Abstract
In the conventional electric power steering apparatus, a method of improving the steering feeling by controlling the hysteresis width generated according to the change of the gain in the reverse steering by the method of compensating the column torque is proposed. However, there is a problem that the steering feeling such as inertia feeling and hanging feeling of the steering wheel cannot be effectively improved. The purpose of this study is to compensate the necessary high frequency signal momentarily during the reverse steering to improve responsiveness and to improve steering feeling effectively. Generally, when a driver performs a reverse steering, a steering sense such as a sense of hitching or stickiness occurs due to inertia, a clearance, and a frictional force of a mechanism or a motor. In order to solve the problem, unlike a relatively general steering condition, In order to control this effectively, it is very important when and how to compensate for some form of auxiliary output. In this study, it would be demonstrated that it is possible to improve the responsiveness and steering disturbances while maintaining the existing steering feeling by rapidly detecting the reverse steering situation by amplifying the high frequency signal of the instantly optimized column torque without delay of signals through actual vehicle test and computer simulation