Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1986-12-22
1987-12-29
Love, John J.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
180143, 180148, B62D 508
Patent
active
047154640
ABSTRACT:
A power steering system which includes a fluid source that supplies pressure fluid of a constant flow rate, a fluid motor for supplementing manual steering torque, a servo-valve for distributing fluid to the fluid motor, and a reaction device for applying hydraulic reaction or feeling to a starting wheel in accordance with fluid pressure applied thereto. A magnetic control valve having a solenoid therein is connected to the reaction device to vary fluid pressure applied thereto in a predetermined range of pressures in accordance with vehicle operating condition. A mechanism for controlling the fluid pressure applied to reaction device at a predetermined pressure in the predetermined range of pressure even when the current supplied to the solenoid becomes abnormal is incorporated in the magnetic control valve.
REFERENCES:
patent: 3744515 (1973-07-01), Inoue
patent: 4471811 (1984-09-01), Kawabata et al.
patent: 4593783 (1986-06-01), Honaga et al.
patent: 4605085 (1986-08-01), Honaga et al.
patent: 4609331 (1986-09-01), Doffy
patent: 4616728 (1986-10-01), Suzuki et al.
patent: 4637484 (1987-01-01), Ijiri et al.
Nakamura Keiichi
Suzuki Mikio
Love John J.
McGiehan Donn
Toyoda Koki Kabushiki Kaisha
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