Electric vehicle multi-speed transmission with integrated fixed reducer gear set
US11965585B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2023 |
| Grant date | Apr 23, 2024 |
| Priority date | — |
| Expiry date | Nov 9, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/0043
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A powertrain system for a commercial electric vehicle includes an electric motor, a multi-speed transmission, and a drive line. A reducer assembly is added prior to connection to the drive line to decease the rotational speed generated by the electric motor prior to being transmitted to the drive line. The reducer assembly can be placed before the multi-speed transmission input, after the multi-speed transmission output, or somewhere in between those two locations. The reducer assembly includes a reducer gearset for decreasing shaft rotational speed. The reducer assembly may include adjacent idler gears to reduce the pressure load on the gear teeth of the reducer assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.