公开(公告)号：US20240183290A1

公开(公告)日：2024-06-06

申请号：US18440939

申请日：2024-02-13

Applicant: Cummins Inc. ,  Tula Technology, Inc.

Inventor： Timothy R. Frazier ,  J. Steven Kolhouse ,  Steven J. Small ,  Louis Joseph Serrano

IPC: F01L13/00 ,  F01L9/10 ,  F02D13/02 ,  F02D13/06 ,  F02D41/00

CPC classification number: F01L13/0005 ,  F01L9/10 ,  F02D13/0223 ,  F02D13/06 ,  F02D41/0087 ,  F01L2013/001

Abstract: Systems and methods to extend a life of a component of a cylinder deactivation system are provided. A method includes initiating, by a controller, a CDA mode for an engine; determining, by the controller, a first cycle count for a first oil control solenoid of the CDA system; determining, by the controller, a second cycle count for a second oil control solenoid of the CDA system; comparing, by the controller, the first cycle count and the second cycle count; and modifying, by the controller, operation of the CDA mode for the engine based on the comparison.

公开(公告)号：US20220364486A1

公开(公告)日：2022-11-17

申请号：US17870452

申请日：2022-07-21

Applicant: Cummins Inc. ,  Tula Technology, Inc.

Inventor： Timothy R. Frazier ,  J. Steven Kolhouse ,  Steven J. Small ,  Louis Joseph Serrano

IPC: F01L13/00 ,  F01L9/10 ,  F02D13/06 ,  F02D13/02

Abstract: Systems and methods to extend a life of a component of a cylinder deactivation system are provided. A method includes generating, by a controller, an initial life factor for the component; initiating, by the controller, a CDA mode for an engine; determining, by the controller, an actual life factor for the component, the actual life factor determined by comparing a number of switching events of a cylinder in the CDA mode to a number of cycles of the cylinder in the CDA mode; comparing, by the controller, the actual life factor to the initial life factor; and modifying, by the controller based on the comparison, operation of the engine in the CDA mode to adjust the actual life factor.