Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Transmission control
Reexamination Certificate
2011-08-30
2011-08-30
Hellner, Mark (Department: 3663)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Transmission control
C701S054000, C701S069000, C701S022000, C903S945000
Reexamination Certificate
active
08010263
ABSTRACT:
A multivariate control method and system to control torque output from a powertrain system to a driveline is provided, to reduce driveline oscillations. The powertrain preferably comprises hybrid powertrain having a plurality of torque-generative devices connected to a transmission. Desired powertrain and driveline operating states are determined, as are a plurality of operating state errors. Each torque-generative device is controlled, based upon the operating state errors, and operating mode of the transmission. A damping torque command, additive to a commanded torque, is determined for one or more of the torque-generative devices based upon the determined transmission operating mode. Determined operating states include operator input, and powertrain/driveline including driveline torque; transmission input torque, rotational speed of the torque-generative devices; road load; and, accessory load.
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Algahaim Helal A
GM Global Technology Operations LLC
Hellner Mark
LandOfFree
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