Internal-combustion engines – Engine speed regulator – Having condition responsive means with engine being part of...
Patent
1979-05-29
1980-08-19
Cox, Ronald B.
Internal-combustion engines
Engine speed regulator
Having condition responsive means with engine being part of...
180178, F02M 700, F02B 3300
Patent
active
042178673
ABSTRACT:
A governor circuit for limiting the maximum speed of an internal combustion engine is effective to minimize overshoot at all ranges of engine acceleration. The system includes a circuit responsive to the engine speed which provides control signals to a solenoid valve which, in turn, controls a vacuum actuator which can override a manual throttle control to move the throttle toward closed position when a governed engine speed is approached. A control circuit provides a signal having a lead component and an integrated signal which comprises a stabilizing component and an integrated speed component. The integrated signal is provided by an integrator having a low sensitivity and high gain at low engine accelerations and a high sensitivity and low gain at engine accelerations above a predetermined switch point. The resulting control signal controls a duty cycle oscillator which actuates the solenoid valve.
REFERENCES:
patent: 4120373 (1978-10-01), Fleischer
patent: 4134373 (1979-01-01), Kibler
Ely Jeffrey A.
Kibler Roland G.
Madsen Wayne A.
Cox Ronald B.
General Motors Corporation
Hill Warren D.
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