Dual throttle control to a single throttle input

Details Dual throttle control to a single throttle input Dual throttle control to a single throttle input

1998-07-17

2000-05-23

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

123399, 180321, B62D 112, F02D 1102

Patent

active

060654481

ABSTRACT:
A dual throttle system for an internal combustion engine includes first foot pedal throttle and a second hand controller throttle. The system includes a throttle position signal generator that produces a throttle position signal at an input to an electronic engine control module (ECM). The engine control module uses the throttle position signal input to determine an engine speed and issues appropriate commands to a fuel system controller. The throttle position generator includes a first potentiometer having its wiper mechanically connected to the first throttle and its output electrically connected to the throttle position signal input of the ECM. The first potentiometer is connected in series between a voltage source in the ECM and the wiper of a second variable resistance component driven by the second throttle. The output of the second component is connected to ground to complete the series circuit. The voltage seen at the throttle signal input of the ECM is a function of the combined series resistances of the potentiometer and the second variable resistance component based upon the positions of the respective throttles.

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