Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 9, 2018
Patent Application Number
15608806
Date Filed
May 30, 2017
Patent Citations Received
Patent Primary Examiner
Patent abstract
Systems and methods for determining operation of a cylinder deactivating/reactivating device are disclosed. In one example, a direction of engine rotation is selected to maximize air flow through the engine while the engine is rotated without combusting air and fuel. Operation of one or more cylinder valve deactivating mechanisms is assessed while the engine is rotated without combusting air and fuel.
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