Vehicle speed control

Details Vehicle speed control Vehicle speed control

1974-10-03

1976-12-28

Betts, Kenneth H.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

123103R, B60K 3100

Patent

active

039996220

ABSTRACT:
A pneumatic speed control device for an automotive vehicle that derives its power from a vehicle engine manifold vacuum and is an adaptive control which maintains a constant vehicle speed by means of changing the throttle position due to a deviation from vehicle speed which has been selected by the driver. This device includes a differential control valve for controlling a vacuum signal leading to a bellows actuating the throttle linkage of the vehicle and a speed sensing device including a control valve for a vacuum signal proportional to the vehicle speed and communicating with one side of a diaphragm in the differential control valve; the opposite side of the diaphragm communicating with an accumulator of a fixed volume which receives the vacuum signal from the speed sensing device and is isolated therefrom once the desired cruising speed is reached.

REFERENCES:
patent: 3198280 (1965-08-01), Ostrom
patent: 3249176 (1966-05-01), Dangler
patent: 3322227 (1967-05-01), Thorner
patent: 3368640 (1968-02-01), Bremer et al.

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