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    Determining the composition of a combustion gas
    1.
    发明授权
    Determining the composition of a combustion gas 有权

    公开(公告)号：US12066350B2

    公开(公告)日：2024-08-20

    申请号：US18007477

    申请日：2021-07-12

    申请人： MAN Truck & Bus SE

    发明人： Heiko Krauss ,  Torsten Gehrmann

    IPC分类号： G01M15/05 ,  F02D41/00 ,  F02D41/14 ,  F02P5/15

    CPC分类号： G01M15/05 ,  F02D41/005 ,  F02D41/1446 ,  F02D41/1454 ,  F02D41/1461 ,  F02P5/1502 ,  F02D2200/101 ,  F02D2200/70

    摘要： A method for determining a combustion gas composition of a combustion gas for an internal combustion engine includes operating the engine, and establishing an operating point of the internal combustion engine during operation. The method also includes detecting a nitrogen oxide emission of the internal combustion engine at the operating point. The method further includes detecting an exhaust gas temperature of the internal combustion engine at the operating point, and detecting a combustion air ratio of the internal combustion engine at the operating point. The combustion gas composition of the combustion gas is determined based on the operating point, the detected nitrogen oxide emission, the detected exhaust gas temperature and the detected combustion air ratio.

    ENGINE ABNORMALITY PREDICTING DEVICE
    3.
    发明公开
    ENGINE ABNORMALITY PREDICTING DEVICE 审中-公开

    公开(公告)号：US20240183751A1

    公开(公告)日：2024-06-06

    申请号：US18471587

    申请日：2023-09-21

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Hisatsugu MIYATA

    IPC分类号： G01M15/05

    CPC分类号： G01M15/05

    摘要： Based on at least one of an engine speed which is a rotational speed of the engine, an engine load factor which is a load factor of the engine, a vehicle speed of the vehicle, and an on-off state of a brake in the vehicle, a use state of the vehicle is determined, and based on an elapsed time after the engine is stopped, whether or not condensed water is generated in the engine is determined, and an engine abnormality is predicted based on the determined use state of the vehicle when the condensed water is generated in the engine or when the amount of condensed water generated in the engine is equal to or larger than a predetermined amount of water.

    Determining the Composition of a Combustion Gas
    5.
    发明公开
    Determining the Composition of a Combustion Gas 审中-公开

    公开(公告)号：US20230296478A1

    公开(公告)日：2023-09-21

    申请号：US18007477

    申请日：2021-07-12

    申请人： MAN Truck & Bus SE

    发明人： Heiko Krauss ,  Torsten Gehrmann

    IPC分类号： G01M15/05 ,  F02D41/14 ,  F02P5/15 ,  F02D41/00

    CPC分类号： G01M15/05 ,  F02D41/1461 ,  F02P5/1502 ,  F02D41/1446 ,  F02D41/1454 ,  F02D41/005 ,  F02D2200/101 ,  F02D2200/70

    摘要： A method for determining a combustion gas composition of a combustion gas for an internal combustion engine includes operating the engine, and establishing an operating point of the internal combustion engine during operation. The method also includes detecting a nitrogen oxide emission of the internal combustion engine at the operating point. The method further includes detecting an exhaust gas temperature of the internal combustion engine at the operating point, and detecting a combustion air ratio of the internal combustion engine at the operating point. The combustion gas composition of the combustion gas is determined based on the operating point, the detected nitrogen oxide emission, the detected exhaust gas temperature and the detected combustion air ratio.

    MEASUREMENT OF FLOW OF VENT GAS WITH COMBUSTIBLES
    6.
    发明公开
    MEASUREMENT OF FLOW OF VENT GAS WITH COMBUSTIBLES 审中-公开

    公开(公告)号：US20230168152A1

    公开(公告)日：2023-06-01

    申请号：US18050175

    申请日：2022-10-27

    申请人： REM Technology Inc.

    发明人： HOWARD MALM

    IPC分类号： G01M15/05 ,  G01N33/00

    CPC分类号： G01M15/05 ,  G01N33/0036

    摘要： The present disclosure describes methods and systems for determining a flow of a combustible portion of vent gas delivered to an engine. The flow rate measurement may be performed by using the engine response to a relatively short (e.g. 1 to 5 s) reduction of the vent gas flow. A cross-correlation between RPM data of the engine and a reference signal corresponding to a state of a valve configured to reduce the vent gas flow is determined, and a flow rate of the combustible portion of the vent gas delivered to the engine is determined from the maximum value of the cross-correlation.

    METHOD FOR PREDICTING SOOT BUILD-UP IN AN ENGINE SYSTEM
    7.
    发明申请
    METHOD FOR PREDICTING SOOT BUILD-UP IN AN ENGINE SYSTEM 有权

    公开(公告)号：US20230121134A1

    公开(公告)日：2023-04-20

    申请号：US18047203

    申请日：2022-10-17

    申请人： VOLVO PENTA CORPORATION

    发明人： Nina LÖNN ,  Arlena AMIRI ,  Viktor PALMQVIST BERNTSSON ,  Jakob HEIDE ,  Johan ASSIKS

    IPC分类号： F01N11/00 ,  G01M15/04 ,  G01M15/05

    摘要： A method for predicting soot build-up in an engine system when operating according to an intended drive cycle. The engine system includes an internal combustion engine and an exhaust gas aftertreatment system provided with a particulate filter. The method includes providing data representing engine operational conditions for the internal combustion engine during the intended drive cycle, wherein the data comprises values for at least engine speed and engine torque distributed over a time period representing the intended drive cycle; determining a working temperature for the exhaust gas aftertreatment system during the intended drive cycle based on the data representing the engine operational conditions; providing a reference relation between working temperature of the exhaust gas aftertreatment system and a corresponding estimated magnitude of a build-up of soot in the exhaust gas aftertreatment system; and predicting soot build-up in the engine system when operating according to the intended drive cycle by comparing the determined working temperature for the exhaust gas aftertreatment system with the reference relation.

    System for remote monitoring engine parameters
    9.
    发明授权
    System for remote monitoring engine parameters 有权

    公开(公告)号：US11585728B2

    公开(公告)日：2023-02-21

    申请号：US16627500

    申请日：2018-06-27

    申请人： Perkins Engines Company Limited

    发明人： Christopher J. Green

    IPC分类号： G01M15/05 ,  G01L3/00 ,  G01M15/12

    摘要： A method and system for engine monitoring comprises a monitoring device and a remote device that are in communication. The monitoring device is incorporated in or directly attached to the internal combustion engine and functions to sense a characteristic of the internal combustion engine. The monitoring device is configured to transmit data representative of the sensed characteristic to a remote application running on a remote device. The remote device is configure to produce engine monitoring data from the transmitted data using engine characterising data stored on the remote device.