EGO BASED ADAPTIVE TRANSIENT FUEL COMPENSATION FOR A SPARK IGNITED ENGINE

摘要

A method and system for adaptive transient fuel compensation in a cylinder of an engine (300) estimates a fraction of fuel evaporated in a fuel intake system of the engine bv by measuring a temporal delay (515) between when an identification fuel charge is injected (505) and when a binary-type exhaust gas oxygen sensor (315) switches state. An estimate of a fraction of fuel adhering to the fuel intake system of the engine c is derived from the estimate of bv. Fuel delivery to the engine is adjusted dependent on the estimates of c and bv.