Patent · US Active

Method for operating an exhaust-gas catalytic converter of an internal combustion engine

US8312707B2 · kind B2 · utility

0Cited by

6References

10Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Gerd Rösel · Dresden, DE
Michaela Schneider · Wiesenfelden, DE

Key dates

Filing date	Dec 5, 2006
Grant date	Nov 20, 2012
Priority date	—
Expiry date	May 16, 2029

Classification

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

Abstract

Method and apparatus for operating an exhaust-gas catalytic converter (21) of an internal combustion engine having at least one cylinder (Z1-Z4) and one exhaust-gas section (4), in which the exhaust-gas catalytic converter (21) and a lambda probe (43) downstream of the exhaust-gas catalytic converter (21) are arranged. A characteristic value which is representative for the NOx concentration is determined as a function of a measured signal (VLS DOWN) of the lambda probe (43).

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