ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,912, issued on Oct. 21, was assigned to Cummins Inc. (Columbus, Ind.).

"Systems and methods for multi-factor diagnosis of exhaust aftertreatment system components" was invented by Jiyin Peng (Beijing), Ying Y. Yang (Beijing), Xiao X. Wang (Beijing) and Ye Yuan (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "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 p...