Interrelated power delivery controls – including engine control – Transmission control – Transmission controlled by engine
Reexamination Certificate
2006-03-21
2006-03-21
Pang, Roger (Department: 3681)
Interrelated power delivery controls, including engine control
Transmission control
Transmission controlled by engine
C477S148000, C477S094000
Reexamination Certificate
active
07014592
ABSTRACT:
A method for controlling an automatic transmission in a vehicle is provided. The method selectively provides automatic engine braking for the vehicle. When it is determined that automatic engine braking is desired, the upshift schedule is increased, such that a higher vehicle speed is required to upshift for any given accelerator pedal position. The transmission is automatically downshifted to a lower gear to provide engine braking for the vehicle, when a vehicle acceleration threshold is exceeded. The automatic downshifting of the transmission can occur when the brake pedal is engaged, and when the brake pedal is disengaged.
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Nickerson Kurt
Palansky Bruce
Riedle Bradley
Sovel Ken
Suter Charles
Brooks & Kushman
Ford Global Technologies LLC
Kelley David B.
Pang Roger
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