Engine emission control strategy for smoke and NOx
US9175622B2 · kind B2 · utility
7Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2010 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Mar 19, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine control system (32) apportions smoke and NOx in engine-out exhaust gas by a strategy (38) that corrects a target percentage for fresh air and a target percentage for exhaust gas to re-calculate a set-point for fresh air mass flow. The target percentage for fresh air mass flow is calculated as a function of engine speed (N) and an engine output torque request (TQI_DRIV).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.