Patent ID: 8086373

Claim:
An electric power steering apparatus comprising: a steering assist section that applies an assist force to a steering system to assist operation of a steering member, wherein the steering assist section is actuated by a drive source, the drive source being a motor; a steering torque sensor that detects steering torque input to the steering system; an abnormality detection section that detects abnormalities in the steering torque sensor; a steering angle sensor that detects a steering angle of the steering member; a rotational angle sensor that detects a rotational angle of the motor; and a control section that controls supply of drive power to the motor, wherein, when the abnormality detection section detects an abnormality in the steering torque sensor, the control section controls the supply of the drive power to the motor such that a converted steering angle, which is obtained by converting the rotational angle of the motor detected by the rotational angle sensor, follows a target steering angle, which is computed based on the steering angle detected by the steering angle sensor.