CN101552361A - Electric automobile power battery charging maintenance method and device - Google Patents
Electric automobile power battery charging maintenance method and device Download PDFInfo
- Publication number
- CN101552361A CN101552361A CNA2009101386554A CN200910138655A CN101552361A CN 101552361 A CN101552361 A CN 101552361A CN A2009101386554 A CNA2009101386554 A CN A2009101386554A CN 200910138655 A CN200910138655 A CN 200910138655A CN 101552361 A CN101552361 A CN 101552361A
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- charging
- charger
- battery
- power battery
- electric automobile
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- 238000012423 maintenance Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004891 communication Methods 0.000 claims description 4
- 239000011449 brick Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 241000156302 Porcine hemagglutinating encephalomyelitis virus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004088 simulation Methods 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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The invention relates to an electric automobile power battery charging maintenance method and device, capable of performing effective maintenance when charging the power battery. The electric automobile power battery charging maintenance method is characterized in that: a charging control unit obtains the power battery state information from an automobile battery management unit BMS and controls the charging current of the power battery based on the power battery state information.
Description
Technical field
The present invention relates to a kind of electric automobile power battery charging maintenance method and device.
Background technology
Electric automobile power battery charging adopts onboard charger, can realize that battery charges at a slow speed, the onboard charger input voltage adopts alternating current 220V/16A, capacity according to battery, charging interval is generally greater than 4 hours, traditional charging maintenance method adopts charger directly to be connected with the power brick both positive and negative polarity, in charging process, do not need the collection plate work in battery management system and the power brick,, transfer constant current charge to when battery reaches setting voltage, in the whole charging process, do not monitor battery cell voltage, might cause battery cell to be overcharged, after battery is full of electricity, charger just reduces charging current and can not stop charging, damages the battery cell performance.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of electric automobile power battery charging maintenance method and device, when power battery charging, can realize effective maintenance.
The present invention is based on same inventive concept, have two independent technique schemes:
1, a kind of electric automobile power battery charging maintenance method, it is characterized in that: be provided with charging control unit, charging control unit is obtained the electrokinetic cell state information from automobile batteries administrative unit BMS, according to the electrokinetic cell state information, charging control unit control charger is to the charging current size of electrokinetic cell.
Said electrokinetic cell state information comprises SOC value of battery, battery temperature, battery cell voltage.
When SOC value of battery was low, charging control unit control charger charged with maximum charging current.
When SOC value of battery was higher, charging control unit control charger reduced charging current.
When battery cell voltage or battery temperature surpassed the safety value that allows, charging control unit stopped to power battery charging charger.
Charger can directly provide power supply for collection plate in automobile batteries administrative unit BMS, the electrokinetic cell bag.
2, a kind of device of realizing claim 1 electric automobile power battery charging maintenance method, has charger, it is characterized in that: be provided with the charging control unit of may command charger charging current, communication is connected this charging control unit with the charger difference with automobile batteries administrative unit BMS.
Charger is provided with the power interface that can directly power for collection plate in automobile batteries administrative unit BMS, the electrokinetic cell bag.
The beneficial effect that the present invention has:
The present invention under unattended situation, also can realize the charge maintenance to electrokinetic cell applicable to pure electric automobile and plug-in type PHEV electric automobile.Charger of the present invention has the power interface of directly powering for collection plate in automobile batteries administrative unit BMS, the electrokinetic cell bag, can realize battery system work, and whole-control system is closed, reduce power consumption to greatest extent, also can avoid long-time charging simultaneously, cause the generation of 12V lead-acid battery feed situation.
Description of drawings
Fig. 1 is a circuit structure block diagram of the present invention;
Fig. 2 is an operation principle block diagram of the present invention.
Embodiment
As shown in Figure 1, be provided with the charging control unit of may command charger charging current, this charging control unit is connected with automobile batteries administrative unit BMS communication.
As shown in Figure 2, charger is provided with the power interface that can directly power for collection plate in automobile batteries administrative unit BMS, the electrokinetic cell bag.
Charging control unit is obtained the electrokinetic cell state information from automobile batteries administrative unit BMS, battery status information comprises SOC value of battery, battery temperature, battery cell voltage, according to the electrokinetic cell state information, charging control unit control charger is to the charging current size of electrokinetic cell.When battery SOC is low; the control charger charges with maximum charging current; when SOC is higher; reduce battery charge; if in charging process; find that battery cell maximum temperature or battery cell ceiling voltage surpass the safety value that battery allows, charging control unit stops to power battery charging charger, realizes the protection to battery.
Charger can directly provide power supply for collection plate in automobile batteries administrative unit BMS, the electrokinetic cell bag.The automobile controller power supply interface comprises that 12V often, ignition signal and earth signal, when car key is screwed to " ON " position, controller works on power beginning, when key is screwed to " OFF " position, controller can't quit work immediately, but time-delay a period of time quits work again, charger provided by the invention has " 12V " power supply output, simulation firing key signal " Igination_Charge " signal, when the needs charge maintenance, the operator takes out firing key, and press switch, select " charge mode ", and connect the charger power supply, controllers such as BMS and collection plate are started working, and other controller can not be worked in the car, realized battery system work, and whole-control system is closed, reduce power consumption to greatest extent, can avoid long-time charging, cause the generation of car load 12V lead-acid battery feed situation.
Charging device provided by the invention comprises high voltage interface (being connected with negative terminal with the power brick anode), low-voltage interface (CAN communication signal line, 12V power line, ground wire, wake-up signal) with the interface of car load, for realizing the integrated of charger and car load, need one No. three selector switch, realize the conversion of " charge mode " and " driving pattern ".
Claims (8)
1, a kind of electric automobile power battery charging maintenance method, it is characterized in that: be provided with charging control unit, charging control unit is obtained the electrokinetic cell state information from automobile batteries administrative unit BMS, according to the electrokinetic cell state information, charging control unit control charger is to the charging current size of electrokinetic cell.
2, electric automobile power battery charging maintenance method according to claim 1 is characterized in that: said electrokinetic cell state information comprises SOC value of battery, battery temperature, battery cell voltage.
3, electric automobile power battery charging maintenance method according to claim 2 is characterized in that: when SOC value of battery was low, charging control unit control charger charged with maximum charging current.
4, electric automobile power battery charging maintenance method according to claim 3 is characterized in that: when SOC value of battery was higher, charging control unit control charger reduced charging current.
5, electric automobile power battery charging maintenance method according to claim 4 is characterized in that: when battery cell voltage or battery temperature surpassed the safety value that allows, charging control unit stopped to power battery charging charger.
6, electric automobile power battery charging maintenance method according to claim 5 is characterized in that: charger can directly provide power supply for collection plate in automobile batteries administrative unit BMS, the electrokinetic cell bag.
7, a kind of device of realizing claim 1 electric automobile power battery charging maintenance method, has charger, it is characterized in that: be provided with the charging control unit of may command charger charging current, communication is connected this charging control unit with the charger difference with automobile batteries administrative unit BMS.
8, the device of realization electric automobile power battery charging maintenance method according to claim 7 is characterized in that: charger is provided with the power interface that can directly power for collection plate in automobile batteries administrative unit BMS, the electrokinetic cell bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101386554A CN101552361A (en) | 2009-05-12 | 2009-05-12 | Electric automobile power battery charging maintenance method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101386554A CN101552361A (en) | 2009-05-12 | 2009-05-12 | Electric automobile power battery charging maintenance method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101552361A true CN101552361A (en) | 2009-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101386554A Pending CN101552361A (en) | 2009-05-12 | 2009-05-12 | Electric automobile power battery charging maintenance method and device |
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| Country | Link |
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| CN (1) | CN101552361A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752620B (en) * | 2009-12-23 | 2012-02-15 | 奇瑞汽车股份有限公司 | Vehicle-mounted lithium battery charging system |
| CN102447276A (en) * | 2010-10-08 | 2012-05-09 | 中山市浩成自动化设备有限公司 | Self-adaptation charging system and method based on CAN (Controller Area Network)-bus |
| CN105207302A (en) * | 2015-10-19 | 2015-12-30 | 西安特锐德智能充电科技有限公司 | Flexible charging method and charger of electric car |
| CN105429238A (en) * | 2015-12-30 | 2016-03-23 | 青岛特来电新能源有限公司 | Hybrid electric vehicle flexible charging system and charging method |
| CN106042960A (en) * | 2016-06-08 | 2016-10-26 | 西安特锐德智能充电科技有限公司 | Device and method for judging battery charging abnormality according to battery characteristic value variation |
| CN106364349A (en) * | 2016-10-08 | 2017-02-01 | 北京新能源汽车股份有限公司 | Charging control method and device for electric automobile, and electric automobile |
| CN110733372A (en) * | 2019-10-21 | 2020-01-31 | 宝能(广州)汽车研究院有限公司 | Vehicle and electric vehicle control method and control device |
-
2009
- 2009-05-12 CN CNA2009101386554A patent/CN101552361A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752620B (en) * | 2009-12-23 | 2012-02-15 | 奇瑞汽车股份有限公司 | Vehicle-mounted lithium battery charging system |
| CN102447276A (en) * | 2010-10-08 | 2012-05-09 | 中山市浩成自动化设备有限公司 | Self-adaptation charging system and method based on CAN (Controller Area Network)-bus |
| CN105207302A (en) * | 2015-10-19 | 2015-12-30 | 西安特锐德智能充电科技有限公司 | Flexible charging method and charger of electric car |
| CN105429238A (en) * | 2015-12-30 | 2016-03-23 | 青岛特来电新能源有限公司 | Hybrid electric vehicle flexible charging system and charging method |
| CN106042960A (en) * | 2016-06-08 | 2016-10-26 | 西安特锐德智能充电科技有限公司 | Device and method for judging battery charging abnormality according to battery characteristic value variation |
| CN106364349A (en) * | 2016-10-08 | 2017-02-01 | 北京新能源汽车股份有限公司 | Charging control method and device for electric automobile, and electric automobile |
| CN106364349B (en) * | 2016-10-08 | 2019-01-29 | 北京新能源汽车股份有限公司 | A kind of charge control method of electric car, device and electric car |
| CN110733372A (en) * | 2019-10-21 | 2020-01-31 | 宝能(广州)汽车研究院有限公司 | Vehicle and electric vehicle control method and control device |
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| PB01 | Publication | ||
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Application publication date: 20091007 |