AUTOMATIC START-STOP CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

摘要

When a restart demand has been generated in a period where an engine rotation speed drops through a rotation speed region where starterless start is possible (restart performed by only fuel injection is possible) during fuel cutoff of idling stop control, an autonomous return control where returning to synchronous injection is performed after the first fuel injection is immediately performed with asynchronous injection is performed to perform starterless start where an engine is restarted by only fuel injection without using a starter. Thereby, since fuel of the asynchronous injection is sucked into a cylinder put during an intake stroke at the time of the restart demand generation and ignited near the next compression TDC so that the first combustion (first explosion) is generated, the first explosion can be generated earlier than the conventional first explosion by one stroke.