Motor vehicles – With means responsive to speed of vehicle for maintaining... – Including fluid pressure actuated servomechanism
Patent
1987-05-26
1989-01-03
Mitchell, David M.
Motor vehicles
With means responsive to speed of vehicle for maintaining...
Including fluid pressure actuated servomechanism
180197, 123342, B60K 3110
Patent
active
047950005
ABSTRACT:
A cruise control device for automotive vehicles is disclosed including an actual speed sensor which actuates, by way of a control circuit, the throttle valve of the vehicle motor for keeping the vehicle speed constant. The accelerator pedal can be overridden by a hydraulic control element. A piston rod is arranged inside a stepped piston in an axial through bore and is connected to the throttle valve. The piston rod can be coupled through a ball-type locking mechanism with the stepped piston which is pressurized by the control circuit in such a way that the piston rod is driven by the stepped piston and displaces the throttle valve in an opening direction against the force acting upon the accelerator pedal.
REFERENCES:
patent: 2139832 (1938-12-01), Leibing
patent: 4561517 (1985-12-01), Hilton et al.
Hayn Holger V.
Maas Joachim
Ocvirk Norbert
Alfred Teves GmbH
Camby Richard
Mitchell David M.
Raden James B.
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