公开(公告)号：US20220074356A1

公开(公告)日：2022-03-10

申请号：US17525018

申请日：2021-11-12

Applicant: Cummins Inc.

Inventor： Abhishek Mehrotra ,  Ward R. Edwards ,  Timothy P. Lutz ,  Colin L. Norris ,  David Joseph Reynolds ,  Gregory E. Bentley ,  Amit Goje ,  Balakrishnan Ramamoorthy ,  Jagdeep I. Singh ,  Olusola Afolabi

IPC: F02D17/02 ,  F01N3/20 ,  F01N11/00

Abstract: A system includes a controller coupled to an exhaust gas aftertreatment system coupled to a plurality of combustion cylinders of an engine. The controller is structured to: determine that the engine is operating in a low load operating condition; deactivate a combustion cylinder based on the determination that the engine is operating in the low load operating condition such that an exhaust gas temperature threshold corresponds with when the combustion cylinder is deactivated; increase an engine exhaust gas temperature while the combustion cylinder is deactivated via at least one thermal management command; and reactivate the deactivated combustion cylinder in response to the engine operating with a load greater than a preset threshold for a certain period of time.

公开(公告)号：US20160186672A1

公开(公告)日：2016-06-30

申请号：US15061516

申请日：2016-03-04

Applicant: Cummins Inc.

Inventor： Abhishek Mehrotra ,  Ward R. Edwards ,  Timothy P. Lutz ,  Colin L. Norris ,  David Joseph Reynolds ,  George E. Bentley ,  Amit Goje ,  Balakrishnan Ramamoorthy ,  Jagdeep I. Singh ,  Olusola Afolabi

IPC: F02D17/02 ,  F01N3/20 ,  F01N11/00

CPC classification number: F02D17/02 ,  F01N3/2006 ,  F01N11/002 ,  F01N2570/12

Abstract: An apparatus includes an engine load module structured to detect an engine operating state of the engine and generate an engine status report; a timing module structured to receive the engine status report and generate a cylinder request after the engine has been in a certain engine operating state for a certain period of time; and a cylinder module structured to receive the cylinder request and generate a cylinder command to be sent to the engine to deactivate a portion of combustion cylinders based on the engine operating state existing for the certain period of time.

Abstract translation: 一种装置包括：发动机负载模块，其构造成检测发动机的发动机运转状态并产生发动机状态报告; 定时模块，被构造成在发动机处于某一发动机运行状态一段时间之后接收发动机状态报告并产生气缸请求; 以及气缸模块，其被构造成接收所述气缸请求并产生要发送到所述发动机的气缸命令，以基于在所述特定时间段内存在的所述发动机运行状态来停用燃烧气缸的一部分。