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. 21, 2025
Filed:
Apr. 13, 2023
Cummins Inc., Columbus, IN (US);
Jiyin Peng, Beijing, CN;
Ying Y. Yang, Beijing, CN;
Xiao X. Wang, Beijing, CN;
Ye Yuan, Beijing, CN;
Cummins Inc., Columbus, IN (US);
Abstract
Systems and methods for diagnosing an aftertreatment system are provided. The system includes an aftertreatment system having a diesel particulate filter (DPF). The system includes a controller configured to: receive sensor data including pressure change data and flow rate data from a sensor; determine a flow resistance of the DPF and a pressure change value; determine that the flow resistance is less than a flow resistance threshold; determine whether the pressure change value is less than a pressure change value threshold; trigger a first failure warning based on determining that the flow resistance is less than the flow resistance threshold and that the pressure change value is less than the pressure change value threshold; and trigger a second failure warning based on determining that that the flow resistance is less than the flow resistance threshold and that the pressure change value is greater than the pressure change value threshold.