公开(公告)号：US20170152781A1

公开(公告)日：2017-06-01

申请号：US15432464

申请日：2017-02-14

Applicant: Cummins Inc.

Inventor： Paul Douglas Free ,  Jennifer Kay Light- Holets ,  Vaibhav Daramwar ,  David A. Brush

IPC: F01N3/22

CPC classification number: F01N3/225 ,  F01N9/00 ,  F01N13/011 ,  F01N13/107 ,  F01N13/14 ,  F01N2410/03 ,  F01N2430/02 ,  F01N2430/06 ,  F01N2900/1602 ,  F01N2900/1621 ,  F02D41/0055 ,  F02D41/0087 ,  F02D41/0245 ,  F02D2041/026 ,  F02D2200/0802 ,  F02M26/43 ,  Y02T10/26 ,  Y02T10/47

Abstract: A system and method are disclosed for improving the performance of an aftertreatment system by elevating its temperature above an activation temperature. According to at least one aspect of the present disclosure, the method includes injecting a quantity of a fuel into certain fueled cylinders of a plurality of combustion cylinders of an internal combustion engine, the plurality of combustion cylinders further including non-fueled cylinders. Exhaust from the fueled cylinders is directed through the aftertreatment system while uncombusted gas from the non-fueled cylinders is directed away from the aftertreatment system. In certain embodiments, the uncombusted gas may be directed into an intake manifold in fluid communication with the plurality of combustion cylinders through an orifice. The system includes an engine having exhaust valves to control flow of the exhaust and uncombusted gas and a controller configured to perform the operations of the method.

公开(公告)号：US10480377B2

公开(公告)日：2019-11-19

申请号：US15432464

申请日：2017-02-14

Applicant: Cummins Inc.

Inventor： Paul Douglas Free ,  Jennifer Kay Light-Holets ,  Vaibhav Daramwar ,  David A. Brush

IPC: F01N3/22 ,  F01N9/00 ,  F01N13/10 ,  F01N13/14 ,  F02D41/00 ,  F02M26/43 ,  F01N13/00 ,  F02D41/02

Abstract: A system and method are disclosed for improving the performance of an aftertreatment system by elevating its temperature above an activation temperature. According to at least one aspect of the present disclosure, the method includes injecting a quantity of a fuel into certain fueled cylinders of a plurality of combustion cylinders of an internal combustion engine, the plurality of combustion cylinders further including non-fueled cylinders. Exhaust from the fueled cylinders is directed through the aftertreatment system while uncombusted gas from the non-fueled cylinders is directed away from the aftertreatment system. In certain embodiments, the uncombusted gas may be directed into an intake manifold in fluid communication with the plurality of combustion cylinders through an orifice. The system includes an engine having exhaust valves to control flow of the exhaust and uncombusted gas and a controller configured to perform the operations of the method.

公开(公告)号：US10794307B2

公开(公告)日：2020-10-06

申请号：US15125436

申请日：2014-04-24

Applicant: Cummins Inc.

Inventor： David Joseph Reynolds ,  David A. Brush

IPC: F02D41/00 ,  F02D41/14

Abstract: An engine control system and method of controlling an engine system are provided. The engine control system includes at least one sensor module configured to generate an exhaust condition signal based on a determined condition in an exhaust component and a cylinder bank control module communicatively coupled to the at least one sensor module. The cylinder bank control module is configured to cause transmission of a first bank control signal to cause a first bank of cylinders of an engine to deactivate at least in part in response to a determination based on the exhaust condition signal that a hydrocarbon mass quantity is above a pre-determined hydrocarbon mass quantity threshold.

公开(公告)号：US20170074185A1

公开(公告)日：2017-03-16

申请号：US15125436

申请日：2014-04-24

Applicant: Cummins Inc.

Inventor： David Joseph Reynolds ,  David A. Brush

IPC: F02D41/00 ,  F02D41/14

CPC classification number: F02D41/0087 ,  F02D41/0082 ,  F02D41/1446 ,  F02D41/1459 ,  F02D2041/1472 ,  F02D2200/08

Abstract: An engine control system and method of controlling an engine system are provided. The engine control system includes at least one sensor module configured to generate an exhaust condition signal based on a determined condition in an exhaust component and a cylinder bank control module communicatively coupled to the at least one sensor module. The cylinder bank control module is configured to cause transmission of a first bank control signal to cause a first bank of cylinders of an engine to deactivate at least in part in response to a determination based on the exhaust condition signal that a hydrocarbon mass quantity is above a pre-determined hydrocarbon mass quantity threshold.

Abstract translation: 提供了一种控制发动机系统的发动机控制系统和方法。 所述发动机控制系统包括至少一个传感器模块，所述至少一个传感器模块被配置为基于通过联接到所述至少一个传感器模块的排气部件中的确定条件和气缸组控制模块来生成排气条件信号。 气缸组控制模块被配置为使得第一组控制信号的传输使得发动机的第一组气缸至少部分地响应于基于烃质量在上方的排气条件信号的确定来停用 预定的烃质量阈值。