Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1977-08-01
1978-10-24
Peters, Jr., Joseph F.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
123103R, 137 47, B60K 3100
Patent
active
041216857
ABSTRACT:
An apparatus for controlling the traveling speed of a motor vehicle with an electric control unit acted upon by a speed dependent signal, which unit compares the actual traveling speed with a predetermined desired traveling speed, and upon a deviation transmits a signal which is dependent on the size of the deviation to a control stage. The control stage comprises a pneumatic actuator which acts on an element, preferably a throttle valve, which influences the ratio of a fuel-air mixture fed to the motor of the vehicle, as well as two electromagnetically actuatable valves coordinated to the actuator, the valves enabling the actuator to be admitted with reduced- and above atmospheric- pressure, respectively, or reduced- and normal pressure, respectively. The control stage includes an electromagnetic system, which system comprises a U-shaped yoke carrying an excitation coil and an armature immerging between the legs of the yoke. The armature is pivotally mounted for smooth pivoting from a rest position, in which position both of the two valves are closed, against the force of a spring, which force is dependent on the stroke of the actuator, into operating positions, respectively, in which positions one of the two valves is opened and the other valve is closed. The armature is supported by two axially adjustable pivot pins on a stationary bearing surface and is controlled at least on one free end, and a shoulder is provided which limits its movement opposite to the direction of the force of the spring.
REFERENCES:
patent: 3088538 (1963-05-01), Brennan
patent: 3109507 (1963-11-01), McMurray
patent: 3332406 (1967-07-01), Perry
patent: 3340950 (1967-09-01), Hopengarten
patent: 3405779 (1968-10-01), Johnston
patent: 3885644 (1975-05-01), Seidler
patent: 3921751 (1975-11-01), Sakakibara
Farber Martin A.
Peters Jr. Joseph F.
Siemens Terrance L.
VDO Adolf Schindling AG
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