公开(公告)号：US20210388800A1

公开(公告)日：2021-12-16

申请号：US17282684

申请日：2019-10-02

Applicant: VITESCO TECHNOLOGIES GMBH

Inventor： Xavier MOINE ,  Xavier BELIN

IPC: F02M35/09 ,  F02M35/10

Abstract: Disclosed is a method for detecting the clogging of an air filter including the following steps when the cross section for the passage of air in an intake tract is greater than a predetermined passage cross section: measuring a pressure in the intake tract at the end of a phase of admitting air into a cylinder; measuring a pressure in the intake tract at the end of an exhaust phase in a cylinder; and determining that the air filter is clogged by comparison between at least one pressure measured during a pressure measurement at the end of the phase of admitting air into a cylinder and, on the other hand, a pressure measured during a pressure measurement at the end of the exhaust phase, the filter being estimated to be clogged when the comparison yields a value higher than a predetermined value.