Motor vehicles – With means responsive to speed of vehicle for maintaining... – Including fluid pressure actuated servomechanism
Patent
1986-11-14
1988-04-19
Mitchell, David M.
Motor vehicles
With means responsive to speed of vehicle for maintaining...
Including fluid pressure actuated servomechanism
180179, B60K 3106
Patent
active
047383313
ABSTRACT:
A speed control device for a motor vehicle uses a conventional DC electric motor. The motor has a freewheeling shaft, unless power is supplied. An advancing linkage connected between the shaft and throttle advances the throttle when power is supplied. A piston in a cylinder is connected to the shaft also, to selectively prevent the shaft from rotating in a retracting direction when power is off. A microcomputer opens a valve to allow the piston to move outward in the cylinder when a speed decrease is desired.
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Bradley James E.
Finlay Tamara L.
Mitchell David M.
Specific Cruise Systems, Inc.
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