Motor vehicles – With means responsive to speed of vehicle for maintaining... – Including electrically actuated servomechanism
Patent
1990-07-27
1991-10-15
Herrmann, Allan D.
Motor vehicles
With means responsive to speed of vehicle for maintaining...
Including electrically actuated servomechanism
74440, 123361, F16H 5524
Patent
active
050566130
ABSTRACT:
A vehicle speed control system having phasing circuitry which provides a sequence of electrical phase steps in response to a comparison of actual vehicle speed to a desired vehicle speed. A stepper motor coupled to a pinion shaft rotates by discrete phase steps in response to the phasing circuitry. An anti-backlash/transfer gear assembly includes a first sprocket gear coupled to a second sprocket gear by integrally formed compression or flexure members which hold the sprocket gears together and a spring assembly which displaces the circumferential teeth of the two sprocket gears relative to one another. Another gear assembly couples rotational movement from the stepper motor to the engine throttle.
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Oo Kah S.
Porter David L.
Weber Charles F.
Abolins Peter
Ford Motor Company
Herrmann Allan D.
Lippa Allan J.
Trousdell William O.
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