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GM Simplifies the Two-Mode Hybrid Transmission, Maintains Functionality for FWD Application

Green Car Congress

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. Click to enlarge. Earlier post.)

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NREL/GM Project Finds Ultracaps Perform as Well or Better Than NiMH Pack for Energy Storage in Mild Hybrid Vehicle

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A National Renewable Energy Laboratory (NREL) project, funded by GM, found that an ultracapacitor-based energy storage system (ESS) in a Saturn VUE BAS (belt alternator starter) mild hybrid performed at least as well or better than the NiMH battery system in the production hybrid. Tags: Batteries Hybrids. Pesaran, A.;

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