CN102582462B - Electric vehicle battery management system - Google Patents
Electric vehicle battery management system Download PDFInfo
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- CN102582462B CN102582462B CN201210046286.8A CN201210046286A CN102582462B CN 102582462 B CN102582462 B CN 102582462B CN 201210046286 A CN201210046286 A CN 201210046286A CN 102582462 B CN102582462 B CN 102582462B
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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
Abstract
The invention discloses an electric vehicle battery management system which comprises a master control module and multiple slave control modules connected with the master control module, wherein a sensor of each slave control module is connected in series with a control switch of the slave control module; the control switch of the front one of adjacent two slave control modules is connected with an inductor of the rear one; and a level output end of the master control module is sequentially connected in series with the sensor and control switch of each slave control module and the sensor of the master control module through an address bus. The electric vehicle battery management system disclosed by the invention has a simple structure and low manufacturing cost, can automatically update the ID (identity) addresses of the slave control modules, has perfect expansion perforamnce, and only needs to automatically allocate the circuit and wire harness without modification when the slave control module is replaced.
Description
Technical field
The present invention relates to batteries of electric automobile field, specifically a kind of cell management system of electric automobile.
Background technology
At present in cell management system of electric automobile, because the battery cell of needs monitoring is more, conventionally adopt distributed frame, it is one master and multiple slaves structure, by a plurality of, from control module (BMU), detect battery cell voltage, the form by communication bus gathers result of a measurement to main control module (BMS).On communication bus, need to distinguish each from control module by ID address, therefore need to give from control module assignment ID address.Existing ID allocation scheme mainly contains following several:
1, address is solidificated in from control module software: this mode is solidificated in ID address from the software of control module.When needs are changed from control module, just need to upgrade the program from control module, complicated operation, does not possess commonality.
2, address is write from the EEPROM of control module: this mode writes ID address from the EEPROM of control module by communication interface.This mode possesses certain commonality, but still needs manual amendment while changing from control module at every turn, and degree of automation is not high.
3, by toggle switch, address is set: from control module, adding toggle switch, when changing from control module by regulating thin code switch to arrange from the ID address of control module.This mode is each while changing from control module, and all needing can direct control circuit card, needs manual amendment, the ability that does not possess automation, meanwhile, due to the jolting of automobile, feature, the problems such as common toggle switch average life is short, easy inefficacy such as temperature traverse is large.
4, by external address bus, control address: this mode is similar to toggle switch, will increase several digital signals from the interface of control module, the low and high level setting by unlike signal is from the ID address of control module.This mode does not need overwork to get final product automatic reassignment ID address when changing from control module.But because needs increase signal in interface, need extra wire harness and circuit, increased complexity and the cost of system.Meanwhile, the quantity of digital signal has determined the extensibility of whole system.As, 2 signals can only meet 4 from control module.If need to increase from control module, need to redesign address bus.If reserved a large amount of signal, can cause the waste of resource.Therefore,, although this mode can realize the automatic distribution of ID address, do not possess extendability.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of cell management system of electric automobile, solve in existing management system from the ID address assignment of control module complicated, the difficult problem of revising in ID address while changing from control module.
Technical scheme of the present invention is:
A kind of cell management system of electric automobile, comprise main control module be connected with main control module a plurality of from control module, described each is from controlling the sensor of module and being connected in series from the master cock of control module, and adjacent two master cocies from control module that are positioned at front end from control module are connected with the inductor from control module that is positioned at rear end, the level output end of described main control module is connected in series by address bus from controlling the sensor of sensor of module and master cock, main control module with each successively.
Described main control module is connected by CAN bus or RS485 bus from control module with a plurality of.
The present invention is simple in structure, cost of manufacture is low, and the automatically updated ID address from control module, has good scalability, when changing from control module, without circuit and wire harness are modified, only needs again automatically to distribute.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
See Fig. 1, a kind of cell management system of electric automobile, comprise main control module 1, first from control module 2a, second from control module 2b, the 3rd from control module 2c with for being connected main control module 1 and first from control module 2a, second from control module 2b, the 3rd CAN bus 3 from control module 2c, the level output end 6 of main control module 1 successively with the first first sensor 4a from control module 2a, first the first master cock 5a from control module 2a, second the second sensor 4b from control module 2b, second the second master cock 5b from control module 2b, the 3rd the 3rd sensor 4c from control module 2c, the 3rd the 3rd master cock 5c from control module 2c, the sensor 7 of main control module is connected in series by address bus 8.
Use principle of the present invention:
1, each distributes unique sequence number from control module when dispatching from the factory, and while distributing address pattern, the level output end 6 of main control module 1 sends a high level and transmits along address bus, and all master cocies from control module disconnect;
2, first from the first sensor 4a of control module 2a, detect high level, first uses original reserved address to transmit Sequence Number to main control module 1 from control module 2a, and main control module 1 distributes address to first from control module 2a according to what receive sequence number;
3, first from control module 2a, be assigned with address, open the first master cock 5a, make second from the second sensor 4b high level of control module 2b, high level to be detected, then second from control module 2b, use original reserved address to transmit Sequence Number to main control module 1, main control module 1 distributes address to second from control module 2b according to what receive sequence number;
4, repeating step 3, until the 3rd has been assigned with address from control module 2c.
Main control module record from sequence number and the address of control module, is confirmed while powering at every turn, if all addresses are all effective, is entered normal operation mode; If there is address, lose, enter address allocation pattern.
Claims (2)
1. a cell management system of electric automobile, comprise main control module be connected with main control module a plurality of from control module, it is characterized in that: described each is from controlling the sensor of module and being connected in series from the master cock of control module, and adjacent two master cocies from control module that are positioned at front end from control module are connected with the inductor from control module that is positioned at rear end, the level output end of described main control module is connected in series by address bus from controlling the sensor of sensor of module and master cock, main control module with each successively.
2. a kind of cell management system of electric automobile according to claim 1, is characterized in that: described main control module is connected by CAN bus or RS485 bus from control module with a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210046286.8A CN102582462B (en) | 2012-02-28 | 2012-02-28 | Electric vehicle battery management system |
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| CN201210046286.8A CN102582462B (en) | 2012-02-28 | 2012-02-28 | Electric vehicle battery management system |
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| CN102582462A CN102582462A (en) | 2012-07-18 |
| CN102582462B true CN102582462B (en) | 2014-03-26 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830685B (en) * | 2012-09-19 | 2015-02-18 | 三一矿机有限公司 | Electric wheel dumper and control system |
| CN103107570B (en) * | 2012-12-10 | 2016-12-07 | 惠州市亿能电子有限公司 | The communication structure of battery management system and the extended method of battery management system |
| CN103676833B (en) * | 2013-09-25 | 2016-04-13 | 江苏峰谷源储能技术研究院有限公司 | A kind of automatic configuration of battery electron parts address and modification method |
| CN103809476A (en) * | 2014-02-24 | 2014-05-21 | 中国第一汽车股份有限公司 | Dynamic management method for IDs of module control units of distributed battery management system |
| CN104228603B (en) * | 2014-09-25 | 2016-08-31 | 重庆长安汽车股份有限公司 | A kind of Address Recognition method and apparatus |
| CN106547223A (en) * | 2016-10-10 | 2017-03-29 | 深圳市沃特玛电池有限公司 | A kind of automatic addressing method of CAN and its system |
| CN107505576A (en) * | 2017-08-24 | 2017-12-22 | 阿尔特汽车技术股份有限公司 | Module automatic recognition system and method in distributed system |
| CN107395787B (en) * | 2017-09-01 | 2020-10-16 | 北京镁伽机器人科技有限公司 | Address allocation method, system, gateway and medium for CAN communication network |
| CN107719153A (en) * | 2017-09-07 | 2018-02-23 | 浙江吉利汽车研究院有限公司 | Collection plate address automatic allocating method and device in battery management system |
| CN110007625A (en) * | 2019-03-29 | 2019-07-12 | 安徽贵博新能科技有限公司 | The device and configuration method of configuration slave number in a kind of battery management system |
| CN112099398A (en) * | 2020-08-28 | 2020-12-18 | 昆山宝创新能源科技有限公司 | Coding method, battery management system and mobile platform |
| CN114265352A (en) * | 2021-12-22 | 2022-04-01 | 深圳埃瑞斯瓦特新能源有限公司 | Automatic configuration system and method for CAN bus ID |
| CN115426214B (en) * | 2022-09-15 | 2023-07-04 | 上海捷勃特机器人有限公司 | Number distribution system, method for slave device, slave device and readable medium |
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| CN201910474U (en) * | 2010-12-28 | 2011-07-27 | 深圳市航盛电子股份有限公司 | BMS and electric vehicle adopting same |
| CN102340159A (en) * | 2010-07-15 | 2012-02-01 | 凹凸电子（武汉）有限公司 | Battery module addresse assigning device, method and system |
| CN202528858U (en) * | 2012-02-28 | 2012-11-14 | 华霆（合肥）动力技术有限公司 | Electromobile battery management system |
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| WO2010144524A2 (en) * | 2009-06-10 | 2010-12-16 | A123 Systems, Inc. | System and method for communicating notice to limit degradation within a battery pack |
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| CN101559747A (en) * | 2009-05-27 | 2009-10-21 | 中国汽车技术研究中心 | Multi-functional automotive central information integration system for realizing filtration and forwarding between two CANs |
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Address after: 230601 Anhui city in Hefei Province, the economic and Technological Development Zone No. 62 battery factory Patentee after: Huating (Hefei) Power Technology Co., Ltd. Address before: 230601, Anhui, Hefei province Feixi peach blossom Industrial Park, bustling Avenue West Patentee before: Huating (Hefei) Power Technology Co., Ltd. |
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