DUAL FUEL ENGINE OPERATING STRATEGY FOR OPTIMIZED HYDROGEN AND HYDROCARBON FUELING

    公开(公告)号:US20230358186A1

    公开(公告)日:2023-11-09

    申请号:US17737528

    申请日:2022-05-05

    申请人: Caterpillar Inc.

    IPC分类号: F02D41/00 F02D41/14

    CPC分类号: F02D41/0027 F02D41/1452

    摘要: Operating an engine system includes combusting a gaseous hydrogen fuel (H2) and a gaseous hydrocarbon fuel (HC) at a first substitution ratio in a cylinder in an engine, determining at least one of an H2 fueling command or an HC fueling command based on an H2 availability input and an H2 cost, and outputting the H2 fueling command and the HC fueling command to an H2 injector and an HC admission valve, respectively. Operating the engine system further includes combusting H2 and HC at a varied substitution ratio based on the H2 fueling command and the HC fueling command. At least one of the H2 fueling command or the HC fueling command may be based on a monitored CO2 exhaust level which may be used to populate a stored history of CO2 output.

    DETECTING SENSOR MALFUNCTION OR TAMPERING BASED ON REDUCTANT CONSUMPTION

    公开(公告)号:US20230311808A1

    公开(公告)日:2023-10-05

    申请号:US17657589

    申请日:2022-03-31

    申请人: Caterpillar Inc.

    IPC分类号: B60R25/10 G07C5/08 G08B29/04

    摘要: A systems for detecting level sensor malfunction or tampering based on reductant consumption and determining when to initiate a quality check of reductant used in an aftertreatment system are disclosed. The system comprises a memory storing instructions and a processor executing the instructions to perform a process including: receiving dosing data associated with an amount of DEF supplied to the aftertreatment system; receiving tank level data from a level sensor in a DEF tank; comparing the dosing data with the tank level data; and based on the comparison: initiating, by the one or more processors, a quality check; and/or determining, by the one or more processors, a possible error requiring further diagnostics; and causing to present, by the one or more processors, an indication that the quality check is being initiated and/or that a possible error requires further diagnostics on a display.

    Work implement for construction vehicle

    公开(公告)号:US11767654B2

    公开(公告)日:2023-09-26

    申请号:US17009862

    申请日:2020-09-02

    申请人: Caterpillar Inc.

    IPC分类号: E02F3/76 E02F9/18 E02F3/815

    摘要: A construction vehicle includes a frame and a linkage assembly. The linkage assembly includes a linkage member and a work implement. The work implement includes a wall structure defining a first edge, a second edge, and a material engaging portion. The work implement also includes a first support plate disposed proximate to the first edge. The first support plate defines a first opening proximate to the material engaging portion. The work implement further includes a second support plate disposed. The second support plate defines a second opening proximate to the material engaging portion. The work implement includes a conduit coupled to the first support plate and the second support plate and defining a cavity. Each of the first and second openings are aligned with the cavity. Further, the work implement also includes a weight member removably received within the cavity defined by the conduit.