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:
Oct. 31, 2023
Filed:
Jun. 11, 2022
Vitesco Technologies Gmbh, Regensburg, DE;
Hong Zhang, Tegernheim, DE;
VitescoTechnologies GmbH, Regensburg, DE;
Abstract
The disclosure relates to a method for optimizing the state of a catalytic converter in a vehicle with a diesel engine when parking the vehicle, the method comprising establishing that a switch-off process for switching off the diesel engine has been initiated, increasing an NH3 feed rate to a first value in order to store a surplus of NH3 in the catalytic converter, stopping the NH3 feed when the speed of the diesel engine falls below a speed threshold or a measured NH3 emission exceeds an emission threshold, and completing the switch-off process. The disclosure also relates to an engine controller and to a computer program.