Electric power steering apparatus

Details Electric power steering apparatus Electric power steering apparatus

2005-11-08

2010-11-02

Black, Thomas G (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle subsystem or accessory control

C701S041000, C180S443000, C180S446000

Reexamination Certificate

active

07826950

ABSTRACT:
In an electric power steering apparatus, steering torque of a steering wheel is detected by a torque sensor, and a motor10for generating steering assist power is controlled so that the steering assist power is generated according to a basic assist torque corresponding to the detected steering torque. A correspondence relationship between the steering torque and the basic assist torque is set such that an assist gradient that is a rate of change of the basic assist torque to the steering torque varies according to variation of the steering torque. A correction amount of an output of the motor10varies according to the variation of the assist gradient.

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