公开(公告)号：US20210079865A1

公开(公告)日：2021-03-18

申请号：US16620200

申请日：2017-06-08

Applicant: Cummins Inc.

Inventor： Jason Ward ,  Krithika Mohan

IPC: F02D41/22 ,  G07C5/08 ,  F02B37/16 ,  G05B23/02

Abstract: A system includes a controller having a control signal generation unit that provides control signals to actuate one or more valve actuators of an engine to a desired position, and control signals to modify one or more operational parameters and an operational mode of the engine. A parameter signal process unit receives parameter signals corresponding to at least one operational parameter of the engine, and at least one sensor coupled to the engine. At least one sensor corresponds to a position of a valve. A failure detection unit generates at least one fault code corresponding to one or more failure modes. A failure mode isolation unit isolates a failure mode from the one or more failure modes in response to modifying the operational parameters or the operational mode, causing actuation of the valves to a desired position, or receiving the parameter signals and the sensor.

公开(公告)号：US11022060B2

公开(公告)日：2021-06-01

申请号：US16620200

申请日：2017-06-08

Applicant: Cummins Inc.

Inventor： Jason Ward ,  Krithika Mohan

IPC: F02D41/22 ,  G07C5/08 ,  F02B37/16 ,  G05B23/02 ,  G01M15/05

Abstract: A system includes a controller having a control signal generation unit that provides control signals to actuate one or more valve actuators of an engine to a desired position, and control signals to modify one or more operational parameters and an operational mode of the engine. A parameter signal process unit receives parameter signals corresponding to at least one operational parameter of the engine, and at least one sensor coupled to the engine. At least one sensor corresponds to a position of a valve. A failure detection unit generates at least one fault code corresponding to one or more failure modes. A failure mode isolation unit isolates a failure mode from the one or more failure modes in response to modifying the operational parameters or the operational mode, causing actuation of the valves to a desired position, or receiving the parameter signals and the sensor.