Method and system for engine emission control
US8588999B2 · kind B2 · utility
5Cited by
8References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2010 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Feb 1, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/7072
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for improving a balance between engine fuel economy and exhaust emissions in an off-highway vehicle. One example method includes adjusting an engine injection timing based on an ambient NOx level estimated by a NOx sensor in the engine intake. Another example method includes adjusting a trip plan with a time in notch duty cycle based on a deviation from the time in notch duty cycle from a reference duty cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.