Boots – shoes – and leggings
Patent
1994-07-28
1995-05-02
Chin, Gary
Boots, shoes, and leggings
280707, 280 91, 180140, 180142, B60G 1706, B62D 506
Patent
active
054125715
ABSTRACT:
A four-wheel steering apparatus for use with a motor vehicle supported on a pair of front wheels and a pair of rear wheels. The apparatus comprises a control unit for steering the front wheels to provide a front wheel auxiliary steer angle satisfying the following equation: ##EQU1## where .theta..sub.(s) is a Laplace transform of the front wheel steer angle and .delta..sub.f(s) is a Laplace transform of the front wheel auxiliary steer angle, S is a Laplacian, and K, .tau..sub.1, .tau..sub.2, T.sub.1 and T.sub.2 are constants inherent on the motor vehicle and for steering the rear wheels to provide a rear wheel auxiliary steer angle satisfying the following equation: ##EQU2## where .theta..sub.(s) is a Laplace transform of the front wheel steer angle, .delta..sub.r(s) is a Laplace transform of the rear wheel auxiliary steer angle, and K', .tau..sub.1 ', .tau..sub.2 ', T.sub.1 ' and T.sub.2 ' are constants inherent on the motor vehicle.
REFERENCES:
patent: 4834204 (1989-05-01), Ito et al.
patent: 4878557 (1989-11-01), Shibahata et al.
patent: 4934474 (1990-06-01), Sugasawa
patent: 4942532 (1990-07-01), Mori
patent: 4998201 (1991-03-01), Mori
patent: 5003480 (1991-03-01), Mori et al.
patent: 5180026 (1993-01-01), Mori
Eguchi Takaaki
Mouri Hiroshi
Chin Gary
Nissan Motor Co,. Ltd.
Walker Tyrone V.
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