发明名称 Engine start control apparatus
摘要 An engine start control apparatus includes a crank angle sensor, and a stroke discrimination device that discriminates which of engine cylinders is in intake or compression strokes in an engine stopped state. A crankshaft is temporarily reverse-rotated in a reverse-rotational direction by way of crankshaft reverse-rotation control until an intake valve becomes shifted from a valve closed state to a valve open state, when cranking the engine for startup under a specific condition where a crankangle of an engine cylinder whose piston stroke is in the intake stroke or in the compression stroke, is within a specified crankangle range from 40 degrees of crankangle before a piston B.D.C. position to 40 degrees of crankangle after the piston B.D.C. position. The crankshaft is rotated in a normal-rotational direction by way of crankshaft normal-rotation control after the intake valve has been shifted to the valve open state.
申请公布号 US2006081207(A1) 申请公布日期 2006.04.20
申请号 US20050249451 申请日期 2005.10.14
申请人 HITACHI, LTD. 发明人 NAKAMURA MAKOTO
分类号 F02N11/08;F02N99/00;F02D13/02;F02D41/06;F02D45/00 主分类号 F02N11/08
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