Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
December 8, 2009
Patent Application Number
11349912
Date Filed
February 9, 2006
Patent Primary Examiner
Patent abstract
A pulse signal output from a crank angle sensor is counted from start of an engine starting operation, and whether or not an engine rotation is started is determined at the time when the count result reaches a predetermined number. When the determination of the rotation start is made, a variable valve actuation mechanism is permitted to be driven.
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