发明名称 |
Fault detection in an electric power-assisted steering system |
摘要 |
A method and system for detecting faults in an electric power-assisted steering system includes determining a voltage vector of an electric power-assisted steering motor and measuring a current vector of the motor. Acceptable angular relationships are defined between the voltage vector and the current vector, which are then compared to find a fault if the angle does not meet the acceptable angular relationship. Additionally, motor direction and position can also be used against an angular check of the voltage and/or current vector. Similarly, torque direction can be used. In this way, several different faults can be determined dynamically under transient conditions.
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申请公布号 |
US2005049770(A1) |
申请公布日期 |
2005.03.03 |
申请号 |
US20030650614 |
申请日期 |
2003.08.28 |
申请人 |
LIU GUANG;LARMINAT RONAN DE;KURNIA ALEXANDER;REPPLINGER SCOTT W. |
发明人 |
LIU GUANG;LARMINAT RONAN DE;KURNIA ALEXANDER;REPPLINGER SCOTT W. |
分类号 |
B62D5/04;(IPC1-7):B62D5/04 |
主分类号 |
B62D5/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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