Internal-combustion engines – Engine speed regulator – Open loop condition responsive
Patent
1988-02-17
1989-05-23
Nelli, Raymond A.
Internal-combustion engines
Engine speed regulator
Open loop condition responsive
123395, 123361, 192 0052, F02D 4104, B60K 4128
Patent
active
048319856
ABSTRACT:
A throttle control system for a vehicle of the type including a throttle body and a throttle valve mounted within the throttle body and controlling the delivery of fuel and/or air to the engine of the vehicle. The invention control sytsem includes a rotary potentiometer providing an output signal representing the instantaneous position of the accelerator pedal of the vehicle; another rotary potentiometer providing an output signal representing the instantaneous angular position of the throttle valve; a comparator receiving the throttle pedal and throttle valve position signals and generating an error signal representing the difference between the two signals; a differential signal representing the rate of change in the error signal; a summer receiving the output signal from the throttle valve potentiometer, the error signal from the comparator, and the differential signal from the differential and generating a summed output signal; and a proportional rotary solenoid which receives the summed output signal from the summer and positions the pivot shaft of the throttle valve in proportion to the received signal.
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Leigh-Monstevens Keith V.
Mabee Brian D.
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