Vehicle transmission with multiple gear ratios
US10228048B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 9, 2017 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Mar 9, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2094
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vehicle transmission with multiple gear ratios includes a spur-gear gearbox with a first spur gear and a second spur gear arranged on a spur-gear shaft, wherein the first spur gear meshes with a fourth spur gear and the second spur gear meshes with a third spur gear, and an epicyclic gear train with a first and a second epicyclic gear sets and a epicyclic gear train shaft. Each of the epicyclic gear sets has a ring gear and at least one epicyclic gear, and at least one of the epicyclic gear sets has a sun gear and at least one planet carrier. A gear box, the spur-gear shaft and the epicyclic gear train shaft are rotatably mounted relative to the gear box. A plurality of speed changing devices are provided, wherein the first spur gear can be selectively connected in a torque-transmitting manner to the spur-gear shaft. The vehicle transmission is characterized in that the first spur gear can be selectively connected in a torque-transmitting manner to the gear box, at least one of the sun gears can be selectively connected in a torque-transmitting manner to the gear box, and the third spur gear can be selectively connected in a torque-transmitting manner to one of the planet carrier…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.