Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Transmission control
Reexamination Certificate
2006-10-10
2006-10-10
Camby, Richard M. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Transmission control
C701S051000, C701S058000, C701S063000, C192S003510
Reexamination Certificate
active
07120531
ABSTRACT:
A default value of transmission input speed in a motor vehicle powertrain having an automatic-shift multi-gear ratio power transmission is continuously updated based on a measured value of the input speed and other reliable speed data including transmission output speed and engine speed. The default value is substituted for the measured input speed when a malfunction of the input speed sensor is detected, and transitions back to the measured input speed when the input speed sensor malfunction is no longer present.
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Breidenbach Hallett D.
Dues David Allen
Herman Andrew D.
Melby Steve L.
Simpson Kenneth M.
Camby Richard M.
Marshall Paul L.
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