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. 03, 2023
Filed:
Dec. 01, 2022
Caterpillar Inc., Peoria, IL (US);
Sylvain J. Charbonnel, Peoria, IL (US);
Gavin Williams, Lincolnhire, GB;
Derek A. Tanis, Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A machine includes an engine, a selective catalytic reduction (SCR) element fixedly connected to an output of the engine, and a controller. The controller is communicatively coupled to the engine and a sensor at an output of the SCR element. The controller is configured to calculate an estimated amount of emissions at a location of the SCR element, calculate an estimated amount of emissions from an output of the SCR element, measure, using the sensor, an actual amount of emissions from the output of the SCR element, and perform a comparison of the estimated amount of emissions and the actual amount of emissions. The controller is further configured to adjust, based on the comparison, the estimated amount of emissions at the location of the SCR element, and control operation of the engine based on the adjusted amount of emissions.