Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Transmission control
Reexamination Certificate
2006-11-29
2010-06-15
Camby, Richard M. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Transmission control
C701S056000
Reexamination Certificate
active
07739017
ABSTRACT:
For controlling an automatic transmission having an electronic control unit and having a power control element, the control unit detects a desired-power signal corresponding to the position of the power control element and, basically as a function of this desired-power signal, causes a change of gear corresponding to the characteristic shifting curves stored in the control unit. The control unit also generates a gradient signal corresponding to the rate of change of the desired-power signal and can—when certain conditions exist—cause a backshift deviating from the characteristic shifting curves as a function of this gradient signal. By way of the control unit, an immediate multiple backshift is initiated as a function of the gradient signal when, as a characteristic shifting curve for a first backshift has been reached, the gradient signal has exceeded at least a first lower limit value.
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German search Report dated Sep. 13, 2006 (Nine (9) pages) Including Translation.
Pfisterer Markus
Reichler Matthias
Bayerische Motoren Werke Aktiengesellschaft
Camby Richard M.
Crowell & Moring LLP
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