CN101093902A - Multiple step type battery control system in use for hybrid powered car - Google Patents
Multiple step type battery control system in use for hybrid powered car Download PDFInfo
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- CN101093902A CN101093902A CNA2007100291420A CN200710029142A CN101093902A CN 101093902 A CN101093902 A CN 101093902A CN A2007100291420 A CNA2007100291420 A CN A2007100291420A CN 200710029142 A CN200710029142 A CN 200710029142A CN 101093902 A CN101093902 A CN 101093902A
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- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000012544 monitoring process Methods 0.000 claims description 10
- 239000000178 monomer Substances 0.000 claims description 8
- 238000013461 design Methods 0.000 description 8
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 229910018095 Ni-MH Inorganic materials 0.000 description 3
- 229910018477 Ni—MH Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
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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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Abstract
The control system includes battery control module (BCM) and battery signal collection module (BSCM). BSCM collects signals of voltage and temperature of single battery, and implements data processing. The processed data are sent to BCM. Reducing wires for connecting single battery to the battery controller, the invention can monitor voltage and temperature of single battery precisely in all its aspects, and reduces workload of central processor in the battery control system.
Description
Technical field
The present invention relates to electric automobile or hybrid power automobile battery control system, signals such as the voltage of battery pack, temperature are implemented to gather in real time and handle.
Background technology
The electrokinetic cell that hybrid vehicle or pure electric automobile adopt is composed in series by a plurality of battery cells.In the use of battery, battery control or title control system must be gathered voltage, the temperature of battery cell in real time.Traditional way is to adopt the centralized control method, be battery control system obtains battery cell by many signal wire harness voltage and temperature value, increase along with battery cell quantity, need battery controller that more interface resource is provided, increase a large amount of wire harness simultaneously, also increased the difficulty of battery cell failure diagnosis.
Hybrid-power battery generally adopts Ni-MH battery and lithium ion battery, and Ni-MH battery is used wider, and main advantage is that price is low, safe, technology maturation; And lithium ion battery is mainly used in environment preferably such as notebook computer or mobile phone, be used for fail safe and economy that motor vehicle driven by mixed power must improve lithium ion battery, for improving the fail safe of lithium ion battery, require battery cell voltage and temperature must keep strict consistency, adopting the centralized control method that automobile-used lithium ion battery is implemented management is difficult to guarantee technically
Existing Ni-MH battery control system adopts centralized solution, as shown in Figure 1, centralized solution is meant and adopts collection and battery performance prediction and the control of block controller realization to multiple signals, the mode of scan-type that adopts centralized battery control controller realizes the AD signal processing to multichannel analog signals, can not be at synchronization, realize the collection of plurality of voltages signal, when change in voltage fluctuates when very fast, bigger inconsistency will appear in the battery acquired signal, and influence is to the conforming prediction of battery performance.
In the battery charge and discharge process, battery control system need be gathered the voltage of battery cell and the temperature of battery pack, with monitoring battery cell harmony, prediction battery performance and battery capacity, if these analog signals all input to battery control controller, consuming cells is controlled many hardware resources of controller, increase the load of control chip.When certain battery broke down, searched the location that also is not easy to the attendant; Fig. 1 is now centralized battery control system, battery management controller and battery cell signal connection layout, as shown in Figure 1, centralized battery control system electric interfaces needs a large amount of connection wire harness, too much voltage signal acquisition wire harness 2 and temperature signal collection wire harness 1 are set, the wire harness increase not only increased the difficulty of battery maintenance, and increased the difficulty of battery air channel design, owing to can take the space in air channel.
Summary of the invention
Purpose of the present invention just provides a kind of multiple step type battery control system that is used for hybrid vehicle, by adopting a plurality of battery acquisition modules, realized real-time signal acquisition such as voltage, temperature to battery pack and will handle after data issue the battery control module, improve battery operated fail safe and reliability.
For achieving the above object, the multiple step type battery control system that is used for hybrid vehicle provided by the invention comprises: battery control module and battery signal acquisition module, the battery signal acquisition module is implemented voltage and the selection of temperature signal and the data processing of battery cell, handles the back data and issues the battery control module.
The distributed battery control system of the present invention's design, reduced the rat tail of battery cell and battery control controller, each acquisition module is responsible for the collection and the data processing of a Battery pack monomer temperature and voltage, and the data after will handling are issued the battery control module.
The distributed battery control system of the present invention's design, can monitor the temperature and the voltage of battery cell all-sidedly and accurately, when the temperature that monitors certain battery cell temperature or voltage and other monomer or voltage occur tangible when inconsistent, the battery control module can be reported the sequence number and the diagnostic trouble code of this battery cell, and the handled easily person in time finds the fault of battery cell.Each battery acquisition module is issued battery control controller by internal bus with battery data, has not only reduced a large amount of wire harness, has reduced the live load of battery control system central processing unit.
Summary of drawings
Fig. 1 is the battery control controller and the battery cell signal connection layout of centralized battery control system in the prior art.
Fig. 2 is a control system block diagram of the present invention;
Fig. 3 is a battery status monitoring form of the present invention;
Fig. 4 is the change curve of battery voltage and time.
Embodiment
As shown in Figure 2, the distributed battery control system of the present invention's design is made up of 1 battery control module 10 and several battery signal acquisition modules 20, battery control module 10 can be considered the interface of battery body and entire car controller, have control battery charging and discharging work, monitoring battery status, with function such as entire car controller communication.Battery signal acquisition module 20 is implemented voltage and the selection of temperature signal and the data processing of battery cell 30, handles the back data and issues battery control module 10.
Battery control system need be gathered the coherent signals such as import and export temperature in monomer battery voltage, battery pack temperature, bus voltage, bus current and air channel.
The distributed battery control system of the present invention's design, reduced the rat tail of battery cell and battery control controller, each battery signal acquisition module 20 is responsible for the collection and the data processing of a Battery pack monomer 30 temperature and voltage, and the data after will handling are issued the battery control module.
The distributed battery control system of the present invention's design, can monitor the temperature and the voltage of battery cell 30 all-sidedly and accurately, when the temperature that monitors certain battery cell temperature or voltage and other monomer or voltage occur tangible when inconsistent, battery control module 10 can be reported the sequence number and the diagnostic trouble code of this battery cell, and the handled easily person in time finds the fault of battery cell.
Use internal bus to realize the communication of battery control module and signal acquisition module among the present invention, this design has reduced the interface and the hardware resource of battery control module.Especially reduced battery control module hardware interface resources, reduced battery control controller and handled the load that modulus signal is changed.
The present invention's time sampling to the plurality of voltages signal, sampling can provide the accuracy of battery control system prediction battery performance in the time of to each road voltage signal.
Provided the annexation of distributed battery control system battery pack, battery signal acquisition module 20 and battery control module 10 among Fig. 2.
The electrokinetic cell bag is composed in series by several battery pack, battery pack is composed in series by several battery cells 30, a battery signal acquisition module 20 is gathered the temperature and the monomer voltage of a Battery pack monomer 30, these data that collect are issued the battery control module by internal bus after handling through signal acquisition module.
Battery signal acquisition module 20 has defined the sequence number of each battery cell, has defined following several faults in the mode of diagnostic trouble code:
000: normal condition;
001: compare with other battery cell, this battery cell voltage is obviously higher;
010: compare with other battery cell, this battery cell voltage is obviously on the low side;
011: compare with other battery cell, this battery cell temperature is obviously on the low side;
100: compare with other battery cell, this battery cell temperature is obviously higher;
In conjunction with Fig. 3, battery signal acquisition module 20 is the temperature and the voltage of each battery cell 30 relatively, and diagnostic trouble code is write in the battery status monitoring form, and the monitoring form that will comprise battery status is issued battery control module 10.
As shown in Figure 4, when change in voltage is very fast, if acquisition system is not to gather voltage signal at synchronization, the consistency of the battery voltage that can not judge rightly, thereby the fault of appearance prediction battery performance.
The scheme of the present invention design has adopted the malfunction monitoring table to realize definition to each battery cell 30 states, when certain battery cell 30 breaks down, battery signal acquisition module 20 can be issued entire car controller with the sequence number of this battery cell 30 and conditional code or show on vehicle-carrying display screen, is convenient to the operator and finds fault, timely battery maintenance as early as possible.
The present invention has improved the conforming accuracy of battery control system prediction battery cell, adopts distributed schemes to realize in the collection of synchronization to each road voltage signal.
Claims (4)
1, a kind of multiple step type battery control system that is used for hybrid vehicle, it is characterized in that: system comprises battery control module (10) and battery signal acquisition module (20), battery signal acquisition module (20) is implemented voltage and the selection of temperature signal and the data processing of battery cell (30), handles the back data and issues battery control module (10).
2, the multiple step type battery control system that is used for hybrid vehicle according to claim 1 is characterized in that: described each battery signal acquisition module (20) is gathered the temperature of a Battery pack monomer (30) and voltage signal and it is handled.
3, the multiple step type battery control system that is used for hybrid vehicle according to claim 1 and 2 is characterized in that: connect by inner can bus between described battery control module (10) and the battery signal acquisition module (20).
4, the multiple step type battery control system that is used for hybrid vehicle according to claim 3 is characterized in that: described battery signal acquisition module (20) is done following processing to the definition of each battery cell (30) implementation sequence and to it:
Normal condition;
Compare with other battery cell, this battery cell voltage is obviously higher;
Compare with other battery cell, this battery cell voltage is obviously on the low side;
Compare with other battery cell, this battery cell temperature is obviously on the low side;
Compare with other battery cell, this battery cell temperature is obviously higher;
The battery acquisition module is the temperature and the voltage of each battery cell relatively, and diagnostic trouble code is write in the battery status monitoring form, and the monitoring form that will comprise battery status is issued the battery control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100291420A CN101093902A (en) | 2007-07-12 | 2007-07-12 | Multiple step type battery control system in use for hybrid powered car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100291420A CN101093902A (en) | 2007-07-12 | 2007-07-12 | Multiple step type battery control system in use for hybrid powered car |
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| CN101093902A true CN101093902A (en) | 2007-12-26 |
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| CNA2007100291420A Pending CN101093902A (en) | 2007-07-12 | 2007-07-12 | Multiple step type battery control system in use for hybrid powered car |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623761A (en) * | 2011-01-28 | 2012-08-01 | 比亚迪股份有限公司 | Battery management system and management method thereof |
| CN105977555A (en) * | 2016-05-25 | 2016-09-28 | 力神动力电池系统有限公司 | Modular battery pack system |
| 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 |
| CN107482257A (en) * | 2016-10-21 | 2017-12-15 | 宝沃汽车（中国）有限公司 | Monitoring method, system and the vehicle of electrokinetic cell |
| CN112054259A (en) * | 2020-08-21 | 2020-12-08 | 安徽江淮汽车集团股份有限公司 | Acquisition harness fault detection method and device, electronic equipment and storage medium |
| CN114072310A (en) * | 2019-07-31 | 2022-02-18 | 株式会社Lg新能源 | Apparatus and method for predicting battery state |
-
2007
- 2007-07-12 CN CNA2007100291420A patent/CN101093902A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623761A (en) * | 2011-01-28 | 2012-08-01 | 比亚迪股份有限公司 | Battery management system and management method thereof |
| CN102623761B (en) * | 2011-01-28 | 2015-02-04 | 比亚迪股份有限公司 | Battery management system and management method thereof |
| 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 |
| CN105977555A (en) * | 2016-05-25 | 2016-09-28 | 力神动力电池系统有限公司 | Modular battery pack system |
| CN105977555B (en) * | 2016-05-25 | 2018-08-21 | 力神动力电池系统有限公司 | A kind of modular battery pack system |
| CN107482257A (en) * | 2016-10-21 | 2017-12-15 | 宝沃汽车（中国）有限公司 | Monitoring method, system and the vehicle of electrokinetic cell |
| CN114072310A (en) * | 2019-07-31 | 2022-02-18 | 株式会社Lg新能源 | Apparatus and method for predicting battery state |
| CN114072310B (en) * | 2019-07-31 | 2024-01-23 | 株式会社Lg新能源 | Apparatus and method for predicting battery state |
| CN112054259A (en) * | 2020-08-21 | 2020-12-08 | 安徽江淮汽车集团股份有限公司 | Acquisition harness fault detection method and device, electronic equipment and storage medium |
| CN112054259B (en) * | 2020-08-21 | 2021-09-28 | 安徽江淮汽车集团股份有限公司 | Acquisition harness fault detection method and device, electronic equipment and storage medium |
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