Gear shifting apparatus for multi-speed transmission for electric vehicles
US11300203B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 16, 2019 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | May 19, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2063/3083
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gear shifting apparatus for a multi-speed transmission includes: a shifting unit controlling gear shifting by a torque of an actuator; and a parking unit controlling a parking state by the torque of the actuator. In particular, the actuator includes a control motor transmitting a driving torque to driven gears of the shifting and parking units through a drive gear, and the shifting unit includes: a fork slider slidably mounted on a fork rail; a shift fork integrally formed with the fork slider; a finger drum connected to a first driven gear engaged with the drive gear, and having a finger end; and a shift lug that rotates about a lug shaft and includes two lug ends having a different length from each other. The shift lug interacts with the finger end, and has a coupler end coupled with a pocket portion formed at the fork slider.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.