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

Green Car Congress

FEBRUARY 11, 2009

GM has simplified the two-mode hybrid system for application in front-wheel drive vehicles—the Saturn VUE being the first instance ( earlier post )—while retaining its functionality and capability, according to Mark Selogie, Senior Manager Power Electronics, GM Powertrain, speaking at the SAE Hybrid Symposium in San Diego (11-12 Feb).

VUE

VUE GM San Diego Hybrid

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

Green Car Congress

FEBRUARY 10, 2010

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. Power dominates cost in HEV (high P/E ratio) batteries.

NiMH

NiMH Energy Storage VUE Saturn

EV Driven

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

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

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