ENGINE CONTROLLER

摘要

An electronic controller (50) judges whether the atmosphere in the vicinity of an oxygen concentration sensor (55) in an exhaust passage (30) became atmospheric state or not as fuel cut is performed. If the atmosphere in the vicinity of the oxygen concentration sensor (55) is in atmospheric state, the electronic controller (50) performs learning processing for storing the detection value C of the oxygen concentration sensor (55) as a leaning value Cstd in a memory (56). The electronic controller (50) continues the learning processing until a predetermined period set based on the exhaust gas transportation lag elapses after end of fuel cut.