CN103124086B - The battery management system of electric automobile - Google Patents
The battery management system of electric automobile Download PDFInfo
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- CN103124086B CN103124086B CN201110369973.9A CN201110369973A CN103124086B CN 103124086 B CN103124086 B CN 103124086B CN 201110369973 A CN201110369973 A CN 201110369973A CN 103124086 B CN103124086 B CN 103124086B
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Abstract
The present invention proposes a kind of battery management system of electric automobile, comprise: monitoring modular, for the state of Real-Time Monitoring battery pack and the state of battery management system, and when the abnormal state of battery pack and/or battery management system, send the abnormality data of battery pack and/or battery management system; Central processing unit, for the abnormality data genaration control command according to battery pack and/or battery management system; And control module, communicate with central processing unit with monitoring modular, for the status data of battery pack and battery management system being sent to central processing unit and controlling battery pack and battery management system according to control command.System of the present invention; the abnormality of battery operation can be grasped on the one hand in time; give full play to the performance of battery pack; give the protection that battery pack is maximum; the running status of monitoring battery management system on the other hand; in time various system exception state feedback can be made safeguard measure, improve the security performance of electric automobile.
Description
Technical field
The present invention relates to auto electric technical field, particularly a kind of battery management system of electric automobile.
Background technology
Along with the appearance of energy crisis, the electric automobile of clean environment firendly receives increasing concern.Electrokinetic cell, as the core component of electric automobile, carries out management to it and has great significance.
Battery management system is the important means that electrokinetic cell service behaviour ensures.Battery management system makes battery performance and lifetime, fully ensure that the runnability of battery, can give battery protection again simultaneously.
Existing battery management system Problems existing is, response delay, can not meet the object that battery system is monitored in real time, increases the possibility had an accident.
Summary of the invention
Object of the present invention is intended at least solve above-mentioned technological deficiency.
For achieving the above object, the present invention proposes a kind of battery management system of electric automobile, comprise: monitoring modular, for the state of Real-Time Monitoring battery pack and the state of battery management system, and when the abnormal state of the state of described battery pack and/or described battery management system, send the abnormality data of described battery pack and/or the abnormality data of described battery management system; Central processing unit, for according to the abnormality data of described battery pack and/or the abnormality data genaration control command of described battery management system; And control module, described control module communicates with described central processing unit with described monitoring modular, for the abnormality data of described battery pack and the abnormality data of described battery management system being sent to described central processing unit and the control command being used for generating according to described central processing unit controls described battery pack and described battery management system.
According to the battery management system of the electric automobile of the embodiment of the present invention; the battery operation state of battery pack can be monitored on the one hand; the abnormality of timely grasp battery operation; thus the performance of battery pack can be given full play to; give the protection that battery pack is maximum; the running status of battery management system can be monitored on the other hand, feed back various system exception state in time and make corresponding safeguard measure according to various abnormality, improve the security performance of electric automobile.
In one embodiment of the invention, described monitoring modular comprises further: at least one data acquisition unit, for gathering the corresponding status data of battery pack and the status data of battery management system; According to the status data of described battery pack and the status data of described battery management system, judging unit, for judging that whether the state of the state of described battery pack and described battery management system is normal respectively; And transmitting element, during for determining the abnormal state of the state of described battery pack and/or described battery management system at described judging unit, the abnormality data of described battery pack and/or the abnormality data of described battery management system are sent to described control module.
In one embodiment of the invention, data acquisition unit comprises temperature sensor.
In one embodiment of the invention, the status data of described battery pack comprises: cell voltage, battery current, battery temperature and battery electric quantity.Thus can the running status of battery of Real-Time Monitoring battery pack, the abnormality of Timeliness coverage battery operation.
In one embodiment of the invention, the status data of described battery management system comprises: wiring state, AD transition state and AD magnitude of voltage judge.Thus can the running state data of Real-Time Monitoring battery management system, by these running state data can be real-time diagnosis is made to the circuit state of battery management system, realize self-diagnostic function.
In one embodiment of the invention, the battery management system of described electric automobile also comprises: alarm module, described alarm module is connected with described central processing unit, for according to the abnormality data of described battery pack and/or the abnormality data of described battery management system, send alarm.In time abnormality can be fed back to driver thus, driver is made a response if having time, improve the fail safe that electric automobile runs.
According to the battery management system of the embodiment of the present invention; the battery operation state of battery pack can be monitored on the one hand; the abnormality of timely grasp battery operation; thus the performance of battery pack can be given full play to; give the protection that battery pack is maximum; the running status of battery management system can be monitored on the other hand, feed back various system exception state feedback in time and make corresponding safeguard measure according to various abnormality, improve the security performance of electric automobile.In addition, the realization of battery management system of the present invention is simple, and cost is lower.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the schematic diagram of the battery management system of the electric automobile of one embodiment of the invention;
Fig. 2 is the schematic diagram of the monitoring modular of one embodiment of the invention; And
Fig. 3 is the schematic diagram of the battery management system of the electric automobile of another embodiment of the present invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Fig. 1 is the schematic diagram of the battery management system of the electric automobile of one embodiment of the invention.As shown in Figure 1, according to the battery management system of the electric automobile of the embodiment of the present invention, comprising: monitoring modular 100, central processing unit 200 and control module 300.
The state of monitoring modular 100 for Real-Time Monitoring battery pack and the state of battery management system, and when the abnormal state of the state of battery pack and/or battery management system, send the abnormality data of battery pack and the abnormality data of battery management system.Central processing unit 200 is for according to the abnormality data of battery pack and the abnormality data genaration control command of battery management system.Control module 300 communicates with central processing unit 200 with monitoring modular 100, for the abnormality data of battery pack and the abnormality data of battery management system are sent to central processing unit 200, and control battery pack and battery management system for the control command generated according to central processing unit 200.
Fig. 2 is the schematic diagram of the monitoring modular of one embodiment of the invention.As shown in Figure 2, in one embodiment of the invention, monitoring modular 100 comprises at least one data acquisition unit 110, judging unit 120 and transmitting element 130.At least one data acquisition unit 110 is for gathering the corresponding status data of battery pack and the status data of battery management system.Wherein, the status data of battery pack can comprise: cell voltage, battery current, battery temperature and battery electric quantity etc., such as, gather battery temperature by temperature sensor.The status data of battery management system can comprise: wiring state, AD transition state and the judgement of AD magnitude of voltage etc.Thus can the running status of Real-Time Monitoring battery pack and battery management system, the abnormality of Timeliness coverage battery pack and battery management system self.Whether judging unit 120 is normal for the state of the state and battery management system that judge battery pack according to the status data of battery pack and the status data of battery management system.Transmitting element 130 is for determining the abnormal state of the state of battery pack and/or battery management system during at judging unit 120, the abnormality data of battery pack and/or the abnormality data of battery management system are sent to control module 300.Thus, the data volume of transmission can be reduced, improve data processing speed, improve the security performance of electric automobile.
In one embodiment of the invention, control module 300 and monitoring modular 100 are by SPI (SerialPeripheralInterface, Serial Peripheral Interface (SPI)) bus interface communication, thus the abnormality data of battery pack and battery management system are passed to control control 300.Spi bus interface mainly realizes carrying out synchronous serial-data transmission between processor and peripheral low speed devices, and data step-by-step is transmitted, and be full-duplex communication, data transmission bauds is fast.
Central processing unit 200 and control module 300 are by CAN (ControllerAreaNetwork, controller local area network) bus communication, thus the abnormality data of battery pack and battery management system are passed to central processing unit 200 by control module 300, control command is passed to control module 300 by central processing unit 200.The high reliability that the CAN communication technology has and good error detection capability, be specially adapted to that the ambient temperatures such as Computer Controlled System for Vehicle are severe, electromagnetic radiation be strong and vibrate large industrial environment.
According to the battery management system of the electric automobile of the embodiment of the present invention; the running status of the battery of battery pack can be monitored on the one hand; the abnormality of timely grasp battery operation; thus the performance of battery pack can be given full play to; give the protection that battery pack is maximum; battery management system running status can be monitored on the other hand; such as battery connection status etc.; and in time various system exception state feedback can be made safeguard measure; such as can cut off circuit at any time; thus protective circuit and electric automobile, improve the security performance of electric automobile.
Fig. 3 is the schematic diagram of the battery management system of the electric automobile of another embodiment of the present invention.As shown in Figure 3, on basis embodiment illustrated in fig. 1, the battery management system of this electric automobile can also comprise: alarm module 400.Alarm module 400 is connected with central processing unit 200, for according to the abnormality data of battery pack and/or the abnormality data of battery management system, sends alarm.Such as, point out by indicator light, or can alarm sound be sent.Thus, in time abnormality can be fed back to driver, driver is made a response if having time, improve the fail safe that electric automobile runs.
According to the battery management system of the electric automobile of the embodiment of the present invention, at least there is following beneficial effect: the various running statuses that the battery of battery pack can be monitored on the one hand, the abnormality of timely grasp battery operation, thus the performance of battery pack can be given full play to, give the protection that battery pack is maximum, battery management system running status can be monitored on the other hand, such as battery connection status etc., and in time various system exception state feedback can be made safeguard measure, such as by central processing unit by the status data transfers of battery management system to control module to battery management system, can control in time when there is abnormal problem, circuit can be cut off at any time, thus protective circuit and electric automobile.And abnormality is fed back to driver in time by alarm module, improves the security performance of electric automobile.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (4)
1. a battery management system for electric automobile, is characterized in that, comprising:
Monitoring modular, for the state of Real-Time Monitoring battery pack and the state of battery management system, and when the abnormal state of the state of described battery pack and/or described battery management system, send the abnormality data of described battery pack and/or the abnormality data of described battery management system, wherein, described monitoring modular comprises further:
At least one data acquisition unit, for gathering the corresponding status data of battery pack and the status data of battery management system, wherein, the status data of described battery management system comprises: wiring state, AD transition state and AD magnitude of voltage judge;
Judging unit, whether the state for the state and described battery management system that judge described battery pack according to the status data of described battery pack and the status data of described battery management system is normal;
The abnormality data of described battery pack and/or the abnormality data of described battery management system, during for determining the abnormal state of the state of described battery pack and/or described battery management system at described judging unit, are sent to control module by transmitting element;
Central processing unit, for according to the abnormality data of described battery pack and/or the abnormality data genaration control command of described battery management system; And
Control module, described control module communicates with described central processing unit with described monitoring modular, for the abnormality data of described battery pack and the abnormality data of described battery management system being sent to described central processing unit and the control command being used for generating according to described central processing unit controls described battery pack and described battery management system.
2. the battery management system of electric automobile according to claim 1, is characterized in that, described data acquisition unit comprises temperature sensor.
3. the battery management system of electric automobile according to claim 1, is characterized in that, the status data of described battery pack comprises: cell voltage, battery current, battery temperature and battery electric quantity.
4. the battery management system of electric automobile according to claim 1, is characterized in that, also comprises:
Alarm module, described alarm module is connected with described central processing unit, for according to the abnormality data of described battery pack and/or the abnormality data of described battery management system, sends alarm.
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| CN201110369973.9A CN103124086B (en) | 2011-11-18 | 2011-11-18 | The battery management system of electric automobile |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2876016B1 (en) | 2013-11-20 | 2020-09-02 | Nxp B.V. | Function monitor |
| CN106558736A (en) * | 2015-09-25 | 2017-04-05 | 江苏威能汽车工业发展有限公司 | A kind of electric car lithium battery management system |
| CN105958590B (en) * | 2016-06-08 | 2018-08-28 | 西安特锐德智能充电科技有限公司 | The device and method of battery charging process exception is judged according to charge capacity variation |
| CN106080251B (en) * | 2016-08-05 | 2020-05-05 | 合肥工业大学 | Electric automobile power battery management system with complete fault self-diagnosis function |
| WO2019140617A1 (en) * | 2018-01-19 | 2019-07-25 | 深圳市大疆创新科技有限公司 | Battery control method, battery control system, unmanned aerial vehicle, and battery |
| CN117280521A (en) * | 2022-04-29 | 2023-12-22 | 时代电服科技有限公司 | Battery management method, battery management unit and electric equipment |
| CN115001098A (en) * | 2022-06-20 | 2022-09-02 | 北京索英电气技术有限公司 | Battery management method and device and energy storage system |
| CN114801877A (en) * | 2022-06-23 | 2022-07-29 | 深圳市菲尼基科技有限公司 | Monitoring system of electric vehicle power battery pack and electric vehicle |
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| CN101692583A (en) * | 2009-09-21 | 2010-04-07 | 惠州市亿能电子有限公司 | Battery management system for pure electric bus |
| CN102205800A (en) * | 2011-02-25 | 2011-10-05 | 南京华博科技有限公司 | Intelligent battery management system of electric car |
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| JP2004274875A (en) * | 2003-03-07 | 2004-09-30 | Yamaha Motor Co Ltd | Charging apparatus for motor vehicle |
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| CN101318489A (en) * | 2008-05-07 | 2008-12-10 | 中国科学院电工研究所 | Vehicle mounted battery management system control method |
| CN101692583A (en) * | 2009-09-21 | 2010-04-07 | 惠州市亿能电子有限公司 | Battery management system for pure electric bus |
| CN102205800A (en) * | 2011-02-25 | 2011-10-05 | 南京华博科技有限公司 | Intelligent battery management system of electric car |
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