Control process for motor according to the degree of fouling of the spark plugs, and device therefor

摘要

The spark plug ignition system has an induction winding and a fuel injector driven by an electronic computer The method includes a number of detection phases by the computer, of the spark plug condition and comparison of this condition with a set alerting level, corresponding to a secondary current loss. This secondary current loss is caused by spark plug deterioration and which occurs when at the time of establishment of the high voltage in the secondary winding of the induction coil as a result of which the computer modifies the ignition advance and/or the injection time, on the cylinder or cylinders associated with spark plug deterioration, so as to reduce spark plug wear. An Independent claim is also included for a spark plug wear sensor.