Motor vehicles – Compensating devices
Patent
1974-03-04
1976-02-24
Friaglia, Leo
Motor vehicles
Compensating devices
91380, B62D 508
Patent
active
039399389
ABSTRACT:
Herein disclosed is an automotive power-assisted steering system which comprises a hydromechanical leverage unit drivingly connected to a steering linkage, a rotary piston-valve hydraulically connected to the leverage unit, a motor to move the piston-valve for actuating the leverage unit to a right-turn or left-turn position, and a valve re-set mechanism connected between the leverage unit and the piston-valve for moving the valve into an equilibrium position from a condition bringing the leverage unit into the right-turn or left-turn position, wherein the motor is energized by a pulsating current which is controlled in accordance with a signal representative of the angle and direction of turning of a steering wheel and, where desired, signals representative of a vehicle velocity and an external force which may be sideways imparted to the vehicle by a side wind blowing onto the vehicle. To make it possible to steer the vehicle in a manual, non-assisted fashion, clutch means may be interposed between the steering wheel and the leverage unit.
REFERENCES:
patent: 2802674 (1957-08-01), Jackson
patent: 2858805 (1958-11-01), Lincoln et al.
patent: 2897684 (1959-08-01), Lincoln et al.
patent: 2968189 (1961-01-01), Walko
patent: 2990902 (1961-07-01), Cataldo
patent: 3011579 (1961-12-01), Milliken et al.
patent: 3310284 (1967-03-01), Inaba et al.
Friaglia Leo
Nissan Motor Co,. Ltd.
Pekar John A.
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