Method and system for speed control of a hybrid vehicle
US8467927B2 · kind B2 · utility
8Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2011 |
| Grant date | Jun 18, 2013 |
| Priority date | — |
| Expiry date | Nov 3, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/92
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for raising the speed of a hybrid electric vehicle operating in an electric-only mode. During conditions when the vehicle is driven only by an electric motor, vehicle speed may be raised by spinning the engine unfueled using power from a system battery, while adjusting valve operation to reduce engine pumping losses. In this way, vehicle speed may be raised more efficiently and without damaging rotating transmission components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.