| 摘要 |
The invention provides an electric power steering device control method, which can enhance the operation feel of an electric power steering device and improve the durability of a power supply change. A control part (10) of the electric power steering device (1) can adapt to the changes of the duty ratio motor current value with the changes of the output voltage value of a power supply (50). Specifically speaking, an F/F duty limit setting part (53) presumes the duty ratio of a turning point representing the feedforward control range by using the output voltage value of the power supply (50) calculated by a voltage value calculation part (51). Furthermore, a gain corrected value setting part (54) presumes the corrected value of a gain in a feedback control based on the output voltage value of the power supply (50) in order to adapt to the inclination change after the turning point. The control part (10) enables the same current responses of the motor current IM by using the presumed turning point duty ratio and the gain corrected value. |
