CN102275524A - Diagnostic system and diagnostic method for power battery packs - Google Patents
Diagnostic system and diagnostic method for power battery packs Download PDFInfo
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- CN102275524A CN102275524A CN201110180485A CN201110180485A CN102275524A CN 102275524 A CN102275524 A CN 102275524A CN 201110180485 A CN201110180485 A CN 201110180485A CN 201110180485 A CN201110180485 A CN 201110180485A CN 102275524 A CN102275524 A CN 102275524A
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- 238000002405 diagnostic procedure Methods 0.000 title claims abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 14
- 238000005070 sampling Methods 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000003745 diagnosis Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract 2
- 239000000969 carrier Substances 0.000 abstract 1
- 238000012790 confirmation Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
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- 230000001360 synchronised effect Effects 0.000 description 1
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
The invention provides a diagnostic system and diagnostic method for power battery packs, which are used for effectively managing and monitoring power battery packs. In the diagnostic system for power battery packs provided by the invention, a power battery pack is composed of a plurality of battery modules, each battery module contains a plurality of single batteries, the inside of each battery module is provided with a battery management unit for monitoring the voltage and temperature of the single batteries, and the battery management unit is provided with a CAN communication module; and the diagnostic system for power battery packs provided by the invention also comprises an upper computer, and the upper computer is connected with each battery management unit by a CAN bus. The diagnostic method for power battery packs comprises the following steps that: the upper computer sends a CAN request message to each battery management unit by the CAN bus; after receiving the CAN request message, each battery management unit carriers out corresponding processing according to the contents of the CAN request message, and then sends the obtained processing result to the upper computer through a CAN response message; and the upper computer carries out confirmation, storage and display on the obtained diagnosis results according to the contents of the CAN response message.
Description
Technical field
The invention belongs to the parts diagnostic technology field of electronlmobil or hybrid vehicle, specially refer to a kind of diagnostic system and diagnostic method thereof of electrokinetic cell bag.
Background technology
The saving oil reduces discharging, and reduces greenhouse gas emission and air quality and purifies, and is three challenges greatly that world today's auto-industry face.Be the reply challenge, each big car company of the world is all being carried out the development of electronlmobil.Battery provides electric energy for the driving motor of electronlmobil, and electrical motor is converted into mechanical energy with the electric energy of power supply, by driving device or direct drive wheel and equipment.Electronlmobil itself is the pernicious gas of exhaust emission atmosphere not, even be scaled the discharging in power plant by institute's consumption of current, outside sulphur removal and the particulate, other pollutants also significantly reduces, because power plant is built in mostly away from densely populated city, the mankind is injured less, and power plant is fixed, the discharging of concentrating is removed various noxious emissions and is easier to, and has also had correlation technique.Because electric power can obtain from multiple primary energy,, remove people to the day by day exhausted worry of oil resources as coal, nuclear energy, waterpower, wind-force, light, heat etc.Electronlmobil can also make full use of power charge more than needed during low power consumption in night, and generating set day and night can both be made full use of, and improves its economic benefit greatly.
The electrokinetic cell bag is the energy source and the critical component of elec. vehicle, and its state quality and life-span length have determined the quality of vehicle performance to a great extent, therefore is necessary power brick is implemented actv. management and monitoring.
Summary of the invention
The objective of the invention is to propose a kind of diagnostic system and diagnostic method thereof of electrokinetic cell bag, the electrokinetic cell bag is implemented actv. management and monitoring.
In the diagnostic system of electrokinetic cell bag of the present invention, the electrokinetic cell bag is made up of several battery modules, each battery module comprises a plurality of cells, key is to be provided with the battery management unit that is used to monitor monomer battery voltage and temperature in each battery module, and described battery management unit is provided with the CAN communication module; The diagnostic system of this electrokinetic cell bag also comprises upper computer, and described upper computer links to each other with each battery management unit by the CAN bus.
Adopt distributed frame in the diagnostic system of electrokinetic cell bag of the present invention, utilize the battery management unit in each battery module that battery is monitored, and utilize the CAN bus of being convenient to expand that upper computer is linked to each other with each battery management unit, make whole diagnostic system arbitrarily adjust, to cut out and to expand, have very big alerting ability, comformability according to concrete power brick.
Specifically, described battery management unit is by control module, CAN communication module, sampling A module, voltage sample module, temperature sampling module and be used for forming to the power module of above-mentioned module for power supply, described control module is connected with CAN communication module, sampling A module respectively, and described sampling A module is connected with voltage sample module, temperature sampling module respectively.
Further, carry out communication by spi bus between control module in the described battery management unit and the sampling A module, SPI is a kind of synchronous serial communication mode that Motorola Inc. releases, be a kind of four line locking buses, because of its hardware capability very strong, the software relevant with SPI is just quite simple, makes CPU have more time to handle other affairs.
The diagnostic method of the diagnostic system of above-mentioned electrokinetic cell bag is: upper computer sends the CAN request message by the CAN bus to battery management unit; After battery management unit is received the CAN request message, handle accordingly, and the result that will handle sends to upper computer by the CAN response message according to the content of CAN request message; Described upper computer is confirmed, is stored and show diagnostic result according to the content of CAN response message.
Specifically, described CAN request message comprises two types of Read fault sign indicating number request message and diagnostic code cancellation request messages, and the content of described CAN request message comprises module's address and request type; Described CAN response message comprises two types of Read fault sign indicating number response message and diagnostic code cancellation response messages, and the content of described CAN response message comprises module's address, to the response status of request message.
Further, the content of described Read fault sign indicating number response message also comprises the diagnostic code quantity information, and when diagnostic code quantity was non-vanishing, the content of Read fault sign indicating number response message also comprised the diagnostic code type information.
For realizing diagnosis to battery management unit self, the battery management unit of avoiding having fault is packed into and is used in the battery, described CAN request message also comprises the self check order of battery management unit, and described CAN response message also comprises the self-detection result of battery management unit.
The diagnostic system of electrokinetic cell bag of the present invention has very big alerting ability, comformability, can realize trouble diagnosing simultaneously to electrokinetic cell bag and battery management unit, be convenient to the staff electrokinetic cell bag and battery management unit are monitored, thereby the performance and the function that guarantee electrokinetic cell bag and battery management unit are normal.
Description of drawings
Fig. 1 is the structure principle chart of the diagnostic system of electrokinetic cell bag of the present invention.
The specific embodiment
Contrast accompanying drawing below, by description, the effect of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and principle of work etc. are described in further detail embodiment.
Embodiment 1:
As shown in Figure 1, in the diagnostic system of the electrokinetic cell bag of present embodiment, the electrokinetic cell bag is made up of several battery modules, each battery module comprises a plurality of cells, be provided with the battery management unit that is used to monitor monomer battery voltage and temperature in each battery module, described battery management unit is provided with the CAN communication module; The diagnostic system of this electrokinetic cell bag also comprises upper computer, and described upper computer links to each other with each battery management unit by the CAN bus; Battery management unit is by control module, CAN communication module, sampling A module, voltage sample module, temperature sampling module and be used for forming to the power module of above-mentioned module for power supply, described control module is connected with CAN communication module, sampling A module respectively, and described sampling A module is connected with voltage sample module, temperature sampling module respectively; Wherein, carry out communication by spi bus between control module in the battery management unit and the sampling A module.(two battery management units that only draw among the figure, and the battery module that do not draw).
The diagnostic method of the diagnostic system of above-mentioned electrokinetic cell bag is: upper computer sends the CAN request message by the CAN bus to battery management unit; After battery management unit is received the CAN request message, handle accordingly, and the result that will handle sends to upper computer by the CAN response message according to the content of CAN request message; Described upper computer is confirmed, is stored and show diagnostic result according to the content of CAN response message.
Specifically, described CAN request message comprises two types of Read fault sign indicating number request message and diagnostic code cancellation request messages, and the content of described CAN request message comprises module's address and request type; Described CAN response message comprises two types of Read fault sign indicating number response message and diagnostic code cancellation response messages, and the content of described CAN response message comprises module's address, to the response status of request message.
Wherein, the form of CAN request message is as shown in the table:
The form of CAN response message is as shown in the table:
Further, the content of described Read fault sign indicating number response message also comprises the diagnostic code quantity information, and when diagnostic code quantity was non-vanishing, the content of Read fault sign indicating number response message also comprised the diagnostic code type information, and its concrete form is as shown in the table:
| Data field | Parameter name | Parameter value and definition | Self module declaration | Other module declarations |
| 1.0-1.7 | Module's address | 0x00-0xFF: module numbering | ? | ? |
| 2.0-2.7 | The diagnostic code number | 0x00-0xFF | ? | ? |
| 3.0-3.7 | Diagnostic code 1 | 0x10-0xFF | Trouble free is filled out 0x00 | ? |
| 4.0-4.7 | Diagnostic code 2 | 0x10-0xFF | Trouble free is filled out 0x00 | ? |
| 5.0-5.7 | Diagnostic code 3 | 0x10-0xFF | Trouble free is filled out 0x00 | ? |
| 6.0-6.7 | Diagnostic code 4 | 0x10-0xFF | Trouble free is filled out 0x00 | ? |
| 7.0-7.7 | Diagnostic code 5 | 0x10-0xFF | Trouble free is filled out 0x00 | ? |
| 8.0-8.7 | Diagnostic code 6 | 0x10-0xFF | Trouble free is filled out 0x00 | ? |
For realizing diagnosis to battery management unit self, the battery management unit of avoiding having fault is packed into and is used in the battery, described CAN request message also comprises the self check order of battery management unit, and described CAN response message also comprises the self-detection result of battery management unit.
In addition, the coding of various diagnostic code is as shown in the table:
Claims (7)
1. the diagnostic system of an electrokinetic cell bag, the electrokinetic cell bag is made up of several battery modules, each battery module comprises a plurality of cells, it is characterized in that being provided with the battery management unit that is used to monitor monomer battery voltage and temperature in each battery module, described battery management unit is provided with the CAN communication module; The diagnostic system of this electrokinetic cell bag also comprises upper computer, and described upper computer links to each other with each battery management unit by the CAN bus.
2. the diagnostic system of electrokinetic cell bag according to claim 1, it is characterized in that described battery management unit is by control module, CAN communication module, sampling A module, voltage sample module, temperature sampling module and be used for forming to the power module of above-mentioned module for power supply, described control module is connected with CAN communication module, sampling A module respectively, and described sampling A module is connected with voltage sample module, temperature sampling module respectively.
3. the diagnostic system of electrokinetic cell bag according to claim 2 is characterized in that carrying out communication by spi bus between control module in the described battery management unit and the sampling A module.
4. according to the diagnostic method of the diagnostic system of claim 1 or 2 or 3 described electrokinetic cell bags, it is characterized in that described upper computer sends the CAN request message by the CAN bus to battery management unit; After battery management unit is received the CAN request message, handle accordingly, and the result that will handle sends to upper computer by the CAN response message according to the content of CAN request message; Described upper computer is confirmed, is stored and show diagnostic result according to the content of CAN response message.
5. the diagnostic method of the diagnostic system of electrokinetic cell bag according to claim 4, it is characterized in that described CAN request message comprises two types of Read fault sign indicating number request message and diagnostic code cancellation request messages, the content of described CAN request message comprises module's address and request type; Described CAN response message comprises two types of Read fault sign indicating number response message and diagnostic code cancellation response messages, and the content of described CAN response message comprises module's address, to the response status of request message.
6. the diagnostic method of the diagnostic system of electrokinetic cell bag according to claim 5, the content that it is characterized in that described Read fault sign indicating number response message also comprises the diagnostic code quantity information, when diagnostic code quantity was non-vanishing, the content of Read fault sign indicating number response message also comprised the diagnostic code type information.
7. the diagnostic method of the diagnostic system of electrokinetic cell bag according to claim 5 is characterized in that described CAN request message also comprises the self check order of battery management unit, and described CAN response message also comprises the self-detection result of battery management unit.
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| CN201110180485A CN102275524A (en) | 2011-06-30 | 2011-06-30 | Diagnostic system and diagnostic method for power battery packs |
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| CN201110180485A CN102275524A (en) | 2011-06-30 | 2011-06-30 | Diagnostic system and diagnostic method for power battery packs |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560279A (en) * | 2013-11-21 | 2014-02-05 | 上海航天电源技术有限责任公司 | Battery management system diagnosing system based on CAN (Controller Area Network) bus and diagnosing-maintaining method of diagnosing system |
| CN103682481A (en) * | 2013-10-29 | 2014-03-26 | 惠州市亿能电子有限公司 | Diagnosis protection equipment and diagnosis protection method of battery management system |
| CN105137266A (en) * | 2015-08-31 | 2015-12-09 | 奇瑞汽车股份有限公司 | Voltage collection line system and method for battery management unit |
| CN106707171A (en) * | 2015-11-16 | 2017-05-24 | 上海汽车集团股份有限公司 | System and method of detecting fault battery unit |
| CN103580089B (en) * | 2012-07-25 | 2017-07-21 | 现代摩比斯株式会社 | distributed battery management system and distributed battery management method |
| CN109617774A (en) * | 2018-11-26 | 2019-04-12 | 上海融政能源科技有限公司 | A kind of management system and battery pack communication system of CAN device |
| CN110174620A (en) * | 2019-04-30 | 2019-08-27 | 格林美（武汉）城市矿产循环产业园开发有限公司 | A kind of battery performance remote diagnosis system and battery performance remote diagnosis method |
| CN115220675A (en) * | 2022-05-20 | 2022-10-21 | 广东逸动科技有限公司 | Control method of display device, and computer storage medium |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580089B (en) * | 2012-07-25 | 2017-07-21 | 现代摩比斯株式会社 | distributed battery management system and distributed battery management method |
| CN103682481A (en) * | 2013-10-29 | 2014-03-26 | 惠州市亿能电子有限公司 | Diagnosis protection equipment and diagnosis protection method of battery management system |
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| CN105137266A (en) * | 2015-08-31 | 2015-12-09 | 奇瑞汽车股份有限公司 | Voltage collection line system and method for battery management unit |
| CN106707171A (en) * | 2015-11-16 | 2017-05-24 | 上海汽车集团股份有限公司 | System and method of detecting fault battery unit |
| CN106707171B (en) * | 2015-11-16 | 2019-10-18 | 上海汽车集团股份有限公司 | System and method for detecting faulty battery cell |
| CN109617774A (en) * | 2018-11-26 | 2019-04-12 | 上海融政能源科技有限公司 | A kind of management system and battery pack communication system of CAN device |
| CN110174620A (en) * | 2019-04-30 | 2019-08-27 | 格林美（武汉）城市矿产循环产业园开发有限公司 | A kind of battery performance remote diagnosis system and battery performance remote diagnosis method |
| CN115220675A (en) * | 2022-05-20 | 2022-10-21 | 广东逸动科技有限公司 | Control method of display device, and computer storage medium |
| CN115220675B (en) * | 2022-05-20 | 2024-04-09 | 广东逸动科技有限公司 | Control method of display device, display device and computer storage medium |
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