CN204354964U - A kind of cutting electricity in collision of electric automobile protection system - Google Patents
A kind of cutting electricity in collision of electric automobile protection system Download PDFInfo
- Publication number
- CN204354964U CN204354964U CN201420845224.8U CN201420845224U CN204354964U CN 204354964 U CN204354964 U CN 204354964U CN 201420845224 U CN201420845224 U CN 201420845224U CN 204354964 U CN204354964 U CN 204354964U
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- management unit
- battery management
- safety air
- controller
- collision
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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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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model relates to vehicle technology field, particularly relates to a kind of cutting electricity in collision of electric automobile protection system.It comprises battery management unit, power battery pack, full-vehicle control unit, safety air sac controller, vehicle body crash sensor and car body controller, battery management unit, full-vehicle control unit, to be connected by CAN between safety air sac controller and car body controller, safety air sac controller is also connected by wire with between battery management unit, car body controller, safety air sac controller is connected by wire with vehicle body crash sensor, and battery management unit is connected by wire with power battery pack.The utility model can receive three kinds of signal types sent by safety air bag simultaneously: CAN signal, current in wire signal, wireless signal.When receiving arbitrary signal, these control units relevant to collision all can realize the passive security safeguard procedures of vehicle, improve the reliability and stability of cutting electricity in collision.
Description
Technical field
The utility model relates to vehicle technology field, particularly relates to a kind of cutting electricity in collision of electric automobile protection system.
Background technology
How promoting electronlmobil safety is that electronlmobil promotes a problem demanding prompt solution." after electric automobile collision safety requirements " paper for approval also proposes stricter requirement to the reliability and stability of electric automobile collision safety.In the cutting electricity in collision protection system of electronlmobil; battery management unit and other full-vehicle control unit only receive the CAN signal that safety air bag sends; and often in collision process due to the damage of car load CAN or long; the signal or receiving signal delayed that battery management system and other full-vehicle control unit can be caused cannot to receive safety air bag send; battery management unit and other full-vehicle control unit cannot normally perform associated safety Preservation tactics, and cause casualty accident.
Utility model content
The purpose of this utility model is to provide a kind of cutting electricity in collision of electric automobile protection system.Which increase the signalling methods type between safety air sac controller each control unit relevant to car load and collision safety, improve the reliability and stability of cutting electricity in collision of electric automobile protection system.
The technical solution of the utility model is: a kind of cutting electricity in collision of electric automobile protection system, comprise battery management unit, power battery pack, full-vehicle control unit, safety air sac controller, vehicle body crash sensor and car body controller, described battery management unit, full-vehicle control unit, safety air sac controller, and connected by CAN between car body controller, between described safety air sac controller and battery management unit, described safety air sac controller is also connected by wire with between car body controller, described safety air sac controller is connected by wire with vehicle body crash sensor, described battery management unit is connected by wire with power battery pack, the output of described power battery pack is connected with the normally open contact of major loop relay, the drived control mouth of battery management unit connects major loop relay coil.
Further, wireless communication module is provided with in described battery management unit, full-vehicle control unit, safety air sac controller and car body controller.
Further, described battery management unit is also connected with battery crash sensor by wire.
The beneficial effects of the utility model are: in cutting electricity in collision protection system of the present invention, and battery management unit, full-vehicle control unit, car body controller can receive three kinds of signal types sent by safety air bag simultaneously: CAN signal, current in wire signal, wireless signal.When receiving arbitrary signal, these control units relevant to collision all can realize the passive security safeguard procedures of vehicle.Adopt this system, even if in electronlmobil generation severe crash fault, under the condition that CAN Bus in Electric and wire are all cut off, battery management unit, full-vehicle control unit, also to communicate by wireless signal between car body controller with safety air sac controller, which improves the reliability and stability of cutting electricity in collision.When radio communication also cannot realize; battery management unit directly can also receive the collision alarm that battery crash sensor is transmitted by wire; and the major loop relay controlling power battery pack inside disconnects, and to protect the wire harness of vehicle not to be damaged, substantially increases the safety of vehicle.And there is the condition of general collision at electronlmobil under, the power of electronlmobil is cut off by battery management unit at once, prevent the further injury that car load preshoot causes, do not occurring in badly damaged situation, car load can recover driving.
Accompanying drawing explanation
Fig. 1 is catenation principle frame diagram of the present invention;
Fig. 2 is power battery pack and battery management unit annexation figure;
Fig. 3 is battery management unit control logic figure of the present invention;
In figure: 1-wireless communication module, 2-CAN, 3-wire, 4-battery crash sensor, 5-battery pack, 6-major loop relay.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Specific embodiment described herein only in order to explain the utility model, and is not used in restriction the utility model.In addition, if below in described each embodiment of the utility model involved technical characteristic do not form conflict each other and just can mutually combine.
As shown in Figure 1, the utility model comprises full-vehicle control unit, battery management unit, power battery pack, safety air sac controller, vehicle body crash sensor and car body controller.Wherein, full-vehicle control unit, battery management unit, CAN 2 by automobile between safety air sac controller and car body controller connect.In addition, between safety air sac controller and battery management unit, also be connected with wire 3 between safety air sac controller and car body controller, be connected by wire between battery management unit with power battery pack, be connected by wire between safety air sac controller with vehicle body crash sensor.Being connected except these two kinds of connection modes with wire except CAN connects, full-vehicle control unit, battery management unit, safety air sac controller and car body controller being also provided with the wireless communication module 1 for realizing radio communication.
As shown in Figure 2, power battery pack comprises battery pack 5, major loop relay 6 and by electric load (i.e. power battery pack export), the normally open contact of major loop relay 6 is connected with the drive output of battery management unit, battery pack 5 can be controlled and by the break-make between electric load, battery management unit is also connected with battery crash sensor 4 by wire 3 by the break-make controlling major loop relay 6.
Connection mode between each control device be associated safely with vehicle collision of native system (full-vehicle control unit, battery management unit, power battery pack, safety air sac controller, vehicle body crash sensor and car body controller) has multiple, CAN, wire and radio communication, CAN signal is received at these control devices, during any one or a few in current in wire signal, wireless communication signals, all can realize the passive security safeguard function of vehicle, enable the safety of user further be reported barrier.Battery management unit can also directly receive the collision alarm coming from battery crash sensor; as shown in Figure 3; the CAN signal coming from safety air sac controller is received at battery management unit; current in wire signal, wireless communication signals and directly receive arrive as battery crash sensor transmit collision alarm in any one or a few time; the major loop relay 6 that battery management unit controls power battery pack inside disconnects; be not damaged to protect the wire harness of vehicle; the transmission of several signals is independent of each other, and substantially increases the safety of vehicle.And there is the condition of general collision at electronlmobil under, the power of electronlmobil is cut off by battery management unit at once, prevent the further injury that car load preshoot causes, do not occurring in badly damaged situation, car load can recover driving.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to the utility model claims.
Claims (3)
1. a cutting electricity in collision of electric automobile protection system, comprise battery management unit, power battery pack, full-vehicle control unit, safety air sac controller, vehicle body crash sensor and car body controller, described battery management unit, full-vehicle control unit, safety air sac controller, and connected by CAN between car body controller, it is characterized in that: between described safety air sac controller and battery management unit, described safety air sac controller is also connected by wire with between car body controller, described safety air sac controller is connected by wire with vehicle body crash sensor, described battery management unit is connected by wire with power battery pack, the output of described power battery pack is connected with the normally open contact of major loop relay, the drived control mouth of battery management unit connects major loop relay coil.
2. a kind of cutting electricity in collision of electric automobile protection system as claimed in claim 1, is characterized in that: be provided with wireless communication module in described battery management unit, full-vehicle control unit, safety air sac controller and car body controller.
3. a kind of cutting electricity in collision of electric automobile protection system as claimed in claim 1 or 2, is characterized in that: described battery management unit is also connected with battery crash sensor by wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420845224.8U CN204354964U (en) | 2014-12-25 | 2014-12-25 | A kind of cutting electricity in collision of electric automobile protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420845224.8U CN204354964U (en) | 2014-12-25 | 2014-12-25 | A kind of cutting electricity in collision of electric automobile protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204354964U true CN204354964U (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420845224.8U Active CN204354964U (en) | 2014-12-25 | 2014-12-25 | A kind of cutting electricity in collision of electric automobile protection system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204354964U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494544A (en) * | 2014-12-25 | 2015-04-08 | 东风汽车公司 | Collision power-off protection system of electromobile |
| CN105346395A (en) * | 2015-11-20 | 2016-02-24 | 石家庄市均益电子有限公司 | Electric car outage system and electric car with outage system |
| CN108632347A (en) * | 2017-03-24 | 2018-10-09 | 通用汽车环球科技运作有限责任公司 | Use the collision detection of GNSS tachometric surveys and bus monitoring |
| CN111361422A (en) * | 2020-03-24 | 2020-07-03 | 江铃汽车股份有限公司 | Automobile rear collision power-off protection method and system |
-
2014
- 2014-12-25 CN CN201420845224.8U patent/CN204354964U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494544A (en) * | 2014-12-25 | 2015-04-08 | 东风汽车公司 | Collision power-off protection system of electromobile |
| CN104494544B (en) * | 2014-12-25 | 2017-01-18 | 东风汽车公司 | Collision power-off protection system of electromobile |
| CN105346395A (en) * | 2015-11-20 | 2016-02-24 | 石家庄市均益电子有限公司 | Electric car outage system and electric car with outage system |
| CN108632347A (en) * | 2017-03-24 | 2018-10-09 | 通用汽车环球科技运作有限责任公司 | Use the collision detection of GNSS tachometric surveys and bus monitoring |
| CN108632347B (en) * | 2017-03-24 | 2021-07-20 | 通用汽车环球科技运作有限责任公司 | Method of detecting vehicle collision at vehicle and vehicle telematics apparatus |
| CN111361422A (en) * | 2020-03-24 | 2020-07-03 | 江铃汽车股份有限公司 | Automobile rear collision power-off protection method and system |
| CN111361422B (en) * | 2020-03-24 | 2021-07-16 | 江铃汽车股份有限公司 | Automobile rear collision power-off protection method and system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |