发明申请
- 专利标题： Fail-safe system for electric power steering in vehicles
- 专利标题（中）： 车辆电动助力转向故障安全系统
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申请号： US10955618申请日： 2004-09-30
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公开(公告)号： US20060067022A1公开(公告)日： 2006-03-30
- 发明人: Thomas Gallagher , Hong Jiang , Sergei Kolomeitsev , John Suriano , Joseph Whinnery
- 申请人： Thomas Gallagher , Hong Jiang , Sergei Kolomeitsev , John Suriano , Joseph Whinnery
- 申请人地址： US MI AUBURN HILLS
- 专利权人： VALEO ELECTRICAL SYSTEMS, INC.
- 当前专利权人： VALEO ELECTRICAL SYSTEMS, INC.
- 当前专利权人地址： US MI AUBURN HILLS
- 主分类号： H02H3/18
- IPC分类号： H02H3/18
摘要：
A control system for an electric motor used to provide mechanical power to a power steering system in a vehicle. The motor is of the two-phase type with an independent winding for each phase, or of the three-phase type with two independent stator windings. Two inverters are provided, one for each winding. Each inverter provides AC current to run the motor. If a fault is detected in an inverter or its stator winding, current is terminated to that inverter, and the motor is run using the other winding. In addition, if the vehicle battery is installed with incorrect polarity, components within the inverters can be destroyed. The invention detects the incorrect polarity, and blocks current to the inverters.
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