| 摘要 |
<p>In a control unit of an electric power steering apparatus for driving a motor with a current command value and giving an assist torque to a steering mechanism by driving the motor, the control unit is provided with a motor angle sensor; a torque sensor; a relative steering angle detecting section for detecting a relative steering angle; a steering angular speed detecting section for detecting an angular speed of the motor; a vehicle speed determining section; a neutral point calculating section for determining that a vehicle is being driven straightly, and calculating by considering that the relative steering angle when the straight driving continues for not less than a predetermined time is a neutral point; and an absolute steering angle calculating section for calculating an absolute steering angle with a difference between the neutral point and the relative steering angle.</p> |
