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:
Aug. 05, 2025
Filed:
May. 09, 2024
GM Global Technology Operations Llc, Detroit, MI (US);
Yuntao Gu, Farmington Hills, MI (US);
Mingjie Tu, Sterling Heights, MI (US);
Calvin Thomas, Detroit, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
An exhaust gas treatment system including a hydrocarbon storage model; and a controller operably connected to the hydrocarbon storage model, the controller configured to execute a method for determining a hydrocarbon storage level of a hydrocarbon trap, the method comprising determining a first reaction rate representing a rate of hydrocarbon adsorption at non-acidic sites of the hydrocarbon trap; determining a second reaction rate representing a rate of hydrocarbon desorption at non-acidic sites of the hydrocarbon trap; determining a third reaction rate representing a rate of hydrocarbon adsorption at acidic sites of the hydrocarbon trap; determining a fourth reaction rate representing a rate of hydrocarbon desorption at acidic sites of the hydrocarbon trap; and determining the hydrocarbon storage level in the hydrocarbon trap based on the first reaction rate, the second reaction rate, the third reaction rate, and the fourth reaction rate.