Patent ID: 7380634

Claim:
A method for installing an electric power steering apparatus on a left-hand-drive vehicle or a right-hand-drive vehicle, the apparatus comprising a three-phase electric motor for generating an assist force for a turning operation of a steering handle to a rack shaft or column shaft; a rotation angle sensor for detecting a rotation angle of the three-phase electric motor; and an electrical control unit for controlling the power supply to the three-phase electric motor, the apparatus being installed on the left-hand-drive vehicle when the electrical control unit is designed for use in the right-hand-drive vehicle and on the right-hand-drive vehicle when the electrical control unit is designed for use in the left-hand-drive vehicle, comprising the steps of: mirror-reversing and arranging the apparatus except for the rotation angle sensor; arranging the rotation angle sensor in a consistent direction relative to the rack shaft or column shaft where the three-phase electric motor generates the assist force; and counterchanging the electric lines for V phase and for W phase of the three-phase electric motor before connecting.