CN203496693U - Battery management system of electric automobile - Google Patents
Battery management system of electric automobile Download PDFInfo
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- CN203496693U CN203496693U CN201320610545.5U CN201320610545U CN203496693U CN 203496693 U CN203496693 U CN 203496693U CN 201320610545 U CN201320610545 U CN 201320610545U CN 203496693 U CN203496693 U CN 203496693U
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model provides a battery management system of an electric automobile. The battery management system of the electric automobile comprises a central processing unit, a battery assembly, a battery monitor unit, a capacitor set and a capacitor control unit, wherein the battery monitor unit is used for monitoring information of the temperature, voltage and current of the battery assembly corresponding to the battery monitor unit, and controlling charging and discharging of the battery assembly; the capacitor control unit is used for controlling charging and discharging of the capacitor set; the central processing unit is in communication with the battery monitor unit and the capacitor control unit through a first CAN bus, processes data, issues control instructions and is in communication with a control system of the whole electric automobile through a second CAN bus. According to the battery management system of the electric automobile, the charging and discharging of the battery assembly and the capacitor set are controlled and managed through the central processing unit, the battery monitor unit and the capacitor control unit, not only is the running performance of the electric automobile improved, but also the use efficiency of the battery assembly is improved.
Description
Technical field
The utility model relates to the electric system of electronlmobil, specifically relates to the pond management system of electronlmobil electricity.
Background technology
Electronlmobil is to take vehicle power as power, the vehicle of a kind of new green environment protection travelling as power driven wheel with motor.The vehicle power of electronlmobil often needs a lot of group storage batteries to carry out the permutation and combination of serial or parallel connection, with this, improves the power supply capacity of storage battery.But, electrokinetic cell is still the bottleneck of Development of Electric Vehicles at present, storage battery is because power density is on the low side, can not meet the requirement of the starting to walk continually of vehicle, acceleration and damped condition, waste too much energy owing to accelerating, cause the travelled distance of vehicle to meet the demands, frequent changes mode of operation can cause larger pulse current simultaneously, not only, to having a significant impact the service life of battery, also can affect the service efficiency of battery electric quantity, thereby affect flying power.Therefore, adopt suitable mode to control discharging and recharging of battery, avoid battery charging and discharging electric current frequent fluctuation extremely important, it affects the performance of electronlmobil to a great extent.
Utility model content
The purpose of this utility model is the problem for above-mentioned existence, and a kind of battery management system that batteries of electric automobile discharges and recharges of controlling is provided, to guarantee the electric discharge of battery stable filling.
A kind of cell management system of electric automobile that the utility model provides, comprise central process unit, battery component, battery cell monitoring unit, capacitor bank and Capacity control unit, wherein, charhing unit electric discharge to motor load to the charging of battery component and battery component, for monitoring temperature, the voltage and current information of corresponding battery component, is controlled in described battery cell monitoring unit; Described Capacity control unit is for controlling charhing unit electric discharge to motor load to the charging of capacitor bank and capacitor bank; Described central process unit, by CAN1 bus and battery cell monitoring unit and Capacity control unit communications, carries out data processing issuing control instruction, by CAN2 bus and whole-control system communication.
Preferably, described central process unit also comprises total battery detection unit, is used for detecting total voltage and the total current of described a plurality of battery components.
Preferably, described central process unit also comprises storage card, for storing the information of described battery component.
Preferably, described central process unit core is micro controller system STM32F107.
Preferably, described battery cell monitoring unit core is micro controller system STM32F103.
Preferably, described Capacity control unit core is micro controller system STM32F103.
Battery management system of the present utility model comprises battery component and capacitor bank, by central process unit and battery cell monitoring unit and Capacity control unit, the electric discharge of battery component and capacitor bank and charging are carried out to control and management, when electronlmobil starting, when needs such as acceleration grade are high-power, capacitor bank participates in electric discharge, supplement the needed power of part motor, when electronlmobil slows down, during braking, inducing current in capacitor bank absorbing circuit, reclaim energy and avoided surge of current, therefore, under same capacity battery component, both promoted the drive ability of electronlmobil, can improve the service efficiency of battery pack again, in addition, battery cell monitoring unit also detects voltage, electric current and the temperature information of battery component in real time, and central process unit be take these data as the charging and discharging state according to controlling battery, has improved the managerial ability to battery.
Accompanying drawing explanation
Fig. 1 is the overall structure block diagram of the utility model battery management system.
Fig. 2 is that the utility model battery cell monitoring unit connects battery component schematic diagram.
Fig. 3 is the schematic diagram that the utility model central process unit connects detecting unit.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1, Figure 2 and Figure 3, battery management system of the present utility model comprises central process unit, battery component, battery cell monitoring unit, capacitor bank and Capacity control unit, wherein, charhing unit electric discharge to motor load to the charging of battery component and battery component, for monitoring temperature, the voltage and current information of corresponding battery component, is controlled in described battery cell monitoring unit; Described Capacity control unit is for controlling charhing unit electric discharge to motor load to the charging of capacitor bank and capacitor bank; Described central process unit, by CAN1 bus and battery cell monitoring unit and Capacity control unit communications, carries out data processing issuing control instruction, by CAN2 bus and whole-control system communication.
Described central process unit adopts microprocessor ARM STM32F107, utilizes OSII system to do the operating system platform of central process unit, for facilitating the problem of system management and multitasking.The core of described battery cell monitoring unit and Capacity control unit all adopts microprocessor ARM STM32F103, central process unit and battery cell monitoring unit and Capacity control unit carry out data communication by CAN1 bus, and central process unit carries out communication by CAN2 bus and whole-control system.Battery cell monitoring unit can detect temperature, the voltage and current of battery component, and information is sent to central process unit, the corresponding Battery pack assembly in each battery cell monitoring unit; Battery cell monitoring unit is according to the delivering control signal of central process unit, control the coupled condition of battery component and charhing unit, the control of realization to battery component charging, and the coupled condition of controlling battery component and motor load, realize the control to battery component electric discharge work.Capacity control unit is according to the delivering control signal of central process unit, and the coupled condition of control capacitance group and charhing unit, realizes the control to capacitor bank charging, and the connection of control capacitance group and motor load, realizes the control to capacitor bank electric discharge work.Common coordination by battery cell monitoring unit and Capacity control unit is controlled, and can also realize the charging of battery component to capacitor bank.
The specific works state of electronlmobil of take illustrates as example, when electronlmobil is in startup or accelerator, central process unit controls battery component by battery cell monitoring unit and Capacity control unit and capacitor bank is discharged to motor load simultaneously, to realize larger power stage; When electronlmobil at the uniform velocity travels, control battery and discharge to motor load, steadily horsepower output; When electronlmobil slows down or brakes, control battery component and charge to capacitor bank.
In optimal way, described central process unit also comprises total battery detection unit, is used for detecting total voltage and the total current of battery component, detects after data are converted into data-signal by detecting unit and flows to central process unit.Central process unit, according to the information of the information of each divided battery assembly and total voltage and total current, can more fully be managed battery system in conjunction with the running state of electronlmobil and the information of each battery component.
In optimal way, described central process unit also comprises storage card, and storage card and central process unit carry out data communication by CAN bus.Increase after storage card, expanded the memory capacity of system, can record the continuous multidate information of battery component within a period of time, by historical data analysis, can manage better battery system.
Claims (6)
1. a cell management system of electric automobile, it is characterized in that: described battery management system comprises central process unit, battery component, battery cell monitoring unit, capacitor bank and Capacity control unit, wherein, charhing unit electric discharge to motor load to the charging of battery component and battery component, for monitoring temperature, the voltage and current information of corresponding battery component, is controlled in described battery cell monitoring unit; Described Capacity control unit is for controlling charhing unit electric discharge to motor load to the charging of capacitor bank and capacitor bank; Described central process unit, by CAN1 bus and battery cell monitoring unit and Capacity control unit communications, carries out data processing issuing control instruction, by CAN2 bus and whole-control system communication.
2. battery management system according to claim 1, is characterized in that: described central process unit also comprises total battery detection unit, is used for detecting total voltage and the total current of described a plurality of battery components.
3. battery management system according to claim 1 and 2, is characterized in that: described battery management system also comprises storage card, and storage card and described central process unit communication, for storing the information of described battery component.
4. battery management system according to claim 1 and 2, is characterized in that: described central process unit core is micro controller system STM32F107.
5. battery management system according to claim 4, is characterized in that: described battery cell monitoring unit core is micro controller system STM32F103.
6. battery management system according to claim 4, is characterized in that: described Capacity control unit core is micro controller system STM32F103.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320610545.5U CN203496693U (en) | 2013-09-30 | 2013-09-30 | Battery management system of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320610545.5U CN203496693U (en) | 2013-09-30 | 2013-09-30 | Battery management system of electric automobile |
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| Publication Number | Publication Date |
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| CN203496693U true CN203496693U (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320610545.5U Expired - Fee Related CN203496693U (en) | 2013-09-30 | 2013-09-30 | Battery management system of electric automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264303A (en) * | 2017-05-08 | 2017-10-20 | 广东硅岳能源科技有限公司 | Vehicle driving-cycle is changed into the method and system of electrokinetic cell operating condition |
| CN108258783A (en) * | 2016-12-28 | 2018-07-06 | 本田技研工业株式会社 | Power control system and power control method |
-
2013
- 2013-09-30 CN CN201320610545.5U patent/CN203496693U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108258783A (en) * | 2016-12-28 | 2018-07-06 | 本田技研工业株式会社 | Power control system and power control method |
| CN108258783B (en) * | 2016-12-28 | 2022-01-14 | 本田技研工业株式会社 | Power supply control system and power supply control method |
| CN107264303A (en) * | 2017-05-08 | 2017-10-20 | 广东硅岳能源科技有限公司 | Vehicle driving-cycle is changed into the method and system of electrokinetic cell operating condition |
| CN107264303B (en) * | 2017-05-08 | 2020-03-17 | 广东硅岳能源科技有限公司 | Method and system for converting vehicle running condition into power battery running condition |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20180930 |