Control device for an electric actuator of a steering system

Details Control device for an electric actuator of a steering system Control device for an electric actuator of a steering system

1996-08-28

1998-03-17

Ro, Bentsu

Electricity: motive power systems

Automatic and/or with time-delay means

Responsive to direction, inclination or angular position of...

318432, 180412, 180446, B62D 600, B62D 504

Patent

active

057291071

ABSTRACT:
In a control device for an electric actuator of a steering system of a vehicle, the amount of power assist provided by the electric actuator of the steering system is appropriately diminished when the steering wheel is turned more than appropriate under the given road condition so that the effort to turn the steering wheel may not be excessively reduced even on a slippery road surface. Thus, when the vehicle is steered more than appropriate for a given road condition, the steering effort is increased by reducing the power assist of the steering system, whereby the vehicle operator is prevented from excessively steering the vehicle. This increase in the steering effort occurs only when the vehicle operator attempts to increase the steering angle, and does not affect the tendency of the steering wheel to return to its neutral position.

REFERENCES:
patent: 4669569 (1987-06-01), Suzuki et al.
patent: 4936406 (1990-06-01), Tezuka et al.
patent: 4939653 (1990-07-01), Tsurumiya et al.
patent: 4940103 (1990-07-01), Momiyama
patent: 4964481 (1990-10-01), Sano et al.
patent: 5089967 (1992-02-01), Haseda et al.
patent: 5261503 (1993-11-01), Yasui

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