Patent ID: 7137919
Filing Date: 2006-11-21
Classification: B60K,F16H,Y02T

Abstract:
1. A planetary transmission comprising: an engine driven input shaft; an output mechanism including first and second selectively engageable clutches; a stationary member; a first planetary gearset having a first gear member, a second gear member, and a third gear member; first means for selectively interconnecting each of said first, second, and third members of said first planetary gearset with each of said input shaft, said output mechanism, and said stationary member; a second planetary gearset having a first gear member, a second gear member, and a third gear member; second means for selectively connecting each of said first, second, and third members of said second planetary gearset with each of said input shaft, said output mechanism, and said stationary member; said first means and said first clutch being selectively operable to establish five forward speed ratios between said input shaft and said output mechanism; said second means and said second clutch being selectively operable to establish five forward speed ratios between said input shaft and said output mechanism; and said second means being operable to preselect a forward ratio in the operation of an adjacent forward ratio in said first planetary gearset, and said first means being selectively operable to preselect a forward ratio during the operation of an adjacent forward ratio in said second planetary gearset.