Method for plausibility-verifying position of control valve in recirculation duct at compressor in air system of internal combustion engine of vehicle, involves verifying information about position of valve depending on valve-air mass flow

• Main Authors: MENOLD, PATRICK, MANNAL, SOENKE
• Format: Patent
• Language: English; German
• Published: 17.06.2010
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING COMBUSTION ENGINES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

The method involves determining a components-air mass flow (m1) by a component (6) i.e. compressor, according to component function. Valve-air mass flow (m2) is detected by a control valve (8) depending on the components-air mass flow and by the formation of air mass flow balance. Information about the position of the control valve is provided and verified depending on the valve-air mass flow. The components-air mass flow corresponding to the component function is determined depending on a condition and/or parameter. Independent claims are also included for the following: (1) a device for plausibility-verifying a position of a control valve in a recirculation duct at a compressor in an air system of an internal combustion engine, comprising a sensor (2) a computer program for executing a method for plausibility-verifying a position of a controlled valve in a recirculation duct at a compressor in an air system of an internal combustion engine. Die Erfindung betrifft ein Verfahren zum Plausibilisieren der Stellung einer Regelklappe (8) in einer Rückführungsleitung (7) um eine Komponente (6), insbesondere in einem Verdichter, in einem Luftsystem eines Verbrennungsmotors (2); mit folgenden Schritten: - Bestimmen (S1) eines Komponenten-Luftmassenstroms (m1) durch die Komponente (6) gemäß einer Komponentenfunktion; - Ermitteln (S4) eines Klappen-Luftmassenstroms (m2) über die Regelklappe (8) abhängig von dem Komponenten-Luftmassenstrom (m1); - Bereitstellen einer Angabe über die Stellung der Regelklappe (8); - Plausibilisieren (S5, S6, S7) der Angabe über die Stellung der Regelklappe (8) abhängig von dem Klappen-Luftmassenstrom (m2) und der Angabe über die Stellung der Regelklappe (8).