发明申请
- 专利标题： Electric Power Steering System, Controller, and Method of Operation
- 专利标题（中）： 电动转向系统，控制器和操作方法
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申请号： US12434891申请日： 2009-05-04
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公开(公告)号： US20090288907A1公开(公告)日： 2009-11-26
- 发明人: Steven J. Collier-Hallman , Daniel W. Shafer
- 申请人： Steven J. Collier-Hallman , Daniel W. Shafer
- 申请人地址： US MI Troy
- 专利权人： DELPHI TECHNOLOGIES, INC.
- 当前专利权人： DELPHI TECHNOLOGIES, INC.
- 当前专利权人地址： US MI Troy
- 主分类号： B62D5/04
- IPC分类号： B62D5/04 ; G06F19/00
摘要：
An electric power steering system for a vehicle includes a motor for providing assistance in turning the wheels of the vehicle. The motor is electrically connected to a controller. The controller includes a power device, such as a power transistor, electrically connected to the motor to variably provide electric power to the motor as needed. The controller also includes a gate drive device electrically connected to the power device for regulating operation the power device. A shutdown mechanism is electrically connected between the gate drive device and a power input. In the event of a fault, the shutdown mechanism isolates electrical power from the gate drive device. This prevents the power device from providing electric power to the power steering motor.
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