All wheel steering system

Details All wheel steering system All wheel steering system

1992-05-11

1993-06-08

Hill, Mitchell J.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

180142, 180143, 280 91, B62D 100, B62D 600

Patent

active

052170837

ABSTRACT:
An all wheel steering system for heavy vehicles such as airport and municipal service vehicles. A rear wheel lockout is provided to ensure safe operation by preventing rear steering above a pre-set vehicle speed. The system can be adjusted so that rear steering range angles can be varied to fit particular applications. The steering control involves the use of a closed loop position feedback circuit in which a change in the relative polarity of the command and feedback RVITs results in switching of the system between various modes.

REFERENCES:
patent: 4893689 (1990-01-01), Laurich-Trost
patent: 5076382 (1991-12-01), Vaughn et al.
patent: 5111901 (1992-05-01), Bachhuber et al.

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