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US 2015/0308552 A1Published application
Split input continuously variable transmission
AssigneeGM Global Technology Operations LLC
InventorsEDWARD W. MELLET, JAMES M. HART
Life of this patent
Estimating the term…
Abstract
A two mode CVT is provided that for a motor vehicle. The CVT includes a speed change device connected to a pulley and belt assembly. The pulley and belt assembly is connected to a planetary gear set arrangement. The planetary gear set arrangement generally includes two planetary gear sets, two brakes, and one clutch. The planetary gear set arrangement is connected to a final drive unit.
Claims20
A continuously variable transmission comprising:
- an input member;
- an output member;
- a continuously variable unit connected to the input member;
- a gearbox connected to the continuously variable unit and to the output member;
- and
- a split input clutch connected between the input member and the gearbox for selectively connecting the input member with the gearbox during high gear speeds.
3 more elements
A continuously variable transmission comprising:
- an input member;
- an output member;
- a continuously variable unit having a first pulley, a second pulley, and an endless belt disposed between the first pulley and the second pulley, wherein the first pulley is directly connected to the input member;
- a planetary gear assembly having a plurality of members, wherein a first member is connected to the second pulley of the continuously variable unit and a second member is connected to the output member;
- and
- a split input clutch connected to the input member and to a third member of the planetary gear assembly.
3 more elements
A continuously variable transmission comprising:
- an input member;
- an output member;
- a continuously variable unit connected to the input member;
- a planetary gear assembly including a first planetary gear set and a second planetary gear set, wherein the first planetary gear set includes a first member, a second member, and a third member and the second planetary gear set includes a first member, a second member, and a third member, wherein the third member of the first planetary gear set is connected to a first brake, the first member of the first planetary gear set and is connected to a second brake, the first member of the second planetary gear set is connected to the continuously variable unit, and the second members of the first and second planetary gear sets are interconnected to the output member;
- and
- a split input clutch connected to the input member and to the third member of the second planetary gear set for receiving torque therefrom when the split input clutch is engaged.
3 more elements
Dependencies are inferred from the claim text.