GM Simplifies the Two-Mode Hybrid Transmission, Maintains Functionality for FWD Application
Green Car Congress
FEBRUARY 11, 2009
Simplified schematic of different hybrid systems. The RWD version of the two-mode used to power the full-size SUV and pickup hybrid models incorporates two motors, three planetary gearsets and four clutches. The use of the concentrated-type winding motor reduced stator inturns from 62 mm to about 30 mm per machine.
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