Powertrain with a multi-speed transmission
US6200242A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1999 |
| Grant date | Mar 13, 2001 |
| Priority date | — |
| Expiry date | Dec 10, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/0052
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A powertrain has an engine and a transmission. The transmission provides six forward speed ratios and one reverse speed ratio between the engine and an output shaft of the transmission. The transmission has two compound planetary gear sets each having three rotatable members including a sun gear member, a ring gear member, and a planetary carrier assembly member. The ring gear member of one of the planetary gear sets is continuously connected with the output shaft. Each planetary gear set has at least two members that are connectable to receive power from the engine through selectively engageable rotating torque transmitting mechanism. One member of each planetary gear set are interconnected and operatively connected with a selectively engageable stationary torque transmitting mechanism to provide reaction members during the reverse speed ratio. Two additional selectively engageable stationary torque transmitting mechanisms are provided to establish reaction members in the other planetary gear set during five of the six forward speed ratios.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.