Steering control system for vehicles having dual steering

Details Steering control system for vehicles having dual steering Steering control system for vehicles having dual steering

1992-11-02

1993-08-10

Focarino, Margaret A.

Motor vehicles

Surface effect vehicles

Dynamic seal or fluid curtain

180139, 280442, B62D 1200

Patent

active

052340694

ABSTRACT:
A steering control system is provided in which one pair of wheels of an articulated steer vehicle are steered in synchronization with the articulation steering. This is accomplished by providing a first two-position valve for directing the fluid exhausted from the rod end of one articulation steer jack to the head end chamber of one of the rear wheel steering jacks and to the rod end chamber of the other rear wheel steering jack for steering the rear wheels in a first direction and another two-position valve for directing the fluid exhausted from the rod end chamber of the other articulation steering jack to the rod end chamber of the one rear wheel steering jack and the head end chamber of the other rear wheel steering jack for steering the rear wheels in the opposite direction. The rod end and head end chambers of the rear wheel steering jacks are sized in relation to the rod end chambers of the articulation steering jacks so that the steering angle of the rear wheels is synchronized with the articulation steer angle even though the articulation steering jacks are much larger than the steering jacks for the rear wheels.

REFERENCES:
patent: 3380547 (1968-04-01), Granryd
patent: 3991847 (1976-11-01), Unruh
patent: 4802545 (1989-02-01), Nystuen et al.
patent: 4917204 (1990-04-01), Andrew et al.

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