1. Field of the Invention
The present invention relates to an electric power steering apparatus which assists a steering force by transmitting a driving force of an electric motor to a steering mechanism.
2. Description of Related Art
Conventionally, an electric power steering apparatus has been used as an equipment for a motor vehicle. Such an electric power steering apparatus is configured to assist a steering effort by transmitting, to a steering mechanism, a torque produced at an electric motor that is driven in accordance with a steering torque applied to a steering wheel (Japanese Unexamined Patent Publication No. 2003-081102, for example).
In sudden braking of the motor vehicle, a brake pad strongly presses against a disk rotor and generates a great vibration onto vehicle wheels. The vibration is transmitted to a steering wheel through a steering mechanism and vibrates the steering wheel, adversely affecting the steering feeling. There is a need to improve this drawback.