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:
Jan. 27, 2026
Filed:
Dec. 15, 2024
Robert Bosch Gmbh, Stuttgart, DE;
Thorsten Meier, Pfinztal-Kleinsteinbach, DE;
Arman Khosravani, Freiberg Am Neckar, DE;
Stefanos Tzivanakis, Waiblingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method is for exhaust aftertreatment of an internal combustion engine having at least one selective catalytic reduction ('SCR') catalyst supplied with exhaust gas of the engine. The method includes virtually dividing the SCR catalyst into n-bricks in a direction of flow of the exhaust gas, and determining desired NH3 target fill levels for the SCR catalyst as a function of a desired target NOx conversion efficiency. The method further including assuming a steady state condition for the determination of the desired NH3 target fill levels, and determining the desired NH3 target fill levels for the at least one SCR catalyst by an inverse SCR model of a current NOx concentration upstream of the SCR catalyst, an SCR catalyst temperatures of the bricks, an exhaust mass flow, an oxygen concentration, an exhaust pressure upstream of the SCR catalyst and a desired target NOx conversion efficiency.