Patent · US Active

Method for adjusting the temperature of an exhaust gas aftertreatment device

US10113460B2 · kind B2 · utility

0Cited by

3References

9Claims

0Family size

Assignee

Daimler AG · DE

Inventors

Ortwin Balthes · Sachsenheim, DE
Berthold Keppeler · Owen, DE
Siegfried Mueller · Großingersheim, DE
Thorsten Woog · Stuttgart, DE

Key dates

Filing date	Jan 13, 2015
Grant date	Oct 30, 2018
Priority date	—
Expiry date	Feb 15, 2035

Classification

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

Abstract

A method for adjusting the temperature of an exhaust gas aftertreatment device is disclosed. A first characteristic temperature value for an oxidative carbon monoxide conversion and a second characteristic temperature value for an oxidative hydrocarbon conversion are assigned to an oxidation catalytic converter, and a third characteristic temperature value for a reductive NOx conversion is assigned to an SCR catalytic converter. Different respective values for injection parameters of injection processes for fuel injections into combustion chambers of the internal combustion engine and/or the heating output of an electric heating element are set upon reaching the first and the second characteristic temperature values for the temperature of the oxidation catalytic converter and upon reaching the third characteristic temperature value for the temperature of the SCR catalytic converter.

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