Patent ID: 6015363
Filing Date: 2000-01-18
Classification: F16H

Abstract:
An automatic transmission comprising a housing; a planetary gear train mounted within the housing; an input drive shaft for providing input drive to the planetary gear train; an output drive shaft connected with an output drive from the planetary gear train; a first clutch connected between the input drive shaft and a first drive input to the planetary gear train; a second clutch connected between a first reaction input to the planetary gear train and the housing; a third clutch connected between a second reaction input to the planetary gear train and the housing; a fourth clutch connected between a third reaction input to the planetary gear train and the housing; and a fifth clutch connected between a second drive input to the planetary gear train and the input drive shaft; wherein for first forward gear ratio the first and second clutches are engaged; for second forward gear ratio the first, second and third clutches are engaged; for third forward gear ratio the first, second, third and fourth clutches are engaged; and for fourth forward gear ratio the first, second, third, fourth and fifth clutches are engaged.