STEERING WHEEL ALIGNMENT METHOD IN THE MDPS SYSTEM

摘要

PURPOSE: An electric power steering device and a steering wheel alignment method thereof are provided to improve workability and align a steering wheel accurately through offering the steering assist of an electric power steering device to a steering wheel during the steering wheel alignment process. CONSTITUTION: An electric power steering device comprises a steering angle sensor(21), a steering angle sensor initialization detection unit(22), an ignition detection sensor(23), and an ECU(electronic control unit)(24). The steering angle sensor senses the steering angle of a steering wheel. The steering angle sensor initialization detection unit senses the initialization status of the steering angle sensor. The ignition detection sensor senses the ignition ON/OFF state of the key of an automobile. The ECU supplies rotation power to an electric motor(25) according to the initialization status of the steering angle sensor and the ignition ON/OFF state of the key of an automobile. The electric motor supplies steering assist to a steering wheel.