CN103124086A - Battery management system of electric automobile - Google Patents
Battery management system of electric automobile Download PDFInfo
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- CN103124086A CN103124086A CN2011103699739A CN201110369973A CN103124086A CN 103124086 A CN103124086 A CN 103124086A CN 2011103699739 A CN2011103699739 A CN 2011103699739A CN 201110369973 A CN201110369973 A CN 201110369973A CN 103124086 A CN103124086 A CN 103124086A
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Abstract
The invention provides a battery management system of an electric automobile. The battery management system comprises a monitoring module, a central processing unit and a control module. The monitoring module is used for monitoring a state of a battery pack and a state of the battery management system in real time, and sending abnormal condition data of the battery pack and/or the battery management system when the states/state of the battery pack and/or the battery management system are/is abnormal. The central processing unit is used for generating a control instruction according to the abnormal condition data of the battery pack and/or the battery management system. The control module is communicated with the monitoring module and the central processing unit and is used for sending the condition data of the battery pack and the battery management system to the central processing unit and controlling the battery management system according to the control instruction. The battery management system can timely master the abnormal operation state of batteries, give full play to performance of the battery pack and provide maximum protection for the battery pack, and can monitor an operation state of the battery management system, timely feed back abnormal states of systems, take protective measures and improve the safety performance of the electric automobile.
Description
Technical field
The present invention relates to the 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 is as the core component of electric automobile, it managed have great significance.
Battery management system is the important means that the electrokinetic cell service behaviour ensures.Battery management system makes battery performance and lifetime, has fully guaranteed the runnability of battery, can give battery protection again simultaneously.
The problem that existing battery management system exists is, response delay can not satisfy the purpose of battery system Real Time Monitoring, increases the possibility that has an accident.
Summary of the invention
Purpose of the present invention is intended to solve at least 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, be used 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 is used for generating control command according to the abnormality data of described battery pack and/or the abnormality data of described battery management system; And control module, described control module is communicated by letter with described central processing unit with described monitoring modular, is used for the abnormality data of described battery pack and the abnormality data of described battery management system are sent to described central processing unit and are used for controlling described battery pack and described battery management system according to the control command of described central processing unit generation.
Battery management system according to the electric automobile of the embodiment of the present invention; can monitor the battery operation state of battery pack on the one hand; in time grasp the abnormality of battery operation; thereby can give full play to the performance of battery pack; give the protection of battery pack maximum; can monitor the running status of battery management system on the other hand, in time feed back various system exception states and make corresponding safeguard measure according to various abnormalities, improve the security performance of electric automobile.
In one embodiment of the invention, described monitoring modular further comprises: at least one data acquisition unit is used for gathering the status data of corresponding battery pack and the status data of battery management system; Judging unit is used for respectively status data according to the status data of described battery pack and described battery management system and judges whether the state of the state of described battery pack and described battery management system is normal; And transmitting element, be used for when described judging unit is determined the abnormal state of the state of described battery pack and/or described battery management system, the abnormality data of described battery pack and/or the abnormality data of described battery management system being 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.But the running status of the battery of Real-Time Monitoring battery pack is thus in time found the abnormality of battery operation.
In one embodiment of the invention, the status data of described battery management system comprises: wiring state, AD transition state and the judgement of AD magnitude of voltage.But the running state data of Real-Time Monitoring battery management system, make diagnosis by the circuit state to battery management system that these running state data can be real-time thus, realizes 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, be used for according to the abnormality data of described battery pack and/or the abnormality data of described battery management system, send alarm.Can in time abnormality be fed back to the driver thus, the driver is made a response if having time, improve the electric automobile Operation safety.
Battery management system according to the embodiment of the present invention; can monitor the battery operation state of battery pack on the one hand; in time grasp the abnormality of battery operation; thereby can give full play to the performance of battery pack; give the protection of battery pack maximum; can monitor the running status of battery management system on the other hand, in time feed back various system exception state feedback and make corresponding safeguard measure according to various abnormalities, 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 part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or the additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments and obviously and easily understand, wherein:
Fig. 1 is the schematic diagram of 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 battery management system of the electric automobile of another embodiment of the present invention.
Embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
Fig. 1 is the schematic diagram of battery management system of the electric automobile of one embodiment of the invention.As shown in Figure 1, the battery management system according to the electric automobile of the embodiment of the present invention comprises: monitoring modular 100, central processing unit 200 and control module 300.
Monitoring modular 100 is used 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 battery pack and/or battery management system, sends the abnormality data of battery pack and the abnormality data of battery management system.Central processing unit 200 is used for generating control command according to the abnormality data of the abnormality data of battery pack and battery management system.Control module 300 is communicated by letter with central processing unit 200 with monitoring modular 100, be used for the abnormality data of battery pack and the abnormality data of battery management system are sent to central processing unit 200, and be used for controlling battery pack and battery management system according to the control command that central processing unit 200 generates.
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 used for gathering the status data of corresponding 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. for example can 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.But the running status of Real-Time Monitoring battery pack and battery management system is thus in time found the abnormality of battery pack and battery management system self.Judging unit 120 is used for status data according to the status data of battery pack and battery management system and judges whether the state of the state of battery pack and battery management system is normal.Transmitting element 130 is used for when the abnormal state of the state of judging unit 120 definite battery pack and/or battery management system, the abnormality data of battery pack and/or the abnormality data of battery management system being sent to control module 300.Thus, can reduce the data volume of transmission, improve data processing speed, improve the security performance of electric automobile.
In one embodiment of the invention, control module 300 can be passed through SPI (Serial Peripheral Interface with monitoring modular 100, Serial Peripheral Interface (SPI)) bus interface communication, thus the abnormality data of battery pack and battery management system are passed to control 300.The spi bus interface is mainly realized carrying out synchronous serial-data transmission between processor and peripheral low speed devices, and data step-by-step transmission is full-duplex communication, and data transmission bauds is fast.
Central processing unit 200 can pass through CAN (Controller Area Network with control module 300, controller local area network) bus communication, thereby control module 300 is passed to central processing unit 200 with the abnormality data of battery pack and battery management system, and central processing unit 200 is passed to control module 300 with control command.The high reliability that CAN bus communication technology has and good error detection capability are specially adapted to that the ambient temperature such as Computer Controlled System for Vehicle is abominable, electromagnetic radiation strong and vibrate large industrial environment.
Battery management system according to the electric automobile of the embodiment of the present invention; can monitor the running status of the battery of battery pack on the one hand; in time grasp the abnormality of battery operation; thereby can give full play to the performance of battery pack; give the protection of battery pack maximum; can monitor the battery management system running status on the other hand; such as battery connection status etc.; and can be in time with various system exception state feedback and make safeguard measure; for example can cut off at any time circuit; thereby protective circuit and electric automobile, the security performance of raising electric automobile.
Fig. 3 is the schematic diagram of 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, is used for according to the abnormality data of battery pack and/or the abnormality data of battery management system, sends alarm.For example, can point out by indicator light, perhaps can send alarm sound.Thus, can in time abnormality be fed back to the driver, the driver is made a response if having time, improve the electric automobile Operation safety.
battery management system according to the electric automobile of the embodiment of the present invention, at least has following beneficial effect: the various running statuses that can monitor on the one hand the battery of battery pack, in time grasp the abnormality of battery operation, thereby can give full play to the performance of battery pack, give the protection of battery pack maximum, can monitor the battery management system running status on the other hand, such as battery connection status etc., and can be in time with various system exception state feedback and make safeguard measure, for example by central processing unit, the status data of battery management system is transferred to control module to battery management system, can in time control when abnormal problem occurring, can cut off at any time circuit, thereby protective circuit and electric automobile.And abnormality is in time fed back to the driver by alarm module, improve the security performance of electric automobile.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (6)
1. the battery management system of an electric automobile, is characterized in that, comprising:
Monitoring modular, be used 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 is used for generating control command according to the abnormality data of described battery pack and/or the abnormality data of described battery management system; And
Control module, described control module is communicated by letter with described central processing unit with described monitoring modular, is used for the abnormality data of described battery pack and the abnormality data of described battery management system are sent to described central processing unit and are used for controlling described battery pack and described battery management system according to the control command of described central processing unit generation.
2. the battery management system of electric automobile according to claim 1, is characterized in that, described monitoring modular further comprises:
At least one data acquisition unit is used for gathering the status data of corresponding battery pack and the status data of battery management system;
Judging unit is used for status data according to the status data of described battery pack and described battery management system and judges whether the state of the state of described battery pack and described battery management system is normal;
Transmitting element, be used for when described judging unit is determined the abnormal state of the state of described battery pack and/or described battery management system, the abnormality data of described battery pack and/or the abnormality data of described battery management system being sent to described control module.
3. the battery management system of electric automobile according to claim 2, is characterized in that, described data acquisition unit comprises temperature sensor.
4. the battery management system of electric automobile according to claim 2, is characterized in that, the status data of described battery pack comprises: cell voltage, battery current, battery temperature and battery electric quantity.
5. the battery management system of electric automobile according to claim 2, is characterized in that, the status data of described battery management system comprises: wiring state, AD transition state and the judgement of AD magnitude of voltage.
6. 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, is used 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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| CN104656502A (en) * | 2013-11-20 | 2015-05-27 | 恩智浦有限公司 | Function monitor |
| CN105958590A (en) * | 2016-06-08 | 2016-09-21 | 西安特锐德智能充电科技有限公司 | Apparatus and method for judging abnormal condition of battery charging process based on charging electric quantity changes |
| CN106080251A (en) * | 2016-08-05 | 2016-11-09 | 合肥工业大学 | There is the electric automobile power battery management system of complete fault self-diagnosis function |
| 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 |
| 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 |
| 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 |
| 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 |
| WO2023206483A1 (en) * | 2022-04-29 | 2023-11-02 | 时代电服科技有限公司 | Battery management method, battery management unit, and electric device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104656502A (en) * | 2013-11-20 | 2015-05-27 | 恩智浦有限公司 | Function monitor |
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| CN106080251A (en) * | 2016-08-05 | 2016-11-09 | 合肥工业大学 | There is the electric automobile power battery management system of complete fault self-diagnosis function |
| 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 |
| WO2023206483A1 (en) * | 2022-04-29 | 2023-11-02 | 时代电服科技有限公司 | Battery management method, battery management unit, and electric device |
| 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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| CN103124086B (en) | 2015-11-18 |
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