Description:A SYSTEM AND METHOD FOR CONTROLLING BATTERY CHARGING
TECHNICAL FIELD
[0001] The present subject matter generally relates to a system and method for controlling battery charging in a vehicle.
BACKGROUND 5
[0002] Conventional vehicles rely on separate starter motors and generators to perform distinct functions. The starter motor is responsible for cranking the engine to start the vehicle, while the generator produces electricity to power the vehicle's electrical systems. These separate components contribute to increased complexity, weight, and energy losses in the vehicle's electrical system. In some 10 conventional vehicles, Integrated starter generator (ISG) is incorporated. (ISG) is an electrical machine that combines the functions of a starter motor and an alternator in a single unit. It is used in mild hybrid vehicles to improve fuel economy and reduce emissions. Typically, ISG can be used as a motor which will consume energy from one or more batteries of the vehicle. ISG can also act 15 as a generator which will provide energy to the one or more batteries for battery charging. During power assist mode, the ISG acts as a motor to provide power assist to users and thus consume energy from the battery and provides this energy to engine. Once the Torque / power assist is over the consumed energy from battery or energy storage unit needs to be recharged. 20
[0003] Conventional systems provide solutions where a separate battery management system is used to charge batteries which is a costly affair. Continuous discharge without an effective charging mechanism may negatively impact the overall health and lifespan of the battery. Inadequate charging opportunities may result in premature degradation of the battery, reducing its 25 effectiveness over time. In scenarios where power assist mode is frequently engaged, the absence of a charging mechanism may limit the electric driving range. Users may experience range anxiety, affecting the adoption and
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satisfaction of electric or hybrid vehicles. In the absence of a mechanism to switch to generator mode, the ISG's potential as a multifunctional component for energy management remains underutilized. The system may fail to optimize the balance between power assistance, battery charging, and overall vehicle efficiency. Reduced efficiency in energy utilization contributes to higher overall 5 energy consumption, potentially increasing the environmental impact of the vehicle. [0004] Further, inefficiencies in the energy management system may hinder compliance with environmental regulations and standards. Lack of periodic charging in generator mode may lead to increased maintenance requirements 10 for the entire powertrain system. Frequent battery replacements and related maintenance activities may result in higher operational costs for the vehicle owner. If the ISG recharges the battery by consuming maximum energy from engine immediately, there is a power drop feel observed. Existing solutions face a challenge of lack of a mechanism to switch back to generator mode gradually 15 which causes a feeling of sudden power drop to the user. Inconsistencies in energy management may lead to an unpredictable user experience, with users uncertain about the system's behavior and performance. Dissatisfaction with the vehicle's overall efficiency and reliability may impact customer loyalty and brand perception. 20
[0001] Thus, there arises a need for a system and method to charge one or more batteries in a vehicle which can overcome above mentioned disadvantages.
[0002] Further limitations and disadvantages of conventional and traditional approaches will become apparent to one of skill in the art, through 25 comparison of described systems with some aspects of the present disclosure, as set forth in the remainder of the present application and with reference to the drawings.
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SUMMARY
[0003] The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed 5 description.
[0004] According to embodiments illustrated herein, the present disclosure provides a system for controlling battery charging in a vehicle. The system comprises a controller, one or more batteries operatively coupled to the controller, a plurality of sensors and an integrated starter generator. The ISG is 10 operatively coupled with a crankshaft of an engine of the vehicle and adapted to transmit a power assist to the crankshaft responsive to inputs from the controller. Herein immediately after the power assist for a first pre-defined duration of time, the system starts operates one or more modes to charge the one or more batteries in the vehicle. 15
[0005] In an embodiment, the ISG is configured to provide power assist during acceleration and a transition mechanism to shift to generator mode during deceleration.
[0006] In one embodiment, the one or more modes include a ramp down mode and a soft charging mode. 20
[0007] In an embodiment, the soft charging mode dynamically adjusts charging parameters based on real-time battery health and state of charge, duration of assist, throttle position and battery voltage.
[0008] In an embodiment, the controller is configured to receive one or more inputs from the plurality of sensors. 25
[0009] In an embodiment, transitioning current drawn by the ISG from a maximum value to a minimum value and simultaneously controlling a charging rate of the one or more batteries for a second pre-defined duration of time.
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[00010] According to embodiments illustrated herein, the present disclosure provides a method for controlling battery charging in a vehicle. The method comprises steps. First step is detecting vehicle riding conditions by a plurality of sensors. Second step is detecting whether the vehicle is in power assist mode by a controller. Third step is initiating a ramp down mode immediately during
5 end of the power assist mode by the controller. Fourth step is operating a soft charging mode along with the ramp down mode to provide smooth transition of an integrated starter generator from motor to generator mode to charge one or more batteries of the vehicle by the controller.
[00011] In an embodiment, transition to the generator mode is executed 10 gradually to ensure a smooth shift from the power assist to charging, reducing mechanical stress and wear on the ISG.
[00012] In an embodiment, the ISG operates in the soft charging mode during the transition to the generator mode, regulating charging current to avoid abrupt power fluctuations and enhance battery life. 15
[00013] In an embodiment, the soft charging mode further includes adjusting voltage levels to optimize battery charging efficiency during ramp-down period.
BRIEF DESCRIPTION OF DRAWINGS
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[00014] The present invention will become more fully understood from the detailed description given herein below and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention.
[00015] The detailed description is described with reference to the 25 accompanying figures, which is related to a vehicle which is a two-wheeled vehicle being one embodiment of the present subject matter. However, the present subject matter is not limited to the depicted embodiment(s). In the
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figures, the same or similar numbers are used throughout to reference features and components. [00016] Fig. 1 illustrates a side view of a vehicle, in accordance with an embodiment of the present subject matter.
[00017] Fig. 2 illustrates a block diagram of system for battery charging, in 5 accordance with an embodiment of the present subject matter.
[00018] Fig. 3 illustrates graphs to indicate one or more modes of battery charging, in accordance with an embodiment of the present subject matter.
[00019] Fig. 4 illustrates a method to explain various steps of method to charge the one or more batteries of the vehicle, in accordance with an 10 embodiment of the present subject matter.
DETAILED DESCRIPTION
[00020] The present disclosure may be best understood with reference to the detailed figures and description set forth herein. Various embodiments are 15 discussed below with reference to the figures. However, those skilled in the art will readily appreciate that the detailed descriptions given herein with respect to the figures are simply for explanatory purposes as the methods and systems may extend beyond the described embodiments. For example, the teachings presented and the needs of a particular application may yield multiple 20 alternative and suitable approaches to implement the functionality of any detail described herein. Therefore, any approach may extend beyond the particular implementation choices in the following embodiments described and shown.
[00021] Exemplary embodiments are described with reference to the accompanying drawings. Wherever convenient, the same reference numbers are 25 used throughout the drawings to refer to the same or like parts. While examples and features of disclosed principles are described herein, modifications, adaptations, and other implementations are possible without departing from the spirit and scope of the disclosed embodiments. It is intended that the following
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detailed description be considered as exemplary only, with the true scope and spirit being indicated by the following claims. [00022] References to “one embodiment,” “at least one embodiment,” “an embodiment,” “one example,” “an example,” “for example,” and so on indicate that the embodiment(s) or example(s) may include a particular feature, 5 structure, characteristic, property, element, or limitation but that not every embodiment or example necessarily includes that particular feature, structure, characteristic, property, element, or limitation. Further, repeated use of the phrase “in an embodiment” does not necessarily refer to the same embodiment.
[00023] The present invention now will be described more fully hereinafter 10 with different embodiments. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather those embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the invention to those skilled in the art. 15
[00024] The present subject matter is further described with reference to accompanying figures. It should be noted that the description and figures merely illustrate principles of the present subject matter. Various arrangements may be devised that, although not explicitly described or shown herein, encompass the principles of the present subject matter. Moreover, all statements herein reciting 20 principles, aspects, and examples of the present subject matter, as well as specific examples thereof, are intended to encompass equivalents thereof.
[00025] Various features and embodiments of the present subject matter here will be discernible from the following further description thereof, set out hereunder. It is contemplated that the concepts of the present subject matter may 25 be applied to any kind of vehicle within the spirit and scope of this subject matter. The detailed explanation of the constitution of parts other than the present subject matter which constitutes an essential part has been omitted at suitable places.
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[00026] It is an object of the present invention to provide a system and method for charging one or more batteries in a vehicle which is simple and cost effective. It is an object of the present invention to have a system and method for charging one or more batteries in the vehicle where no additional components are added and thus aims to provide a simple and cost effective way 5 of providing charging mechanism of the one or more batteries in the vehicle. It is also an object to provide ease in manufacturing and maintenance. It is also an object to provide better durability of the vehicle without additional components and cost. It is also an object to enhance vehicle performance without altering the layout and thus prevents delay in manufacturing. It is another object of the 10 present invention to improve mileage and provide improved power/pick-up and enhance market attractiveness of the vehicle. It is also an object to comply with Corporate Average Fuel Efficiency/Economy (CAFÉ) norms.
[00027] The present subject matter along with all the accompanying embodiments and their other advantages would be described in greater detail in 15 conjunction with the figures in the following paragraphs.
[00028] The present subject matter is further described with reference to accompanying figures. It should be noted that the description and figures merely illustrate principles of the present subject matter. Various arrangements may be devised that, although not explicitly described or shown herein, encompass the 20 principles of the present subject matter. Moreover, all statements herein reciting principles, aspects, and examples of the present subject matter, as well as specific examples thereof, are intended to encompass equivalents thereof.
[00029] The present subject matter may be implemented in any two-wheeled, three-wheeled and four-wheeled vehicle. However, for the purpose of 25 explanation and by no limitation, the present invention, and corresponding additional advantages and features are described through the following embodiments depicting a two wheeled vehicle.
[00030] In an embodiment, the vehicle may be a bike cum scooter type vehicle and may have main frame that extends along the center of the body of 30
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the vehicle from a front portion of the vehicle and extending in a rearwardly direction. [00031] In an embodiment, the vehicle may be a two-wheeled vehicle and may have main frame that extends along the center of the body of the vehicle from a front portion of the vehicle and extending in a rearwardly direction. 5
[00032] In an embodiment, the vehicle (100) comprises a frame assembly when viewed from a front (F) to rear (R) direction of the vehicle (100). The frame assembly comprises a headtube and a pair of upper tubes extending from the headtube from both the left and right sides. A pair of intermediate tubes extends downwardly from the head tube in the front portion (F) of the vehicle 10 (100). A pair of front suspension is mounted in the front portion (F) of the vehicle (100) connecting a front rotating member of the vehicle.
[00033] The vehicle (100) is configured to move through the front rotating member and a rear rotating member. The pair of intermediate tube joins to a front portion of a pair of down tubes on both the left and right side of the vehicle 15 (100). The pair of upper tubes extends rearwardly backward from the head tube, and the pair of upper tubes terminating at a pair of central tubes. The pair of central tubes is configured to be joined at a rear portion of the pair of down tubes. The pair of central tubes is also configured to have mounting provisions of a centre stand. 20
[00034] The vehicle (100) includes a cushion member (120) disposed at the rear end of the vehicle (100), and the seat is mounted on a pair of seat rails of the frame assembly. The pair of seat rails have a trellis internal feature created by one or more connecting tubes. This structure provides strength and rigidity to the overall frame assembly of the vehicle (100). The vehicle (100) is 25 configured to have a shock absorber disposed in the rear portion of the vehicle for absorbing impacts from the road. Further a transmission system for transmitting power to a rear rotating member (herein referred as drive wheel) is disposed in the rear portion of the vehicle (100). In one embodiment, the vehicle (100) is a two-wheeled and a three-wheeled vehicle. 30
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[00035] Fig. 1 illustrates a side view of a vehicle (100), in accordance with an embodiment of the present subject matter. Fig. 1 further illustrates parts and components of the vehicle (100). A front- rear axis has been shown by F-R directional line. The front region of the vehicle (100) illustrates one or more illuminating sources. The illuminating sources herein may include a headlamp 5 (130) to provide illumination on road to users as well as nearby riders. A front rotating member (104a) and rear rotating member (104b) has also been shown. The cushion member (120) to provide sitting place to rider has been depicted. Fuel tank (110) to store fuel has also been shown. The power source herein referred to engine (150) is also depicted in Fig. 1. For ease of handling, 10 handlebar (105) has been shown.
[00036] Fig. 2 illustrates a block diagram (200) of system for battery charging, in accordance with an embodiment of the present subject matter. Fig. 2 illustrates a plurality of sensors (206) which sense one or more vehicle conditions such as engine temperature, vehicle speed, throttle position etc. In an 15 embodiment, the plurality of sensors (206) includes throttle position sensor to detect position of throttle when vehicle is in running condition. In an embodiment, the plurality of sensors (206) includes engine temperature sensor to detect the temperature of engine. In another embodiment, the plurality of sensors (206) includes a vehicle speed sensor to detect the speed of the vehicle 20 when the vehicle is in running condition. Fig. 2 also illustrates a controller (202). The controller (202) is communicatively coupled to the plurality of sensors (206). Thus, the plurality of sensors (206) sense vehicle conditions and provides the input to the controller (202). Further, the controller (202) is communicatively coupled to Integrated starter generator (ISG) (210) and to one 25 or more batteries (204). The system ensures proper communication between the mentioned components of the vehicle (100). In an embodiment, the controller (202) provides necessary inputs to the ISG (210) to bring it back to generator mode gradually after power assist is completed. Thus, ISG (210) has been brought back to generator mode gradually to charge one or more batteries (210) 30 of the vehicle (100) once power assist is completed.
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[00037] Fig. 3 illustrates graphs (300) to indicate one or more modes of battery charging, in accordance with an embodiment of the present subject matter. Fig. 3 illustrates four graphs (300) where first graph (310) illustrates when there is no power assist, thus a straight line appears on the first graph (310) indicating no power assist. During operations without power assist a 5 constant energy (current) is obtained from engine via ISG to charge the one or more batteries or energy storage unit. Second graph (320) indicates when power assist is on. During Assist operation energy (current) is consumed from battery by ISG acting as motor and provide additional torque to engine. After Assist operation, immediately energy (current) is consumed from ISG acting as 10 generator from engine to charge battery / energy storage unit. The immediate consumption of energy from the engine reduces the torque available from engine to wheel thereby creating a power drop. Third graph (330) indicates when power assist is on but about to complete and a need to gradually change the mode of ISG from motor back to generator is required. Third graph (330) is 15 known as Assist + Ramp down mode. In Assist + Ramp down operation energy (current) consumed from ISG acting as motor is gradually reduced there by providing a smooth transition from ISG acting as motor to generator. Fourth graph (340) is known as Assist + Ramp down + Soft charging mode. In Assist + Ramp down + Soft charging, the rate of energy (current) consumed from 20 engine by ISG as generator after ramp down is smoothed. This function provides a smooth transition from ISG as Motor to ISG as generator. Thus, users will not feel sudden power drop.
[00038] Fig. 4 illustrates a method (400) to explain various steps of method to charge the one or more batteries (204) of the vehicle (100), in accordance 25 with an embodiment of the present subject matter. The method (400) comprising various steps. First step is detecting (410), by a plurality of sensors (206), vehicle riding conditions. Second step is detecting (420), by a controller (202) whether the vehicle (100) is in power assist mode. Third step is initiating (430), by the controller (202) a ramp down mode immediately during end of the 30 power assist mode. Fourth step is operating (440), by the controller (202) a soft
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charging mode along with the ramp down mode to provide smooth transition of an integrated starter generator from motor to generator mode to charge one or more batteries (204) of the vehicle (100). [00039] In an embodiment, transmission assembly transmits power from the crankshaft of the engine (150) to a drive wheel (104b) of the vehicle (100). 5
[00040] In an embodiment, various modes of ISG are a motor mode at a start condition of the vehicle (100), a generator mode during running of the vehicle (100), and a second motor mode during a running condition of the vehicle (100). In a working example, the integrated starter generator acts as a motor to provide torque to crank the engine at the start of the vehicle. Further, during running of 10 the vehicle, integrated starter generator acts as a generator and charges battery by converting energy from engine. During running condition, as and when required, integrated starter generator will again act as a motor and provide additional torque to the engine. This is called power/torque assist mode.
[00041] In an embodiment, the second motor mode includes providing a 15 torque assist to the crankshaft to increase power transmitted to the drive wheel (104b) of the vehicle (100). In an embodiment, the various modes are selected by the controller (202) responsive to the one or more inputs received by the controller (202). In an embodiment, the integrated starter generator (210) being configured to operate in the second motor mode subsequent to the start 20 condition of the vehicle (100).
[00042] In an embodiment, to enter the second motor mode different inputs are at least one of a gesture detection, a tactile detection or a pressure detection. In a working example, to enter the second motor mode, the one or more inputs are given either as a gesture detection, where the user provide a specific gesture 25 to show willingness to enter second motor mode where integrated starter generator acts as a motor to provide additional torque to engine. The user can also touch a button which receives tactile sensation and instructs the processor to enter into second motor mode. The user can be given a press button as well.
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[00043] In an embodiment, various conditions include a first set of pre defined conditions to enter the torque assist, and a second set of pre defined conditions to enable the torque assist. In an embodiment, both the first set of pre defined conditions and the second set of pre defined conditions are met to actuate the torque assist for a pre-defined duration. In an embodiment, the pre 5 defined duration ranges between 5 seconds to 25 seconds. In a preferred embodiment, the pre defined duration is 9 seconds. In an embodiment, the first set of pre defined conditions includes first inputs from a plurality of parameters, wherein the plurality of parameters include, a clutch status, an engine speed, a vehicle speed, a gear position, and a battery voltage. In an embodiment, the 10 second set of pre defined conditions include second inputs from one or more parameters, wherein the one or more parameters includes a gear position, an engine speed, a throttle position, a throttle position difference, an engine temperature, and a clutch switch.
[00044] In an embodiment, the first set of pre-defined conditions including 15 comparing, by the controller (202), with a pre-defined threshold for each of the plurality of parameters, the plurality of parameters being at least one of a clutch status, an engine speed, a vehicle speed, a gear position, and a battery voltage, wherein the plurality of parameters being received from the plurality of sensors (206) of the vehicle (100). In an embodiment, the second set of pre-defined 20 conditions including comparing, by the controller (202), with a pre-defined threshold for each of the plurality of parameters being a gear position, an engine speed, a throttle position, a throttle position difference, an engine temperature, a clutch switch wherein the plurality of parameters being received from the plurality of sensors (206) of the vehicle (100). 25
[00045] In an embodiment, the step of providing the torque assist includes providing the torque assist to the crankshaft of the engine (150) by the integrated starter generator (210) to increase power transmitted to a drive wheel (104b) of the vehicle (100).
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[00046] In an embodiment, the ISG (210) is configured to provide the power assist during acceleration and a transition mechanism to shift to generator mode during deceleration. In another embodiment, the one or more modes include a ramp down mode and a soft charging mode. The two modes helps to achieve a smooth transition and prevent the users from experiencing feeling of sudden 5 power drop.
[00047] In an embodiment, the soft charging mode dynamically adjusts charging parameters based on real-time battery health and state of charge, duration of assist, throttle position and battery voltage.
[00048] In an embodiment, the controller (202) is configured to receive one 10 or more inputs from the plurality of sensors (206).
[00049] In an embodiment, transitioning current drawn by the ISG (210) from a maximum value to a minimum value and simultaneously controlling a charging rate of the one or more batteries (204) for a second pre-defined duration of time. 15
[00050] In an embodiment, transition to the generator mode is executed gradually to ensure a smooth shift from power assist to charging, reducing mechanical stress and wear on the ISG (210).
[00051] In an embodiment, the ISG (210) operates in the soft charging mode during the transition to the generator mode, regulating charging current to avoid 20 abrupt power fluctuations and enhance battery life.
[00052] In an embodiment, the soft charging mode further includes adjusting voltage levels to optimize battery charging efficiency during ramp-down period.
[00053] Thus, the present subject matter offers an aadvantage of providing a system and method for charging the one or more batteries in a vehicle which is 25 simple and cost effective. The present subject matter offers advantage of having a system and method for controlling battery charging in the vehicle where no additional components is added and thus provides a simple and cost effective way of battery charging in the vehicle. Another advantage of the present subject
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matter is providing ease in manufacturing and maintenance. Further, the present subject matter provides better durability of the vehicle without additional components and cost. The present subject matter provides an advantage of enhanced vehicle performance without altering the layout and thus prevents delay in manufacturing. The present subject matter ensures a smooth shift from 5 power assist to charging, reducing mechanical stress and wear on the ISG. The present subject matter avoids abrupt power fluctuations and enhances battery life. Another advantage of the present subject matter is optimizing battery charging efficiency during the ramp-down period. The present subject matter also complies with Corporate Average Fuel Efficiency/Economy (CAFÉ) 10 norms. [00054] While certain features of the claimed subject matter have been illustrated and described herein, many modifications, substitutions, changes, and equivalents will now occur to those skilled in the art. It is, therefore, to be understood that the appended claims are intended to cover all such 15 modifications and changes that fall within the true spirit of the claimed subject matter.
[00055] In light of the abovementioned advantages and the technical advancements provided by the disclosed subject matter, the claimed steps as discussed above are not routine, conventional, or well understood in the art, as 20 the claimed steps enable the following solutions to the existing problems in conventional technologies. Further, the claimed steps clearly bring an improvement in the functioning of the configuration itself as the claimed steps provide a technical solution to a technical problem.
[00056] The present invention proposes an entirely new system and method 25 for controlling battery charging in a vehicle where the integrated starter generator is adapted for one or more modes responsive to one or more inputs received from the controller. Thus, the present invention is not abstract but a result of skill and labour of the inventors. Additionally, the present invention is not obvious to the person skilled in the art as it provides enhanced engine 30
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performance without altering layout or adding additional components which further adds to cost of the vehicle.
[00057]
Obvious approach would be to have a separate battery management system to charge the one or more batteries. However, the present subject matter provides a system and method for battery charging in a vehicle without 5 additional components being added.
[00058] A description of an embodiment with several components in communication with another does not imply that all such components are required, On the contrary, a variety of optional components are described to illustrate the wide variety of possible embodiments of the invention. 10
[00059] Finally, the language used in the specification has been principally selected for readability and instructional purposes, and it may not have been selected to delineate or circumscribe the inventive subject matter and is therefore intended that the scope of the invention be limited not by this detailed description, but rather by any claims that issue on an application based here on. 15 Accordingly, the embodiments of the present invention are intended to be illustrative, but not limiting, of the scope of the invention, which is set forth in the following claims.
[00060] While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The 20 various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated by the following claims.
[00061] While the present disclosure has been described with reference to certain embodiments, it will be understood by those skilled in the art that various 25 changes may be made, and equivalents may be substituted without departing from the scope of the present disclosure. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the present disclosure without departing from its scope. Therefore, it is intended that the
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present disclosure not be limited to the particular embodiment disclosed, but that the present disclosure will include all embodiments falling within the scope of the appended claims.
Reference Numerals: 5
100 – vehicle
104a- front rotating member
104b-rear rotating meeting
105- handlebar
110- fuel tank 10
120- seat
150- engine
200- System
202- Controller
206- plurality of sensors 15
300- Graphs
310- First graph
320- second graph
330- third graph
340- Fourth graph 20
400- Method
410- first step
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420- second step
430- third step
440- fourth step
, Claims:We claim:
1. A system (200) for controlling battery charging in a vehicle (100), the system (200) comprising:
a controller (202); 5
one or more batteries (204) operatively coupled to the controller (202);
plurality of sensors (206);
an integrated starter generator (210), operatively coupled with a crankshaft of an engine (150) of the vehicle (100) and adapted to transmit a 10 power assist to the crankshaft responsive to inputs from the controller (202),
wherein immediately after the power assist for a first pre-defined duration of time, the system (200) starts operate one or more modes to charge the one or more batteries (204) in the vehicle (100).
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2. The system (200) for controlling battery charging in the vehicle (100), as claimed in claim 1, wherein the ISG (210) being configured to provide the power assist during acceleration and a transition mechanism to shift to generator mode during deceleration.
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3. The system (200) for controlling battery charging in the vehicle (100), as claimed in claim 1, wherein the one or more modes include a ramp down mode and a soft charging mode.
4. The system (200) for controlling battery charging in the vehicle (100), as 25 claimed in claim 3, wherein the soft charging mode dynamically adjusts charging parameters based on real-time battery health and state of charge, duration of assist, throttle position and battery voltage.
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5. The system (200) for controlling battery charging in the vehicle (100), as claimed in claim 1, wherein the controller (202) being configured to receive one or more inputs from the plurality of sensors (206).
6. The system (200) for controlling battery charging in the vehicle (100), as 5 claimed in claim 1, wherein transitioning current drawn by the ISG (210) from a maximum value to a minimum value and simultaneously controlling a charging rate of the one or more batteries (204) for a second pre-defined duration of time.
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7. A method (400) for controlling battery charging in a vehicle (100), the method (400) comprising steps:
detecting (410), by a plurality of sensors (206), vehicle riding conditions;
detecting (420), by a controller (202) whether the vehicle (100) is in 15 power assist mode;
initiating (430), by the controller (202) a ramp down mode immediately during end of the power assist mode;
operating (440), by the controller (202) a soft charging mode along with the ramp down mode to provide smooth transition of an 20 integrated starter generator from a motor mode to a generator mode to charge one or more batteries (204) of the vehicle (100).
8. The method as claimed in claim 7, wherein transition to the generator mode is executed by incremental increase in current output to the one or more 25 batteries (204) of the vehicle (100).
9. The method as claimed in claim 7, wherein the ISG (210) operates in the soft charging mode during transition to the generator mode, regulating charging current. 30
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10.The method as claimed in claim 7, wherein the soft charging mode further includes adjusting voltage levels.