CN201289886Y - Power battery management system for pure electric automobile - Google Patents
Power battery management system for pure electric automobile Download PDFInfo
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- CN201289886Y CN201289886Y CNU2008202159544U CN200820215954U CN201289886Y CN 201289886 Y CN201289886 Y CN 201289886Y CN U2008202159544 U CNU2008202159544 U CN U2008202159544U CN 200820215954 U CN200820215954 U CN 200820215954U CN 201289886 Y CN201289886 Y CN 201289886Y
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- 238000003745 diagnosis Methods 0.000 abstract description 4
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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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Abstract
The utility model discloses a power battery management system for a pure electric vehicle, which comprises a plurality of data acquisition units of mono-battery box, a data acquisition unit of a general battery box, a master control unit and an outer alarm device. The power battery management system provided by the utility model can realize online monitoring and fault diagnosis of an electric battery, ensure the work stability of the electric battery, and prolong the service life of the electric battery.
Description
Technical field
The utility model relates to a kind of power battery management system, relates in particular to a kind of pure electric automobile power battery management system.
Background technology
Pure electric sedan has progressively been come into people's life as the vehicles with energy-saving and environmental protection advantage that adopt novel energy to drive.Electrokinetic cell is as the power source of pure electric sedan, its operating state stable most important.Electrokinetic cell is a key factor that influences the electric automobile performance, for guaranteeing that battery performance is good, prolong electrokinetic cell useful life, special management system must be set its operating state is monitored and rational and effective management and control, to cooperate whole-control system to realize the safety of car load and to optimize operation.
The utility model content
The technical problems to be solved in the utility model provides a kind of pure electric automobile power battery management system, described power battery management system can be realized electrokinetic cell on-line monitoring and failure diagnosis, can guarantee the job stability of electrokinetic cell, prolong electrokinetic cell useful life.
The utility model comprises several cell case data acquisition units, an overall cell case data acquisition unit, a main control unit and an external alert equipment; Each cell case data acquisition unit is used for gathering the voltage of the every joint cell of corresponding battery case and the temperature of corresponding battery case, and with the voltage of every joint cell in the corresponding battery case and the numbering of this battery, the temperature of corresponding battery case and the battery case numbering of this battery case, input main control unit; Overall cell case data acquisition unit is used for gathering the mutual series connected battery total voltage of all batteries and the battery charging and discharging total current of all battery cases, and imports above-mentioned main control unit with the data that collect and according to battery charge state (SOC) data that battery total voltage, battery charging and discharging total current and the time that discharges and recharges obtain; Main control unit compares judgement with the voltage of above-mentioned every joint cell, temperature, battery total voltage, battery charging and discharging total current and above-mentioned four predefined higher limits of parameter and the lower limit of battery case, when wherein one or more parameter actual values during greater than predefined corresponding higher limit or less than predefined corresponding lower limit, main control unit is to outside warning device output alarm signal instruction external alert equipment alarm; Main control unit in addition outputs to numbering, battery total voltage, battery charging and discharging total current, battery charge state (SOC) data of the temperature of the numbering of the voltage of above-mentioned every joint cell and this battery, battery case and this battery case on the Displaying Meter of pure electric automobile and shows.
As improvement of the present utility model, between each cell case data acquisition unit and the main control unit, between overall cell case data acquisition unit and the main control unit by inner CAN bus communication; Pass through outside CAN bus communication between the Displaying Meter of main control unit and pure electric automobile.
Improve as of the present utility model, each cell case data acquisition unit comprises monomer battery voltage acquisition module, temperature collect module, CPU processing module and CAN bus communication module again; Described monomer battery voltage acquisition module is used for gathering the voltage of every battery of corresponding battery case, and input CPU processing module is handled after analog-to-digital conversion; Temperature collect module is used to gather the temperature of corresponding battery case, and input CPU processing module is handled after analog-to-digital conversion; The temperature of the battery case after the voltage of the every joint cell after the CPU processing module will be handled and the numbering of this battery, the processing and the numbering of this battery case are by CAN bus communication module input main control unit.
As further improvement of the utility model, overall cell case data acquisition unit comprises total voltage total current acquisition module, CPU processing module and CAN bus communication module; Described total voltage total current acquisition module is used for gathering battery total voltage and the battery charging and discharging total current after all batteries series connection of all battery cases, and after analog-to-digital conversion, import the processing of CPU processing module, described CPU processing module can and be passed through CAN bus communication module according to battery charge state (SOC) data of battery total voltage, battery charging and discharging total current and the processing back acquisition of battery charging and discharging time and import main control unit battery total voltage and battery charging and discharging total current.
As further improvement of the utility model, main control unit comprises main control unit CPU processing module, data memory module, temperature alarming module, fault alarm module, a CAN bus communication module and the 2nd CAN bus communication module; A described CAN bus communication module is used to receive the input data of cell case data acquisition unit and overall cell case data acquisition unit, and transfer to main control unit CPU processing module and handle, the data input data memory module storage after the processing; When main control unit CPU processing module is carried out data processing, the higher limit and the lower limit of the battery total voltage of reading pre-set or battery charging and discharging total current or monomer battery voltage or battery case temperature from data memory module, compare judgement with the data of input: when wherein one or more data of battery total voltage, battery charging and discharging total current, monomer battery voltage during greater than predefined higher limit or less than predefined lower limit, by the fault alarm module to outside warning device output alarm signal instruction external alert equipment alarm; When battery case temperature during greater than predefined higher limit or less than predefined lower limit, by the temperature alarming module to outside warning device output alarm signal instruction external alert equipment alarm; Main control unit CPU processing module can output to numbering, battery total voltage, battery charging and discharging total current, battery charge state (SOC) data of the temperature of the numbering of the voltage of above-mentioned every joint cell and this battery, battery case and this battery case on the Displaying Meter of pure electric automobile by the 2nd CAN bus communication module and show.
As further improvement of the utility model, main control unit also comprises the RS232 serial communication modular, connects a PC on the RS232 serial communication modular; By means of the RS232 serial communication modular, main control unit CPU processing module can communicate with PC, and voltage and the numbering of this battery, the temperature of battery case and numbering, battery total voltage, battery charging and discharging total current and battery charge state (SOC) data of this battery case of every joint cell are shown on PC; Can set the higher limit and the lower limit of battery total voltage, battery charging and discharging total current, monomer battery voltage and battery case temperature by PC, and be stored in the data memory module via main control unit CPU processing module.
Power battery management system of the present utility model passes through the state information of battery in data collecting module collected battery case and the battery case, and shows relevant information by main control unit on the Displaying Meter of pure electric vehicle.In addition, main control unit can carry out failure diagnosis to battery or battery case, reports to the police to the driver by external alert equipment under situation about breaking down, and the processing so that the driver in time takes appropriate measures prevents that the battery in battery case and the battery case from damaging.Thus, realized power battery pack is carried out on-line monitoring and failure diagnosis, guaranteed the job stability of electrokinetic cell, prolonged the useful life of electrokinetic cell.
Can guarantee the transmission stability of data by the CAN bus communication, eliminate because image data line and communication electric wire large tracts of land are distributed in caused potential safety hazard and electromagnetic interference in the high voltage network of battery pack.And can reduce a large amount of signal routings, improved reliability of data transmission, stability in the actual condition of car load complexity.
Cell case data acquisition unit, overall cell case data acquisition unit, main control unit all adopt modular construction, standard interface, and installation, maintenance is convenient.
Description of drawings
Fig. 1 is a kind of theory diagram of the present utility model.
Embodiment
As shown in Figure 1, comprise several cell case data acquisition units 1, overall cell case data acquisition unit 2, main control unit 3, external alert equipment 4 in the present embodiment.
Described each cell case data acquisition unit 1 comprises monomer battery voltage acquisition module 1-1, temperature collect module 1-2, CPU processing module 1-3 and CAN bus communication module 1-4.
Overall cell case data acquisition unit 2 comprises total voltage total current acquisition module 2-1, CPU processing module 2-2 and CAN bus communication module 2-3.
Main control unit 3 comprises main control unit CPU processing module 3-1, data memory module 3-2, temperature alarming module 3-3, fault alarm module 3-4, RS232 serial communication modular 3-5, a CAN bus communication module 3-6 and the 2nd CAN bus communication module 3-7.
Described each cell case data acquisition unit 1 is corresponding to a battery case 5.Monomer battery voltage acquisition module 1-1 in each cell case data acquisition unit 1 is used for gathering the voltage of corresponding battery case 5 every batteries, and input CPU processing module 1-3 handles after analog-to-digital conversion.Temperature collect module 1-2 in each cell case data acquisition unit 1 is used to gather the temperature of corresponding battery case 5, and the data input CPU processing module 1-3 that collects is handled.The temperature of the battery case after the voltage of the every joint cell after above-mentioned CPU processing module 1-3 will handle and the numbering of this battery, the processing and the numbering of this battery case are passed through CAN bus communication module 1-4, and are input in the main control unit 3 by means of inner CAN bus 6.
Total voltage total current acquisition module 2-1 in the overall cell case data acquisition unit 2 is used for gathering battery total voltage and the battery charging and discharging total current after all batteries of all batteries are connected, and input CPU processing module 2-2 handles after analog-to-digital conversion.Described CPU processing module 2-2 handles battery charge state (SOC) data that the back obtains by CAN bus communication module 2-3 with battery total voltage and battery charging and discharging total current and according to battery total voltage, battery charging and discharging total current and battery charging and discharging time, and is input in the main control unit 3 by means of inner CAN bus 6.
CAN bus communication module 3-6 in the main control unit 3 can receive the input data of cell case data acquisition unit 1 and overall cell case data acquisition unit 2, and transfer to main control unit CPU processing module and handle 3-1 and handle the data input data memory module 3-2 storage after the processing.When above-mentioned main control unit CPU processing module 3-1 carries out data processing, the battery total voltage of reading pre-set from data memory module 3-2, or battery charging and discharging total current, or monomer battery voltage, or the higher limit of battery case temperature and lower limit, compare judgement with the data of input: when the battery total voltage, the battery charging and discharging total current, wherein one or more actual values of monomer battery voltage are reported to the police to output peripheral equipment output alarm signal instruction external alert equipment 4 by fault alarm module 3-4 during greater than predefined higher limit or less than predefined lower limit; When battery case temperature during, report to the police to outside warning device 4 output alarm signals instruction external alert equipment 4 by temperature alarming module 3-3 greater than predefined higher limit or less than predefined lower limit.
By means of RS232 serial communication modular 3-5, main control unit CPU processing module 3-1 can communicate with PC 7, the numbering of numbering, battery case temperature and this battery case of battery charge state (SOC) data, battery total voltage, battery charging and discharging total current, every joint monomer battery voltage and this battery is outputed on the PC 7 show; Can set the higher limit and the lower limit of battery total voltage, battery charging and discharging total current, monomer battery voltage and four parameters of battery case temperature by PC 7, and be stored among the data memory module 3-2 via main control unit CPU processing module 3-1.
Main control unit CPU processing module 3-1 can by the 2nd CAN communication mould 3-7 piece and outside CAN bus 8 will above-mentioned every joint cell voltage and numbering, battery total voltage, battery charging and discharging total current, battery charge state (SOC) data of the temperature of the numbering of this battery, battery case and this battery case output to pure electric automobile Displaying Meter 9 on demonstration.
Claims (6)
1, a kind of pure electric automobile power battery management system is characterized in that: comprise several cell case data acquisition units, an overall cell case data acquisition unit, a main control unit and an external alert equipment; Each cell case data acquisition unit is used for gathering the voltage of the every joint cell of corresponding battery case and the temperature of corresponding battery case, and with the voltage of every joint cell in the corresponding battery case and the numbering of this battery, the temperature of corresponding battery case and the battery case numbering of this battery case, input main control unit; Overall cell case data acquisition unit is used for gathering the mutual series connected battery total voltage of all batteries and the battery charging and discharging total current of all battery cases, and imports above-mentioned main control unit with the data that collect and according to the battery charge state data that battery total voltage, battery charging and discharging total current and the time that discharges and recharges obtain; Main control unit compares judgement with the voltage of above-mentioned every joint cell, temperature, battery total voltage, battery charging and discharging total current and above-mentioned four predefined higher limits of parameter and the lower limit of battery case, when wherein one or more parameter actual values during greater than predefined corresponding higher limit or less than predefined corresponding lower limit, main control unit is to outside warning device output alarm signal instruction external alert equipment alarm; Main control unit in addition outputs to numbering, battery total voltage, battery charging and discharging total current, the battery charge state data of the temperature of the numbering of the voltage of above-mentioned every joint cell and this battery, battery case and this battery case on the Displaying Meter of pure electric automobile and shows.
2, a kind of pure electric automobile power battery management system according to claim 1 is characterized in that: between each cell case data acquisition unit and the main control unit, between overall cell case data acquisition unit and the main control unit by inner CAN bus communication; Pass through outside CAN bus communication between the Displaying Meter of main control unit and pure electric automobile.
3, a kind of pure electric automobile power battery management system according to claim 2 is characterized in that: each cell case data acquisition unit comprises monomer battery voltage acquisition module, temperature collect module, CPU processing module and CAN bus communication module; Described monomer battery voltage acquisition module is used for gathering the voltage of every battery of corresponding battery case, and input CPU processing module is handled after analog-to-digital conversion; Temperature collect module is used to gather the temperature of corresponding battery case, and input CPU processing module is handled after analog-to-digital conversion; The temperature of the battery case after the voltage of the every joint cell after the CPU processing module will be handled and the numbering of this battery, the processing and the numbering of this battery case are by CAN bus communication module input main control unit.
4, according to claim 2 or 3 described a kind of pure electric automobile power battery management systems, it is characterized in that: overall cell case data acquisition unit comprises total voltage total current acquisition module, CPU processing module and CAN bus communication module; Described total voltage total current acquisition module is used for gathering battery total voltage and the battery charging and discharging total current after all batteries series connection of all battery cases, and after analog-to-digital conversion, import the processing of CPU processing module, described CPU processing module can and be passed through CAN bus communication module according to the battery charge state data of battery total voltage, battery charging and discharging total current and the processing back acquisition of battery charging and discharging time and import main control unit battery total voltage and battery charging and discharging total current.
5, a kind of pure electric automobile power battery management system according to claim 4 is characterized in that: main control unit comprises main control unit CPU processing module, data memory module, temperature alarming module, fault alarm module, a CAN bus communication module and the 2nd CAN bus communication module; A described CAN bus communication module is used to receive the input data of cell case data acquisition unit and overall cell case data acquisition unit, and transfer to main control unit CPU processing module and handle, the data input data memory module storage after the processing; When main control unit CPU processing module is carried out data processing, the higher limit and the lower limit of the battery total voltage of reading pre-set or battery charging and discharging total current or monomer battery voltage or battery case temperature from data memory module, compare judgement with the data of input: when wherein one or more data of battery total voltage, battery charging and discharging total current, monomer battery voltage during greater than predefined higher limit or less than predefined lower limit, by the fault alarm module to outside warning device output alarm signal instruction external alert equipment alarm; When battery case temperature during greater than predefined higher limit or less than predefined lower limit, by the temperature alarming module to outside warning device output alarm signal instruction external alert equipment alarm; Main control unit CPU processing module can output to numbering, battery total voltage, battery charging and discharging total current, the battery charge state data of the temperature of the numbering of the voltage of above-mentioned every joint cell and this battery, battery case and this battery case on the Displaying Meter of pure electric automobile by the 2nd CAN bus communication module and show.
6, a kind of pure electric automobile power battery management system according to claim 5, it is characterized in that: main control unit also comprises the RS232 serial communication modular, connects a PC on the RS232 serial communication modular; By means of the RS232 serial communication modular, main control unit CPU processing module can communicate with PC, and voltage and the numbering of this battery, the temperature of battery case and numbering, battery total voltage, battery charging and discharging total current and the battery charge state data of this battery case of every joint cell are shown on PC; Can set the higher limit and the lower limit of battery total voltage, battery charging and discharging total current, monomer battery voltage and battery case temperature by PC, and be stored in the data memory module via main control unit CPU processing module.
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| CNU2008202159544U CN201289886Y (en) | 2008-11-26 | 2008-11-26 | Power battery management system for pure electric automobile |
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| CNU2008202159544U CN201289886Y (en) | 2008-11-26 | 2008-11-26 | Power battery management system for pure electric automobile |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867204A (en) * | 2010-05-18 | 2010-10-20 | 临清迅发电器有限责任公司 | Battery energy management device of electric vehicle and method |
| CN101916107A (en) * | 2010-08-11 | 2010-12-15 | 奇瑞汽车股份有限公司 | Control method and control device for fault diagnosis and treatment of electric automobile |
| CN102082312A (en) * | 2010-12-30 | 2011-06-01 | 中国科学院广州能源研究所 | High-capacity energy storage device |
| CN102211526A (en) * | 2011-04-18 | 2011-10-12 | 上海瑞华(集团)有限公司 | Safety protection device of pure electric vehicle |
| CN102230954A (en) * | 2011-06-22 | 2011-11-02 | 奇瑞汽车股份有限公司 | Apparatus and method for diagnosing lithium ion power cell bag fault |
| CN102288917A (en) * | 2011-05-09 | 2011-12-21 | 北京启明精华新技术有限公司 | Storage battery detector and vehicle-mounted network system for intelligent automobile |
| CN102854473A (en) * | 2012-09-24 | 2013-01-02 | 北京普莱德新能源电池科技有限公司 | Automatic test and diagnosis system and method of power batteries of electric automobile |
| CN102955131A (en) * | 2011-08-17 | 2013-03-06 | 北汽福田汽车股份有限公司 | Power battery monitoring system |
| CN103123370A (en) * | 2011-11-17 | 2013-05-29 | 北汽福田汽车股份有限公司 | Power battery voltage monitoring and alarming device |
| CN103311585A (en) * | 2012-03-15 | 2013-09-18 | 凹凸电子（武汉）有限公司 | Health battery management system and method |
| CN103427651A (en) * | 2013-07-25 | 2013-12-04 | 天津市松正电动汽车技术股份有限公司 | Vehicle power supply system and working method thereof |
| CN103419672A (en) * | 2013-07-23 | 2013-12-04 | 南通大学 | Plug-in hybrid electric vehicle lithium battery real-time monitoring method |
| CN103481782A (en) * | 2013-10-15 | 2014-01-01 | 东北石油大学 | Instrument/meter for hybrid power vehicle |
| CN103728568A (en) * | 2014-01-06 | 2014-04-16 | 东风汽车公司 | Method and device for detecting single lithium battery voltage |
| CN104852435A (en) * | 2015-05-22 | 2015-08-19 | 聊城大学 | Electric automobile serial lithium battery management system and a management method thereof |
| CN108172938A (en) * | 2017-12-25 | 2018-06-15 | 华南理工大学广州学院 | A kind of power battery thermal management |
| WO2021017330A1 (en) * | 2019-07-29 | 2021-02-04 | 深圳市吉毅创能源科技有限公司 | Smart battery pack monitoring method and system, smart battery pack, and storage medium |
| CN112793466A (en) * | 2021-03-24 | 2021-05-14 | 辽宁工业大学 | Control method of new energy automobile battery management system |
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2008
- 2008-11-26 CN CNU2008202159544U patent/CN201289886Y/en not_active Expired - Fee Related
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867204A (en) * | 2010-05-18 | 2010-10-20 | 临清迅发电器有限责任公司 | Battery energy management device of electric vehicle and method |
| CN101867204B (en) * | 2010-05-18 | 2013-04-10 | 山东迅力特种汽车有限公司 | Battery energy management device of electric vehicle and method |
| CN101916107A (en) * | 2010-08-11 | 2010-12-15 | 奇瑞汽车股份有限公司 | Control method and control device for fault diagnosis and treatment of electric automobile |
| CN101916107B (en) * | 2010-08-11 | 2011-12-14 | 奇瑞汽车股份有限公司 | Control method and control device for fault diagnosis and treatment of electric automobile |
| CN102082312A (en) * | 2010-12-30 | 2011-06-01 | 中国科学院广州能源研究所 | High-capacity energy storage device |
| CN102082312B (en) * | 2010-12-30 | 2013-05-22 | 中国科学院广州能源研究所 | High-capacity energy storage device |
| CN102211526A (en) * | 2011-04-18 | 2011-10-12 | 上海瑞华(集团)有限公司 | Safety protection device of pure electric vehicle |
| CN102288917A (en) * | 2011-05-09 | 2011-12-21 | 北京启明精华新技术有限公司 | Storage battery detector and vehicle-mounted network system for intelligent automobile |
| CN102288917B (en) * | 2011-05-09 | 2013-11-27 | 北京启明精华新技术有限公司 | Storage battery detector and vehicle-mounted network system for intelligent automobile |
| CN102230954A (en) * | 2011-06-22 | 2011-11-02 | 奇瑞汽车股份有限公司 | Apparatus and method for diagnosing lithium ion power cell bag fault |
| CN102955131A (en) * | 2011-08-17 | 2013-03-06 | 北汽福田汽车股份有限公司 | Power battery monitoring system |
| CN103123370A (en) * | 2011-11-17 | 2013-05-29 | 北汽福田汽车股份有限公司 | Power battery voltage monitoring and alarming device |
| CN103311585A (en) * | 2012-03-15 | 2013-09-18 | 凹凸电子（武汉）有限公司 | Health battery management system and method |
| CN103311585B (en) * | 2012-03-15 | 2015-08-12 | 凹凸电子（武汉）有限公司 | Health battery management system and method |
| CN102854473A (en) * | 2012-09-24 | 2013-01-02 | 北京普莱德新能源电池科技有限公司 | Automatic test and diagnosis system and method of power batteries of electric automobile |
| CN102854473B (en) * | 2012-09-24 | 2014-12-24 | 北京普莱德新能源电池科技有限公司 | Automatic test and diagnosis system and method of power batteries of electric automobile |
| CN103419672A (en) * | 2013-07-23 | 2013-12-04 | 南通大学 | Plug-in hybrid electric vehicle lithium battery real-time monitoring method |
| CN103427651A (en) * | 2013-07-25 | 2013-12-04 | 天津市松正电动汽车技术股份有限公司 | Vehicle power supply system and working method thereof |
| CN103481782A (en) * | 2013-10-15 | 2014-01-01 | 东北石油大学 | Instrument/meter for hybrid power vehicle |
| CN103481782B (en) * | 2013-10-15 | 2016-01-06 | 东北石油大学 | A kind of instrument system of hybrid vehicle |
| CN103728568A (en) * | 2014-01-06 | 2014-04-16 | 东风汽车公司 | Method and device for detecting single lithium battery voltage |
| CN104852435A (en) * | 2015-05-22 | 2015-08-19 | 聊城大学 | Electric automobile serial lithium battery management system and a management method thereof |
| CN108172938A (en) * | 2017-12-25 | 2018-06-15 | 华南理工大学广州学院 | A kind of power battery thermal management |
| WO2021017330A1 (en) * | 2019-07-29 | 2021-02-04 | 深圳市吉毅创能源科技有限公司 | Smart battery pack monitoring method and system, smart battery pack, and storage medium |
| CN112793466A (en) * | 2021-03-24 | 2021-05-14 | 辽宁工业大学 | Control method of new energy automobile battery management system |
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