INTERNAL COMBUSTION ENGINE AND ITS CONTROL METHOD AND VEHICLE

摘要

On incompletion of port learning (step S200), an auto stop-permitting water temperature Tw is set to a temperature Tw2, which is higher than a temperature Tw1 set on completion of the port learning and is higher than a port injection temperature Twp as an upper limit temperature that enables an engine to be driven in a port injection drive mode (step S220). This arrangement increases the opportunity of continuing the operation of the engine with fuel injection from a port fuel injection valve without an auto stop, thus increasing the opportunity of the port learning.