| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a controller for an electric power steering system that can prevent a degradation in a steering feeling caused by vibration generation and the like due to a drop in a driving voltage for a sensor for detecting an actual current flowing in an electric motor. <P>SOLUTION: The controller has the actual motor current sensor for detecting an actual current flowing in the motor M, and a sensor driving voltage anomaly detecting means 32, etc., for detecting an anomalous drop in a sensor driving voltage Vb for driving the sensor. The controller further has a voltage controlling means 24, 25, 21, etc., for maintaining an applied voltage to the motor M (motor driving voltage) at a voltage value of a given time point before anomalous drop occurrence if the sensor driving voltage anomaly detecting means detects an anomalous drop in the sensor driving voltage Vb. <P>COPYRIGHT: (C)2003,JPO |
