Dual input clutch planetary transmission
AssigneeGeneral Motors Corporation
InventorMichael Colby Sefcik
Life of this patent
Estimating the term…
Loading patent…
AssigneeGeneral Motors Corporation
InventorMichael Colby Sefcik
Estimating the term…
A dual input planetary transmission has at least two planetary gearsets, two input clutches, five synchronizer clutches, and two brake mechanisms. The planetary gearsets each have one member continuously interconnected with a transmission output shaft and at least one member selectively connectible with a transmission input shaft through the input clutches and at least of two of the synchronizer clutches. The synchronizer clutches also provide selective interconnections of members of one of the planetary gearsets with members of the other of the planetary gearsets. The input clutches are interchanged during a speed ratio interchange and at least one synchronizer clutch is manipulated to preselect the on-coming speed ratio. The input clutches, synchronizer clutches, and brake mechanisms are engaged in various combinations to establish at least six forward speed ratios and one reverse speed ratio.
A powertrain including a power transmission comprising:
Dependencies are inferred from the claim text.