Multiple-ratio automatic transmission with multiple-function roller clutches and brakes
US6056659A · kind A · utility
4Cited by
12References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1999 |
| Grant date | May 2, 2000 |
| Priority date | — |
| Expiry date | Jan 11, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2023
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A multiple-ratio automatic transmission having plural torque delivery paths that are established and disestablished by a roller clutch and brake system. The clutch and brake system establishes and disestablishes torque flow paths while preventing simultaneous clutch or brake engagement. The clutch and brake system is capable of accommodating instantaneous torque reversals during ratio changes. Simplified clutch and brake system actuators trigger the application and release of the clutches and brakes during ratio changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.