Control strategy using variable valve actuation to reduce particulate emission and improve driveability during transient operation of a turbocharged diesel engine
US6658845B1 · kind B1 · utility
3Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2002 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Aug 20, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine (10) has an intake system (12) that includes a turbocharger (32). An engine control (30) processes data for controlling the opening of the exhaust valves (24) and for controlling fueling of the engine in relation to the engine operating cycle. In response to initiation of engine acceleration, the control increasingly retards exhaust valve opening in relation to the engine operating cycle to cause the turbocharger to increase pressure in the intake manifold (14) and increases engine fueling in relation to the increased pressure in the intake manifold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.