Patent ID: 6814178
Filing Date: 2004-11-09
Classification: B62D

Abstract:
An electric power steering apparatus, comprising:a rack shaft having a rack on one side and a screw groove on the other side; a pinion rotatably mounted on a vehicle body and engaging with the rack to move axially the rack shaft by being rotated by a steering torque; a nut engaged with the screw groove and connected to an electric motor to be rotated by a torque of the electric motor in order to assist the movement of the rack shaft; a bearing rotatably supporting the nut on the vehicle body, wherein; a location of a rotating center of the pinion is positioned in a state that a distance from an end face of the rack shaft in a neutral position is equal to a length of 0.224L or 0.359L or is within a length from 0.224L to 0.359L wherein the L is a length of the rack shaft.