ERROR DETECTION DEVICE FOR INTERNAL COMBUSTION ENGINE

    公开(公告)号:EP2660448A4

    公开(公告)日:2018-03-07

    申请号:EP10861323

    申请日:2010-12-28

    IPC分类号: F02D45/00

    摘要: An object of the present invention is to enable accurate detection of abnormality in a fuel property sensor that is used to determine properties of a fuel employed in an internal combustion engine whose operation is controlled in accordance with the properties of the employed fuel, or more particularly, enable accurate detection on whether the fuel property sensor is stuck. In order to achieve the above object, the present invention provides an abnormality detection device in which the fuel property sensor is not disposed in a primary flow path of a fuel flow path connecting a fuel pump to an injector, but is disposed in a branch flow path which is such that there is a time where the fuel in the branch flow path drops out therefrom between one start of the internal combustion engine and the next start. An output value of the fuel property sensor generated when the fuel is flowing through the branch flow path is acquired as a first sensor output value. An output value of the fuel property sensor generated when the fuel in the branch flow path drops out therefrom is acquired as a second sensor output value. The first sensor output value and the second sensor output value are used as judgment data to judge whether the fuel property sensor is abnormal.

    DIAGNOSIS DEVICE AND DIAGNOSIS METHOD FOR TURBOCHARGER
    3.
    发明公开
    DIAGNOSIS DEVICE AND DIAGNOSIS METHOD FOR TURBOCHARGER 审中-公开
    DIAGNOSEVORRICHTUNG UND DIUNOSEVERFAHRENFÜRTURBOLADER

    公开(公告)号:EP3064922A1

    公开(公告)日:2016-09-07

    申请号:EP16158232.5

    申请日:2016-03-02

    IPC分类号: G01M15/04

    CPC分类号: F01D21/003 G01M15/04

    摘要: A diagnosis device for a turbocharger, the diagnosis device includes an electronic control unit (25). The electronic control unit is configured to calculate a turbine expansion ratio (PIT) as a ratio of a pressure of the exhaust gas flowing into a turbine (19) of the turbocharger to the pressure of the exhaust gas flowing out from the turbine (19); operate a deterioration evaluation value toward a predetermined one of an increase side and a decrease side when the turbine expansion ratio (PIT) exceeds a threshold (α); and determine a replacement timing of a turbine component (19a) when a total operation amount of the deterioration evaluation is equal to or larger than a specified value, the total operation amount being an operation amount from an initial value of the deterioration evaluation value.

    摘要翻译: 一种用于涡轮增压器的诊断装置,所述诊断装置包括电子控制单元(25)。 电子控制单元被构造为根据流入涡轮增压器的涡轮机(19)的排气的压力与从涡轮机(19)流出的排气的压力的比来计算涡轮膨胀比(PIT) ; 当涡轮膨胀比(PIT)超过阈值(±)时,对增加侧和减少侧的预定的一方进行劣化评价值。 并且当所述劣化评估的总操作量等于或大于指定值时,确定所述涡轮机部件(19a)的更换定时,所述总操作量是从所述劣化评估值的初始值开始的操作量。

    SYSTEM AND METHOD FOR ANALYZING CARBON BUILD UP IN AN ENGINE
    5.
    发明公开
    SYSTEM AND METHOD FOR ANALYZING CARBON BUILD UP IN AN ENGINE 审中-公开
    系统和方法碳积累的内燃发动机分析

    公开(公告)号:EP2864751A1

    公开(公告)日:2015-04-29

    申请号:EP13807094.1

    申请日:2013-06-20

    IPC分类号: G01M15/04

    摘要: An induction cleaning analyzing system includes a pressure sensor, an ignition event detector, and a control module. The pressure sensor measures airflow pressures of intake air and/or exhaust from cylinders in a common airflow pathway of a vehicle. The ignition event detector determines ignition events of the cylinders. The control module obtains pressure waveforms representative of the airflow pressures and divides the pressure waveforms into waveform segments. The control module associates different subsets of the waveform segments with different ones of the cylinders using the ignition events. The control module also identifies cyclic variations in the airflow pressures flowing in the common airflow pathway and caused by at least one of the cylinders by examining the waveform segments associated with the at least one of the cylinders.

    ABNORMALITY DETECTION APPARATUS AND ABNORMALITY DETECTION METHOD FOR RANKINE CYCLE SYSTEM
    6.
    发明公开
    ABNORMALITY DETECTION APPARATUS AND ABNORMALITY DETECTION METHOD FOR RANKINE CYCLE SYSTEM 有权
    RANKINE周期系统的异常检测装置和异常检测方法

    公开(公告)号:EP2663761A1

    公开(公告)日:2013-11-20

    申请号:EP12714041.6

    申请日:2012-02-16

    IPC分类号: F02G5/02 F01P3/22 F01P5/14

    摘要: An abnormality detection apparatus (100) for a Rankine cycle system (1) includes: a main body (20) that vaporizes a cooling medium that circulates in an internal combustion engine (2) by giving waste heat to the cooling medium; a gas-liquid separator (5) that separates the cooling medium into a gas-phase and a liquid-phase; a superheater (7) that gives waste heat of the engine (2) to the cooling medium; a condensate header tank (15) that stores the liquid-phase cooling medium; a vane pump (10) that pumps the liquid-phase cooling medium. If abnormality of a cooling medium supply portion that supplies the cooling medium to the engine (2) is not detected, the abnormality detection apparatus determines whether a vane pump (10) has abnormality on the basis of the amount of the liquid-phase cooling medium in the gas-liquid separator (5), the temperature of the gas-phase cooling medium in the superheater (7) and the amount of the liquid-phase cooling medium in the condensate header tank (15).

    摘要翻译: 朗肯循环系统(1)的异常检测装置(100)包括:主体(20),其通过将废热提供给冷却介质而使在内燃机(2)中循环的冷却介质汽化; 将冷却介质分离成气相和液相的气液分离器(5) 过热器(7),其将发动机(2)的废热引导至冷却介质; 存储液相冷却介质的冷凝集液箱(15) 泵送液相冷却介质的叶片泵(10)。 如果没有检测到向发动机(2)供应冷却介质的冷却介质供应部的异常,则异常检测设备基于液相冷却介质的量来判断叶片泵(10)是否有异常 在气液分离器(5)中计算过热器(7)中的气相冷却介质的温度和冷凝集液箱(15)中的液相冷却介质的量。

    VERFAHREN UND VORRICHTUNG ZUR DIAGNOSE EINER KÜHLMITTELPUMPE FÜR EINE BRENNKRAFTMASCHINE
    7.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUR DIAGNOSE EINER KÜHLMITTELPUMPE FÜR EINE BRENNKRAFTMASCHINE 有权
    与设备水泵和方法,用于诊断水泵故障诊断内燃机

    公开(公告)号:EP2609306A1

    公开(公告)日:2013-07-03

    申请号:EP11736286.3

    申请日:2011-07-22

    申请人: Audi AG

    发明人: GRAF, Johann

    IPC分类号: F01P5/14

    摘要: The invention relates to a method and device for diagnosing a switchable coolant pump (2) for circulating a coolant in a coolant circuit (3) of an internal combustion engine (1), wherein an actual value of the cylinder head temperature (19) of the internal combustion engine (1) is detected and wherein the actual value of the cylinder head temperature (19) is compared with a model value of the cylinder head temperature (26) and the functionality of the coolant pump (2) is assessed according to the comparison result (29) or (30).

    SYSTEM FOR ANALYSING THE CONDITION OF A MACHINE AND METHOD FOR OPERATING SAID SYSTEM
    8.
    发明授权
    SYSTEM FOR ANALYSING THE CONDITION OF A MACHINE AND METHOD FOR OPERATING SAID SYSTEM 有权
    系统用于分析机和方法的状态如何操作系统

    公开(公告)号:EP1474663B1

    公开(公告)日:2011-09-14

    申请号:EP03731864.9

    申请日:2003-01-20

    申请人: SPM Instrument AB

    IPC分类号: G01H1/00 G01M13/00

    摘要: A system for analysing the condition of a machine having a rotating shaft (8) and a measuring point (12); the system comprising a client part connectable to a communications network (18) for communication with a supplier part (20); said client part comprising:at least one sensor (10) attachable on or at said measuring point (12) for generating said measurement data dependent on rotation of said shaft;an analysis apparatus (14) for analysing the condition of the machine on the basis of said measurement data; said analysis apparatus (14) having a data processing means for processing condition data dependent on said measurement data; said data processing means comprising means for performing a plurality of condition monitoring functions (F1, F2, Fn); and a logger for registering use of at least one of said condition monitoring functions (F1, F2,Fn); a communication port (16) coupled to said data processing means and connectable to said communications network (18) for communication with said supplier part computer (20); user input/output interface (102, 106, 103, 182) coupled to said data processing means for enabling user interaction; means (50, 60, 70, 80, 132) for generating a request for an amount of usage of at least one of said condition monitoring functions (F1, F2, Fn).