DESC:FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See section 10 and rule 13]

TITLE OF THE DISCLOSURE

A BATTERY OF AN ELECTRIC VEHICLE USED AS A POWER SOURCE FOR COMMERCIAL ACTIVITIES

APPLICANTS

Revamp Moto Pvt. Ltd.

An Indian Start up of

D49, Street 11, MIDC Satpur,
Nashik 422007
Maharashtra

THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED.

FIELD OF THE INVENTION
[0001] The present disclosure generally relates to an electric vehicle, and more particularly to a battery pack of the electric vehicle and application of the battery pack as a power supply for commercial activities. The present disclosure particularly offers an economical, user friendly and effective solution for rendering power supply to roadside commercial activities.
TECHNICAL BACKGROUND
[0002] With ever increasing threat of possible scarcity of oil and natural gases, the worldwide technology advancement has been focused on use of renewable and clean energy sources. Electric vehicles development is one of the major successful attempts to avoid oil driven transportation. The electric vehicles source the power from electric energy. A battery pack is housed within each such vehicle to power it up.
[0003] Depending on the type and classification of the vehicle, rechargeable batteries of specific capacity and specifications are removably connected to the vehicle. In current practice, such batteries are limited to be used as a power supply for the vehicle only. The car batteries, implemented in vehicles fuelled with petrol or diesel, come with output of 12V generally. Using suitable adapters and converters, these batteries can be used for personal electronic appliances utilization purpose, such as charging mobile phones. Due to limited output of these batteries, these are restricted to use for personal electronic appliances only, and not for commercial purpose.
[0004] Commercial purpose is a term with wide spectrum of applications. Street vendors, mobile food vendors, mobile good sellers and such small-scale vendors working with scarcity of adequate infrastructure face tremendous issue of electricity connection. The vendors may require the electricity for lightning a set-up, operating machines and screens and the like. For example, a street food vendor may carry a small set up with him on a vehicle. The met up may include a set of lights, Television Set, Laptop, table fan, Xerox machine, sewing machine, small refrigerator, and the like. To operate these equipments, the vendor needs electricity and he may carry auxiliary power supply with him all the time. Carrying the auxiliary supply adds up into additional equipment which leads to cumbersome and inconvenient scenario. If the vendor can use battery fitted in his vehicle, it would eliminate the need of the auxiliary power supply.
[0005] Batteries with higher voltages can be used for commercial purpose as well. In electrically charged vehicles, batteries with higher specifications and power output are used which also can be used for supplying power to commercial appliances. The food vendor, as described earlier in the example, can ride the electric vehicle to reach at his stall destination, and use the vehicle battery as a power supply. Doing so, the small vendors would be able to eliminate the need of carrying an auxiliary power supply with them, reduce the purchasing and maintaining cost of the auxiliary power supply, save space that could have been occupied by the auxiliary power supply, and avoid inconvenience that could have been caused due to transporting the auxiliary power supply every-time along with other necessary equipment.
[0006] One objective of the present embodiment is to make available at least 48DC supply for commercial activities. To avoid purchase, transport, and maintenance of an auxiliary power supply, the battery pack must serve dual purpose. First, as a power supply to the electric vehicle, and second, as a power supply to other electronic devices and appliances used for commercial activities.
[0007] Another objective of the present embodiment is to provide power supply that can charge personal electronic appliances and device.
[0008] Yet another objective of the present embodiment is to save cost of purchase and maintain the auxiliary power supply to be used to power the electronic appliances engaged in the commercial as well as personal activities of the user.
[0009] Yet another objective of the present embodiment is to utilize the battery pack for better user experience and avoid any inconvenience caused due to handling the auxiliary power supply.
[0010] Yet another objective of the present embodiment is to render maximum utilization of available sources to offer cost effective solutions.
BRIEF SUMMARY OF THE INVENTION
[0011] Electric Vehicles are provided with rechargeable battery pack that can power the vehicle to run long distance. Though not limited, around 48V battery pack is implemented in a two-wheeler vehicle in one example. Such batteries are rechargeable and removably attached to the vehicle. To fulfil the aforementioned objectives, the present invention describes an embodiment to utilize a battery pack of the electric vehicle as a power source for commercial activities.
[0012] In one embodiment, a system for operating an electric vehicle battery as a power source in a transport configuration and commercial configuration is disclosed. The system, in one implementation, the electric vehicle having the battery coupled thereto. The battery can power up the vehicle in the transport configuration. The battery can power up at least one commercial utility in the commercial configuration.
[0013] In one implementation, a direct current to alternating current invertor is coupled to the battery. The inverter is configured to receive direct current from the battery and convert the direct current to alternating current having a predetermined voltage and supply the alternating current to the commercial utility on demand.
[0014] In one implementation, the battery has a voltage in the range of 24 V to 100 V.
[0015] In one implementation, the battery communicates over Controller Area Network Protocol with the current generator.
[0016] In one implementation, the system is configured to facilitate communication of the battery with the current generator using the Controller Area Network Protocol to provide to the battery information of power requirement of the commercial utility coupled to the current generator; and cut off the power supply to the commercial utility on detecting that the power requirement is greater than power availability.
[0017] In one implementation, the cut-off of the power supply is configured to be triggered to save sufficient power for allowing a user a return trip to a predefined destination from the current location of the vehicle.
[0018] In one implementation, the inverter is having stable frequency, overcurrent protection, short circuit protection, sine waveform, and good power factor.
[0019] In one implementation, the commercial utility is one selected from the group consisting of a drilling machine, a computer, a laptop, a fan, a printer, an incandescent light, a scanner, an LED bulb, a phone charger, a refrigerator, a set-up box, a sound system, a water pump, a food blender, a rice cooker, a projector, an LED television set, a guitar amplifier and combinations thereof.
[0020] According to one implementation of the embodiment, a battery pack is removably attached to an electric vehicle. The specification is not restricted, but in one example, the battery output is of 48 DC V. 48 DC V is standard output to power two-wheeler vehicle. The battery is enabled to supply power to vehicle so that the vehicle can be operated for long distance without any need of fuel.
[0021] According to one implementation, an inverter is coupled to the battery pack to convert the DC supply into AC supply. In one example, the inverter is configured to convert 48V DC into 230V AC supply. 230AC supply can power domestic and commercial electric and electronic appliances.
BRIEF DESCRIPTION OF THE DRAWING
[0022] The present disclosure will now be described with the help of accompanying drawing, in which:
[0023] Fig. 1 illustrates a general block diagram of a system for utilizing a battery of an electric vehicle for commercial activities, in accordance with a preferred embodiment.
DETAILED DESCRIPTION OF THE INVENTION
[0024] All the terms and expressions, which may be technical, scientific, or otherwise, as used in the present disclosure have the same meaning as understood by a person having ordinary skill in the art to which the present disclosure belongs, unless and otherwise explicitly specified.
[0025] In the present disclosure, and the claims, the articles “a”, “an”, and “the” include plural references unless the context clearly dictates otherwise.
[0026] The term “comprising” as used in the present disclosure and the claims will be understood to mean that the list following is non-exhaustive and may or may not include any other extra suitable features or elements or steps or constituents as applicable.
[0027] The term “Electric vehicle” refers to an electric vehicle (EV) is a mode of transport which is powered by electricity. Unlike conventional vehicles that use a gasoline (petrol) powered engine, electric two-wheeler (motorbikes, moped, non-geared or geared bikes) powered by electricity from batteries or a fuel cell.
[0028] The term “Electrical vehicle battery” an electric vehicle battery (EVB, also known as a traction battery) is a rechargeable battery used to power the electric motors of a battery electric vehicle (BEV) or hybrid electric vehicle (HEV).
[0029] The term “inverter” refers to A power inverter, inverter or invertor which is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC).
[0030] The present disclosure relates to a system of a battery pack of an electric vehicle used as a power source for commercial activities, and wherein the system overcomes one or more drawbacks associated with the prior art.
[0031] Fig. 1 illustrates a system that includes a battery pack 104 housed in a vehicle, in accordance with one implementation of the present embodiment. The battery pack 104 may be connected with auxiliary components to facilitate functioning of the vehicle.
[0032] The electric vehicle according to an aspect of the invention includes a battery pack 104; a main electric power supply wire connected with the battery pack 104; an electric power control unit including a smoothing capacitor that smooths a voltage of the main electric power supply wire; a switch provided between the battery pack 104 and the electric power control unit, the switch being configured to switch the main electric power supply wire between conduction and non-conduction; a DC to AC inverter 108 to convert to the direct current from the battery pack 104 into alternating current to power up electrical appliances 114.
[0033] The batter pack may include one or more batteries, connected in series or parallel configuration with each other, a battery pack 104 housing, where the battery pack 104 housing encloses a battery pack 104 interior. The batter pack housing may be given with a number of receptacles to receive the battery cells. The battery pack 104 may be placed on a vehicle body, however, in a preferred embodiment, the battery pack 104 housing is placed underneath the vehicle seat. The battery pack 104 housing may have a charging port and an output port, in one implementation. The battery pack 104, enclosed within the battery pack 104 housing may be charged and discharged in accordance with vehicle use.
[0034] Battery modules and battery packs 104 of the aforementioned type are increasingly being used as energy storage in electric vehicles. Electric vehicles have an electric motor 105 that drives the vehicle either alone or, in so-called hybrid electric vehicles, specifically in cars, in combination with a fuel motor, and a number of battery cells to store the energy required to operate the electric motor 105. In order to achieve the highest possible driving performance before the battery cells must be recharged, usually a large number of battery cells with a large total capacity is integrated into the vehicle. Battery cells in the present case are in particular rechargeable battery cells, i.e., Batteries.
[0035] A predetermined number of battery cells are typically combined to form a battery pack 104 in which the battery cells are surrounded by a battery pack 104 housing. Several such battery cells are further typically combined into a battery pack 104, which is then installed in an electric vehicle to power up one or more electrically powered compliances.
[0036] The battery pack 104, in accordance with the implementation, is removably attached at the vehicle. The battery pack 104, according to one implementation, can be enclosed within a housing, where the housing could be fixed on a vehicle. The place of fixing the housing may vary as per vehicle design and housing specifications. In one example, the battery can output 48V DC. It can be enough output to power the two-wheeler vehicle. It can be understood that the main function of the battery pack 104 can be to power up the vehicle motor 105 in a transport configuration.
[0037] In one implementation of the present embodiment, the inverter 108 circuit, alternatively referred as to the inverter 108, is coupled to the battery back. The inverter 108 is mainly configured to convert DC supply into AC supply. The inverter 108 performs conversion of direct current to an alternating voltage by converting the energy stored in the dc sources like battery and rectifiers. The batteries in the inverter 108 store energy in the form of direct current and the home appliances 114 we use need alternating current. In one example of the implementation, 48 DC supply is converted into 230AC V supply. Aforementioned example is to be seen in view of exemplary purpose, and not in in limiting and restricting way. The battery could of various capacity and specifications, and in accordance with the battery capacity and expected AC voltage, a suitable inverter 108 can be implemented.
[0038] In one implementation, the inverter 108 itself may have attached a set of connectors at output terminal, such as an electrical power output wire. In another implementation of the same embodiment, a set of connectors can be coupled to the output of the inverter 108 externally and enclosed within the housing to provide means of charging the electrically operate devices. For example, a plug or an extension socket. The electrically operated devices, such as mobile, laptop, lights and such equipments can be plugged into the connector for charging. In another example, the present embodiment can be utilized to charge cold boxes. The cold boxes are used by milk suppliers, meat vendors and distributors, cold beverages distribution and transport. Aforementioned example is to be seen in view of exemplary purpose, and not in in limiting and restricting way.
[0039] The inverter 108 may be of different types. In one implementation, the inverter 108 is a pure sine wave inverter 108. In another implementation, the inverter 108 is a modified sine wave inverter 108. In another implementation, the inverter 108 is a square wave inverter 108. The inverter 108 is configured to fetch power from the battery pack 104 in DC form and convert it into AC form producing the pure sine waveform, the modified sine waveform, or the square waveform. Further, the inverter 108 is selected and configured to have stable frequency, overcurrent protection, short circuit protection, and good power factor.
[0040] In one implementation, a controller 106 is implemented between the battery pack 104 and the inverter 108 circuit in order to render functionality enablement and establish communication between the battery pack 104 and the inverter 108. The controller 106, in one implementation, may include but may not be limited to a cut off switch 108 and a communication module 112.
[0041] In one implementation, the cut off switch 108 is provided to cut-off the power supplied by the battery pack 104 to the inverter 108. The controller 106 may be configured to keep a track of battery charge. The controller 106 may be also configured to store a predefined location or destination by the user. In one example, the predefined destination may be user’s home where the user may return from the location where the vehicle is parked currently. The controller 106 may calculate the battery charge that may require to travel from the current location to the predefined location. Once the battery charge reaches to a level below which the charge may be insufficient to travel between the current location and the predefined location. In one implementation, the controller 106 may be configured to cut-off the power at certain level of the charge. In another implementation, the controller 106 may be configured to calculate the distance and the charge required to travel that distance. The cut off switch 108 may be provided to ON or OFF the power supply connection between the battery pack 104 and the inverter 108.
[0042] To establishment the communication between the battery pack 104 and the inverter 108, the communication module 112 is implemented. The communication module 112 may be based upon a Controller 106 Area Network protocol. The CAN bus, as known in the art, is a robust vehicle bus standard designed to allow microcontroller 106s and devices to communicate with each other's applications without a host computer. It is a message-based protocol, designed originally for multiplex electrical wiring within automobiles to save on copper, but it can also be used in many other contexts. For each device, the data in a frame is transmitted serially but in such a way that if more than one device transmits at the same time, the highest priority device can continue while the others back off. Frames are received by all devices, including by the transmitting device.
[0043] In one example, an optimal management of Lithium batteries requires communication between the battery and the whole system, like inverter 108s, chargers, display, SCADA and so on. Most Lithium batteries use a CAN bus (as physical layer) but must have specific protocols implemented to communicate. The Xcom-CAN has several protocols implemented for battery management.
[0044] In one implementation, the CAN bus is configured to provide the information to the battery, where the information relates to the power requirement of the commercial utility coupled to the inverter 108.
[0045] In one implementation, the CAN bus is configured to cut off the power supply to the commercial utility on detecting that the power requirement is greater than power availability.
[0046] The inverter 108, in communication with the battery, is configured to power up the commercial appliances 114. The commercial utility is one selected from the group consisting of a drilling machine, a computer, a laptop, a fan, a printer, an incandescent light, a scanner, an LED bulb, a phone charger, a refrigerator, a set-up box, a sound system, a water pump, a food blender, a rice cooker, a projector, an LED television set, a guitar amplifier, and combinations thereof.
[0047] Table 1 illustrates resulting data from experiments conducted using the battery pack 104 as a power source for different appliances. It would be understood that different types of appliances may have different power requirements based upon the size and function to be performed. For example, a laser printer may require 800 W power, whereas a tablet charger may require merely 15 W. Table 1 compares the types of appliances, power requirements, and number of hours for which each appliance can be powered up by the battery pack 104. It can be seen that the higher power requirement may cause lesser hours of power backup. For example, the laser printer requires 800 W and it can be powered up for 1.88 hours. On the other hand, a tower fan which requires hardly 60W, it can be powered up for 25 hours.

Sr no Appliances Power(W) No. of Appliances for 1 hour Each
No. of Hrs that 1 appliance can run(88.5% DOD)
1 Corded Drill 850.00 1.76
2 Laser Printer 800.00 1.88
3 Rice Cooker 800.00 1.88
4 Food Blender 400.00 3.75
5 Submersible Water Pump 400.00 3.75
6 Domestic Water Pump 300.00 5.00
7 Projector 270.00 5.56
8 Kitchen Extractor Fan 200.00 7.50
9 Cordless Drill Charger 150.00 10.00
10 100W light bulb (Incandescent) 100.00 15.00
11 Laptop Computer 100.00 15.00
12 Home Sound System 95.00 15.79
13 Sewing Machine 80.00 18.75
14 60W light bulb (Incandescent) 60.00 25.00
15 Pedestal Fan 60.00 25.00
16 Tower Fan 60.00 25.00
17 Fluorescent Lamp 45.00 33.33
18 Computer Monitor 30.00 50.00
19 Guitar Amplifier 30.00 50.00
20 Inkjet Printer 30.00 50.00
21 Set Top Box 30.00 50.00
22 Table Fan 25.00 60.00
23 Tube Light (1500mm) 22.00 68.18
24 Scanner 18.00 83.33
25 22 Inch LED TV 20.00 75.00
26 Tablet Charger 15.00 100.00
27 Extractor Fan 12.00 125.00
28 LED Light Bulb 10.00 150.00
29 Tablet Computer 10.00 150.00
30 Phone Charger 7.00 214.29
31 LED Christmas Lights 5.00 300.00
32 Refrigerator 200.00 7.50
Table 1
Type of Vendor Range Appliances No. of Appliances Power(W) Usage in hrs Total Power No. of Appliances for 1 hour Each
No. of Hrs that 1 appliance can run
Vegetable Vendor (1 Day and more than 20% Battery Capacity Left) 70Kms CFL Bulbs 2 20 3 60 20.54794521
Digital weighing machine 1 15 10 150
Fan 1 30 12 360
Mobile Charger 1 18 3 54
624
Snacks Vendor (1 Day and 10% Battery Capacity Left) 65kms Television 1 20 5 100 8.196721311
CFL Bulbs 2 20 5 100
Fan 1 30 5 150
Mobile Charger 1 18 3 54
Sound System 1 95 5 475
879
Power Device (1 Day and 14% Battery Capacity Left) 50Kms Inkjet Printer 2 50 6 300 7.211538462
Fan 1 30 9 270
CFL Bulbs 1 10 1 10
Laptop Charger 1 100 3 300
Mobile Charger 1 18 3 54
934
Hiking or Adventure use (Return from hiking While still having 4% charge Remaining in the battery) 70kms Fan 1 30 8 240 3.789792825
Laptop Charger 1 100 2 200
Coffee Maker 1 800 0.166 132.8
Sound System 1 95 4 380
Multiple Charger 1 18 4 72
CFL Bulbs 2 20 4 80
1104.8
Table 2
[0048] Table 2 illustrates experimental data illustrating how many hours the battery pack 104 can power up at least one appliance that may be utilized for a certain type of a vendor. It can be understood that different type of vendors may require different type of appliances having different power requirements. For example, vegetable vendors may require blubs, fan, digital weighing machine, and mobile charger. For a vegetable vendor, 2 CFL bulbs, 1 fan, 1 weighing machine, 1 mobile charger may be enough. Power required for 2 CFL bulbs may be 20 W, weighing machine 15W and so on. Further, 2 CFL bulbs may be required to turn ON for approximately 3 hours, consuming total power of 60 W. Likewise, the cluster of the appliances required by the vegetable vendor may require total power of 624W. The battery pack 104 may be able to power up the appliance consuming 624W for about 20. 5478 hours. Hourly data is calculated for different types of vendors, considering the common appliances they need, number of each appliance, and average turn ON period for total number of each type of appliance. It is to be understood that the assumptions are based upon average usage and requirements of different type of vendors. Based upon, scope of the business and size of the stall, the numbers may vary. The experimental data is calculated based upon an exemplary embodiment.
[0049] It can be understood that the Table 1 and Table 2 exhibits experimental data relating to an exemplary embodiment. The data is provided for illustration purpose, and shall not be considered as a limitation in view of different embodiments rendering different range of output, however, based on the similar inventive concept.
[0050] A person skilled in the art can understand that the system would enable the small-scale seller, street vendors to utilize the vehicle for transport and the battery of the same vehicle as a power supply required to run the respective business. Utilization of the battery pf the electric vehicle as power supply for commercial and personal appliances 114 would render the best user experience in terms of maximum utilization of the available resources. The system would result in cost effectiveness, less purchase, transport and maintenance cost, user convenience and storage space saving.
[0036] While considerable emphasis has been placed herein on the components and component parts of the preferred embodiments, it will be appreciated that many embodiments can be made and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other changes in the preferred embodiment as well as other embodiments of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.
,CLAIMS:We claim:
1. A system for operating an electric vehicle battery as a power source in a transport configuration and commercial configuration, the system comprising:
- the electric vehicle having the battery coupled thereto, wherein the battery can power up the vehicle in the transport configuration, and wherein the battery can power up at least one commercial utility in the commercial configuration;
- a direct current to alternating current invertor, coupled to the battery, configured to:
o receive direct current from the battery and convert the direct current to alternating current having a predetermined voltage; and
o supply the alternating current to the commercial utility on demand.
2. The system as claimed in claim 1, wherein the battery has a voltage in the range of 24 V to 100 V.
3. The system as claimed in claim 1, wherein the battery communicates over Controller Area Network Protocol with the current generator.
4. The system as claimed in claim 3, further configured to facilitate communication of the battery with the current generator using the Controller Area Network Protocol to:
a. provide to the battery information of power requirement of the commercial utility coupled to the inverter; and
b. cut off the power supply to the commercial utility on detecting that the power requirement is greater than power availability.
5. The system as claimed in claim 4, wherein the cut-off of the power supply is configured to be triggered to save sufficient power for allowing a user a return trip to a predefined destination from the current location of the vehicle.
6. The system as claimed in claim 1, wherein the inverter is having stable frequency, overcurrent protection, short circuit protection, sine waveform, and good power factor.
7. The system as claimed in claim 1, wherein the commercial utility is one selected from the group consisting of a drilling machine, a computer, a laptop, a fan, a printer, an incandescent light, a scanner, an LED bulb, a phone charger, a refrigerator, a set-up box, a sound system, a water pump, a food blender, a rice cooker, a projector, an LED television set, a guitar amplifier and combinations thereof.
For Revamp Moto Pvt. Ltd.

Shaikh Saad Jawed,
Authorized Agent of Applicant

To,
The Controller of Patents,
The Indian Patent Office, Mumbai