Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kenichi Machida0
Date of Patent
December 18, 2007
0Patent Application Number
110498680
Date Filed
February 4, 2005
0Patent Primary Examiner
Patent abstract
An engine control unit diagnoses whether or not a unit that controls a variable valve apparatus is failed, and when it is diagnosed that the unit is failed, the engine control unit shuts off the power supply to a drive circuit for an actuator of the variable valve apparatus.
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