CN201966631U - Battery dynamic balance management system - Google Patents
Battery dynamic balance management system Download PDFInfo
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- CN201966631U CN201966631U CN2010206066334U CN201020606633U CN201966631U CN 201966631 U CN201966631 U CN 201966631U CN 2010206066334 U CN2010206066334 U CN 2010206066334U CN 201020606633 U CN201020606633 U CN 201020606633U CN 201966631 U CN201966631 U CN 201966631U
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- 238000005259 measurement Methods 0.000 claims abstract description 21
- 239000000178 monomer Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 238000009529 body temperature measurement Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 2
- 239000013589 supplement Substances 0.000 claims 1
- 238000007726 management method Methods 0.000 abstract description 89
- 238000000034 method Methods 0.000 abstract description 20
- 230000008901 benefit Effects 0.000 abstract description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052744 lithium Inorganic materials 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000008569 process Effects 0.000 description 16
- 230000005611 electricity Effects 0.000 description 12
- 230000036541 health Effects 0.000 description 11
- 230000001681 protective effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 230000003862 health status Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Abstract
The utility model discloses a battery dynamic balance management system, which comprises a CAN (Controller Area Network) bus, a BMU (Battery Management Unit), a BCU (Battery Control Unit), and a current measurement module, wherein the BCU is parallelly connected with a battery pack to be measured, and is connected with the BMU via the CAN bus; and the current measurement module is serially connected in a high-voltage bus circuit of the power battery pack, and is connected with the BMU via the CAN bus, so as to complete the measurement to charge/discharge current of the battery pack and supply current information for the BMU. In the system, the battery pack is balanced according to the state of a vehicle: the charge balance management is performed when the vehicle is in a running state; and the charge and the discharge balance managements can be simultaneously performed when the vehicle is charged. The battery dynamic balance management system provided by the utility model has the advantages that the dynamic charge/discharge battery balance method is adopted to perform dynamic balance to the vehicle in the running state, so that the battery energy output level can be greatly improved, the vehicle-mounted energy can be effectively used, the service life of a lithium battery is prolonged, and the safety of the lithium battery is improved.
Description
Technical field
The utility model belongs to technical field of automotive electronics, relates to a kind of battery cell dynamic equilibrium management system; Be specially adapted to the battery set management of pure electronic passenger car.
Background technology
Automobile-used lithium battery group is made up of a plurality of battery cell connection in series-parallel, battery producer before dispatching from the factory activates processing, the line precharge of going forward side by side, battery pack performance difference when the initial stage of use is less, but battery pack process high-pressure series is through after repeatedly discharging and recharging, imbalance may appear between battery pack, have influence on the supply of electric powered motor, long-term imbalance will have influence on the operating efficiency and the useful life of battery pack, if cause having to change whole battery group and cause battery pack to scrap owing to certain battery can't continue charging prematurely, loss is quite high so.Safe in utilization, functional for guaranteeing battery, prolong battery useful life, must carry out rational and effective management and control to battery.Require the battery for electric automobile group to manage cell, also want to carry out automatic equalization for lithium-ions battery simultaneously.
Known present existing solution adopts the battery pack passive equilibrium mostly, each Battery pack is monitored and according to the information of voltage of battery pack battery is carried out the passive equilibrium management by microprocessor.When the state of charge of certain battery surpasses its contiguous battery, this method will be laid a discharge resistor at its two ends.Passive equilibrium does not increase the operating range after the once charging, and reason is this method consumed power, rather than redistributes power.
Existing to the unbalanced charging practice of multi-string battery be, comprise two chips, chip comprises that voltage detecting analyzes comparison circuit, two parts of balance switching circuit, and another chip is power management and protection chip.Whether in allowed limits voltage detecting analyzes voltage that comparison circuit is used to detect each battery unit in the battery pack; when the some battery cell voltages in the battery pack are uneven; as long as when wherein having a battery unit to reach the charging standard; balance switching circuit is under the control of power management and protection chip; other the high battery unit of voltage in the battery pack is discharged earlier; make battery keep balance; the voltage that reaches whole battery group charges to battery pack by mending electric battery pack all in the predeterminated voltage scope time again.But battery pack all is dynamic when charging, so this way has some problems: the one, can only when need charging, battery pack could use this equilibrium function, can not when discharge, adopt equilibrium function, can not increase the distance travelled of vehicle; The 2nd, battery pack can only be come the balancing battery group by discharge, owing in discharge process, produce a large amount of heats, so just limited that discharging current can not be excessive in the balancing circuitry, otherwise the heat that produces can burn the chip that includes voltage detecting circuit and balance switching circuit etc.; The 3rd, owing to adopt discharge earlier to press high battery cell voltage, control strategy is single, if only there is a Battery pack low excessively, can only be to other all battery pack balance of discharging, and balance time is quite very long.Therefore, the balancing circuitry present for high capacity cell can not meet the demands, as satisfying the balance requirement of jumbo battery, and the height that cost of manufacture will be suitable then.
Summary of the invention
The utility model discloses a kind of battery cell dynamic equilibrium management system, to solve the distance travelled that can not increase vehicle in the prior art; Discharging current can not be excessive in the balancing circuitry, and the heat of generation has and burns the chip risk that includes voltage detecting circuit and balance switching circuit; Problems such as the battery equilibrium time is quite very long.
The utility model comprises in several battery pack, each battery pack having temperature sensor; It is characterized in that comprising CAN bus, battery management unit BMU, battery cell control unit BCU, current measurement module; Battery cell control unit BCU is in parallel with measured battery pack respectively, and links to each other with battery management unit BMU by the CAN bus; Current measurement module is connected in series in the power battery pack high voltage bus circuit, links to each other with battery management unit BMU by the CAN bus, finishes the surveying work of battery set charge/discharge electric current, and BMU provides current information for battery management unit; According to vehicle-state, battery pack is carried out balance; When vehicle is running status, mend the electric equilibrium management, when vehicle is charged state, can mend electricity and discharge management of balance simultaneously.
Battery cell control unit BCU comprises micro-control unit MCU, battery intelligent management chip, charge/discharge control circuit, discharge resistance, battery pack is connected with charge/discharge control circuit, discharge resistance is connected between charge/discharge control circuit and the battery pack, and charge/discharge control circuit is connected with the battery intelligent management chip pin; The battery intelligent management chip receives voltage measurement signal and temperature measurement signal, and micro-control unit MCU by the discharge of charge/discharge control circuit control discharge resistance, realizes the battery pack passive equilibrium by battery intelligent management chip controls charge/discharge control circuit.
Battery cell control unit BCU also comprises the electric power circuit of benefit, mends electric control circuit; Mend electric control circuit and be connected between benefit power supply and the battery pack, mend electric control circuit and be connected with micro-control unit MCU pin; Micro-control unit MCU sends instruction to mending electric control circuit, and electric control circuit will be mended power supply and the corresponding battery group is communicated with by mending, and be that battery is mended electricity by mending power supply, realize the battery pack active balancing.
Battery cell control unit BCU process battery management unit BMU unified allocation of resources is carried out balance to single Battery pack, and balance mode divides mends electricity and the dual mode that discharges.When charging dual mode adopt simultaneously as required, and only adopt the active balancing mode during discharge, with conserve energy, the difference between the balancing battery monomer is improved the consistency of battery, improves battery charge ability and load capacity.
The utility model comprises protective circuit, temperature channel expanded circuit; Protective circuit is connected between battery pack and the battery intelligent management chip, forms tension measuring circuit by protective circuit, battery intelligent management chip, and tension measuring circuit is measured the voltage signal of battery pack; The temperature channel expanded circuit is connected between temperature sensor and the battery intelligent management chip, and by battery intelligent management chip, temperature channel expanded circuit, temperature sensor formation temperature testing circuit, temperature sensing circuit is measured the battery temperature signal of battery pack.
The battery intelligent management chip detects 4 to 12 batteries monomer voltages simultaneously, and the sampling time is less than 13ms, embedded 12-bit ADC module, and maximum tactful error is 0.25%.
Each electric elements is connected to form the communication network structure by the CAN bus; Each battery pack is composed in series by battery cell; Battery pack all exists with the safe voltage monomeric form when static; The CAN bus comprises battery management unit BMU node, battery cell control unit BCU node, current measurement module node; Battery cell control unit BCU passes to battery management unit BMU by the CAN bus with information such as cell voltage, temperature; Current measurement module is issued battery management unit BMU with the current information that measures by the CAN bus cycles.Battery management unit BMU is positioned at the upper strata and battery cell control unit BCU is positioned at lower floor, forms two-layer intelligent network up and down; Battery management unit BMU calculates battery pack state-of-charge SOC and judges.By current acquisition, replenishing of energy reached release add up accurately, and, calculate SOC through the MAP contrast, and provide reference index according to the cell voltage curve, the state-of-charge SOC of assessment battery cell carries out the battery system failure diagnosis; Battery management unit BMU is to the management of battery cell management of balance and batteries charging, avoids occurring overdischarge, overcharges, the serious energy imbalance of voltage between the overheated and cell, and unbalanced battery is mended electricity or discharge.
Micro-control unit MCU passes to battery management unit BMU with the voltage, the temperature data that collect by the CAN bus.Battery management unit BMU is the battery set management core, that is responsible for whole battery group discharges and recharges monitoring, Charge Management, all information via battery management unit BMU handle, historic state according to battery, provide corresponding data in advance, battery management unit BMU issuing command carries out energy balance to each Battery pack, and the information interaction of responsible and entire car controller.
The utility model also comprises automobile-used diagnostic equipment, automobile-used diagnostic equipment connects by the CAN bus with battery management unit BMU, battery management unit BMU comprehensively determines parameters such as state-of-charge value SOC, cell health state value SOH, battery management unit BMU connects with onboard instruments CAN bus, voltage, electric current, temperature, state-of-charge value SOC, the cell health state value SOH of battery is passed to onboard instruments show; Automobile-used diagnostic equipment is judged cell health state value SOH, and operating states such as assessment battery cell health status SOH provide warning to overvoltage, under voltage, overcurrent, fault such as overheated; Give HC hard copy to permanent fault and battery user mode; After reporting to the police, electric weight can also set mileage by low speed driving.
The utility model control program flow process is as follows:
The first step: program begins, and enters System self-test.The self check mistake is to host computer newspaper fault, EP (end of program); Self check is correct, enters into system initialization.
Second step: wait for that the CAN received communication interrupts.Interruption is arranged, enter the Interrupt Process function, receive the operating state that host computer sends, electric current, data such as outage sign.Do not have and interrupt, wait for the Interrupt Process function.
The 3rd step: judge whether to satisfy the reading of data requirement.Do not satisfy condition, turn back to and wait for the Interrupt Process function; Satisfy condition, gather cell voltage, temperature data, and carry out respective handling.Judge the voltage collect, temperature whether in range of normal value, and corresponding marker bit is carried out set or zero clearing is handled.
The 4th step: carry out corresponding Balance Treatment according to the operating state that host computer sends.If car in charged state, then according to the SOC state, carries out discharge management and benefit fulgurite reason in the corresponding charging process; If car in running status, then according to the SOC state, carries out the benefit point management in the sport car process.Benefit electricity number of times to associated batteries carries out record simultaneously, sets up battery health degrees of data storehouse.
The 5th step: send voltage, the temperature data of its needed battery, all kinds of battery alarm signals and battery health degrees of data etc. to host computer.
The 6th step: the outage flag bit is judged.The outage flag bit is zero, turns back to for second step; The outage flag bit is 01, storage data, EP (end of program).
The utility model has the advantages that: adopt and dynamically mend discharge of electricity formula battery cell balance equalization methods, when vehicle operating, also dynamically carry out balance, improve energy content of battery output level to greatest extent, utilize the storage capacity and the cycle life of battery, effectively use vehicular energy.BMU provides corresponding data in advance according to the historic state of battery, and to guarantee between the monomer balance as much as possible, battery pack just can be replenished more energy like this, and the while also can discharge more energy, has improved the storage capacity and the cycle life of battery.The operable energy of battery pack is 85% of a nominal capacity after tested.Can avoid this battery pack overdischarge, overcharge, the voltage of overheated and each iron lithium phosphate battery of balance; Guarantee that battery performance is good, improve the useful life and the fail safe of lithium battery.
Description of drawings
Fig. 1 is the utility model grid topological diagram;
Fig. 2 is the utility model system architecture diagram;
Fig. 3 is the utility model discharge circuit structured flowchart;
Fig. 4 mends electric circuit structure block diagram for the utility model;
Fig. 5 is the utility model program flow diagram;
Among the figure: BMU battery management unit, BCU battery cell control unit, SOC state-of-charge value, SOH cell health state value.
Embodiment
Describe an embodiment of the present utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, the utility model comprises having temperature sensor, CAN bus, battery management unit BMU, battery cell control unit BCU, current measurement module, automobile-used diagnostic equipment, protective circuit, temperature channel expanded circuit in several battery pack, each battery pack; Protective circuit is connected between battery pack and the battery intelligent management chip, forms tension measuring circuit by protective circuit, battery intelligent management chip, and tension measuring circuit is measured the voltage signal of battery pack; The temperature channel expanded circuit is connected between temperature sensor and the battery intelligent management chip, and by battery intelligent management chip, temperature channel expanded circuit, temperature sensor formation temperature testing circuit, temperature sensing circuit is measured the battery temperature signal of battery pack; Battery cell control unit BCU is in parallel with measured battery pack respectively, and links to each other with battery management unit BMU by the CAN bus; Current measurement module is connected in series in the power battery pack high voltage bus circuit, links to each other with battery management unit BMU by the CAN bus, finishes the surveying work of battery set charge/discharge electric current, and BMU provides current information for battery management unit; According to vehicle-state, battery pack is carried out balance; When vehicle is running status, mend the electric equilibrium management, when vehicle is charged state, can mend electricity and discharge management of balance simultaneously.
Automobile-used diagnostic equipment connects by the CAN bus with battery management unit BMU, battery management unit BMU comprehensively determines parameters such as state-of-charge value SOC, cell health state value SOH, battery management unit BMU connects with onboard instruments CAN bus, voltage, electric current, temperature, state-of-charge value SOC, the cell health state value SOH of battery is passed to onboard instruments show; Automobile-used diagnostic equipment is judged cell health state value SOH, and operating states such as assessment battery cell health status SOH provide warning to overvoltage, under voltage, overcurrent, fault such as overheated; Give HC hard copy to permanent fault and battery user mode; After reporting to the police, electric weight can also set mileage by low speed driving.
As shown in Figure 3, battery cell control unit BCU comprises micro-control unit MCU, battery intelligent management chip, charge/discharge control circuit, discharge resistance R1, battery pack is connected with charge/discharge control circuit, discharge resistance R1 is connected between charge/discharge control circuit and the battery pack, and charge/discharge control circuit is connected with the battery intelligent management chip pin; The battery intelligent management chip receives voltage measurement signal and temperature measurement signal, and the battery intelligent management chip detects 4 to 12 batteries monomer voltages simultaneously, and the sampling time is less than 13ms, embedded 12-bit ADC module, and maximum tactful error is 0.25%.When battery cell control unit BCU need carry out discharge operation to certain batteries, micro-control unit MCU by battery cell control unit BCU sends instruction to the battery intelligent management chip, by battery intelligent management chip controls charge/discharge control circuit battery unit is connected with discharge resistance, the control discharge resistance is the corresponding battery cell discharge.Element field effect transistor Q1, resistance R 1 are responsible for providing passive battery equilibrium; Pin P (N) output of battery intelligent management chip is used to control these elements; Resistance R 3 and capacitor C 1 have constituted a frequency overlapped-resistable filter that is used for the battery intelligent management chip; Diode D1 and diode D2 and resistor R 4 are used to provide protection; Diode D1 is 6.2V, the 500mW Zener diode of a standard, and it is excessive to prevent to be input on the battery intelligent management chip pin voltage.Diode D2 is responsible for protecting the grid of balance field effect transistor Q1.Resistor R 4 is used for protection pin P (N) output under the situation that diode D2 is forced to connect.Battery cell control unit BCU finishes observing and controlling work, gathers cell voltage, electric current and the temperature data of cell in the battery pack, the state of each Battery pack is monitored and record, and be that 12 passages are with interior battery cell passive equilibrium management.
As shown in Figure 4, battery cell control unit BCU also comprises the electric power circuit of benefit, mends electric control circuit; Mend electric control circuit and be connected between benefit power supply and the battery pack, mend electric control circuit and be connected with micro-control unit MCU pin; Battery cell control unit BCU finishes observing and controlling work, gathers cell voltage, electric current and the temperature data of cell in the battery pack, and the state of each Battery pack is monitored and record; When battery cell control unit BCU need mend the electricity operation to certain batteries, micro-control unit MCU respective pin by battery cell control unit BCU is sent instruction, mend the S[N in the electric control circuit] adhesive, mend electric control circuit and will mend power supply and the connection of corresponding battery group, by mending power supply is that battery is mended electricity, realizes that 12 passages are with interior battery pack active balancing.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, battery cell control unit BCU process battery management unit BMU unified allocation of resources is carried out balance to single Battery pack, and balance mode divides mends electricity and the dual mode that discharges.When charging dual mode adopt simultaneously as required, and only adopt the active balancing mode during discharge, with conserve energy, the difference between the balancing battery monomer is improved the consistency of battery, improves battery charge ability and load capacity.
Each electric elements is connected to form the communication network structure by the CAN bus; Each battery pack is composed in series by battery cell; Battery pack all exists with the safe voltage monomeric form when static; The CAN bus comprises battery management unit BMU node, battery cell control unit BCU node, current measurement module node; Battery cell control unit BCU passes to battery management unit BMU by the CAN bus with information such as cell voltage, temperature; Current measurement module is issued battery management unit BMU with the current information that measures by the CAN bus cycles.Battery management unit BMU is positioned at the upper strata and battery cell control unit BCU is positioned at lower floor, forms two-layer intelligent network up and down; Battery management unit BMU calculates battery pack state-of-charge SOC and judges.By current acquisition, replenishing of energy reached release add up accurately, and, calculate SOC through the MAP contrast, and provide reference index according to the cell voltage curve, the state-of-charge SOC of assessment battery cell carries out the battery system failure diagnosis; Battery management unit BMU is to the management of battery cell management of balance and batteries charging, avoids occurring overdischarge, overcharges, the serious energy imbalance of voltage between the overheated and cell, and unbalanced battery is mended electricity or discharge.
Micro-control unit MCU passes to battery management unit BMU with the voltage, the temperature data that collect by the CAN bus.Battery management unit BMU is the battery set management core, that is responsible for whole battery group discharges and recharges monitoring, Charge Management, all information via battery management unit BMU handle, historic state according to battery, provide corresponding data in advance, battery management unit BMU issuing command carries out energy balance to each Battery pack, and the information interaction of responsible and entire car controller.
As shown in Figure 5: the utility model control program flow process is as follows:
The first step: program begins, and enters System self-test.The self check mistake is to host computer newspaper fault, EP (end of program); Self check is correct, enters into system initialization.
Second step: wait for that the CAN received communication interrupts.Interruption is arranged, enter the Interrupt Process function, receive the operating state that host computer sends, electric current, data such as outage sign.Do not have and interrupt, wait for the Interrupt Process function.
The 3rd step: judge whether to satisfy the reading of data requirement.Do not satisfy condition, turn back to and wait for the Interrupt Process function; Satisfy condition, gather cell voltage, temperature data, and carry out respective handling.Judge the voltage collect, temperature whether in range of normal value, and corresponding marker bit is carried out set or zero clearing is handled.
The 4th step: carry out corresponding Balance Treatment according to the operating state that host computer sends.If car in charged state, then according to the SOC state, carries out discharge management and benefit fulgurite reason in the corresponding charging process; If car in running status, then according to the SOC state, carries out the benefit point management in the sport car process.Benefit electricity number of times to associated batteries carries out record simultaneously, sets up battery health degrees of data storehouse.
The 5th step: send voltage, the temperature data of its needed battery, all kinds of battery alarm signals and battery health degrees of data etc. to host computer.
The 6th step: the outage flag bit is judged.The outage flag bit is zero, turns back to for second step; The outage flag bit is 01, storage data, EP (end of program).
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| CN2010206066334U CN201966631U (en) | 2010-11-15 | 2010-11-15 | Battery dynamic balance management system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427256A (en) * | 2011-10-28 | 2012-04-25 | 山东大学 | Electric Vehicle Lithium Battery Pack Management System |
| CN102496991A (en) * | 2011-12-28 | 2012-06-13 | 南京双登科技发展研究院有限公司 | Backup lithium ion battery pack management method and management system thereof |
| CN102545758A (en) * | 2012-01-16 | 2012-07-04 | 北京启明精华新技术有限公司 | Automobile power controller |
| CN103019234A (en) * | 2012-12-26 | 2013-04-03 | 中国汽车技术研究中心 | Battery management and acquisition subsystem of new energy vehicle and method for controlling battery management and acquisition subsystem |
| CN103166272A (en) * | 2011-12-16 | 2013-06-19 | 财团法人金属工业研究发展中心 | High-pressure-difference type capacitance active balancing device and method thereof |
| CN103208828A (en) * | 2012-01-17 | 2013-07-17 | 中国科学院广州能源研究所 | Management system for serial connected battery packs |
| CN103227494A (en) * | 2013-05-17 | 2013-07-31 | 北京华电天仁电力控制技术有限公司 | Energy storage battery management system |
| CN105068014A (en) * | 2015-08-28 | 2015-11-18 | 江苏大学 | Parallel single cell performance monitoring system and monitoring method |
| CN105356560A (en) * | 2015-12-11 | 2016-02-24 | 上海中兴派能能源科技有限公司 | Two-stage distributed battery pack active equalization control system and method thereof |
| CN105449739A (en) * | 2015-09-30 | 2016-03-30 | 上海凌翼动力科技有限公司 | Single-battery-based on-line estimation method for SOC of series battery pack |
| CN109263514A (en) * | 2018-09-11 | 2019-01-25 | 众声物联（天津）科技有限公司 | The device and method of traditional power vehicle upgrading Internet of Things power car |
| CN110611300A (en) * | 2019-09-30 | 2019-12-24 | 雅迪科技集团有限公司 | High-voltage short circuit turn-off protection circuit for electric vehicle bus communication |
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2010
- 2010-11-15 CN CN2010206066334U patent/CN201966631U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427256A (en) * | 2011-10-28 | 2012-04-25 | 山东大学 | Electric Vehicle Lithium Battery Pack Management System |
| CN102427256B (en) * | 2011-10-28 | 2013-10-23 | 山东大学 | Electric Vehicle Lithium Battery Pack Management System |
| CN103166272A (en) * | 2011-12-16 | 2013-06-19 | 财团法人金属工业研究发展中心 | High-pressure-difference type capacitance active balancing device and method thereof |
| CN102496991B (en) * | 2011-12-28 | 2014-04-09 | 南京双登科技发展研究院有限公司 | Backup lithium ion battery pack management method and management system thereof |
| CN102496991A (en) * | 2011-12-28 | 2012-06-13 | 南京双登科技发展研究院有限公司 | Backup lithium ion battery pack management method and management system thereof |
| CN102545758A (en) * | 2012-01-16 | 2012-07-04 | 北京启明精华新技术有限公司 | Automobile power controller |
| CN103208828B (en) * | 2012-01-17 | 2015-07-29 | 中国科学院广州能源研究所 | A kind of series-connected cell group management system |
| CN103208828A (en) * | 2012-01-17 | 2013-07-17 | 中国科学院广州能源研究所 | Management system for serial connected battery packs |
| CN103019234A (en) * | 2012-12-26 | 2013-04-03 | 中国汽车技术研究中心 | Battery management and acquisition subsystem of new energy vehicle and method for controlling battery management and acquisition subsystem |
| CN103227494A (en) * | 2013-05-17 | 2013-07-31 | 北京华电天仁电力控制技术有限公司 | Energy storage battery management system |
| CN103227494B (en) * | 2013-05-17 | 2015-05-13 | 北京华电天仁电力控制技术有限公司 | Energy storage battery management system |
| CN105068014A (en) * | 2015-08-28 | 2015-11-18 | 江苏大学 | Parallel single cell performance monitoring system and monitoring method |
| CN105449739A (en) * | 2015-09-30 | 2016-03-30 | 上海凌翼动力科技有限公司 | Single-battery-based on-line estimation method for SOC of series battery pack |
| CN105449739B (en) * | 2015-09-30 | 2019-08-23 | 上海凌翼动力科技有限公司 | State of charge of series-connected batteries SOC On-line Estimation method based on single battery |
| CN105356560A (en) * | 2015-12-11 | 2016-02-24 | 上海中兴派能能源科技有限公司 | Two-stage distributed battery pack active equalization control system and method thereof |
| CN109263514A (en) * | 2018-09-11 | 2019-01-25 | 众声物联（天津）科技有限公司 | The device and method of traditional power vehicle upgrading Internet of Things power car |
| CN110611300A (en) * | 2019-09-30 | 2019-12-24 | 雅迪科技集团有限公司 | High-voltage short circuit turn-off protection circuit for electric vehicle bus communication |
| CN110611300B (en) * | 2019-09-30 | 2021-08-03 | 雅迪科技集团有限公司 | High-voltage short circuit turn-off protection circuit for electric vehicle bus communication |
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Address after: 130033 No. 777 Dongfeng South Street, automobile economic and Technological Development Zone, Jilin, Changchun Patentee after: Fawer Automotive Parts Limited Company Address before: 130033 No. 245, Shenzhen street, Changchun Economic Development Zone, Jilin, China Patentee before: Fawer Automotive Parts Limited Company |
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