Method and device for an open-loop control system for an interna

Details Method and device for an open-loop control system for an interna Method and device for an open-loop control system for an interna

1992-12-16

1993-12-14

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

F02P 500

Patent

active

052692744

ABSTRACT:
A control system for an internal combustion engine which includes a crankshaft sensor for sensing a crankshaft transmitter disk and a camshaft sensor for sensing a camshaft transmitter disk. Both sensors supply signals to a control device which calculates ignition and injection signals based upon operating parameters, such as engine load and rotational speed, with the rotational speed being based on the signals for the crankshaft sensor or camshaft sensor. In case of crankshaft sensor failure, an emergency function in the control device simulates the crankshaft signals based on the signals from the camshaft sensor. Preferably, the number of segments on the camshaft transmitter disk are equal to the number of cylinders of the engine.

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