AUTOMATIC START-STOP CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

摘要

When a restart is requested in a period wherein the rotation speed of an engine descends within a rotation speed range in which the engine can be restarted without a starter (the engine can be restarted by only a fuel injection), during a fuel cutoff for an idling stop control, an independent return control is performed, i.e., an initial fuel injection is performed immediately and asynchronously before being returned to a synchronous fuel injection, and a starter-less start by which the engine is restarted by only a fuel injection without using a starter, is performed. Thus, when a request for restart arises, the asynchronously injected fuel is sucked to a cylinder in an air intake stroke, and is ignited in the vicinity of a subsequent compression TDC, to generate an initial combustion (initial ignition). Accordingly, the initial ignition can be generated one stroke earlier than ever before.