Diesel engine control
US6606981B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 26, 2001 |
| Grant date | Aug 19, 2003 |
| Priority date | — |
| Expiry date | Apr 26, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control unit (41) sets a target opening of a variable nozzle (53) of a turbocharger (50) according to a running condition of a diesel engine (1), and controls the opening of the variable nozzle (53) to the target opening. The control unit (41) calculates a target opening area of an exhaust gas recirculation valve (6) using the target opening of the variable nozzle (53) and a target exhaust gas recirculation amount determined according to the running condition. Control of an exhaust gas recirculation amount is performed according to the variation of turbocharging pressure by using the target opening of the variable nozzle (53) as a parameter representing the differential pressure upstream and downstream of the exhaust gas recirculation valve (6).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.