Patent · US Active

Method for detecting the aging of a heterogeneous catalytic converter, exhaust after-treatment system for an internal combustion engine, and internal combustion engine

US10287960B2 · kind B2 · utility

0Cited by

4References

12Claims

0Family size

Assignee

MTU FRIEDRICHSHAFEN GMBH · DE

Inventors

Klaus Wehler · Friedrichshafen, DE
Klaus Rusch · Achberg, DE

Key dates

Filing date	Mar 31, 2015
Grant date	May 14, 2019
Priority date	—
Expiry date	Aug 31, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method for detecting the aging of a heterogeneous catalytic converter, including the following steps: acquiring at least one measurement signal in a media flow passing through the catalytic converter downstream of the catalytic converter; applying a time-variant input signal to the media flow and/or the catalytic converter; evaluating a behavior of the at least one measurement signal as a function of the time-variant input signal; and detecting a state of aging of the catalytic converter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.