CN202480901U - Communication lines of battery management systems of electric automobile - Google Patents
Communication lines of battery management systems of electric automobile Download PDFInfo
- Publication number
- CN202480901U CN202480901U CN2011205442503U CN201120544250U CN202480901U CN 202480901 U CN202480901 U CN 202480901U CN 2011205442503 U CN2011205442503 U CN 2011205442503U CN 201120544250 U CN201120544250 U CN 201120544250U CN 202480901 U CN202480901 U CN 202480901U
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- battery management
- management system
- communication lines
- management systems
- whole vehicle
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Communication lines of battery management systems of an electric automobile comprise whole vehicle communication lines, intersystem communication lines and internal communication lines, wherein whole vehicle communication lines are connected among battery management systems and a whole vehicle controller, intersystem communication lines are connected among all battery management systems, internal communication lines are arranged inside battery management systems, whole vehicle communication lines, intersystem communication lines and internal communication lines are independent of one another, and whole vehicle communication lines are controller area network (CAN) lines using a standard CANopen slave station protocol. Reliable communication among battery management systems and the whole vehicle controller is achieved by adoption of the standard CANopen slave station protocol, necessary object dictionary content of battery management systems is defined explicitly, the universality and the normativity of battery management system products are improved, potential risks during operation of power batteries are eliminated, simultaneously, concurrent working of a plurality of batteries is supported by communication lines, and the reliability of batteries of the automobile is improved.
Description
Technical field
The utility model relates to a kind of cell management system of electric automobile improvement technology.
Background technology
Battery management system is the necessary means that ensures the safe operation of new-energy automobile electrokinetic cell.Flourish along with the new-energy automobile industry, new battery management system product emerges in an endless stream, and a hundred flowers blossom.The CAN bus communication protocol that the car load communication of overwhelming majority battery management system adopts car load factory independently to define separately, concrete signalling methods and Content of Communication have nothing in common with each other.Before car load and battery management system exploitation, must clearly define CAN bus communication speed, node ID, message content etc.Communication protocol promptly locked after product development was accomplished, and improved to the upgrading of communication protocol and must restart product development process.
Because the CAN bus communication protocol that car load factory independently defines has nothing in common with each other, the communication process of battery management system and entire car controller just varies.Thereby cause the commonality of battery management system car load communication very poor, no matter be that product development process or product later stage upgrade maintenance all increase great amount of cost.Owing to the degree of perfection of each car load factory definition car load communication protocol is different, the reliability of battery management system product car load communication is also inconsistent, the potential risk when having increased the new-energy automobile operation simultaneously.
The utility model content
In view of this, the utility model technical matters that will solve provides a kind of highly versatile, cell management system of electric automobile communication line that reliability is high.
The utility model adopts following scheme to realize:
A kind of cell management system of electric automobile communication line; Comprise the car load communication line, the intersystem communications circuit between each battery management system and the battery management system in-to-in intercommunicating line that are connected between battery management system and the entire car controller; Described car load communication line, intersystem communications circuit and intercommunicating line are separate, and described car load communication line is for adopting the CAN circuit of standard CAN open slave station agreement.
Wherein, described intersystem communications circuit is the CAN circuit, and one of them is the main battery management system in each battery management system, is connected through this main battery management system between other battery management systems and the entire car controller and realizes communication.
Wherein, described intercommunicating line is the CAN circuit also, comprises a mainboard, a hardboard and a plurality of slave plate in each battery management system, and hardboard is connected with mainboard through the CAN circuit with slave plate realizes communication.
The CANopen slave station agreement of the utility model through the employing standard realize battery management system and entire car controller between reliable communication; Clearly defined the necessary object dictionary content of battery management system; The commonality and the standardization of battery management system product have been improved; Potential risk when having eliminated the electrokinetic cell operation, the utility model is supported a plurality of concurrent workings simultaneously, has improved the reliability of Vehicular battery.
Description of drawings
Fig. 1 is the utility model embodiment Circuits System block diagram.
The specific embodiment
Below will combine accompanying drawing and embodiment that the utility model is described in further detail for the ease of it will be appreciated by those skilled in the art that:
Battery management system comprises the indispensable function of general battery management system in the cell management system of electric automobile communication line that present embodiment discloses; As electric core voltage acquisition, temperature acquisition, total voltage and total current collection, SOC estimation, fault recognition detect with warning, insulation, car load CAN communicates by letter etc.; Different with general battery management system is; This battery management system adopts the CANopen slave station agreement realization of standard and communicating by letter of entire car controller; Pass through the object dictionary of the definition battery management system of standard simultaneously, guaranteed the commonality and the reliability of car load communication.
This programme institute design-calculated cell management system of electric automobile communication line comprises car load communication line 1, the intersystem communications circuit 2 between each battery management system and the battery management system in-to-in intercommunicating line 3 that is connected between battery management system and the entire car controller 11; Car load communication line 1, intersystem communications circuit 2 and intercommunicating line 3 are separate; Wherein, car load communication line 1 is for adopting the CAN circuit of standard CAN open slave station agreement.
Wherein, Intersystem communications circuit 2 is the CAN circuit; One of them is the main battery management system in each battery management system, is connected through this main battery management system between other battery management systems and the entire car controller and realizes communication, the main battery management system operation that can work independently.The main battery management system is responsible for receiving the electrokinetic cell data from battery management system, after the employing appropriate algorithm is handled all electrokinetic cell data is sent to entire car controller.The main battery management system receives the control command of entire car controller simultaneously, with sending to from battery management system of control command cycle of entire car controller.Can judge the mode of operation of main battery management system through the control command that this cycle sends from battery management system; If main battery management system operation irregularity will become the main battery management system from battery management system and continue the control command that employing CANopen slave station agreement is communicated by letter with car load and transmitted car load.This kind mode of operation has improved the reliability of new forms of energy vehicle and electrokinetic cell.
Wherein, Described intercommunicating line is the CAN circuit also; Comprise a mainboard 31, a hardboard 32 and a plurality of slave plate 33 in each battery management system, communicate by letter between mainboard 31 and hardboard 32 and the slave plate 33 that hardboard 32 sends to mainboard 31 processing with slave plate 33 with concrete electrokinetic cell information.
Adopt accepted standard CANopen (the Control Area Network of battery management system institute of the communication line of such scheme; CAN) slave station agreement; The main function that realizes comprises supports SDO (Service Data Object; Service Data Objects), the transmission and the reception of PDO (process data object, Process Data Objects) message, the TPDO that sends through the cycle and the data exchange of RPDO message packet realization battery management system and entire car controller; Support that (layer is provided with service agreement through LSS; Layer Setting Services and Protocol) module is provided with the CAN traffic rate and the node ID of battery management system; Follow-uply can dynamically update configuration, improve the commonality of system software according to the actual items needs; Support that perfect Network Management Function is the transmission and the reception of heartbeat message and urgent message, battery management system can carry out emergency treatment when network anomaly or entire car controller node loss, guarantees vehicle and electrokinetic cell safety.Support dynamic-configuration PDO, can pass through the cooresponding content of CANopen configuration tool dynamic management PDO, realize the renewal and the upgrading of communication protocol.
The CANopen slave station agreement of this programme through standard, standard the signalling methods of battery management system with entire car controller, pass through the object dictionary realization of normalized definition battery management system for concrete Content of Communication and parameter this patent.The object dictionary of battery management system is standardized has described all communication objects.As, index 0x1000 ~ 0x1FFF definition messaging parameter object; Index 0x2000 ~ specific the object of 0x5FFF definition maker; The messaging parameter object comprises device type, error register, error logging, aberration, sync message ID and cycle, device name and software and hardware version, CANopen node ID, urgent message ID, heartbeat message cycle, RPDO messaging parameter and Mapping parameter, TPDO messaging parameter and Mapping parameter or the like; The specific object of maker mainly is the relevant data of electrokinetic cell, comprises CAN traffic rate, battery total voltage, total current, SOC, maximum charging and discharging currents, minimax temperature and location number, minimax electricity core voltage and location number, entire car controller order, battery status information and mis-information or the like of allowing.Because allow the battery management system concurrent working, above object all is the data that comprise a plurality of battery management systems.
More than be the wherein concrete implementation of the utility model, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these conspicuous replacement forms all belong to the protection domain of the utility model.
Claims (3)
1. cell management system of electric automobile communication line; Comprise the car load communication line (1), the intersystem communications circuit (2) between each battery management system and the battery management system in-to-in intercommunicating line (3) that are connected between battery management system and the entire car controller (11); It is characterized in that: described car load communication line, intersystem communications circuit and intercommunicating line are separate, and described car load communication line is for adopting the CAN circuit of standard CAN open slave station agreement.
2. cell management system of electric automobile communication line according to claim 1; It is characterized in that: described intersystem communications circuit is the CAN circuit; One of them is the main battery management system in each battery management system, is connected through this main battery management system between other battery management systems and the entire car controller and realizes communication.
3. cell management system of electric automobile communication line according to claim 1; It is characterized in that: described intercommunicating line is the CAN circuit; Comprise a mainboard (31), a hardboard (32) and a plurality of slave plate (33) in each battery management system, hardboard is connected with mainboard through the CAN circuit with slave plate realizes communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205442503U CN202480901U (en) | 2011-12-23 | 2011-12-23 | Communication lines of battery management systems of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205442503U CN202480901U (en) | 2011-12-23 | 2011-12-23 | Communication lines of battery management systems of electric automobile |
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| Publication Number | Publication Date |
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| CN202480901U true CN202480901U (en) | 2012-10-10 |
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| CN2011205442503U Expired - Fee Related CN202480901U (en) | 2011-12-23 | 2011-12-23 | Communication lines of battery management systems of electric automobile |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104553850A (en) * | 2014-12-25 | 2015-04-29 | 郑州精益达汽车零部件有限公司 | Data collection unit of battery management system |
| CN107336612A (en) * | 2016-11-24 | 2017-11-10 | 德阳九鼎智远知识产权运营有限公司 | A kind of Ni-MH battery cell management system of electric automobile and method |
| CN108322357A (en) * | 2017-12-14 | 2018-07-24 | 中国北方车辆研究所 | A kind of heartbeat detecting method of vehicle CAN network communication node |
| CN109415028A (en) * | 2016-07-07 | 2019-03-01 | 株式会社杰士汤浅国际 | Vehicular communication system, the managing device of battery, circuit substrate, battery, communication standard switching method |
-
2011
- 2011-12-23 CN CN2011205442503U patent/CN202480901U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104553850A (en) * | 2014-12-25 | 2015-04-29 | 郑州精益达汽车零部件有限公司 | Data collection unit of battery management system |
| CN109415028A (en) * | 2016-07-07 | 2019-03-01 | 株式会社杰士汤浅国际 | Vehicular communication system, the managing device of battery, circuit substrate, battery, communication standard switching method |
| CN107336612A (en) * | 2016-11-24 | 2017-11-10 | 德阳九鼎智远知识产权运营有限公司 | A kind of Ni-MH battery cell management system of electric automobile and method |
| CN108322357A (en) * | 2017-12-14 | 2018-07-24 | 中国北方车辆研究所 | A kind of heartbeat detecting method of vehicle CAN network communication node |
| CN108322357B (en) * | 2017-12-14 | 2021-11-02 | 中国北方车辆研究所 | Heartbeat detection method for vehicle CAN network communication node |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20191223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |