Verfahren zur Erkennung von Ventilleckage in einer Brennkraftmaschine

Details

Veröffentlichungs-Nr.

EP3882452

Aktenzeichen

EP20163812

Anmeldetag

18. März 2020

Veröffentlichung

8. Mai 2024

Erteilung

8. Mai 2024

Rechtsraum

EP

IPC

F02D41/00F02D41/12F02D41/14F02D41/22F01L1/46

Abstract

The disclosed subject matter generally relates to a method for detecting valve leakage of a least one valve at a cylinder intake manifold or exhaust manifold of a vehicle engine, the method comprising: acquiring a set of pressure data points indicative of the pressure in the cylinder intake manifold or exhaust manifold for crankshaft angular positions covering crankshaft angular rotation degrees such that each of the at least one valve has opened at least one time; and determining at least one test value based on the set of pressure data points, wherein a valve leakage is detected based on a comparison of the at least one test value to a threshold value.

Anmelder

Firma

Volvo Car Corporation

Land

🇸🇪 Schweden

Fachgebiete