiving power from the wireless charging station when the identified wireless charging stations are stopped at an intersection where they can be charged.
[Claim 2]
The charging management device according to claim 1, wherein the list of charging stations available for charging is received from the server in response to transmitting the travel route to the server.
[Claim 3]
The apparatus of claim 1 , wherein the operation further comprises determining a required amount of charge required to be charged, and transmitting the determined required amount of charge to the server.
[Claim 4]
The apparatus of claim 3 , wherein the operation further comprises: when receiving power from the wireless charging station, updating a required amount of charge based on the received power, and transmitting the updated required amount of charge to the server .
[Claim 5]
The charging management apparatus of claim 1, wherein the operation further comprises calculating an expected arrival time to the wireless charging station capable of charging, and transmitting the calculated expected arrival time to the server.
[Claim 6]
The apparatus of claim 1 , wherein the operation further comprises transmitting its location to the server.
[Claim 7]
a wireless charging station installed under the ground of a road and configured to wirelessly transmit power within a predetermined area; and a charging control device configured to control charging of the wireless charging station, wherein the charging control device includes: a communication unit configured to communicate with a server; and a control unit configured to control an operating state of the wireless charging station based on vehicle information received from the server and signal information of a traffic light.
[Claim 8]
The wireless charging system of claim 7 , wherein the vehicle information includes identification information for identifying the vehicle and location information indicating a location of the vehicle.
[Claim 9]
The apparatus of claim 7 , wherein the wireless charging station comprises: a vehicle position determination device for determining whether the vehicle is stopped within the predetermined area; a wireless power transmitter for wirelessly transmitting power to the vehicle; and a power amount calculator for calculating the amount of power transmitted by the wireless power transmitter.
[Claim 10]
The wireless charging system of claim 9 , wherein the charging control device receives an amount of power charged in the vehicle from the wireless charging station, and transmits the received amount of power to the vehicle information by matching it with the vehicle information.
[Claim 11]
The wireless charging system of claim 9 , wherein the vehicle location determination device determines whether the vehicle is stopped at a location having a power transmission rate greater than or equal to a reference value when power is transmitted wirelessly to the vehicle.
[Claim 12]
The method according to claim 7, wherein the charging control device, when the signal information indicates that the traffic light indicates that the vehicle is stopped with respect to the driving direction, control to switch the operating state of the wireless charging station from the sleep state to the standby state wireless charging system.
[Claim 13]
The wireless charging system of claim 7 , wherein the charging control device controls the wireless charging station to stop transmitting power before the signal for the vehicle driving direction of the traffic light is changed from a mental signal to a driving signal.
[Claim 14]
A server for managing wireless charging of a vehicle on a road, comprising: at least one processor; at least one memory storing computer program instructions that, when executed by the at least one processor, cause to perform operations; and a communication device configured to be able to communicate with a vehicle and a charging control device, wherein the operations include receiving a travel route and location information of the vehicle from the vehicle, and driving the vehicle based on the travel route and the location information A server comprising identifying at least one wireless charging station through which the vehicle passes on a path, and providing information on the identified at least one wireless charging station to the vehicle.
[Claim 15]
The server of claim 14 , wherein the operation further comprises transmitting information about the vehicle to a corresponding charging control device that controls the identified at least one wireless charging station.
[Claim 16]
The method according to claim 14, wherein the operation further comprises receiving from the charging control device the amount of power charged by the vehicle in correspondence with the information of the vehicle, and generating charging information for the vehicle based on the received amount of power server that does.
[Claim 17]
The server of claim 16 , wherein the generating of the charging information is generated based on a total of all electric power received by the vehicle on the driving route.
[Claim 18]
A method of providing a wireless charging service for wirelessly charging a vehicle while the vehicle is stopped using a plurality of wireless charging stations provided under the ground of a road, wherein, in a server, at least one of the plurality of wireless charging stations can be charged based on a driving route of the vehicle identifying one wireless charging station; transmitting power from the wireless charging station to the vehicle when the vehicle is stopped at a charging position when the vehicle is stopped at an intersection where the one or more wireless charging stations are installed; and generating billing information based on the amount of power transmitted to the vehicle.
[Claim 19]
The method of claim 18 , further comprising: receiving payment method information from the vehicle; and transmitting payment information to a payment server based on the payment method information and the charging information.
[Claim 20]
The method of claim 18, wherein the charging information is generated based on vehicle information recognized by identifying the license plate of the vehicle.