Axle torque based powertrain braking with range selection...

Details Axle torque based powertrain braking with range selection... Axle torque based powertrain braking with range selection...

2007-05-22

2007-05-22

Tran, Dalena (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Indication or control of braking, acceleration, or deceleration

C477S107000, C701S054000

Reexamination Certificate

active

11036776

ABSTRACT:
A powertrain braking system for a vehicle includes an powerplant that can be regulated to provide a desired powerplant torque and a transmission that transfers the desired powerplant torque at one of a plurality of gear ratios to provide a desired axle torque. A control module calculates an axle torque command based on a powertrain braking request and determines a shift command based on the powertrain braking request. The control module controls the powerplant based on the axle torque command and the transmission based on the shift command to achieve a desired vehicle deceleration rate that corresponds with the powertrain braking request.

REFERENCES:
patent: 4790606 (1988-12-01), Reinecke
patent: 6099430 (2000-08-01), Winks
patent: 6466851 (2002-10-01), Kato et al.
patent: 6507780 (2003-01-01), Graf
patent: 2001/0035049 (2001-11-01), Balch et al.
patent: 2004/0048718 (2004-03-01), Tashiro

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