CN101867173A - Protection system for control circuit of permanent magnet drive motor for vehicle - Google Patents
Protection system for control circuit of permanent magnet drive motor for vehicle Download PDFInfo
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- CN101867173A CN101867173A CN201010202331A CN201010202331A CN101867173A CN 101867173 A CN101867173 A CN 101867173A CN 201010202331 A CN201010202331 A CN 201010202331A CN 201010202331 A CN201010202331 A CN 201010202331A CN 101867173 A CN101867173 A CN 101867173A
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- vehicle
- control circuit
- voltage
- drive motor
- permanent magnet
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Abstract
本发明提供一种车用永磁驱动电机控制电路保护系统的设计方法，属于电动汽车应用领域。该永磁驱动电机控制电路保护系统由高压主回路、车载直流高压系统检测装置、控制电路、车载直流低压电源检测装置、DC/DC变换器等组成。本发明的目的是保证当车载直流低压电源和车载直流高压电源系统同时出现故障且永磁驱动电机仍处于旋转状态时，DC/DC变换器起作用使得电机控制器内的控制电路有效，使永磁驱动电机处于可控状态，避免系统出现毁灭性损坏。
The invention provides a design method for a control circuit protection system of a permanent magnet drive motor for a vehicle, belonging to the application field of electric vehicles. The permanent magnet drive motor control circuit protection system consists of a high-voltage main circuit, a vehicle-mounted DC high-voltage system detection device, a control circuit, a vehicle-mounted DC low-voltage power supply detection device, and a DC/DC converter. The purpose of the present invention is to ensure that when the vehicle-mounted DC low-voltage power supply and the vehicle-mounted DC high-voltage power supply system fail at the same time and the permanent magnet drive motor is still in a rotating state, the DC/DC converter works to make the control circuit in the motor controller effective, so that the permanent magnet drive motor is still in a rotating state. The magnetic drive motor is in a controllable state to avoid catastrophic damage to the system.
Description
Technical field
The present invention relates to the electric automobile application, particularly electric automobile permanent magnet drive motor control field.
Background technology
Existing permanent magnet drive motor drive system Dc low voltage power supply is mainly used vehicle-mounted Dc low voltage power supply, and major function is to provide Dc low voltage power supply for the drive system control circuit.When vehicle-mounted Dc low voltage power supply breaks down, the control circuit of in running order drive motors lost efficacy, if drive circuit is still worked, then had drive motors unsafe condition out of control.Direct-current low-voltage self-power supply device of driving system of driving motor for electric automobile provides continual supply of electric power for control circuit under the situation of high voltage power supply operate as normal.But, for rotating permanent magnet drive motor, when vehicle-mounted Dc low voltage power supply and high voltage power supply break down simultaneously, under the situation that control circuit lost efficacy, the back electromotive force of high pressure major loop constantly increases along with the rising of rotating speed, and the electronic devices and components of high pressure major loop surpass its withstand voltage will be breakdown.
Summary of the invention
Technical problem underlying to be solved by this invention is a kind of control circuit protection system of permanent magnet driving motor for vehicle, to solve the electric automobile security hidden trouble that present permanent magnet driving motor for vehicle control circuit exists.The technical scheme that the present invention takes is: comprise high pressure major loop, vehicle-mounted high direct voltage system detecting device, control circuit, vehicle-mounted Dc low voltage power supply checkout gear, DC/DC converter.This method is the fail safe of electric automobile, and the Redundancy Design of permanent magnet drive motor drive system provides reliable guarantee.
When vehicle-mounted Dc low voltage power supply and the equal operate as normal of high voltage source; the control circuit protection system is supplied to the control circuit of drive motors drive system to use after with the voltage stabilizing of vehicle-mounted dc low-voltage electricity; this moment, the control circuit protection system was exactly a dc low-voltage electricity pressurizer; promptly when vehicle-mounted Dc low voltage power supply is lower than requiring of the required dc low-voltage electricity of control circuit, play the effect of dc low-voltage compensation.
When vehicle-mounted Dc low voltage power supply interrupts; and high-pressure system is still normal; when motor is in running order; the control circuit protection system is converted to Dc low voltage power supply with the dc high-voltage of drive motors drive circuit immediately; be the power supply of motor driven systems control circuit; simultaneously, vehicle-mounted Dc low voltage power supply checkout gear sends the early warning notice to control circuit, and control circuit controlling and driving motor is shut down.
When vehicle-mounted dc low-voltage system and high-pressure system break down simultaneously; permanent magnet drive motor for rotation; drive the back electromotive force that can produce high voltage in the major loop at magneto; control circuit protection system of permanent magnet driving motor is converted to the low tension that control circuit can be used with the high-tension electricity of controller major loop; the state of control controller major loop; guarantee that electronic devices and components are not breakdown; simultaneously; vehicle-mounted high direct voltage system detecting device detects vehicle-mounted high direct voltage system fault; vehicle-mounted Dc low voltage power supply checkout gear detects vehicle-mounted Dc low voltage power supply fault; send the early warning notice to control circuit, control circuit controlling and driving motor is shut down.
When vehicle slips during operating mode such as car flame-out, full car low pressure and high pressure were in and thought closed condition this moment, and vehicle is in running status, is a kind of dangerous operating mode.When drive motors rotates, this DC/DC converter will produce electric energy, for drive motor controller provides power supply, make electric machine controller be in controllable state, avoid occurring system failure, thereby prevent the generation of this kind operating mode, the safety of support vehicles and other staff and vehicle.
Description of drawings
Accompanying drawing is the electrical schematic diagram of this vehicle-mounted control circuit protection system of permanent magnet driving motor.
Among the figure: 1. permanent magnet drive motor, 2. high pressure major loop, 3. drive motor controller, 4. DC high-voltage power supply, 5. vehicle-mounted high direct voltage system detecting device, 6.DC/DC converter, 7. diode, 8. control circuit, 9. diode, 10. vehicle-mounted Dc low voltage power supply checkout gear, 11. vehicle-mounted Dc low voltage power supplies.
Embodiment
Below will be described in detail the specific embodiment of the present invention with reference to the accompanying drawings.
Vehicle-mounted control circuit protection system of permanent magnet driving motor of the present invention is made up of high pressure major loop 2, vehicle-mounted high direct voltage system detecting device 5, control circuit 8, vehicle-mounted Dc low voltage power supply checkout gear 10, D C/D C converter 6 etc.The effect of high pressure major loop 2 is to provide driving voltage for permanent magnet drive motor 1, the effect of vehicle-mounted high direct voltage system detecting device 5 is to detect whether operate as normal of vehicle-mounted DC high-voltage power supply system 4, the effect of control circuit 8 is states of controlling and driving motor 1, the effect of vehicle-mounted Dc low voltage power supply checkout gear 10 is to detect whether operate as normal of vehicle-mounted Dc low voltage power supply 11, and the effect of DC/DC converter 6 is that the dc high-voltage with high pressure major loop 2 is converted to the Dc low voltage power supply that control circuit 8 can be used.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010202331A CN101867173A (en) | 2010-06-18 | 2010-06-18 | Protection system for control circuit of permanent magnet drive motor for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010202331A CN101867173A (en) | 2010-06-18 | 2010-06-18 | Protection system for control circuit of permanent magnet drive motor for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101867173A true CN101867173A (en) | 2010-10-20 |
Family
ID=42958780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010202331A Pending CN101867173A (en) | 2010-06-18 | 2010-06-18 | Protection system for control circuit of permanent magnet drive motor for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101867173A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856876A (en) * | 2012-09-25 | 2013-01-02 | 广东易事特电源股份有限公司 | Anti-misreport island detection system |
| CN105922877A (en) * | 2015-02-27 | 2016-09-07 | 通用汽车环球科技运作有限责任公司 | Method And Apparatus For Controlling Electrified Powertrain System Of Vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5796175A (en) * | 1995-08-03 | 1998-08-18 | Honda Giken Kogyo Kabushiki Kaisha | Power supply control device for electric vehicle |
| JP2001069683A (en) * | 1999-08-31 | 2001-03-16 | Toyota Motor Corp | Power system |
| JP2007137275A (en) * | 2005-11-18 | 2007-06-07 | Toyota Motor Corp | Power control device |
| CN101330251A (en) * | 2007-06-06 | 2008-12-24 | 通用汽车环球科技运作公司 | Protection for permanent magnet motor control circuits |
-
2010
- 2010-06-18 CN CN201010202331A patent/CN101867173A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5796175A (en) * | 1995-08-03 | 1998-08-18 | Honda Giken Kogyo Kabushiki Kaisha | Power supply control device for electric vehicle |
| JP2001069683A (en) * | 1999-08-31 | 2001-03-16 | Toyota Motor Corp | Power system |
| JP2007137275A (en) * | 2005-11-18 | 2007-06-07 | Toyota Motor Corp | Power control device |
| CN101330251A (en) * | 2007-06-06 | 2008-12-24 | 通用汽车环球科技运作公司 | Protection for permanent magnet motor control circuits |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856876A (en) * | 2012-09-25 | 2013-01-02 | 广东易事特电源股份有限公司 | Anti-misreport island detection system |
| CN102856876B (en) * | 2012-09-25 | 2015-10-21 | 广东易事特电源股份有限公司 | A kind of Anti-misreport island detection system |
| CN105922877A (en) * | 2015-02-27 | 2016-09-07 | 通用汽车环球科技运作有限责任公司 | Method And Apparatus For Controlling Electrified Powertrain System Of Vehicle |
| CN105922877B (en) * | 2015-02-27 | 2018-10-02 | 通用汽车环球科技运作有限责任公司 | Method and apparatus for the electrified powertrain for controlling vehicle |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101020 |