Patent ID: 7793754
Filing Date: 2010-09-14
Classification: B62D

Abstract:
1. An electric steering system comprising: a steering input measuring device for measuring a steering input which is input into a steering system; a steering speed measuring device for measuring a steering speed of the steering system; a target current computing section for computing a target current based on the steering input measured by the steering input measuring device; and a control section for applying a steering power to the steering system by driving a motor according to the target current, and applying damping to the steering system based on the steering speed measured by the steering speed measuring device, wherein the control section performs a damper gain control in which a damper gain for the damping is increased as the steering speed increases, and a rate of the increase in the damper gain defined when the steering speed is equal to or greater than a predetermined value is higher than a rate of the increase in the damper gain defined when the steering speed is less than the predetermined value.