Multiple speed overdrive transmission for a motor vehicle
US6053839A · kind A · utility
264Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1999 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Jun 18, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2046
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A multiple speed transmission for motor vehicles includes three simple planetary gearsets hydraulically actuated friction clutches and brakes for controlling operation of the gearsets and altering the torque delivery path between an input shaft and an output shaft. An overrunning brake is provided for operation in reverse drive to share the torque reaction with a friction brake. The transmission is suited to produce five, six or seven forward speed ratios and a reverse drive ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.