Internal-combustion engines – Engine speed regulator – Having condition responsive means with engine being part of...
Patent
1983-10-18
1985-01-29
Cox, Ronald B.
Internal-combustion engines
Engine speed regulator
Having condition responsive means with engine being part of...
123351, 123198D, 123335, 180169, 180179, 180170, F02D 1110
Patent
active
044959133
ABSTRACT:
An electronic circuit for disengaging an electronic speed control system when the rate of change of the automobile engine speed exceeds a predetermined amount is disclosed. A ferrite or powdered iron ring current transformer generates an input signal to the electronic circuit from one of the spark plug wires in the engine. The pulses from the ring current transformer are passed through a monostable multivibrator circuit and a filter network to a differentiator. The output of the differentiator is connected to a high limit detector and a low limit detector. When the rate of change of engine speed exceeds a predetermined amount, a signal is generated to disengage the speed control circuit.
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Cox Ronald B.
Dana Corporation
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