Method and system for controlling fuel usage
US8387591B2 · kind B2 · utility
37Cited by
23References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2012 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Feb 28, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for improving fuel usage while addressing knock by adjusting the use of spark retard and direct injection of a knock control fluid based on engine operating conditions and the composition of the injected fluid. One or more engine parameters, such as EGR, VCT, boost, throttle position, and CMCV, are coordinated with the direct injection to reduce torque and EGR transients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.