ELECTRIC POWER STEERING DEVICE AND METHOD OF ASSEMBLING THE SAME

摘要

To provide an electric power steering apparatus in which it is possible to minimize a connection distance between a control unit and an electric motor and surely prevent electric noise from mixing between the control unit and the electric motor as well as to minimize electric resistance and minimize an electric loss by directly connecting the control unit and connection terminals of the electric motor and a torque sensor. A motor control apparatus includes a steering column 3 having inserted therein a steering shaft 2 to which steering torque is transmitted, a reduction gear box 4 coupled to the steering shaft 2, and an electric motor 5 that transmits a steering assisting force to the steering shaft 2 via a reduction mechanism in the reduction gear box 4. The electric motor 5 and a control unit 19 including a control board mounted with a control circuit that controls to drive the electric motor 5 are provided side by side in the reduction gear box 4 and a connection terminal of the electric motor 5 is electrically connected to the control unit 19 directly.