Multi-speed transmission with integrated electric motor
US8187130B1 · kind B1 · utility
82Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2011 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Sep 7, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2046
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A multiple speed transmission for a motor vehicle includes an input member, an output member, four planetary gear assemblies, each with first, second, and third members, a plurality of torque transmitting devices, an electric motor, and a switching device that selectively couples the electric motor to the input member and selectively couples the electric motor to one of the members of one of the planetary gear assemblies. The electric motor can be employed for regenerative braking. Further, the electric motor can be employed to launch and drive the motor vehicle with each of the gear ratios of the multi-speed transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.