Method and system for engine control
US9346451B2 · kind B2 · utility
33Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2014 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Aug 28, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/902
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for slowly rotating an engine, unfueled, via a motor prior to an imminent engine restart to heat the engine. By rotating the engine so that heat generated in the compression stroke of a cylinder can be transferred to cylinder walls, thereby expediting engine warm-up. By warming the engine before a restart, particulate emissions generated during an engine cold-start due to direct injection of fuel can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.