Patent ID: 7051693
Filing Date: 2006-05-30
Classification: F02D,F02N,Y02T

Abstract:
1. An engine starting system for restarting an engine having multiple cylinders by injecting fuel at least into one of the cylinders which is on an expansion stroke at engine stop and then igniting and combusting a mixture produced in said expansion stroke cylinder, said engine starting system comprising: an engine stopping section for stopping the engine by interrupting fuel supply to the individual cylinders while the engine is running; a pre-stoppling engine state sensing section for detecting that the engine is in a state immediately before stopping wherein engine speed is lower than a specific value; a restart conditions checking section for judging whether specific engine restart conditions have been satisfied; and an engine restarting section for injecting the fuel into the cylinder which is on the expansion stroke and then igniting and combusting the mixture produced therein if the engine is in the state immediately before stopping when said restart conditions checking section has judged that the engine restart conditions have been satisfied in an engine stopping period which begins at a point of fuel supply interruption by said engine stopping section and ends at a point of complete engine stop.