Split power infinitely variable transmission architecture incorporating a planetary type ball variator with low variator loading at vehicle launch
US9772017B2 · kind B2 · utility
1Cited by
84References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 17, 2014 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Oct 17, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2097
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A transmission includes an input shaft, an output shaft, at least four planetary gearsets, a variable-ratio unit, and at least four clutches. The input shaft is configured to receive torque from a drive unit. The output shaft is configured to transmit torque to a load. The at least four planetary gearsets, the variable-ratio unit, and the at least four clutches are arranged between the input shaft and the output shaft. The at least four clutches are selectively engageable in combination with one another to select one of at least four operating modes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.