ELECTRIC POWER STEERING DEVICE AND METHOD FOR CONTROLLING THE SAME

摘要

A current command value computing section 25 includes an integration control computing section 28. Based on an integration of the steering torque T, the integration control computing section 28 computes a steering torque integration control amount lint*, which is a compensation component for increasing the assist force. The integration control computing section 28 functions as a determining device that determines whether the vehicle is traveling forward in a straight line. When the determining device determines that the vehicle is traveling forward in a straight line, the integration control computing section 28 outputs the steering torque integration control amount lint* to an adder 29. The current command value computing section 25 superimposes the steering torque integration control amount lint* on a basic assist control amount las* computed by a basic assist control section 27, and outputs the obtained value, as a current command value Iq* corresponding to a target assist force, to an output section 26.