CN203078325U - Protection system for preventing master contactor of vehicle-mounted motor control system from losing effectiveness - Google Patents
Protection system for preventing master contactor of vehicle-mounted motor control system from losing effectiveness Download PDFInfo
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- CN203078325U CN203078325U CN 201220743836 CN201220743836U CN203078325U CN 203078325 U CN203078325 U CN 203078325U CN 201220743836 CN201220743836 CN 201220743836 CN 201220743836 U CN201220743836 U CN 201220743836U CN 203078325 U CN203078325 U CN 203078325U
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- electric machine
- main contactor
- cathode contact
- machine controller
- electrode contact
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Abstract
The utility model discloses a protection system for preventing a master contactor of a vehicle-mounted motor control system from losing effectiveness. A high-voltage battery of the protection system provides a power source for a motor controller through a high-voltage control module. The motor controller controls a motor to operate. The high-voltage control module comprises a positive electrode contact and a negative electrode contact of the master contactor, a pre-charging relay contact and a pre-charging resistor. The positive electrode contact and the negative electrode contact of the master contactor are connected with a positive end and a negative end of the high-voltage battery respectively, and are connected with a positive end and a negative end of a power source input end of the motor controller respectively. The pre-charging relay contact and the pre-charging resistor are in series connection and then are in parallel connection to two ends of the positive electrode contact of the master contactor. A signal input end of a signal detection module is connected with the high-voltage control module and used for detecting connection and disconnection of the positive electrode contact and the negative electrode contact of the master contactor. A signal output end of the signal detection module is connected with the motor controller. The protection system can detect the state of the master contactor in real time. Once the master contactor loses effectiveness, a power module is prohibited from running, damage to the motor controller caused by overvoltage of busbar voltage is prevented, and therefore safety performance and reliable performance of a whole vehicle are improved.
Description
Technical field
The utility model relates to the protection system that a kind of vehicle-mounted electric machine control system main contactor lost efficacy.
Background technology
The new-energy automobile electric machine control system adopts the high voltage power powered battery; for guaranteeing vehicle safety and protection system major loop; need add the break-make of precharge and main contactor control high-tension current, also not have protection way at present at main contactor failuring delay motor controller.When permagnetic synchronous motor during at fast state, winding back emf is higher, in case the dc bus main contactor lost efficacy, its main contact does not close, and the operation of enable power module, the generating of rotary transformer angle zero-bit deflection because bus end thin-film capacitor appearance value is less, causes electric energy to increase suddenly, voltage raises rapidly, may surpass the voltage range of power model, cause electric machine controller badly damaged, have a strong impact on the safety and the unfailing performance of car load.Be generally and prevent bus overvoltage, usually at bus end thin-film capacitor parallel discharge resistance, when the detection bus voltage is too high, release energy by this discharging resistance, but this velocity of discharge is slower, being not enough to provides effective protection to electric machine controller.
Summary of the invention
Technical problem to be solved in the utility model provides the protection system that a kind of vehicle-mounted electric machine control system main contactor lost efficacy; native system detects the main contactor state in real time; forbid the power model operation in case lost efficacy; prevent that the bus voltage overvoltage from causing electric machine controller to damage, and improved the safety and the unfailing performance of car load.
For solving the problems of the technologies described above; the protection system that the vehicle-mounted electric machine control system main contactor of the utility model lost efficacy comprises high-tension battery; the high pressure control module; electric machine controller and motor; described high-tension battery provides described electric machine controller power supply by described high pressure control module; the described motor operation of described motor controller controls; described high pressure control module comprises the main contactor cathode contact; the main contactor cathode contact; pre-charge-relay contact and pre-charge resistance; described main contactor cathode contact connects described high-tension battery anode and electric machine controller power supply input anode; described main contactor cathode contact connects described high-tension battery negative terminal and electric machine controller power supply input negative terminal; be parallel to described main contactor cathode contact two ends after described pre-charge-relay contact and the pre-charge resistance series connection; native system also comprises signal detection module; described signal detection module signal input part connects described high pressure control module and detects the break-make of described main contactor cathode contact and main contactor cathode contact; described signal detection module signal output part connects described electric machine controller; described signal detection module outputs signal to described electric machine controller after detecting described main contactor cathode contact or the inefficacy of main contactor cathode contact, and described electric machine controller cuts out power model and reports electric machine control system.
Because the protection system that the vehicle-mounted electric machine control system main contactor of the utility model lost efficacy has adopted technique scheme; the high-tension battery that is native system provides the electric machine controller power supply by the high pressure control module; the operation of motor controller controls motor; the high pressure control module comprises the main contactor cathode contact; the main contactor cathode contact; pre-charge-relay contact and pre-charge resistance; the main contactor cathode contact connects high-tension battery anode and electric machine controller power supply input anode; the main contactor cathode contact connects high-tension battery negative terminal and electric machine controller power supply input negative terminal; be parallel to main contactor cathode contact two ends after pre-charge-relay contact and the pre-charge resistance series connection; native system also comprises signal detection module; the signal detection module signal input part connects the high pressure control module and detects the main contactor cathode contact and the break-make of main contactor cathode contact; the signal detection module signal output part connects electric machine controller; signal detection module outputs signal to electric machine controller after detecting main contactor cathode contact or the inefficacy of main contactor cathode contact, and electric machine controller cuts out power model and reports electric machine control system.Native system detects the main contactor state in real time, forbids the power model operation in case lose efficacy, and prevents that the bus voltage overvoltage from causing electric machine controller to damage, and improved the safety and the unfailing performance of car load.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is the protection system functional block diagram that the vehicle-mounted electric machine control system main contactor of the utility model lost efficacy.
The specific embodiment
As shown in Figure 1; the protection system that the vehicle-mounted electric machine control system main contactor of the utility model lost efficacy comprises high-tension battery 1; high pressure control module 7; electric machine controller 6 and motor 8; described high-tension battery 1 provides described electric machine controller 6 power supplys by described high pressure control module 7; described motor 8 operations of described electric machine controller 6 controls; described high pressure control module 7 comprises main contactor cathode contact 2; main contactor cathode contact 5; pre-charge-relay contact 3 and pre-charge resistance 4; described main contactor cathode contact 2 connects described high-tension battery 1 anode and electric machine controller 6 power supplys input anode; described main contactor cathode contact 5 connects described high-tension battery 1 negative terminal and electric machine controller 6 power supplys input negative terminal; be parallel to described main contactor cathode contact 2 two ends after described pre-charge-relay contact 3 and pre-charge resistance 4 series connection; native system also comprises signal detection module 9; described signal detection module 9 signal input parts connect described high pressure control module 7 and detect the break-make of described main contactor cathode contact 2 and main contactor cathode contact 5; described signal detection module 9 signal output parts connect described electric machine controller 6; described signal detection module 9 outputs signal to described electric machine controller 6 after detecting described main contactor cathode contact 2 or 5 inefficacies of main contactor cathode contact, and described electric machine controller 6 cuts out power model and reports electric machine control system.
When this protection system is normally moved; the main contactor cathode contact closes in advance; close in the pre-charge-relay contact then; high-tension battery is electric machine controller precharge by pre-charge-relay contact, pre-charge resistance, main contactor cathode contact; after electric machine controller reaches running state; the main contactor cathode contact closes, and high-tension battery is powered to electric machine controller by main contactor cathode contact and main contactor cathode contact, the operation of motor controller controls motor.
When the motor high speed rotating, when main contactor lost efficacy, and the generating of the rotary transformer angle zero-bit of motor deflection, the operation of enable power module, motor is in generating state, and system's kinetic energy changes into electric energy, and its electric energy increment is:
Can will all be stored in the thin-film capacitor of bus, cause bus voltage to rise rapidly, surpass thin-film capacitor, power module voltage tolerance range, cause electric machine controller badly damaged.This protection system detects the main contactor state in real time by signal detection module; when detecting the fail message of main contactor cathode contact or main contactor cathode contact; fail message is transferred to electric machine controller; electric machine controller in time cuts out power model; and report electric machine control system high voltage supply fault; electric machine control system is in time made and is shut down control, thereby has avoided the damage of electric machine controller, has improved the reliability of car load control.
Claims (1)
1. protection system that vehicle-mounted electric machine control system main contactor lost efficacy; comprise high-tension battery; the high pressure control module; electric machine controller and motor; described high-tension battery provides described electric machine controller power supply by described high pressure control module; the described motor operation of described motor controller controls; described high pressure control module comprises the main contactor cathode contact; the main contactor cathode contact; pre-charge-relay contact and pre-charge resistance; described main contactor cathode contact connects described high-tension battery anode and electric machine controller power supply input anode; described main contactor cathode contact connects described high-tension battery negative terminal and electric machine controller power supply input negative terminal; be parallel to described main contactor cathode contact two ends after described pre-charge-relay contact and the pre-charge resistance series connection; it is characterized in that: also comprise signal detection module; described signal detection module signal input part connects described high pressure control module and detects the break-make of described main contactor cathode contact and main contactor cathode contact; described signal detection module signal output part connects described electric machine controller; described signal detection module outputs signal to described electric machine controller after detecting described main contactor cathode contact or the inefficacy of main contactor cathode contact, and described electric machine controller cuts out power model and reports electric machine control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220743836 CN203078325U (en) | 2012-12-31 | 2012-12-31 | Protection system for preventing master contactor of vehicle-mounted motor control system from losing effectiveness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220743836 CN203078325U (en) | 2012-12-31 | 2012-12-31 | Protection system for preventing master contactor of vehicle-mounted motor control system from losing effectiveness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203078325U true CN203078325U (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220743836 Expired - Fee Related CN203078325U (en) | 2012-12-31 | 2012-12-31 | Protection system for preventing master contactor of vehicle-mounted motor control system from losing effectiveness |
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| CN (1) | CN203078325U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442404A (en) * | 2014-11-05 | 2015-03-25 | 苏州汇川技术有限公司 | High-voltage bin contactor control system of electomobile and control method thereof |
| CN106427583A (en) * | 2016-11-17 | 2017-02-22 | 天津易鼎丰动力科技有限公司 | Protection and control method for high voltage in electric vehicle |
| CN108045231A (en) * | 2017-12-14 | 2018-05-18 | 普汽新能（北京）科技有限公司 | High voltage distribution box is used in a kind of batteries of electric automobile bag |
| CN108116231A (en) * | 2017-12-20 | 2018-06-05 | 普汽新能（北京）科技有限公司 | A kind of circuit methods of New-energy electric vehicle battery system high voltage distribution box |
| CN109245510A (en) * | 2018-09-19 | 2019-01-18 | 京信通信系统（中国）有限公司 | Starting current suppression circuit, method, control device and equipment |
| CN110712527A (en) * | 2019-10-22 | 2020-01-21 | 中国北方车辆研究所 | Capacitive load automatic charging and discharging integrated protection circuit of hybrid electric drive armored vehicle |
-
2012
- 2012-12-31 CN CN 201220743836 patent/CN203078325U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442404A (en) * | 2014-11-05 | 2015-03-25 | 苏州汇川技术有限公司 | High-voltage bin contactor control system of electomobile and control method thereof |
| CN106427583A (en) * | 2016-11-17 | 2017-02-22 | 天津易鼎丰动力科技有限公司 | Protection and control method for high voltage in electric vehicle |
| CN108045231A (en) * | 2017-12-14 | 2018-05-18 | 普汽新能（北京）科技有限公司 | High voltage distribution box is used in a kind of batteries of electric automobile bag |
| CN108116231A (en) * | 2017-12-20 | 2018-06-05 | 普汽新能（北京）科技有限公司 | A kind of circuit methods of New-energy electric vehicle battery system high voltage distribution box |
| CN109245510A (en) * | 2018-09-19 | 2019-01-18 | 京信通信系统（中国）有限公司 | Starting current suppression circuit, method, control device and equipment |
| CN109245510B (en) * | 2018-09-19 | 2021-02-23 | 京信通信系统（中国）有限公司 | Starting current suppression circuit, starting current suppression method, control device and equipment |
| CN110712527A (en) * | 2019-10-22 | 2020-01-21 | 中国北方车辆研究所 | Capacitive load automatic charging and discharging integrated protection circuit of hybrid electric drive armored vehicle |
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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: 20130724 Termination date: 20181231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |