Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 27, 2009
Patent Application Number
12135389
Date Filed
June 9, 2008
Patent Primary Examiner
Patent abstract
Systems and methods are described for controlling engine operation of an engine that may be shut-down during engine idle stop conditions. The engine may include a high pressure direct injection fuel system. In one embodiment, a method comprises during at least a first fuel rail temperature below a threshold, automatically stopping engine operation during a selected engine idle stop condition; and during at least a second fuel rail temperature above the threshold, maintaining engine operation during the selected engine idle stop condition.
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