Hybrid vehicle propulsion systems and methods
US10259448B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2016 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Sep 21, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/93
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hybrid vehicle propulsion includes an engine and a first electric machine, where each is configured to selectively provide torque to propel the vehicle. The propulsion system also includes a second electric machine coupled to the engine to provide torque to start the engine from an inactive state. A high-voltage power source is configured to power both of the first electric machine and the second electric machine over a high-voltage bus. The propulsion system further includes a controller programmed to deactivate the engine and propel the vehicle using the first electric machine in response to the vehicle being driven at a steady-state speed for a predetermined duration of time. The controller is also programmed to restart the engine using the second electric machine powered by the high-voltage power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.