公开(公告)号：US11920509B2

公开(公告)日：2024-03-05

申请号：US17808194

申请日：2022-06-22

Applicant: Cummins Inc.

Inventor： Rick Vaughan Lewis, Jr. ,  Yilun Liu ,  Jingxuan Liu ,  Trideep Singh ,  Carlos Alcides Lana ,  Stephen Cox

IPC: F02B1/04 ,  F02B33/44 ,  F02B37/16 ,  F02D41/00

CPC classification number: F02B1/04 ,  F02B33/446 ,  F02B37/16 ,  F02D41/0007

Abstract: Systems, methods and apparatus are disclosed for providing reduced engine start times for a fumigation type internal combustion engine. A bypass is provided that directly connects the air-fuel mixer upstream of the compressor to the intake manifold, providing the air-fuel mixture to the intake manifold during engine startup.

公开(公告)号：US11542882B2

公开(公告)日：2023-01-03

申请号：US16988060

申请日：2020-08-07

Applicant: Cummins Inc.

Inventor： Yilun Liu ,  Carlos A. Lana

IPC: F02D41/00 ,  F02D41/14 ,  F02D41/18 ,  F02D41/24 ,  F02D1/00

Abstract: A method and system is provided for correcting fueling commands. For example, the method and system may calibrate an engine operating in a steady-state mode by determining a plurality of accuracy errors associated with a fueling rate based on a plurality of sensor measurements. The method and system may determine fueling rate correction data during on-line operation of the engine based on the plurality of accuracy errors. The on-line operation of the engine may comprise operating the engine in a transient mode at a first period of time and a steady-state mode at a second period of time. The method and system may control at least one fueling valve during operation of the engine using a corrected fueling command. The corrected fueling command is based on the fueling rate correction data.

公开(公告)号：US20220316385A1

公开(公告)日：2022-10-06

申请号：US17808194

申请日：2022-06-22

Applicant: Cummins Inc.

Inventor： Rick Vaughan Lewis, JR. ,  Yilun Liu ,  Jingxuan Liu ,  Trideep Singh ,  Carlos Alcides Lana ,  Stephen Cox

IPC: F02B1/04 ,  F02B33/44 ,  F02D41/00 ,  F02B37/16

Abstract: Systems, methods and apparatus are disclosed for providing reduced engine start times for a fumigation type internal combustion engine. A bypass is provided that directly connects the air-fuel mixer upstream of the compressor to the intake manifold, providing the air-fuel mixture to the intake manifold during engine startup.

公开(公告)号：US20220010740A1

公开(公告)日：2022-01-13

申请号：US17449004

申请日：2021-09-27

Applicant: Cummins Inc.

Inventor： Carlos Alcides Lana ,  Yilun Liu ,  Philipe F. Saad ,  Ganesh Raghunath

IPC: F02D41/00 ,  F02D41/14 ,  F02D41/24

Abstract: A method, system, and apparatus use infrared spectrometry onboard an internal combustion engine running on a natural gas fuel to detect characteristics of the fuel. At a site having a plurality of natural gas engines, detection of natural gas fuel components and concentrations of the components also is conducted at the site upstream of the point of intake of the natural gas fuel to one or more of the engines. Operating parameters of the engine or a plurality of the engines may be controlled on the basis of the detected composition of the natural gas fuel.

公开(公告)号：US11913392B2

公开(公告)日：2024-02-27

申请号：US17449004

申请日：2021-09-27

Applicant: Cummins Inc.

Inventor： Carlos Alcides Lana ,  Yilun Liu ,  Philipe F. Saad ,  Ganesh Raghunath

IPC: F02D41/00 ,  F02D41/14 ,  F02D41/24 ,  F02D19/02

CPC classification number: F02D41/0027 ,  F02D19/029 ,  F02D41/1441 ,  F02D41/1451 ,  F02D41/1454 ,  F02D41/2454

Abstract: A method, system, and apparatus use infrared spectrometry onboard an internal combustion engine running on a natural gas fuel to detect characteristics of the fuel. At a site having a plurality of natural gas engines, detection of natural gas fuel components and concentrations of the components also is conducted at the site upstream of the point of intake of the natural gas fuel to one or more of the engines. Operating parameters of the engine or a plurality of the engines may be controlled on the basis of the detected composition of the natural gas fuel.

公开(公告)号：US20210040909A1

公开(公告)日：2021-02-11

申请号：US16988060

申请日：2020-08-07

Applicant: Cummins Inc.

Inventor： Yilun Liu ,  Carlos A. Lana

IPC: F02D41/14 ,  F02D41/24 ,  F02D41/18

Abstract: A method and system is provided for correcting fueling commands. For example, the method and system may calibrate an engine operating in a steady-state mode by determining a plurality of accuracy errors associated with a fueling rate based on a plurality of sensor measurements. The method and system may determine fueling rate correction data during on-line operation of the engine based on the plurality of accuracy errors. The on-line operation of the engine may comprise operating the engine in a transient mode at a first period of time and a steady-state mode at a second period of time. The method and system may control at least one fueling valve during operation of the engine using a corrected fueling command. The corrected fueling command is based on the fueling rate correction data.