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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 347 (Hybrid/EV Control System) >> Description and Operation >> Hybrid Modes of Operation Description >> Electric Launch/Assist

Electric Launch/Assist

WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.

The transmission assembly contains two 300 V drive motor generator assemblies. These powerful 60 kW drive motor generators are capable of propelling the vehicle while the engine is in the Autostop mode or they may assist an already running engine. Depending upon accelerator pedal position, the vehicle may be propelled solely with the electric drive motor generators at speeds exceeding 41 km/H (26 mph) before assistance from the engine is required. The engine will Autostart when driving conditions require engine assistance. During engine running conditions, the torque provided by the drive motor generators is supplemented with the engine torque output.