Electronically-variable power shift transmission for work vehicles
US11607948B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2021 |
| Grant date | Mar 21, 2023 |
| Priority date | — |
| Expiry date | Dec 22, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/62
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A transmission includes an input assembly, an electric machine, a variator and a power shift assembly. The input assembly has directional clutches and is configured to receive rotational engine input power. The variator has only a single planetary set configured and combine to receive rotational input power from the electric machine and the input assembly. The power shift assembly is configured to receive rotational power from the variator, and it includes speed gears, range gears and power shift clutches and an output shaft. The power shift clutches are configured to dissipate energy from asynchronous gear meshing. The power shift assembly is configured to effect multiple different rotational power flows through to the output shaft that arise from meshing gears at each shift to effect a unique one of multiple gear ratios.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.