Ignition control apparatus and method for an internal combustion

Details Ignition control apparatus and method for an internal combustion Ignition control apparatus and method for an internal combustion

1991-05-14

1992-05-26

Nelli, Raymond A.

Internal-combustion engines

High tension ignition system

Having engine component position sensor

123643, 36443107, F02P 900

Patent

active

051157926

ABSTRACT:
A signal generator generates a crank angle reference signal and a cylinder identification signal in synchronism with the rotation of a multi-cylinder internal combustion engine. The crank angle reference signal has high and low levels which change at a first reference crank position and at a second reference crank position of each cylinder. The cylinder identification signal corresponds to a specific cylinder and is out of phase with respect to the crank angle reference signal. The operating position of each cylinder is determined on the basis of the crank angle reference signal and the cylinder identification signal so that the ignition of each cylinder is controlled based on these signals. The ignition control for the cylinders is stopped if there is an abnormality in the crank angle reference signal or in the cylinder identification signal. This improves reliability and stability in the control of the overall system.

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