CN202121336U - Electric automobile battery management system - Google Patents
Electric automobile battery management system Download PDFInfo
- Publication number
- CN202121336U CN202121336U CN2011201791295U CN201120179129U CN202121336U CN 202121336 U CN202121336 U CN 202121336U CN 2011201791295 U CN2011201791295 U CN 2011201791295U CN 201120179129 U CN201120179129 U CN 201120179129U CN 202121336 U CN202121336 U CN 202121336U
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- electric automobile
- management system
- charging
- relay
- high voltage
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model relates to the battery management field, and especially relates to a stroke increasing electric automobile battery management system. The system includes a main control circuit, a charging control circuit, a discharging control circuit, and the like, which are connected with the main control circuit. The system also includes a display module used to display the condition of a charging device and a communication circuit used to communicate with an entire automobile controller. The charging control circuit includes three relays used for the selection of a charging mode. One contact end of the relay is connected with the anode of a high voltage power battery pack, and the other contact end is connected with an external charging interface. A control end of the relay is connected with a combination switch, and the switching of the high voltage power battery pack charging mode is realized by the control of the combination switch. Through arranging a charging mode selection switch, different charging modes can be selected according to different charging devices, and consequently a high voltage battery pack of an electric automobile can be charged by various charging devices, and the timely parking overhaul under dangerous and fault conditions can also be realized. The electric automobile battery management system has the advantages of convenience of use and installation, safety, and reliability.
Description
Technical field
The utility model relates to the battery management technical field, specifically is meant a kind of stroke-increasing electric automobile battery management system.
Background technology
Stroke-increasing electric automobile adopts the high-tension battery group as power, and energy-conserving and environment-protective are inexorable trends of Future Social Development.But there is following shortcoming in the management system (BMS) of traditional electric automobile high-tension battery group: (1) because each manufacturer designs difference, a kind of electric automobile high-tension battery group generally can only be accepted a kind of charging device and charging modes, poor compatibility; (2) BMS and high-tension battery component are installed inconvenience from being provided with, and rain high-tension battery group is not reasonably isolated during installation, has potential safety hazard; (3) do not have artificial maintenance function, like car under steam, the driver finds that car has fault, can't take the measure of stopping timely and effectively.
Summary of the invention
The utility model technical problem to be solved provide a kind of and high-tension battery group integrated, compatible multiple charging device and safe and reliable cell management system of electric automobile.
For solving the problems of the technologies described above; The utility model adopts following technical scheme to realize: a kind of cell management system of electric automobile; Comprise governor circuit and connected charging control circuit; Said charging control circuit comprises a plurality of switching devices that charge mode is selected that are used for, and said switching device one end is parallel to the high voltage power battery anode, and the other end is connected with the external charging interface respectively; Said switching device control end connects a unit switch, receives unit switch control to realize the switching of high voltage power batteries charging pattern.
Further, said cell management system of electric automobile also comprises the display module that is used to show current charge mode charging device, and said display module is connected with governor circuit.
Further, said cell management system of electric automobile comprises also and is used for the communicating circuit that is connected with entire car controller that said communicating circuit is connected with governor circuit.
Said cell management system of electric automobile is integrated in the electric automobile high voltage power battery case, and high voltage power battery case inwall is pasted with insulating barrier.Said insulating barrier is two-layer.
Compared with prior art; The beneficial effect of the utility model is: (1) is provided with the charge mode selector switch; Corresponding different charging devices can be selected different charge modes, make electric automobile high-tension battery group can accept multiple charging device charging, and are easy to use flexible; (2) communication interface and entire car controller communication are set, can realize timely parking maintenance under fault and the dangerous situation; (3) the integrated and effective insulation of battery management system and high-tension battery group is isolated, and is easy for installation, safe and reliable.
Description of drawings
Fig. 1 is a cell management system of electric automobile theory of constitution schematic block diagram.
Embodiment
Below will combine accompanying drawing and embodiment that the utility model is explained in further detail for the ease of it will be appreciated by those skilled in the art that.
The cell management system of electric automobile that the utility model disclosed comprises governor circuit and connected charging control circuit, charge/discharge control circuit, current detection circuit, communicating circuit etc., also comprises display module.
Among the embodiment; Charging control circuit comprises that three are used for relay K 1, K2, the K3 that charge mode is selected; Three relay one tip sides are connected with the high voltage power battery anode respectively; Another tip side is connected with the external charging interface respectively, and the relay control end connects a unit switch K0, receives unit switch K0 control to realize the switching of high voltage power batteries charging pattern.
Charge/discharge control circuit comprises first relay K 4 and second relay K 5 that is connected with high voltage power battery pack positive and negative electrode respectively, and said second relay K 5 and first relay K 4 receive governor circuit control to connect discharge loop and realize the high voltage power battery power discharge.Governor circuit is respectively through the 3rd relay K 6 and the 4th relay K 7 control first relay and second relay on-offs.Charge circuit also can receive 5 controls of second relay K simultaneously.
Display module is used to show current charge mode charging device, and display module can directly adopt instrument on the car, and instrument on said system master circuit and the car is connected, and control instrument shows charge information.
Communicating circuit is used for the governor circuit and the entire car controller communication of said system, transmits the information that discharges and recharges of high-tension battery group.When car under steam; The driver finds that car has fault; Can be by emergent inspection switch, entire car controller receiving key signal can pass to the governor circuit of said cell management system of electric automobile with information through the CAN1 bus, but governor circuit cutoff high battery power discharge loop; Let car cut off the power supply automatically, slowly ramp to stop maintenance.
In the battery management system circuit of present embodiment; Between the high voltage power battery pack negative pole and second relay, be in series with current sensor; Its induction charging and discharging circuit current signal passes to governor circuit, overcurrent condition occurs and can in time cut off charging and discharging circuit, guarantees safety.Fuse also is set before current sensor in addition, can avoids the damage of instantaneous large-current system and high-tension battery group.
Native system has all basic functions of general BMS, and for example high-tension battery group overvoltage, under-voltage or monomer reach set point, will send alarm signal and control relay and cut off discharge loop, prevents the battery case output voltage, influences the life-span and the performance of battery pack; The protection battery pack prevents super-charge super-discharge.
Said cell management system of electric automobile is integrated in the electric automobile high voltage power battery case; High voltage power battery case inwall is pasted with insulating barrier; Insulating barrier is close to the battery case inwall, effectively prevents in use because of vibration is shifted, for reaching better insulation effect; Insulating barrier can be provided with multilayer, as is provided with two-layer.
The foregoing description is the preferred version that the utility model is realized; And indefiniteness is exhaustive; The utility model can also have other variations under same idea; Need to prove that do not breaking away under the utility model design prerequisite, any conspicuous replacement and minor variations are all within the protection range of the utility model.
Claims (9)
1. cell management system of electric automobile; Comprise governor circuit and connected charging control circuit, it is characterized in that said charging control circuit comprises a plurality of switching devices that charge mode is selected that are used for; Said switching device one end is parallel to the high voltage power battery anode; The other end is connected with the external charging interface respectively, and said switching device control end connects a unit switch, receives unit switch control to realize the switching of high voltage power batteries charging pattern.
2. cell management system of electric automobile according to claim 1 is characterized in that: also comprise the display module that is used to show current charge mode charging device, said display module is connected with governor circuit.
3. cell management system of electric automobile according to claim 2 is characterized in that: also comprise being used for the communicating circuit that is connected with entire car controller, said communicating circuit is connected with governor circuit.
4. cell management system of electric automobile according to claim 3; It is characterized in that: also comprise charge/discharge control circuit; Said charge/discharge control circuit comprises first relay and second relay that is connected with high voltage power battery pack positive and negative electrode respectively, and said second relay and first relay receive governor circuit control to connect discharge loop and realize the high voltage power battery power discharge.
5. cell management system of electric automobile according to claim 4 is characterized in that: said governor circuit is controlled first relay and second relay on-off through the 3rd relay and the 4th relay respectively.
6. cell management system of electric automobile according to claim 5 is characterized in that: also comprise current sensor, between its series connection and the high voltage power battery pack negative pole and second relay, induction charging and discharging circuit current signal passes to governor circuit.
7. according to any described cell management system of electric automobile among the claim 1-6, it is characterized in that: said cell management system of electric automobile is integrated in the electric automobile high voltage power battery case.
8. cell management system of electric automobile according to claim 7 is characterized in that: said electric automobile high voltage power battery case inwall is pasted with insulating barrier.
9. cell management system of electric automobile according to claim 8 is characterized in that: said insulating barrier is two-layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201791295U CN202121336U (en) | 2011-05-31 | 2011-05-31 | Electric automobile battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201791295U CN202121336U (en) | 2011-05-31 | 2011-05-31 | Electric automobile battery management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202121336U true CN202121336U (en) | 2012-01-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201791295U Expired - Fee Related CN202121336U (en) | 2011-05-31 | 2011-05-31 | Electric automobile battery management system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202121336U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104253452A (en) * | 2013-06-27 | 2014-12-31 | 盛世铸成科技(北京)有限公司 | Wireless charging system |
| CN104583018A (en) * | 2012-08-30 | 2015-04-29 | 宝马股份公司 | Charge transfer function in the event of failed starting |
| CN105103000A (en) * | 2013-03-28 | 2015-11-25 | 罗伯特·博世有限公司 | Arrangement for monitoring battery condition |
| CN105656148A (en) * | 2016-03-21 | 2016-06-08 | 杭州骑客智能科技有限公司 | Battery management system of man-machine interaction sport car |
| CN105680519A (en) * | 2016-03-21 | 2016-06-15 | 杭州骑客智能科技有限公司 | Battery management system for man-machine interaction sport car |
| CN107181289A (en) * | 2016-03-10 | 2017-09-19 | 肖华军 | Modularization intelligent battery management system |
-
2011
- 2011-05-31 CN CN2011201791295U patent/CN202121336U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104583018A (en) * | 2012-08-30 | 2015-04-29 | 宝马股份公司 | Charge transfer function in the event of failed starting |
| US10246035B2 (en) | 2012-08-30 | 2019-04-02 | Bayerische Motoren Werke Aktiengesellschaft | Charge transfer function in the event of failed starting |
| CN105103000A (en) * | 2013-03-28 | 2015-11-25 | 罗伯特·博世有限公司 | Arrangement for monitoring battery condition |
| CN104253452A (en) * | 2013-06-27 | 2014-12-31 | 盛世铸成科技(北京)有限公司 | Wireless charging system |
| CN107181289A (en) * | 2016-03-10 | 2017-09-19 | 肖华军 | Modularization intelligent battery management system |
| CN105656148A (en) * | 2016-03-21 | 2016-06-08 | 杭州骑客智能科技有限公司 | Battery management system of man-machine interaction sport car |
| CN105680519A (en) * | 2016-03-21 | 2016-06-15 | 杭州骑客智能科技有限公司 | Battery management system for man-machine interaction sport car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20190531 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |