Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Transmission control
Patent
1998-08-19
1999-09-21
Louis-Jacques, Jacques H.
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Transmission control
701 57, 701 65, 477 97, 477 43, G06G 770
Patent
active
059547774
ABSTRACT:
The invention is directed to a system for determining the gear ratio changes in an automatic transmission in a vehicle having an accelerator pedal actuated by a driver of the vehicle. The system includes a first sensor for detecting the position (DK) of said accelerator pedal as a first variable and a second sensor for detecting at least one of the following as a second variable: the vehicle straight-line speed (V.sub.x), transmission output rpm and the motor rpm. An adaptation variable (BZ) is determined in an evaluation mode in dependence upon a comparison of a time-dependent change of the first variable to at least one threshold value (SW, SW1, SW2). A characteristic field receives the first and second variables as input variables. The characteristic field and the adaptation variable (BZ) are used to form a gear ratio change (SG) for the automatic transmission.
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Cao Chi-Thuan
Kronenberg Klemens
Poljansek Marko
Louis-Jacques Jacques H.
Ottesen Walter
Robert & Bosch GmbH
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