Apparatus for actively controlling steer angle of front wheels o

Details Apparatus for actively controlling steer angle of front wheels o Apparatus for actively controlling steer angle of front wheels o

1991-08-28

1993-12-07

Chin, Gary

Boots, shoes, and leggings

180141, 180142, B62D 500

Patent

active

052688410

ABSTRACT:
In an apparatus for actively controlling a steer angle of front wheels of a vehicle in accordance with a steering wheel angle, an active control amount for actively controlling the steer angle of the front wheels is calculated by an equation including a proportional term and a differential term. A coefficient of the differential term is changed in accordance with a lateral acceleration such that it is kept unchanged within a first range in which the cornering power is large, but is increased in a second range in which the cornering power is decreased due to the non-linearity of tires. Thus, the reduction in the cornering power in the second range can be compensated for and the stability and response during the high lateral G turning can be improved.

REFERENCES:
patent: 4690431 (1987-09-01), Ito et al.
patent: 4718685 (1988-01-01), Kawabe et al.
patent: 4834205 (1989-05-01), Mizuno et al.
patent: 4878557 (1989-11-01), Shibahata et al.
patent: 4893690 (1990-01-01), Mori et al.
patent: 4947327 (1990-08-01), Kawagoe
patent: 5018070 (1991-05-01), Eguchi
patent: 5020619 (1991-06-01), Kanazawa et al.

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