Patent ID: 6575866
Filing Date: 2003-06-10
Classification: B60K,B60L,B60W,F16H,Y02T,Y10S

Abstract:
A transmission for a motor vehicle having an engine and a driveline, comprising:an input shaft adapted to be driven by the engine; a mainshaft; an output shaft adapted to drive the driveline; first and second transfer shafts; a first planetary gearset including a first sun gear fixed to said first transfer shaft, a first ring gear, and a set of first planet gears supported from a first carrier fixed to said input shaft; a second planetary gearset including a second sun gear fixed to said second transfer shaft, a second ring gear fixed to said first ring gear, and a set of second planet gears supported from a second carrier that is fixed to said mainshaft; a third planetary gearset including a third sun gear fixed to said mainshaft, a third ring gear, and a set of third planet gears supported from a third carrier that is fixed to said output shaft; a layshaft assembly including a layshaft, a first constant-mesh gearset operably disposed between said layshaft and said second transfer shaft, and a second constant-mesh gearset operably disposed between said layshaft and said third ring gear; and an electric motor driving said layshaft.