Hybrid powertrain with operator selectable electric propulsion mode
US8771136B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2011 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Jul 27, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19019
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A powertrain for a vehicle includes an engine and a transmission having an input member, an output member, and a neutral state in which torque is not transmitted from the input member to the output member. A first motor/generator is coupled to the engine. A second motor/generator is coupled with vehicle wheels directly or indirectly through the transmission. The first motor/generator acts as a generator when powered by the engine to provide electric power to the second motor/generator. The second motor/generator acts as a motor when receiving electric power from a battery or from the first motor/generator. A shift selector is moved by a vehicle operator to establish an electric propulsion mode in which the transmission is in the neutral state and the second motor/generator functions as a motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.