Allison Transmission, Inc.

Honda Motor Co., Ltd.

Jorg Muller

Rico Resch

Mirko Leesch

Soichi Sugino

Kohei Iizuka

Noriaki Saitoh

Mariko Shibamura

Shoji Machida

Toshikazu Kouno

The present disclosure provides a multiple speed transmission having an input member, an output member, a plurality of planetary gearsets, a plurality of interconnecting members and a plurality of torque-transmitting mechanisms. The plurality of planetary gear sets includes first, second and third members. The input member is continuously interconnected with at least one member of one of the plurality of planetary gear sets, and the output member is continuously interconnected with another member of one of the plurality of planetary gear sets. At least eight forward speeds and one reverse speed are achieved by the selective engagement of the five torque-transmitting mechanisms.

Multi-speed transmission

The present disclosure provides a multiple speed transmission having an input member, an output member, a plurality of planetary gearsets, a plurality of interconnecting members and a plurality of torque-transmitting mechanisms. The plurality of planetary gear sets includes first, second and ring gears. The input member is continuously interconnected with at least one member of one of the plurality of planetary gear sets, and the output member is continuously interconnected with another member of one of the plurality of planetary gear sets. At least eight forward speeds and one reverse speed are achieved by the selective engagement of the five torque-transmitting mechanisms.

An automatic transmission includes an input shaft, an output member, a first planetary gear system, a second planetary gear system, a third planetary gear system, a fourth planetary gear system, and an engagement mechanism. The input shaft is configured to be rotated with power of a driving source relative to the transmission case. The output member is to output rotation of the input shaft using multiple gear-shifting. The multiple gear-shifting is provided by setting at least three of first to third clutches and first to third brakes in a connection state.

Automatic transmission

An automatic transmission includes an input shaft, an output member, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, and an engagement mechanism. Each of a plurality of gear ratios is provided by setting at least three of first to third clutches and first to third brakes in a connection state.

Provided is an automatic transmission capable of reducing friction loss. The automatic transmission is provided with an input shaft () coupled with a sun gear (Sa), an output member (), a first to third planetary gear mechanisms (), a first engagement mechanism (C) coupling the input shaft () with a ring gear (Rc) releasably, a second engagement mechanism (C) coupling a carrier (Ca) with a carrier (Cc) releasably, a third engagement mechanism (C) coupling the carrier (Ca) with a second coupling body (Rb-Sc) releasably, a fourth engagement mechanism (B) fixing a first coupling body (Ra-Cb) to a transmission case () releasably, a fifth engagement mechanism (B) fixing a sun gear (Sb) to the transmission case () releasably, and a sixth engagement mechanism (B) fixing the ring gear (Rc) to the transmission case () releasably.

An automatic transmission includes an input shaft, an output member, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, and an engagement mechanism. The engagement mechanism includes first to sixth engagement assemblies. Each of a plurality of gear ratios is provided by setting three of the first to sixth engagement assemblies in a engagement state.

Growing community of inventors

Chemnitz, Germany

Jorg Muller