| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric power steering device capable of returning a vehicle to the straight running condition automatically after each steering operation. SOLUTION: The center position Cnt of a non-sensitive zone X of an EPS sensor to sense the dislocation amount of the steering wheel angle from the steering angle is shifted in accordance with the product of the running speed and steering angle, and where the sensed value Eps of the ESP sensor nullifies, the motor voltages Vεand -Vεshould be outputted. With this motor voltage, a steering motor is turned and the steering wheel is returned to the straight running condition. |
