CONTROLLER AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

摘要

An ECU determines whether or not an engine water temperature has exceeded a predetermined value (A) (step S100); and actively opens and closes a waste gate valve, and calculates a shift in a learning value amount (step S102). The ECRU (30) determines whether or not the learning value shift amount is sufficiently large to surpass a predetermined value (C) (step S104) and when the determination result is Yes (when the condition is fulfilled), takes in the learning value shift (step S106). The ECRU determines whether or not the engine water temperature is sufficiently low to be below a predetermined value (B) (step S108) and reflects the learning value shift in the air-fuel ratio learning value (step S 110).