Vehicle speed-control system and actuator device

Details Vehicle speed-control system and actuator device Vehicle speed-control system and actuator device

1980-04-02

1982-06-29

Peters, Jr., Joseph F.

Motor vehicles

With means responsive to speed of vehicle for maintaining...

Including fluid pressure actuated servomechanism

116138, 123360, B60K 3100

Patent

active

043368573

ABSTRACT:
A motor vehicle speed-control system includes a bellows chamber having a movable wall connected to the engine throttle. The pressure of the gas in the chamber is controlled by two electromagnetic valves, the first electromagnetic valve being energized with electrical pulses to repetitively connect the bellows chamber alternatively to atmosphere and vacuum, and the second electromagnetic valve being spring-biassed so that, when deenergized, it vents the chamber to atmosphere to ensure rapid closure of the throttle, and when energized, closes the said vent. An auxiliary fail-safe brake-pedal valve is provided. An audible signal is produced by a flow of air in the event of malfunctioning of the actuator device.

REFERENCES:
patent: 1284920 (1918-11-01), Nielson
patent: 1484144 (1924-02-01), Marsh
patent: 3157244 (1964-11-01), McMurray et al.
patent: 3381771 (1968-05-01), Granger et al.
patent: 3556245 (1971-01-01), Radin
patent: 3722614 (1973-03-01), Sakakibara et al.
patent: 4218997 (1980-08-01), Hunt

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