公开(公告)号：US20210183183A1

公开(公告)日：2021-06-17

申请号：US17184881

申请日：2021-02-25

Applicant: Cummins Inc.

Inventor： Robert C. Borregard ,  Hasan Mohammed ,  Atin Tandon ,  Daniel J. Robinson ,  Matthew W. Issacs ,  Benjamin Goldberger ,  Arturo Mendoza-Pinon ,  Douglas Carnecki ,  Frank Ruggiero ,  David L. Hirt

IPC: G07C5/08 ,  F01N11/00 ,  B60Q9/00 ,  F02D41/02

Abstract: Systems and apparatuses include a circuit structured to receive information indicative of a catalyst health, determine a catalyst health management criteria has been met based on the information, determine a catalyst loading based on the information and the catalyst health management criteria being met, and compare the determined catalyst loading to a predetermined loading limit. A notification circuit is coupled to the circuit and structured to provide a notification when the determined catalyst load exceeds the predetermined loading limit.

公开(公告)号：US10961927B2

公开(公告)日：2021-03-30

申请号：US16385407

申请日：2019-04-16

Applicant: Cummins Inc.

Inventor： Hasan Mohammed ,  Matthew W. Isaacs

IPC: F02D41/00 ,  F02D17/02 ,  F02D19/02 ,  F02D19/10 ,  F02D19/06 ,  F02D19/08 ,  F02P5/04 ,  F02P5/15 ,  F02M37/00

Abstract: Systems, apparatus and methods include control techniques for controlling operation of pre-mixed internal combustion engines in response to a load shedding event. The control techniques determine, in response to the load shedding event, a number of cycles in which to skip combustion of the fuel in the at least one cylinder based on an air-fuel ratio limit in the exhaust flow, prevent combustion of the fuel in the at least one cylinder during the number of skipped cycles, and combust the fuel in the at least one cylinder each time the number of skipped cycles are complete.