CN103779943B - A kind of battery management system of electric automobile - Google Patents
A kind of battery management system of electric automobile Download PDFInfo
- Publication number
- CN103779943B CN103779943B CN201410058163.5A CN201410058163A CN103779943B CN 103779943 B CN103779943 B CN 103779943B CN 201410058163 A CN201410058163 A CN 201410058163A CN 103779943 B CN103779943 B CN 103779943B
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- fpga
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- electric automobile
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- 238000001514 detection method Methods 0.000 claims abstract description 24
- 238000004891 communication Methods 0.000 claims description 4
- 230000007257 malfunction Effects 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 230000003993 interaction Effects 0.000 claims description 2
- 230000004899 motility Effects 0.000 abstract description 4
- 230000004044 response Effects 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
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- 239000000295 fuel oil Substances 0.000 description 1
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- 239000004065 semiconductor Substances 0.000 description 1
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Classifications
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses the battery management system of a kind of electric automobile, it is characterised in that: described management system is that single-chip microcomputer constitutes redundancy backup structure with FPGA by data wire；Single-chip microcomputer, FPGA respectively by main control, detection line and Standby control, detection line Access Control I O unit, control I O unit access controlled device by holding wire.The present invention, using FPGA as standby system, utilizes that FPGA is able to programme, the feature of fast response time, enhances the motility of system, integrated level greatly, reduces the trouble point number of system.
Description
Technical field
The present invention relates to electric automobile manufactures and designs field, particularly to the battery management of a kind of electric automobile
System.
Background technology
Along with the enhancing of people's environmental consciousness, problem of environmental pollution is increasingly subject to people's attention, electronic vapour
Car has, as the automobile of a kind of novel energy, the advantage that conventional fuel oil car cannot reach in terms of discharge.
With growing with each passing day of electric automobile yield, its functional safety will be the important of evaluation system reliability
Index, but as the battery management system of the electric automobile kernel component functional safety under current situation
Design seriously lags behind other kernel components.
For the problems referred to above, provide a kind of novel battery management system for electric automobile, set of cells is carried out
Safety management, it is to avoid issuable accident is the problem that prior art needs to solve.
Summary of the invention
The technical problem to be solved is to provide the battery management system of a kind of electric automobile, to electricity
Pond group carries out safety management, it is to avoid issuable accident.
For reaching above-mentioned purpose, the technical scheme is that, the battery management system of a kind of electric automobile,
It is characterized in that: described management system is that single-chip microcomputer constitutes redundancy backup structure with FPGA by data wire；
Single-chip microcomputer, FPGA respectively by main control, detection line and Standby control, detection line Access Control I O unit,
Control I O unit access controlled device by holding wire.
Control algolithm hard wire logic unit, control algolithm hard wire logic unit and control it is provided with in described FPGA
I processed O unit by Standby control, detection line be attached.
It is attached by assist control port between described single-chip microcomputer and FPGA.
When described single-chip microcomputer detects FPGA operation exception, by assist control port by the control of FPGA
System, detection port are set to high-impedance state, and the control signal making FPGA is invalid, it is to avoid the mistake of FPGA is defeated
Go out to cause the malfunction of controlled device；In FPGA with single-chip data interaction, when FPGA examines
When measuring single-chip microcomputer output data exception, by control algolithm hard wire logic unit built-in for FPGA by backing up
Control, detection line, through control I O unit control controlled device.
The sensor signal that described single-chip microcomputer real-time reception set of cells sensor passes comes.
Described single-chip microcomputer is provided with vehicle communication port.
Described FPGA may be replaced by PLD, CPLD.
The battery management system of a kind of electric automobile, the present invention, using FPGA as standby system, utilizes FPGA
Able to programme, the feature of fast response time, enhances the motility of system, integrated level greatly, reduces and is
The trouble point number of system.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings；
Fig. 1 is the structural representation of the battery management system of a kind of electric automobile of the present invention；
In FIG, 1, controlled device；2, holding wire；3, control I O unit；4, Standby control, inspection
Survey line；5, control algolithm hard-wired logic circuit；6、FPGA；7, assist control port；8, data wire；
9, single-chip microcomputer；10, main control, detection line；11, sensor；12, sensor signal；13, vehicle leads to
News port.
Detailed description of the invention
As it is shown in figure 1, the present invention is single-chip microcomputer 9 constitutes redundancy backup structure with FPGA6 by data wire 8；
Single-chip microcomputer 9, FPGA6 are respectively by main control, detection line 10 and Standby control, detection line 4 Access Control
I O unit 3, control I O unit 3 access controlled device 1 by holding wire 2.
Control algolithm hard wire logic unit 5, control algolithm hard wire logic unit 5 and control it is provided with in FPGA6
I O unit 3 be attached by Standby control, detection line 4.By auxiliary between single-chip microcomputer 9 and FPGA6
Control port 7 is helped to be attached.
The sensor signal 12 that single-chip microcomputer 9 real-time reception set of cells sensor 11 passes over.Single-chip microcomputer 9 sets
There is vehicle communication port 13.
The present invention is using FPGA6 as the hardware redundancy standby system of single-chip microcomputer 9.In system operation,
When single-chip microcomputer 9 being detected or other hardware circuit breaks down, FPGA6, as standby system, connects
Manage the work relevant to functional safety, according to the operation conditions of vehicle, control battery management system and enter safety
Pattern, it is to avoid issuable accident.The present invention, using FPGA6 as standby system, utilizes FPGA6
Able to programme, the feature of fast response time, enhances the motility of system, integrated level greatly, reduces and is
The trouble point number of system.
FPGA6 is field programmable gate array, is one and contains the semiconductor equipment that can edit element,
It is available for users to the logic gate array element of on-the-spot sequencing.And battery management system is able to improve electricity
The utilization rate in pond, prevents battery from overcharge and overdischarge occur, extends the service life of battery, monitor battery
The system of state.
FPGA6 is programming device, and PLD, CPLD fall within programming device, although have difference each other
Not, but PLD, CPLD can also be used for system described in the invention.
CPLD is the logic element that a kind of conformability is higher.Owing to having high conformability, therefore it is sexual
Can promote, reliability increases, and PCB surface is long-pending to be reduced and degradation advantage under cost.PLD is general as one
Integrated circuit, device programming is determined by its logic function according to user.
Added the version of FPGA6 by single-chip microcomputer 9, refer to FPGA6 or other is able to programme
Logical device is as standby redundancy system, for improving the reliability of system, the cell tube of all this frameworks
Reason system is all in the protection domain of this patent.
The sensor signal 12 that single-chip microcomputer 9 transmits by sensor 11 being detected, controls controlled after treatment
Object 1 performs corresponding action.
Single-chip microcomputer 9 carries out the communication of data with FPGA6 in running, by the transmission phase of particular data
Detection and monitoring mutually.FPGA6 operation exception is detected, by assist control port 7 once single-chip microcomputer 9
The control of FPGA6, detection port are set to high-impedance state, and the control signal making FPGA6 is invalid, it is to avoid
The mistake output of FPGA6 causes the malfunction of controlled device.
In FPGA6 with single-chip microcomputer 9 data exchange process, when FPGA6 detects that single-chip microcomputer 9 exports number
According to time abnormal, by control algolithm hard-wired logic circuit built-in for FPGA6 by Standby control, detection line 4,
Through control I O unit 3 control controlled device.
In the present invention, single-chip microcomputer 9 and FPGA6 can be by control, testing circuit detection controlled device
The state of 1, as fallback circuit, the data of detection are transferred to single-chip microcomputer 9 by data wire 8 by FPGA6,
The detection data of main control, detection line 10 and Standby control, detection line 4 are compared by single-chip microcomputer 9, and one
The data of denier detection differ, then single-chip microcomputer 9 is by oneself state, the whole vehicle state number mutual with car load
According to, the reasonability of comprehensive analytical data, further controlled device 1 is controlled, and failure logging is existed
In nonvolatile memory, it is simple to diagnostic device diagnoses.
Owing to FPGA6 has programmable characteristic so that the function that FPGA6 is responsible for has a lot of optimization
Probability, by programming, it is easy to optimizes the function of circuit in FPGA6, along with the issue of product, need not lead to
Cross the upgrading of hardware, the purpose of the circuit that i.e. can reach to optimize hardware, greatly reduce the week of product up-gradation
Phase and expense, for focusing on the battery management system of functional safety, the system architecture described in this patent has
The strongest motility, dependable with function.
Above in conjunction with accompanying drawing, the present invention is exemplarily described, it is clear that the present invention implements not by upper
State the restriction of mode, as long as have employed the various improvement that technical solution of the present invention is carried out, or the most improved directly
It is applied to other occasion, all within protection scope of the present invention.
Claims (4)
1. the battery management system of an electric automobile, it is characterised in that: described management system is single-chip microcomputer
(9) redundancy backup structure is constituted with FPGA (6) by data wire (8)；Single-chip microcomputer (9), FPGA
(6) respectively by main control, detection line (10) and Standby control, detect line (4) Access Control I O mono-
Unit (3), control I O unit (3) by holding wire (2) access controlled device (1)；Described FPGA
(6) control algolithm hard wire logic unit (5), control algolithm hard wire logic unit (5) and control it are provided with in
I O unit (3) by Standby control, detection line (4) be attached；Described single-chip microcomputer (9) detection
During to FPGA (6) operation exception, by assist control port (7) by the control of FPGA (6), inspection
Surveying port and be set to high-impedance state, the control signal making FPGA (6) is invalid, it is to avoid the mistake of FPGA (6)
Output causes the malfunction of controlled device (1)；In FPGA (6) and single-chip microcomputer (9) data interaction
Cheng Zhong, when FPGA (6) detects single-chip microcomputer (9) output data exception, by FPGA (6)
Control algolithm hard wire logic unit (5) put by Standby control, detection line (4) through control I O unit (3)
Control controlled device (1).
The battery management system of a kind of electric automobile the most according to claim 1, it is characterised in that: institute
The sensor signal (12) that single-chip microcomputer (9) real-time reception set of cells sensor (11) stated passes over.
The battery management system of a kind of electric automobile the most according to claim 1, it is characterised in that: institute
The single-chip microcomputer (9) stated is provided with vehicle communication port (13).
The battery management system of a kind of electric automobile the most according to claim 1, it is characterised in that: institute
The FPGA (6) stated may be replaced by PLD, CPLD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410058163.5A CN103779943B (en) | 2014-02-20 | 2014-02-20 | A kind of battery management system of electric automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410058163.5A CN103779943B (en) | 2014-02-20 | 2014-02-20 | A kind of battery management system of electric automobile |
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| Publication Number | Publication Date |
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| CN103779943A CN103779943A (en) | 2014-05-07 |
| CN103779943B true CN103779943B (en) | 2016-08-17 |
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| CN201410058163.5A Active CN103779943B (en) | 2014-02-20 | 2014-02-20 | A kind of battery management system of electric automobile |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI581542B (en) | 2016-03-01 | 2017-05-01 | 財團法人工業技術研究院 | Battery management system and battery system using the same |
| CN107554338A (en) * | 2017-09-01 | 2018-01-09 | 合肥敏喆信息科技有限公司 | A kind of cell management system of electric automobile of real-time data capture |
| CN108983073A (en) * | 2018-08-03 | 2018-12-11 | 海信（山东）空调有限公司 | A kind of detection method and detection system of driving plate |
| CN109888864B (en) | 2019-02-25 | 2021-03-23 | 宁德时代新能源科技股份有限公司 | Battery management system |
| CN114497769B (en) * | 2022-01-25 | 2023-09-22 | 四川启睿克科技有限公司 | Dual-redundancy lithium battery management system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201667370U (en) * | 2009-12-28 | 2010-12-08 | 南昌大学 | Power battery management device |
| CN102279780A (en) * | 2011-06-28 | 2011-12-14 | 北京荣信慧科科技有限公司 | Control system redundancy switching method based on high speed serial communication |
| JP4922711B2 (en) * | 2006-09-22 | 2012-04-25 | オリンパスメディカルシステムズ株式会社 | Battery management system |
| CN202306237U (en) * | 2011-09-05 | 2012-07-04 | 浙江吉利汽车研究院有限公司 | Double-central processing unit (CPU) battery management system |
| CN102897165A (en) * | 2012-11-05 | 2013-01-30 | 北京经纬恒润科技有限公司 | Hybrid integrated controller |
-
2014
- 2014-02-20 CN CN201410058163.5A patent/CN103779943B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4922711B2 (en) * | 2006-09-22 | 2012-04-25 | オリンパスメディカルシステムズ株式会社 | Battery management system |
| CN201667370U (en) * | 2009-12-28 | 2010-12-08 | 南昌大学 | Power battery management device |
| CN102279780A (en) * | 2011-06-28 | 2011-12-14 | 北京荣信慧科科技有限公司 | Control system redundancy switching method based on high speed serial communication |
| CN202306237U (en) * | 2011-09-05 | 2012-07-04 | 浙江吉利汽车研究院有限公司 | Double-central processing unit (CPU) battery management system |
| CN102897165A (en) * | 2012-11-05 | 2013-01-30 | 北京经纬恒润科技有限公司 | Hybrid integrated controller |
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| CN103779943A (en) | 2014-05-07 |
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Owner name: CHERY NEW ENERGY AUTOMOBILE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SAIC CHERY AUTOMOBILE CO., LTD. Effective date: 20150703 |
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Effective date of registration: 20150703 Address after: 241000 Yijiang, Anhui Province Hua Jin Road South Applicant after: New-energy automobile Technology Co., Ltd. of Cherry Address before: 241009 Wuhu economic and Technological Development Zone, Anhui, No. 8 Changchun Road Applicant before: Saic Chery Automobile Co., Ltd. |
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Address after: 241000 No. 226 Jin Hua Nan Road, Yijiang hi tech Industrial Development Zone, Anhui, Wuhu Patentee after: Chery New Energy Automobile Co.,Ltd. Address before: 241000 flower road, Yijiang District, Anhui, Wuhu Patentee before: CHERY NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |