公开(公告)号：US11661868B2

公开(公告)日：2023-05-30

申请号：US17728888

申请日：2022-04-25

Applicant: Cummins Inc.

Inventor： Rohan Achyut Gumaste ,  Mark W. Pyclik

IPC: F02D41/24 ,  F01M1/20 ,  F02D41/22 ,  F01M13/00

CPC classification number: F01M1/20 ,  F02D41/22 ,  F02D41/2477 ,  F01M2013/0083 ,  F02D2200/024

Abstract: Systems, devices and methods for diagnosing malfunctioning in a crankcase ventilation (CCV) system are provided. A controller includes a processor and a memory storing instructions that cause the processor to: receive a plurality of pressure values including (i) a first pressure value indicative of a pressure of fluid flowing from a crankcase to a breather assembly of a system, (ii) a second pressure value indicative of a pressure of fluid flowing through a first tube coupled to the breather assembly, and (iii) a third pressure value indicative of a pressure of fluid flowing through a second tube coupled to the breather assembly; determine a pair of pressure differences based on the first pressure value, the second pressure value, and the third pressure value; and detect a malfunctioning in the CCV system based on the pair of pressure differences.

公开(公告)号：US20220112822A1

公开(公告)日：2022-04-14

申请号：US17065959

申请日：2020-10-08

Applicant: Cummins Inc.

Inventor： Rohan Achyut Gumaste ,  Mark W. Pyclik

IPC: F01M1/20 ,  F02D41/24 ,  F02D41/22

Abstract: Systems, devices and methods for diagnosing malfunctioning in a crankcase ventilation (CCV) system can include a controller receiving a plurality of pressure values. The plurality of pressure values include a first pressure value indicative of pressure of gases flowing between a crankcase and a breather assembly, a second pressure value indicative of pressure of gases flowing through a CCV tube from the breather assembly, and a third pressure value representing pressure of gases in a tube connected to the CCV tube. The controller can calculate a pair of pressure differences including a first pressure difference between the first pressure value and the second pressure value and a second pressure difference between the first pressure value and the third pressure value. The controller can detect a malfunctioning or defect in the CCV system based on the pair of pressure differences falling within a predefined clustering region.

公开(公告)号：US20220251982A1

公开(公告)日：2022-08-11

申请号：US17728888

申请日：2022-04-25

Applicant: Cummins Inc.

Inventor： Rohan Achyut Gumaste ,  Mark W. Pyclik

IPC: F01M1/20 ,  F02D41/22 ,  F02D41/24

Abstract: Systems, devices and methods for diagnosing malfunctioning in a crankcase ventilation (CCV) system are provided. A controller includes a processor and a memory storing instructions that cause the processor to: receive a plurality of pressure values including (i) a first pressure value indicative of a pressure of fluid flowing from a crankcase to a breather assembly of a system, (ii) a second pressure value indicative of a pressure of fluid flowing through a first tube coupled to the breather assembly, and (iii) a third pressure value indicative of a pressure of fluid flowing through a second tube coupled to the breather assembly; determine a pair of pressure differences based on the first pressure value, the second pressure value, and the third pressure value; and detect a malfunctioning in the CCV system based on the pair of pressure differences.

公开(公告)号：US11313261B1

公开(公告)日：2022-04-26

申请号：US17065959

申请日：2020-10-08

Applicant: Cummins Inc.

Inventor： Rohan Achyut Gumaste ,  Mark W. Pyclik

IPC: F02D41/22 ,  F01M1/20 ,  F02D41/24 ,  F01M13/00

Abstract: Systems, devices and methods for diagnosing malfunctioning in a crankcase ventilation (CCV) system can include a controller receiving a plurality of pressure values. The plurality of pressure values include a first pressure value indicative of pressure of gases flowing between a crankcase and a breather assembly, a second pressure value indicative of pressure of gases flowing through a CCV tube from the breather assembly, and a third pressure value representing pressure of gases in a tube connected to the CCV tube. The controller can calculate a pair of pressure differences including a first pressure difference between the first pressure value and the second pressure value and a second pressure difference between the first pressure value and the third pressure value. The controller can detect a malfunctioning or defect in the CCV system based on the pair of pressure differences falling within a predefined clustering region.