Method and device for regulating the richness of an air / fuel feeding an internal combustion engine.

摘要

The device according to the invention comprises a OXYGEN SENSOR LOCATED IN THE POWER OF ENGINE EXHAUST GASES (2) to provide a signal BIESTABLE SL REPRESENTING THE WEALTH air / fuel into the engine. ON DIRECT BYPASS CIRCUIT IS A SAMPLER (4) and a corrector (5) provides a signal DTID TO CORRECT AN INJECTION TIME ESTIMATED (TIS), BEING CONTROLLED THE SUM (TI) of these signals, which is sampled (EN 7) BEFORE OPENING A fuel injector FORMING PART OF MOTOR (2). ACCORDING TO THE INVENTION IN THE TIME OF SAMPLING, THE CORRECTION (5) provides additional CORRECTION DTIDN TO OBEY TO RECURRING LAW TAKING THE FORM OF A COMBINATION LINEAR AT LEAST ONE OF THE DTIDN-K VALORE CORRECTIONS REALIADAS IN MOMENTS TO IMMEDIATELY PRECEDING THE SAMPLING AND INVENTORY VALORE SIGNAL SL in at least one of these moments immediately preceding the sampling and present.