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:
Mar. 22, 2022
Filed:
Oct. 28, 2020
Robert Bosch Gmbh, Stuttgart, DE;
Andreas Fritsch, Waiblingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method of adjusting the dosage of a reductant for an SCR catalyst, comprising: determining () an expected temperature profile in at least one axial section of the catalyst () for a defined period of time (t); firstly simulating () the resulting amount of reductant beyond the at least one section of the catalyst with a first defined dosage of the reductant depending on the expected temperature profile determined; comparing the first simulated amount of reductant with a limit; depending on the result of the comparison, choosing a second defined dosage and secondly simulating () a resulting amount of reductant beyond the at least one section of the catalyst () with the second dosage; comparing the second simulated amount of reductant with the limit; and adjusting () the dosage for injection of the reductant into the catalyst based on the first and/or second comparison.