Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
July 27, 2010
Patent Application Number
11646071
Date Filed
December 26, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
A shift control method of an automatic transmission includes the steps of: determining whether a road has a gradient; calculating road gradient in real time; filtering the gradient; controlling shifting according to the greater of calculated and filtered gradients if the calculated gradient is negative; and controlling shifting according to the calculated gradient if the calculated gradient is positive.
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