Method for operation of an internal combustion engine and device for carrying out the method

US8201391B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Rainer Peck · Ludwigsburg, DE
• Matthias Gaenswein · Eßlingen, DE
• Thomas Breitbach · Stuttgart, DE

Key dates

• Filing date: Sep 22, 2006
• Grant date: Jun 19, 2012
• Expiry date: Jul 12, 2028

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D41/405
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A method for operation of an internal combustion engine, comprising an exhaust treatment device in the exhaust system thereof, with application of a reagent under given operating conditions of the internal combustion engine and/or the exhaust treatment device and a device for carrying out the method are disclosed, wherein a correction parameter is determined for a reagent signal, describing the amount of reagent to be introduced into the exhaust system and the correction parameter is determined by means of a comparison of a measure of the actual amount of the reagent in the exhaust system, which should be introduced based on a measure of a pre-determined set amount and the measure of the set amount. The above method permits a particularly exact maintenance of the amount of reagent introduced into the exhaust system in accordance with the pre-determined measure for the set amount.