Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Graeme A. Jackson0
Date of Patent
November 24, 2009
0Patent Application Number
117023610
Date Filed
February 5, 2007
0Patent Primary Examiner
Patent abstract
A vehicle powertrain comprising a multiple speed transmission with ratio range gearing is disclosed. The range gearing provides increased ratio coverage. A transition between a low speed range and a high speed range is achieved with no torque interruption whereby a gear ratio shift between the highest gear ratio in the low speed range and the lowest gear ratio in the high speed range occurs in a seamless fashion.
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