CN103022548A - Queue type battery pack of electric vehicle - Google Patents
Queue type battery pack of electric vehicle Download PDFInfo
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- CN103022548A CN103022548A CN2012105770174A CN201210577017A CN103022548A CN 103022548 A CN103022548 A CN 103022548A CN 2012105770174 A CN2012105770174 A CN 2012105770174A CN 201210577017 A CN201210577017 A CN 201210577017A CN 103022548 A CN103022548 A CN 103022548A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention provides a queue type battery pack of an electric vehicle. The queue type battery pack of the electric vehicle is characterized by comprising more than two battery single bodies capable of individually working; the battery single bodies are arranged on a guide rail according to a certain sequence, and only can be pushed into from one end of the guide rail and taken out from the other end, so that the electric conversion can be completed. A power supply management system controls the battery single bodies to be charged and discharged, and only switches on one battery single body once. In a discharge process, the battery single bodies are sequentially discharged from front to back; and in a charge process, the battery single bodies are sequentially charged from back to front. Electricity indicator lamps respectively indicate electricity states of the battery single bodies. The battery pack has the following characteristics in that 'conversion electricity' can be selected according to demands, and a user has no need of considering residual electricity of batteries; the battery single bodies alternatively work, so that the service life can be prolonged; if one of the battery single bodies has a fault, the battery pack still can normally work; and the quantity of the vehicular battery single bodies can be randomly selected according to the demands, so that a part of the battery single bodies can be discharged, and the vehicle load can be reduced.
Description
Technical field
The present invention relates to a kind of queue-type battery pack of electric motor car.
Background technology
The growing tension of petroleum resources, with and the air pollution that causes, force people to remove to seek new cleaning fuel as the power source of future automobile.With regard to present technical conditions, driven by power is the feasible method that replacing fuel oil drives.The development pure electric vehicle has been listed country's 12 planning in.According to the object of planning of Chinese electric motor car, will reach 1,000,000 to the year two thousand twenty China electric motor car recoverable amount.
At present, although electrokinetic cell can satisfy the needs of automobile to a certain extent, some general problems still remain to be improved, and are long such as the charging interval, finite capacity, and weight is too high, oversize, and cost is high, fail safe and environmental impact etc.Prior art, small-sized electric charging are once consuming time not to be waited to a few hours at 10 minutes.So the long charging interval certainly will affect popularizing of electric automobile.One comes the car owner to be reluctant to wait as long for; The 2nd, increase the weight of the city and block up.So national grid proposes ' changing electricity ' pattern: vehicle is inserted the battery that is full of electricity in the fixed location with the battery taking-up, and battery is concentrated charging at charging station.Change power mode and adopt in some public transports, such as bus, sanitation cart.
Change power mode and really can very might as well solve the continuous electric problem of electric motor car in ground.But a lot of weak points also.Wherein one is exactly the problem of battery dump energy.Adopt charge mode, be filled with the total electric weight-dump energy of electric weight=battery, increase thus course continuation mileage, with according to being filled with electric energy tariff, can also select as required to be filled with electric weight.Then be difficult to quantize charging but change power mode, change each time electricity, battery will be by integral replacing, and the dump energy in the battery is retracted, and changes the battery that completely fills.Propose in the patent 200510084301.8 and 200610057995.0 to calculate cost difference by network management and dump energy measurement.But all will change the battery that is full of electricity, still being forced to property consumption of user is like disposable top off at every turn.Obviously, the more cost saving of self-service charging after parking.And in a single day battery breaks down, and vehicle can't move.Patent 01101414.8 and 03239294.X propose to adopt the segmented battery independently-powered, but its battery structure and management mode still can't effectively address the above problem.For the civil nature of following electric motor car, await to design more scientific vehicle power especially.
Summary of the invention
The invention provides a kind of queue-type battery pack of electric motor car.
A kind of electric motor car formation formula battery pack comprises 2 above battery cells, it is characterized in that, also comprises for the guide rail of arranging battery cell; Power-supply management system; The battery capacity indication lamp.
As of the present invention preferred, described battery cell is arranged in order on described guide rail and is placed; Battery cell can be along the unidirectional slip of guide rail, and can only push from the entrance of guide rail one end, takes out from the outlet of the other end; Described power-supply management system is controlled described battery cell, makes it by the permanent order charge or discharge, and only opens one of them battery cell at every turn.
As of the present invention preferred, battery cell is arranged on guide rail in order, is followed successively by full electric battery cell, non-full electric battery cell and without electric battery cell by guide rail entrance to Way out.
As of the present invention preferred, the user can become the number of on-vehicle battery monomer.
As of the present invention preferred, described guide rail is provided with buckle, battery cell can be fixed on corresponding position on the guide rail after pressing buckle; When battery cell was fixed up at guide rail, its positive and negative electrode just in time docked with the corresponding pin of battery management system.
As of the present invention preferred, described guide rail is provided with buckle, battery cell can be fixed on corresponding position on the guide rail after pressing buckle; When battery cell was fixed up at guide rail, its positive and negative electrode just in time docked with the corresponding pin of battery management system.
As of the present invention preferred, described battery cell can be along the unidirectional slip of described guide rail, and can only push from guide rail one end, takes out from the other end.
As more preferred mode of the present invention, the entrance of guide rail one end is used for pushing the battery cell that is full of electricity, and the outlet of the guide rail other end is used for taking out the battery cell without electricity.
As of the present invention preferred, power-supply management system can cycle detection and is obtained each battery cell state, be respectively full electricity, non-full electricity or electroless state, and the color of regulating in real time the battery capacity indication lamp of corresponding battery cell, the full electricity of green indication, yellow is indicated non-full electricity, and red indication is without electric, and lamp does not work and indicates vacancy or battery cell to break down; Power-supply management system was lower than for 1 second to the cycle period that battery pack detects.
As of the present invention preferred, each battery cell is identical, can work independently, and by the permanent order charge or discharge, only opens one of them battery cell at every turn, by described power-supply management system control; Described power-supply management system comprises a cover electronics control original paper, one group of pin that docks with the battery cell electrode, a charging inlet and an electric energy output interface.
As of the present invention preferred, described power-supply management system passes through to detect in real time the electric weight of each battery cell, and controls the operating state of each battery cell; Described power-supply management system is finished charging by charging inlet and extraneous power supply UNICOM; Be vehicle power supply by electric energy output interface.
The present invention also provides a kind of electric motor car, it is characterized in that, has above-mentioned each described battery pack.
What the present invention also provided above-mentioned battery of electric vehicle group changes method for electrically, charging method and charging method.
A kind of method for electrically that changes that uses above-mentioned each described battery of electric vehicle group is characterized in that, takes out without electric battery cell from the guide rail outlet, and pushes the full electric battery cell that is full of electricity from the guide rail entrance.
A kind of charging method that uses above-mentioned each described battery of electric vehicle group, the method may further comprise the steps:
Setting up procedure, power-supply management system detects and obtains each battery cell state, is respectively full electricity, non-full electricity or electroless state; At first open non-full battery cell, the output electric energy; If do not detect the full electric monomer that non-full monomer is just opened the most close guide rail outlet, the output electric energy;
Switch step, power-supply management system be the current unlatching battery cell of cycle detection electric weight periodically, when finding that this battery cell electric weight is electroless state, opens first adjacent full electric battery cell, disconnects current battery cell again, uninterruptedly exports electric energy; When finding fail battery monomer or pin vacancy, skip this battery cell or pin, open next battery cell, continue above-mentioned discharge step.
A kind of charging method of using above-mentioned each described battery of electric vehicle group, the method may further comprise the steps:
Setting up procedure, power-supply management system detects and obtains each battery cell state, is respectively full electricity, non-full electricity or electroless state; At first open non-full battery cell, charge; If there is not non-full monomer, just open the most close guide rail entrance without electric battery cell, charge;
Switch step, power-supply management system be the current unlatching battery cell of cycle detection electric weight periodically, automatic disconnection after it is full of electricity, then open adjacent without electric battery cell, successively to have or not electric battery cell charge; When running into fail battery monomer or pin vacancy, skip this battery cell or pin, open next battery cell, continue above-mentioned charge step.
Among the present invention, several battery cells are arranged in sequence in the on-vehicle battery, but each monomer charge independence, discharge, change electricity, and are undertaken by fixing order, automatically finish by vehicle-mounted power management system.When changing electricity, the queue-type order by ' first in first out, last-in, last-out ' guarantees that each monomer changes the motor meeting.This technology can solve the series of problems in the electric motor car use:
1. several monomers are separate, and the user can select ' changing electricity ' amount as required;
2. elimination changes the dump energy charging problem in the electric process;
3. battery pack adopts the charge/discharge cycle pattern of queue-type, is conducive to prolong the battery cell life-span;
4. certain monomer breaks down, and battery pack still can normal power supply, guarantees vehicle operating, change the fault monomer than the whole battery expense of replacing lack many;
5. can unload the part battery cell according to the needs of the distance of travelling, alleviate vehicle load, save the energy.
In a word, electric motor car adopts popularization and the commercial operation that the queue-type battery pack is very beneficial for changing power mode.
Description of drawings
Accompanying drawing 1 is the battery pack structure schematic diagram.
Accompanying drawing 2 is power-supply management system workflow diagrams.
Embodiment
Embodiments of the present invention below are described with reference to the accompanying drawings.
Embodiment 1
Electric motor car formation formula battery pack as shown in Figure 1 comprises 2 above battery cells 1, characterized by further comprising for the guide rail 2 of arranging battery cell; Power-supply management system 3; Battery capacity indication lamp 4.
Battery cell is arranged in order on guide rail and is placed, and battery cell can be along the unidirectional slip of guide rail.
Battery capacity indication lamp 4 is turn colors in real time, indicates the state of charge of corresponding battery cell to be: full electric 1a, and non-full 1b, or without electric 1c.
The battery cell that is full of electricity when changing electricity pushes from the entrance of guide rail one end, takes out from the outlet of the guide rail other end without the battery cell of electricity.For ease of description, push end and be defined as the place ahead, battery cell takes out end and is defined as the rear.That is, push the battery cell that is full of electricity from guide rail the place ahead, will be without all or part of extraction of the battery cell of electricity from the guide rail rear.
As depicted in figs. 1 and 2, under the discharge mode, power-supply management system is connected first non-full battery cell 1b, and periodic cycle detects this battery cell electric weight, finds that this battery cell electric weight is lower than threshold values, i.e. electroless state, just connect adjacent full electric battery cell 1a, then disconnect current battery cell, continue the output electric energy, connect successively from back to front the battery cell that electricity is arranged in front.
Under the charge mode, power-supply management system is connected first non-full battery cell 1b and is charged, and is full of automatically it to be disconnected afterwards, then connects adjacently without electric battery cell 1c, continues charging, from front to back successively to the battery cell charging without electricity at rear.
If battery cell breaks down, power-supply management system is skipped this battery cell, connects next battery cell and finishes discharge or charging.
In the use procedure, the user can reduce the battery cell quantity of the vehicle of packing into as required, alleviates vehicle load.
More specifically execution mode can for:
As shown in Figure 1, battery is comprised of four parts: battery cell 1, guide rail 2, power-supply management system 3 and indicator light 4.Battery is comprised of the battery cell more than 2, and each battery cell is identical, can work independently, and by the permanent order charge or discharge, only opens one of them battery cell at every turn, is controlled by power-supply management system.Power-supply management system is a cover electronics control original paper, and its operation principle sees below.
As shown in Figure 1, battery cell is arranged on the guide rail with card form, can be along the unidirectional slip of guide rail, and can only push from the entrance 2b of guide rail one end, take out from the outlet 2c of the guide rail other end.Guide rail is provided with buckle 2a, battery cell can be fixed on corresponding position on the guide rail after under the buckle.When battery cell was fixed up at guide rail, its positive and negative electrode 1d just in time docked with the corresponding interface 3a of battery management system.
As shown in Figure 1, the corresponding positions of the battery cell is equipped with an indicator light on guide rail, and by power-supply management system control, red, yellow and green indicating lamp be the state of charge of corresponding battery cell respectively: full electric 1a, non-full 1b and without electric 1c.Indicator light does not work, and represents that this position vacancy or this monomer break down.Bridge control console has one group of identical indicator light, is convenient to the driver and understands current battery pack state.
As shown in Figure 1, power-supply management system passes through to detect in real time the electric weight of each battery cell, and controls the operating state of each battery cell.Power-supply management system is finished charging by charging inlet 3b and extraneous power supply UNICOM; Be vehicle power supply by electric energy output interface 3c.
As shown in Figure 2, according to the working method of electric motor car, battery pack has three mode of operations: charge mode, discharge mode and change power mode, by the driver by the button preference pattern on the bridge control console.
As shown in Figure 2, under the discharge mode, power-supply management system detects and obtains each battery cell state: full electricity, and non-full, without electricity, then connect non-full monomer, if there is not non-full monomer just to connect the full electric monomer of the most close guide rail outlet 2c, output electric energy.Simultaneously, the power-supply management system periodic cycle detects this monomer electric weight, and when finding that this battery cell electric weight is lower than threshold values, namely electroless state is just connected adjacent full electric monomer, and then the current monomer of automatic disconnection continues the output electric energy.Cycle period was controlled in 1 second herein, to guarantee the continuity of power supply output.Here point out, very ripe to the detection technique of battery electric quantity, and extensive use.
As shown in Figure 2, under the charge mode, power-supply management system detects and obtains each battery cell state: full electricity, non-full, without electricity, then connect non-full monomer, if there is not non-full monomer, connect the most close guide rail entrance 2b without electric monomer, at this moment external power supply is this monomer charging.Simultaneously, power-supply management system is this monomer electric weight of cycle detection ceaselessly, automatically it is disconnected if be full of just, then connects adjacently without electric monomer, continues charging.To the last a monomer-free is full of electricity, with its disconnection.
As shown in Figure 2, change under the power mode, power-supply management system detects each battery cell state that also obtains: full electricity, and non-full, without electricity, open the indicator light of corresponding monomer, the full electricity of green light indication, amber light refers to non-full, red light is without electricity, do not work indication vacancy or break down of lamp.At this moment can extract out without electric monomer from guide rail outlet, also can push from the guide rail entrance and be full of electric monomer.Battery status on the power-supply management system cycle detection guide rail, and the color of real time altering indicator light.
By above design, battery pack by several independently battery cell form, only connect one of them at every turn, automaticallyed switch by power-supply management system, partial monosomy breaks down, but other monomer normal power supply.Simultaneously, change the fault monomer than the whole battery pack expense of replacing lack many.
By above design, the user can freely select on-vehicle battery monomer number as required, unloads the part battery cell, alleviates vehicle load, saves the energy.
Further improvement on the basis of embodiment 2 can for:
As shown in Figure 1, battery cell 1 both sides are provided with groove 1e, and battery cell is stuck on the guide rail.Guide rail 2 one ends are that entrance 2b and the other end are outlet 2c, are respectively equipped with one-way interfaces, and limiting battery cell can only push from guide rail entrance 2b, and 2c takes out from the guide rail outlet; Battery cell 1 is arranged in order at guide rail 2, by guide rail entrance 2b to exporting that the 2c direction is followed successively by full electric battery cell 1a, non-full electric battery cell 1b and without electric battery cell 1c.
Under arbitrary patterns, power-supply management system 3 cycle detection are also obtained each battery cell state, and regulate in real time the color of the battery capacity indication lamp 4 of corresponding battery cell, as: the full electricity of green indication, yellow is indicated non-full electricity, and red indication is without electric, and lamp does not work and indicates vacancy or battery cell to break down; Power-supply management system can be lower than for 1 second to the cycle period that battery pack detects.
Embodiment 4
A kind of method for electrically that changes that uses battery of electric vehicle group of the present invention takes out without electric battery cell from the outlet of guide rail one end, and pushes the full electric battery cell that is full of electricity from the entrance of the guide rail other end.
By design of the present invention, can realize the puzzlement of freely selecting and eliminate ' dump energy ' of ' changing electricity ' amount.For example, battery pack is comprised of 10 battery cells, owing to only open a battery cell at every turn, so only have a non-full battery cell.Institute's battery cell of non-full monomer one side is all electroless state, and all monomers of opposite side are all full power state.Only need when changing electricity will without all or part of extraction of electric monomer, push the monomer that is full of electricity from the guide rail entrance from the guide rail outlet.The user can freely select to change amount of monomer.A battery cell at most only stores the electric weight of battery pack 10%.Therefore, select to keep non-full monomer, little on the total electric weight impact of battery pack, also little on the course continuation mileage impact of vehicle; This monomer is changed in selection, and electric quantity loss is also super only 10%, and also can be by measurement deducts the fee to dump energy.
By above design, adopt the queue-type of ' first in first out, last-in, last-out ' to change electric order, the chance that each battery cell can both obtain discharging, extending battery life.
Embodiment 5
A kind of charging method that uses battery of electric vehicle group of the present invention, the method may further comprise the steps:
Setting up procedure, power-supply management system detects and obtains the state of charge of each battery cell, is respectively full electricity, non-full electricity or electroless state; At first open non-full battery cell, the output electric energy; If do not detect the full electric monomer that non-full monomer is just opened the most close guide rail outlet, the output electric energy;
Switch step, power-supply management system be the current unlatching battery cell of cycle detection electric weight periodically, when finding that this battery cell electric weight is electroless state, opens first adjacent full electric battery cell, disconnects current battery cell again, uninterruptedly exports electric energy; When running into fail battery monomer or vacancy, skip this battery cell or room, open next full electric battery cell, continue above-mentioned discharge step.
Embodiment 6
A kind of charging method of using battery of electric vehicle group of the present invention, the method may further comprise the steps:
Setting up procedure, power-supply management system detect all battery cell electric weight, and obtain each battery cell state and be: full electric, non-full or electroless state; At first open non-full battery cell, charge; If there is not non-full monomer, just open the most close guide rail entrance without electric battery cell, charge;
Switch step, power-supply management system be the current unlatching battery cell of cycle detection electric weight periodically, automatic disconnection after it is full of electricity, then open adjacent without electric battery cell, successively to have or not electric battery cell charge; When running into fail battery monomer or vacancy, skip this battery cell or room, open the next one without electric battery cell, continue above-mentioned charge step.
Claims (8)
1. an electric motor car formation formula battery pack comprises 2 above battery cells, it is characterized in that, also comprises for the guide rail of arranging battery cell; Power-supply management system; The battery capacity indication lamp; Described battery cell is arranged in order on described guide rail and is placed; Battery cell can be along the unidirectional slip of guide rail, and can only push from the entrance of guide rail one end, takes out from the outlet of the other end.
2. battery pack according to claim 1 is characterized in that, battery cell is arranged on guide rail in order, is followed successively by full electric battery cell, non-full electric battery cell and without electric battery cell by guide rail entrance to Way out.
3. battery pack according to claim 1 and 2 is characterized in that, the user can change the number of on-vehicle battery monomer.
4. according to claim 1 and 2 or 3 described battery pack, it is characterized in that described power-supply management system is controlled described battery cell, make it by the permanent order charge or discharge, and only open one of them battery cell at every turn; Power-supply management system can cycle detection and is obtained each battery cell state, be respectively full electricity, non-full electricity or electroless state, and the color of regulating in real time the battery capacity indication lamp of corresponding battery cell, the full electricity of green indication, the non-full electricity of yellow indication, red indication is without electricity, and lamp does not work and indicates vacancy or battery cell to break down.
5. an electric motor car is characterized in that, has right and wants each described battery pack in 1 to 4.
6. a right to use requires the method for electrically that changes of 1 to 4 each described battery of electric vehicle group, it is characterized in that, takes out without electric battery cell from the guide rail outlet, and pushes from the guide rail entrance and to be full of electric full electric battery cell.
7. a right to use requires the charging method of 1 to 4 each described battery of electric vehicle group, and the method may further comprise the steps:
Setting up procedure, power-supply management system detects and obtains each battery cell state, is respectively full electricity, non-full electricity or electroless state; At first open non-full battery cell, the output electric energy if do not detect non-full monomer, is just opened the full electric battery cell of the most close guide rail outlet, the output electric energy;
Switch step, power-supply management system be the current unlatching battery cell of cycle detection electric weight periodically, and cycle period was lower than for 1 second, when finding that this battery cell electric weight reaches electroless state, open first adjacent full electric battery cell, disconnect again current battery cell, uninterruptedly export electric energy; When running into fail battery monomer or vacancy, skip this battery cell or room, open next battery cell, continue above-mentioned discharge step.
8. a right to use requires the charging method of 1 to 4 each described battery of electric vehicle group, and the method may further comprise the steps:
Setting up procedure, power-supply management system detects and obtains each battery cell state, is respectively full electricity, non-full electricity or electroless state; At first open non-full battery cell, charge, if do not detect non-full monomer, just open the most close guide rail entrance without electric battery cell, charge;
Switch step, power-supply management system be the current unlatching battery cell of cycle detection electric weight periodically, first it is disconnected when finding that this battery cell is full of electricity, then opens adjacent without electric battery cell, successively to electric battery cell charging of have or not; When running into fail battery monomer or vacancy, skip this battery cell or room, open next battery cell, continue above-mentioned charge step.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210577017.4A CN103022548B (en) | 2012-05-06 | 2012-12-27 | Queue type battery pack of electric vehicle |
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| CN201220198082 | 2012-05-06 | ||
| CN201220198082.1 | 2012-05-06 | ||
| CN201210577017.4A CN103022548B (en) | 2012-05-06 | 2012-12-27 | Queue type battery pack of electric vehicle |
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| CN103022548A true CN103022548A (en) | 2013-04-03 |
| CN103022548B CN103022548B (en) | 2014-11-05 |
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| CN2012207318435U Expired - Lifetime CN203046925U (en) | 2012-05-06 | 2012-12-27 | Queue type battery pack of electrombile and electrombile provided with queue type battery pack |
| CN201210577017.4A Active CN103022548B (en) | 2012-05-06 | 2012-12-27 | Queue type battery pack of electric vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610215A (en) * | 2015-12-01 | 2016-05-25 | 深圳市大疆创新科技有限公司 | Power supply device, power supply control method and mobile device using power supply device |
| CN110303942A (en) * | 2018-03-13 | 2019-10-08 | 南京酷朗电子有限公司 | Batteries of electric automobile system for managing in groups and operation method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203046925U (en) * | 2012-05-06 | 2013-07-10 | 王雪飞 | Queue type battery pack of electrombile and electrombile provided with queue type battery pack |
| CN114734878A (en) * | 2022-04-29 | 2022-07-12 | 中国第一汽车股份有限公司 | Control method and control device of charge and discharge indication system and electronic device |
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| CN110303942A (en) * | 2018-03-13 | 2019-10-08 | 南京酷朗电子有限公司 | Batteries of electric automobile system for managing in groups and operation method |
| CN110303942B (en) * | 2018-03-13 | 2021-11-16 | 南京酷朗电子有限公司 | Electric vehicle battery grouping management system and operation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN203046925U (en) | 2013-07-10 |
| CN103022548B (en) | 2014-11-05 |
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