Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1976-03-29
1978-02-07
Peters, Jr., Joseph F.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
123102, 180108, 180109, 180110, 361242, B60K 3100
Patent
active
040722066
ABSTRACT:
A motor vehicle speed control system which, upon activation by the vehicle operator, maintains the vehicle at a predetermined set speed. The system utilizes a duty-cycle type pneumatic servoactuator responsive to an electrical control signal for controlling movement of the vehicle throttle. Control means responsive to deviation of vehicle speed from the predetermined set speed, is operable to vary the control signal characteristics in accordance with a predetermined governing equation and the electrical control signal is utilized to operate the servoactuator. Vehicle speed is sensed by a generator providing an electrical signal output and a control means is of the electronic type responsive to the electrical speed signal and the predetermined set speed. In one embodiment both analog-digital circuit techniques are employed for the control means and, in another embodiment, substantially all-digital circuitry is utilized.
REFERENCES:
patent: 3298482 (1967-01-01), Mueller
patent: 3319733 (1967-05-01), Rath
patent: 3381771 (1968-05-01), Granger
patent: 3405779 (1968-10-01), Johnston
patent: 3410362 (1968-11-01), Fales
patent: 3444950 (1969-05-01), Uitvlugt
patent: 3599154 (1971-08-01), Carol
patent: 3715006 (1973-02-01), Walsh
patent: 3722614 (1973-03-01), Sakakibara
patent: 3869019 (1975-03-01), Cardani
Larson Gerald L.
Pi Alberto
Uitvlugt Martin W.
Eaton Corporation
Peters Jr. Joseph F.
Silverstrim John P.
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