| 摘要 |
PROBLEM TO BE SOLVED: To simplify a motor control system without eliminating the use of an inertia compensation or a damper compensation while securing steering feeling of an electric power steering device. SOLUTION: The wheel is turned by generating a target torque Tt which a target torque calculation means M1 calculates from a steering torque Ts detected with a steering torque sensor Sa on a steering system through a motor M by driving the motor M giving the torque to the steering system from a steering wheel to the wheel. Since the actual torque Ta actually acting on the steering system through the motor M is detected with an actual sensor Sb and the motor M is torque-feedback controlled with a motor current calculation means M2 and a PID control means M3 so that the actual torque Ta coincides with the target torque Tt, the inertia compensation or the damper compensation which is required for the conventional current feedback control matching the actual current of the motor M to the target current is eliminated and the steering feeling can be improved while simplifying the structure of the control system. COPYRIGHT: (C)2006,JPO&NCIPI |
