Driving force control device of vehicle

Details Driving force control device of vehicle Driving force control device of vehicle

2011-05-24

2011-05-24

Hellner, Mark (Department: 3663)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Transmission control

C701S084000, C701S051000, C477S054000

Reexamination Certificate

active

07949451

ABSTRACT:
A powertrain manager executes a program including the steps of: reading an instruction gear ratio kgear(1) for transmission control; calculating an actual gear ratio kgear(2); determining that failure of an automatic transmission has occurred on a low gear side if relation of kgear(1)<{kgear(2)/α} or kgear(1)<{kgear(2)−β} is satisfied; and substituting larger one of kgear(1) and kgear(2) into a gear ratio for operation.

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