Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1990-04-24
1991-09-10
Rice, Kenneth R.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
180142, 180143, B62D 602
Patent
active
050465724
ABSTRACT:
A steering control system for a vehicle is provided. This system includes a front power cylinder which provides steering assistance for front wheels and a rear power cylinder which provides steering assistance for rear wheels. The system further includes a single hydraulic pump which provides a pressurized hydraulic fluid to the front and rear power cylinders and a flow dividing valve which controls a supply rate of the pressurized hydraulic fluid to the front and rear power cylinders based on vehicle speed to steer the front and rear wheels with a preselected steering angle relationship.
REFERENCES:
patent: 4621702 (1986-11-01), Kanazawa et al.
patent: 4640379 (1987-02-01), Shibahata et al.
patent: 4690431 (1987-09-01), Ito et al.
patent: 4917204 (1990-04-01), Andrew et al.
patent: 4934474 (1990-06-01), Sugasawa
Atsugi Unisia Corporation
Bompey Mitchell
Kananen Ronald P.
Rice Kenneth R.
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