The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 26, 2023
Filed:
Feb. 17, 2023
Robert Bosch Gmbh, Stuttgart, DE;
Herbert Schoemig, Stuttgart, DE;
Tobias Pfister, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method () for determining an amount of hydrocarbons in an exhaust gas () downstream of a lean-operation internal-combustion engine (), comprising the following steps: observing a first catalyst heating mode of the internal-combustion engine () at a high catalyst temperature, wherein a predefinable amount of fuel having a predominantly non-combusting portion is introduced into a combustion chamber of the internal-combustion engine (); determining an actual temperature change downstream of an oxidation catalyst () downstream of the internal-combustion engine () during the first catalyst heating mode; and determining the amount of hydrocarbons (cHC) in the exhaust gas () upstream of the oxidation catalyst () based on the actual temperature change. Furthermore, a computing unit () and a computer program for carrying out such a method () are proposed.