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US 8,275,527 B2Granted
Method of modeling transmissions for real-time simulation
AssigneeGM Global Technology Operations LLC
InventorKumaraswamy V. Hebbale
Life of this patent
Estimating the term…
Abstract
A transmission modeling system includes an in-gear module that determines an in-gear acceleration when a vehicle is in gear. A shift module determines a shift acceleration based on a clutch torque when the vehicle is shifting between gears. A shaft acceleration determination module determines a shaft acceleration based on at least one of the in-gear acceleration and the shift acceleration.
Claims20
A transmission modeling system, comprising:
- a transfer torque determination module that determines a transfer torque based on a clutch torque, a transmission input torque, a transmission output torque, and a gear ratio when a vehicle is shifting between gears;
- and
- a shaft acceleration determination module that determines a shaft acceleration based on said transfer torque and a predetermined inertia.
A transmission modeling method, comprising:
- determining a transfer torque based on a clutch torque, a transmission input torque, a transmission output torque, and a gear ratio when a vehicle is shifting between gears;
- and
- determining a shaft acceleration based on said transfer torque and a predetermined inertia.
Dependencies are inferred from the claim text.