Motor-driven power steering unit

Details Motor-driven power steering unit Motor-driven power steering unit

2007-01-09

2007-01-09

Chin, Gary (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle subsystem or accessory control

C180S443000

Reexamination Certificate

active

10474707

ABSTRACT:
A motor-driven power steering unit comprising an electric motor for producing an auxiliary steering force in a steering system coupling a steering wheel to two wheels of a vehicle. The steering system provides assistance, based on steering information, to a rotation of the steering wheel by control of an electric current fed to the electric motor. A steering angle detection device is provided, wherein the steering system regulates the assistance as a function of a steering angle detected by the detection device. The assistance, or current, is reduced after a pre-set or pre-definable angle is reached or exceeded prior to reaching a respective end position. The reduction of the assistance or current is cancelled as soon as signs of steering force and the steering angel no longer coincide.

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patent: 1167158 (2002-01-01), None
patent: WO 01/20412 (2001-03-01), None

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