Lockup clutch for powersplit hybrid transmission
US10787071B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2017 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Dec 22, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/62
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A powertrain includes a first planetary gearset configured to establish a fixedly linear speed relationship among a first rotor, an engine crankshaft, and a second rotor. The powertrain further includes a gearing assembly configured to alternately selectively establish a plurality of proportional speed relationships between the second rotor and an output shaft. The gearing assembly further includes a second planetary gearset having a lockup clutch configured to selectively couple two rotatable elements of the second planetary gearset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.