Method to determine an optimized shift point, in particular...

Details Method to determine an optimized shift point, in particular... Method to determine an optimized shift point, in particular...

2011-03-29

2011-03-29

Keith, Jack (Department: 3663)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Transmission control

C070S060000, C070S061000, C070S064000, C477S070000

Reexamination Certificate

active

07917267

ABSTRACT:
In order to determine an optimized upshift point, it is proposed that a control circuit, on the basis of a current engine operating point (TQCUR;N) calculates a new engine operating point (TQNEW; NNEW) produced when shifting up at approximately the same vehicle speed, wherein the current engine operating point is determined as the optimized upshift point if the calculated new engine operating point is below a preset upper torque limit (TQ_MAX_LIM) and is at the same time above a preset lower engine speed limit (N_MIN_x+1) for the higher gear.

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English translation of DE 196 25 936 A.
German Office Action, German application No. 10 2007 044 401.1-14, 3 pages.

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