Gm Global Technolgoy Operations, Inc.

Douglas Scott Burchett

Kenneth D Schoch

Gregory W Kempf

William S Reed

Michael D Foster

Fredrick R Poskie

Timothy J Reinhart

Kevin Beckner

Frederick W Rhoads

Rayman Eton Bazilio

A clutch assembly includes a first set of clutch plates and a second set of clutch plates interweaved with the first set of clutch plates. The second set of clutch plates is coupled to a rotatable inner hub, and a stationary backing plate is mounted about the inner hub. The first set of clutch plates is coupled to the backing plate such that the first set of clutch plates and the second set of clutch plates are compressed together with one of the first set or the second set of clutch plates abutting against the backing plate when the clutch assembly is engaged. The clutch assembly further includes a connecting hub coupled to the inner hub, such that the connecting hub supports the stationary backing plate with a bearing disposed between the connecting hub and the backing plate.

Clutch backing plate for bearing support

A transmission of the present invention has 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 a sun gear, a carrier member supporting a plurality of planet pinion gears and a ring gear member. The torque transmitting devices may include clutches and brakes. The torque transmitting devices are selectively engageable in combinations of at least three to establish a plurality forward speed ratios and at least one reverse speed ratio.

Multi-speed transmission

A clutch assembly for a hybrid vehicle includes a clutch assembly including a first housing comprising a first clutch, a first clutch actuator and a second housing having the first clutch actuator at least partially disposed therein so that said first clutch actuator selectively engages the first clutch.

Dual housing clutch assembly for a hybrid vehicle

A transmission includes an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque-transmitting devices. A hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input member and other coupling members.

Torque-transmitting mechanism having a compact piston and spring assembly

A clutch assembly and method of operating the clutch assembly to start an engine of a hybrid vehicle includes a first clutch and a first clutch actuator for selectively engaging the first clutch. The first actuator has a first at-rest position engaging the clutch and a hydraulically charged position disengaged from the first clutch. The clutch assembly further includes a second clutch actuator having a second at-rest position away disengaged from the first clutch and a second hydraulically charged position engaged with the first clutch.

Hydro-mechanical clutch for a hybrid transmission and method for operating the same

A modular transmission assembly includes a transmission housing that defines a hollow interior. The transmission housing extends along a central axis between a front end and a rear end. A rear motor module is disposed in, and is operatively connected to, the transmission housing. An inner module is disposed in, and is operatively connected to, the transmission housing. A main shaft is disposed along the central axis such that each of the rear and inner modules radially surround the main shaft. A front motor is disposed in the transmission housing and radially surrounds the main shaft. The inner module is axially disposed between the rear motor module and the front motor. An input module is connected to the front end of the transmission housing. The front motor is axially disposed between the inner module and the input module.

Growing community of inventors

Indianapolis, IN, United States of America

Douglas Scott Burchett