Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Transmission control
Reexamination Certificate
2005-12-27
2005-12-27
Nguyen, Tan Q. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Transmission control
C701S055000, C701S061000, C477S121000
Reexamination Certificate
active
06980898
ABSTRACT:
A turbine acceleration control system for a transmission in a vehicle determines a desired turbine acceleration based on a downshift type and an altitude of the vehicle. The turbine acceleration control system determines a downshift type that results from one of a throttle increase, a manual downshift, or vehicle deceleration. An altitude module determines an altitude of the vehicle. A vehicle controller communicates with one or more lookup tables to determine the desired turbine acceleration based on the downshift type and the altitude. Additionally, current turbine speed and torque converter slip are considered by the controller in determining the desired turbine acceleration.
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Brigham Brandon
Dada Javed
Hosler Nathan
McNeil Michael J
DaimlerChrysler Corporation
Nguyen Tan Q.
Smith Ralph E.
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