Gm Global Technolgoy Operations, Inc.

Daimlerchrysler Corporation

Tejinder Singh

Patrick S Portell

John A Diemer

James D Hendrickson

Henryk Sowul

Boris Iosifovich Burgman

Pete R Garcia

Douglas John Dwenger

Elizabeth I Wooden

Dan Coffey

James M Hart

Scott H Wittkopp

Clinton E Carey

Edwin T Grochowski

Mikael B Mohlin

David M Zini

Madhusudan Raghavan

Norman K Bucknor

Alan G Holmes

Richard A Pashnik

Joshua E Lehrmann

Daryl A Wilton

Craig S Ross

Joel M Maguire

Brian W Whitmarsh

Randal William Arndt

Arvo J Siismets

Kent H Kienzle

Kent Johnson

Ted T Selever

Brian E Tooman

Rima Philippin

A transmission is connectable to an input member and includes an output transfer gear, first and second transmission input shaft members, first, second and third countershaft members, a plurality of co-planar gear sets, and a plurality of torque transmitting devices. The torque transmitting devices include a plurality of synchronizer assemblies and a dual clutch assembly. The transmission is operable to provide at least one reverse speed ratio and a plurality of forward speed ratios between the input member and the output member.

Multi-speed dual clutch transmission

A transmission is connectable to an input member and includes an output transfer gear, first and second transmission input shaft members, first and second countershaft members, a plurality of co-planar gear sets, and a plurality of torque transmitting devices. The torque transmitting devices include a plurality of synchronizer assemblies and a dual clutch assembly. The transmission is operable to provide at least one reverse speed ratio and a plurality of forward speed ratios between the input member and the output member.

A transmission having a rotating clutch pack assembly is provided, The rotating clutch pack having an interconnecting member, a plurality of friction discs, a rotating member, a first and a second axial bearing, and a biasing member. The interconnecting member is connected for common rotation with a member of the planetary gear set. The rotating member is connected to the second set of friction discs for common rotation. The first axial bearing is disposed between the clutch piston and the plurality of friction discs and the second axial bearing is disposed between the plurality of friction discs and the transmission housing. The biasing member is disposed between the interconnecting member and the rotating member. A clutch piston selectively applies an axial force through the first axial bearing, the plurality of friction discs, and the second axial bearing to the transmission housing.

Rotating clutch pack assembly

A continuously variable automatic transmission having a direction selection mechanism with both friction and binary torque transmitting devices. The transmission includes a torque converter which drives a ring gear of a planetary gear assembly. The sun gear of the planetary assembly drives the input of a variable ratio device. In one embodiment, the friction brake is disposed between a planetary gear carrier and a stationary housing or ground and is engaged to provide reverse direction of travel. The binary clutch is disposed between the ring gear and the planet carrier and, when engaged, locks the planetary gear assembly and provides forward direction of travel. In other embodiments, a binary brake is disposed between the planetary gear carrier and the housing and is engaged to provide reverse travel and a friction clutch is disposed between the ring gear and the planet carrier and, when engaged, locks the planetary assembly and provides forward travel.

Continuously variable transmission with direction selection mechanism

A transmission includes an input member, an output member, first and second interconnecting members, first and second countershaft members, a plurality of co-planar gear sets, and a plurality of torque transmitting devices. The torque transmitting devices include a plurality of synchronizer assemblies and a dual clutch assembly. The transmission is operable to provide at least one reverse speed ratio and a plurality of forward speed ratios between the input member and the output member.

Seven speed dual clutch transmission

A multi-mode continuously variable transmission (CVT) for a motor vehicle includes a transmission input member, a transmission output member, a planetary gear set, a forward clutch, a brake, and a continuously variable unit having a first pulley, a second pulley, and an endless member wrapped around the first pulley and the second pulley. A first transfer gear set is connected to the transmission output member. A second transfer gear set is connected to the transmission output member. A dual clutch assembly is provided having a first clutch and a second clutch, wherein the first clutch selectively connects the second pulley to the first transfer gear set and the second clutch selectively connects the second pulley to the second transfer gear set. The dual clutch assembly provides two modes or ranges of continuously variable speed ratios between the transmission input member and the transmission output member.

Multi-mode continuously variable transmission with selectable transfer gears

A dual mass flywheel and dual clutch module assembly includes a connector plate and a drive plate. The connector plate is fastened to a center plate of the dual clutch module and has a plurality of castellation tabs disposed on an inner periphery of the connector plate. The drive plate drivingly connected to a flywheel member of the dual mass flywheel and includes a plurality of castellation tabs disposed on an inner periphery of the drive plate. The plurality of castellation tabs of the connector plate are interleaved with the plurality of castellation tabs of the drive plate.

Flywheel and dual clutch module assembly

A transmission having a rotating clutch pack assembly is provided, the rotating clutch pack having an interconnecting member, a plurality of friction discs, a rotating member, a first and a second axial bearing, and a biasing member. The interconnecting member is connected for common rotation with a member of the planetary gear set. The rotating member is connected to the second set of friction discs for common rotation. The first axial bearing is disposed between the clutch piston and the plurality of friction discs and the second axial bearing is disposed between the plurality of friction discs and the transmission housing. The biasing member is disposed between the interconnecting member and the rotating member. A clutch piston selectively applies an axial force through the first axial bearing, the plurality of friction discs, and the second axial bearing to the transmission housing.

A two mode automatic transmission for a motor vehicle includes a variable ratio component, a plurality of planetary gear assemblies, a chain drive assembly and a plurality of torque transmitting devices. A first planetary gear assembly is associated with an input shaft, a first clutch and a first brake and provides forward and reverse gears. The variable ratio component is driven by the output of the first planetary gear assembly and drives the second planetary gear assembly. The second planetary gear assembly, which may be either a simple or compound planetary assembly, is associated with a second clutch and a second brake and drives the chain drive assembly. The output of the chain drive assembly drives a third planetary gear assembly which is associated with an output shaft.

Two mode continuously variable transmission

A transmission has an input member, an output member, at least four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches, a one-way clutch and brakes actuatable in combinations of two to establish a plurality of forward gear ratios and at least one reverse gear ratio.

Multi-speed transmission

A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. The torque transmitting devices include clutches and brakes including a selectable one-way clutch actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio.

A transmission includes an input member, an output member, at least four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes that are actuated in various combinations to establish a plurality of forward gear ratios and a reverse gear ratio.

Multi-speed transmission gear and clutch arrangement

A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio.

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Commerce Township, MI, United States of America

Tejinder Singh