Truck Utility & Functionality in the GM 2-Mode Hybrid 2010-01-0826
The present production General Motors 2-Mode Hybrid system for full-size SUVs and pickup trucks integrates truck utility functions with a full hybrid system. The 2-mode hybrid system incorporates two electro-mechanical power-split operating modes with four fixed-gear ratios. The combination provides fuel savings from electric assist, regenerative braking and low-speed electric vehicle operation. The combination of two power-split modes reduces the amount of mechanical power that is converted to electric power for continuously variable transmission operation, meeting the utility required for SUVs and trucks.
This paper describes how fuel economy functionality was blended with full-size truck utility functions. Truck functions described include: Manual Range Select, Cruise Control, 4WD-Low and continuous high load operation.
Goro Tamai, Shannon Reeves, Timothy H. Grewe
GM Powertrain, General Motors LLC
SAE 2010 World Congress & Exhibition
SAE International Journal of Engines-V119-3, Electric and Hybrid-Electric Vehicles - Engines and Powertrains-PT-143/3, Advanced Hybrid Vehicle Powertrains, 2010-SP-2275, SAE International Journal of Engines-V119-3EJ