Patent ID: 8437915
Filing Date: 2013-05-07
Classification: B62D,H02P

Abstract:
1. A steering control device, comprising: a torque detecting section for detecting a steering torque applied by a driver; a motor for generating an assist torque for assisting the steering torque; an electric power assist control section for computing a target current for electric power assist of the motor, which is required for generating the assist torque, based on the detected steering torque; an angle detecting section for detecting a rotation angle of the motor; a current control section for controlling a current of the motor so that the current of the motor becomes equal to the target current for electric power assist; and a pulsating component extractor for extracting a pulsating component of the steering torque, comprising: wherein the pulsating component of the steering torque is extracted by performing filter processing on the steering torque by the variable time-constant band pass filter, wherein a compensation current, which is calculated according to the extracted pulsating component of the steering torque, is added to the target current for electric power assist to correct the target current for electric power assist.