Patent ID: 6773373
Filing Date: 2004-08-10
Classification: B60W,F16H,Y10S,Y10T

Abstract:
A method for kick-down upshift speed optimization in a motor vehicle with an automatic transmission as a function of road inclination, comprising the steps of:detecting a predetermined upshift speed at which a gear upshift is to be initiated, determining from an output speed an output speed gradient (ng-ab) wherein the output speed gradient reflects a road inclination, determining from the output speed gradient (ng-ab) a speed offset (nd-abkd) representative of a time interval, starting from the detection of the predetermined upshift speed, required for an engine to reach a maximum engine output speed, and applying the speed offset (nd-abkd) as an adjustment the upshift point speed so that the upshift occurs at a time the engine output speed reaches the maximum engine output speed.