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Found this while looking for info on DFCO

GM's future plans for hybrids. Haven't seen this on any other boards.

Hybrid Technologies Challenge Bibendum HEV Round Table

http://www.challengebibendum.com/challengeBib/document.DocumentRepositoryServlet?codeDocument=3810&codeRepository=MICHA&codeRubrique=RT2007DET

4 solenoid actuated wet plate clutches! Sure that will be a trouble free transmission.

Hi James:

___See the CleanMPG Previews the 2008 GMC Yukon 2-Mode Hybrid. (http://www.cleanmpg.com/forums/showthread.php?t=7448)

http://www.cleanmpg.com/photos/data/523/EVT_-_Schematic.jpg

GM’s all-new 2-Mode hybrid drivetrain is a unique assembly consisting of two 60 kW electric motors, three planetary gearsets and four traditional hydraulic wet clutches (C1 - C4). Also shown is the transmission hydraulic pump and input shaft damper, which take the place of a traditional torque converter.

___It appears to be very robust. Over the long term however …

___Good Luck

___Wayne