Overspeed engine control
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 31, 1984
Grant Date -
N/A
app pub date -
Mar 18, 1981
filing date -
Mar 19, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus for controlling the speed of an engine of a vehicle includes a processor (26) for comparing actual speed of the engine with a reference speed and for generating output signals if the actual speed is in excess of the reference speed, the output signals controlling valves (13, 14 and 15) of an air supply system (12) to a retarder of the vehicle and being arranged to operate sequentially to control progressively magnitude of power applied to the retarder if control of the vehicle is not effected to reduce speed of the engine during sequential periods of predetermined duration.
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