Method of controlling exhaust recycling in an internal combustion engine

US6283101A · kind A · utility

Assignee

• DEUTZ AKTIENGESELLSCHAFT · DE

Inventors

• Bernd Hulsmann · Langenfeld, DE
• Martin Lutat · Sankt Augustin, DE

Key dates

• Filing date: Feb 22, 2000
• Grant date: Sep 4, 2001
• Expiry date: Feb 22, 2020

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M2026/004
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a method for controlling exhaust gas recirculation in an internal combustion engine. Known methods provide for a control unit which generally controls the exhaust gas recirculation rate via a throttle and a stop valve in accordance with operating parameters of the internal combustion engine. No further information is provided on these operating parameters. The invention provides for a method and a device for controlling exhaust gas recirculation in an internal combustion engine which method and device are able to take into consideration a wide range of operating conditions of an internal combustion engine. To this end the control unit comprises a basic characteristic map (1) above the parameters "rotation per mite of international combustion engine" and "quantity of fuel supplied per operating cycle". The basic signals of the basic characteristic map (1) can be influenced by correcting units which can be connected as needed and transmit correcting signals.