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    CYLINDER DIAGNOSIS
    21.
    发明申请
    CYLINDER DIAGNOSIS 审中-公开
    气瓶诊断

    公开(公告)号：WO2014065743A1

    公开(公告)日：2014-05-01

    申请号：PCT/SE2013/051221

    申请日：2013-10-18

    Applicant: SCANIA CV AB

    Inventor： JOHANSSON, Björn

    IPC: G01M15/04 ,  F02D41/22 ,  G01M15/05 ,  G01M15/08 ,  G01M15/11

    CPC classification number: F02D41/22 ,  F02D35/023 ,  F02D41/008 ,  F02D41/1497 ,  F02D2041/228 ,  F02D2200/1004 ,  F02D2200/101 ,  G01M15/04 ,  G01M15/046 ,  Y02T10/40

    Abstract: A combustion engine (100) includes at least three cylinders (C1, C2, C3, C4, C5, C6). A diagnostic system for the engine (100) comprising at least one sensor (s7) configured to register a measuring signal (rpm) representing a respective torque contribution from each of the cylinders; and a processing device (110) configured, based on the measuring signal (rpm), to investigate whether or not the engine (100) functions satisfactorily. The processing device (110) forms a first test variable (a) based on a first pair of measuring values representing a respective torque contribution from two of the cylinders during a measuring period. The processing device (110) also forms a second test variable (b) based on a second pair of measuring values representing a respective torque contribution from two of the cylinders during the measuring period, where the said first and second pairs of measuring values originate from at least three different cylinders in the engine (100). The first and second test variable (a; b) are tested against an alarm criterion, and if the alarm criterion is met the processing device (110) generates an alarm code (A) indicating a fault in at least one of the cylinders.

    Abstract translation: 内燃机（100）包括至少三个汽缸（C1，C2，C3，C4，C5，C6）。 一种用于发动机（100）的诊断系统，包括至少一个传感器（s7），其被配置为对来自每个气缸的相应转矩贡献的测量信号（rpm）进行记录; 以及基于所述测量信号（rpm）构造的，用于研究发动机（100）是否令人满意地起作用的处理装置（110）。 处理装置（110）基于在测量周期期间表示来自两个气缸的相应转矩贡献的第一对测量值形成第一测试变量（a）。 处理装置（110）还基于表示在测量周期期间来自两个气缸的相应转矩贡献的第二对测量值形成第二测试变量（b），其中所述第一和第二对测量值源自 发动机（100）中的至少三个不同的气缸。 根据报警标准测试第一和第二测试变量（a; b），并且如果满足报警标准，处理设备（110）生成指示至少一个气缸中的故障的报警代码（A）。

    METHOD AND DEVICE FOR CONTROLLING THE OPERATING MODE OF AN INTERNAL COMBUSTION ENGINE
    24.
    发明申请
    METHOD AND DEVICE FOR CONTROLLING THE OPERATING MODE OF AN INTERNAL COMBUSTION ENGINE 审中-公开
    控制内燃机运行的方法和装置

    公开(公告)号：WO2008064659A2

    公开(公告)日：2008-06-05

    申请号：PCT/DE2007002147

    申请日：2007-11-28

    Applicant: CONTI TEMIC MICROELECTRONIC ,  HAGEL REINHOLD ,  TUNA MEHMET ,  ROUTIER EMMANUEL ,  GOENEY KAYHAN

    Inventor： HAGEL REINHOLD ,  TUNA MEHMET ,  ROUTIER EMMANUEL ,  GOENEY KAYHAN

    IPC: F02D41/14 ,  F02D41/00 ,  G01M15/11

    CPC classification number: F02D41/1497 ,  F02D41/0087 ,  F02D2041/1432 ,  F02D2041/288 ,  F02D2200/1015 ,  G01M15/11

    Abstract: The invention relates to a method for controlling the operating mode of an internal combustion engine (1) comprising several cylinders (3) and an injection system (4) with one injection unit (5) per cylinder (3). According to said method: a digital measuring signal, which characterises the combustion of fuel (6) in the internal combustion engine (1), is first determined; said digital measuring signal is transformed into a frequency range; a misfiring of the ignition is detected using the amplitude information of the transformed measuring signal and if a misfiring has occurred, the injection of the individual cylinders (3) is deactivated sequentially for a predefined period and for each cylinder the corresponding digital measuring signal that characterises said cylinder is determined and transformed into the frequency range. A misfiring cylinder (3) is identified during the evaluation of the transformed measuring signal using the amplitude information. The invention also relates to a device for controlling the operating mode of an internal combustion engine (1) using a method of this type.

    Abstract translation: 本发明涉及一种用于控制内燃机的操作（1），其具有多个气缸（3）和喷射系统（4），每个筒（3）的喷射单元（5），其中，首先将燃烧燃料（6）在 表征所确定的数字测量信号，然后在内燃机（1）变换数字测量信号的频率范围内，露出点火是由经变换的测量信号的幅度信息的装置检测到，并且如果点火的悬浮液存在时，各气缸的喷射（3）顺序地 被切断为预定的时间周期，并且确定相应的特征，数字测量信号为每个气缸和变换到频域，并且其中间歇汽缸（3）在转化的测量信号的评价通过的振幅信息的装置识别。 本发明还涉及一种用于通过这种方法控制内燃机（1）的操作的装置。

    Detection of combustion misfiring
    26.
    发明申请
    Detection of combustion misfiring 审中-公开
    失火检测

    公开(公告)号：WO0123728A3

    公开(公告)日：2001-08-23

    申请号：PCT/DE0003024

    申请日：2000-09-02

    Applicant: LEHNER MICHAEL ,  LOHMANN ANDREA ,  BOSCH GMBH ROBERT

    Inventor： LEHNER MICHAEL ,  LOHMANN ANDREA

    IPC: F02D45/00 ,  G01M15/11 ,  G01M15/00

    CPC classification number: G01M15/11

    Abstract: The invention relates to a method for detecting combustion misfiring in internal combustion engines by evaluating segment times wherein a shaft of said combustion engine covers a pre-defined angle segment. The method is characterized by variable segment lengths and/or segment layers relative to a point of reference pertaining to the movement of the piston in the internal combustion engine are provided, whereby the position of the angle segments and/or segment lengths, i.e. the angle extension of the angle segments, depend on internal combustion engine operating parameters.

    DETECTION OF COMBUSTION MISFIRING
    27.
    发明申请
    DETECTION OF COMBUSTION MISFIRING 审中-公开
    失火检测系统

    公开(公告)号：WO01023728A2

    公开(公告)日：2001-04-05

    申请号：PCT/DE2000/003024

    申请日：2000-09-02

    IPC: F02D45/00 ,  G01M15/11 ,  F02D41/00

    CPC classification number: G01M15/11

    Abstract: The invention relates to a method for detecting combustion misfiring in internal combustion engines by evaluating segment times wherein a shaft of said combustion engine covers a pre-defined angle segment. The method is characterized by variable segment lengths and/or segment layers relative to a point of reference pertaining to the movement of the piston in the internal combustion engine are provided, whereby the position of the angle segments and/or segment lengths, i.e. the angle extension of the angle segments, depend on internal combustion engine operating parameters.

    Abstract translation: 提出了一种用于在内燃机中的检测燃烧的失火的片段时间的评估的基础上的方法，其中所述内燃机扫过预定角度分段的轴。 该方法的特征在于，相对于从角区段和/或所述节段长度，即的位置的内燃机的活塞的运动的参考点变量段的长度和/或段的位置 的发动机的操作参数的角区段的角度范围是依赖。

    MISFIRE DETECTION METHOD FOR A PISTON COMBUSTION ENGINE WITH ELECTROMAGNETIC FUEL CHARGE VALVE
    28.
    发明申请
    MISFIRE DETECTION METHOD FOR A PISTON COMBUSTION ENGINE WITH ELECTROMAGNETIC FUEL CHARGE VALVE 审中-公开
    过程识别失火了往复式内燃机电磁驱动气体交换阀

    公开(公告)号：WO99064737A1

    公开(公告)日：1999-12-16

    申请号：PCT/EP1999/003200

    申请日：1999-05-10

    IPC: G01M15/00 ,  F01L9/04 ,  F02D13/06 ,  F02D37/02 ,  F02D41/00 ,  F02D41/14 ,  F02D41/34 ,  F02D41/36 ,  G01M15/04 ,  G01M15/11

    CPC classification number: G01M15/11 ,  F01L9/04 ,  F02D13/06 ,  F02D37/02 ,  F02D41/0087 ,  G01M15/044 ,  Y02T10/18

    Abstract: The invention relates to a method for detecting misfire in a piston combustion engine with electromagnetic valve gears which can be variably controlled by means of an electronic engine control that also performs load-dependent control during operation using a cylinder control program so that the power of one or several cylinders is at least reduced in relation to the other fired cylinders by separately influencing fuel supply and ignition. The invention is characterized in that at least the cylinder with reduced power in relation to the load is detected in the motor control by means of the cylinder control program using a cylinder characteristic signal and deviations from predetermined operating characteristic data are detected at predetermined intervals as "normal operation" and in that deviations exceeding the predetermined operating characteristic data are detected as misfires and a regulation signal is generated.

    Abstract translation: 本发明涉及一种用于检测燃烧失火的方法在与电磁阀驱动器，它们通过电子发动机控制受控变量，其中，由一与负荷有关的控制的操作期间经由气缸控制程序的马达控制器还通过单独实现在一个或多个汽缸的内燃活塞发动机 影响它们的性能比其他点火的气缸的燃料供给和点火都至少降低，这是由具有气缸识别信号汽缸控制程序在相应的负荷情况下，至少降低它的动力气缸和在其预定的时间间隔，其特征在于，在所述电动机控制 的预定的操作特性产生的偏差被检测为“正常运行”，并且超出预定操作特性的偏差，因为他不发火 已知，并且产生致动信号。

    METHOD FOR DETECTING AN ABNORMAL DISTURBANCE OF AN INTERNAL COMBUSTION ENGINE TORQUE
    29.
    发明申请
    METHOD FOR DETECTING AN ABNORMAL DISTURBANCE OF AN INTERNAL COMBUSTION ENGINE TORQUE 审中-公开
    检测内燃机发动机扭矩异常干扰的方法

    公开(公告)号：WO99013310A1

    公开(公告)日：1999-03-18

    申请号：PCT/FR1998/001895

    申请日：1998-09-04

    IPC: G01M15/04 ,  F02D45/00 ,  G01M15/11 ,  G01M15/00

    CPC classification number: G01M15/11

    Abstract: The invention concerns a method for detecting an abnormal disturbance of an internal combustion engine torque and suspending the functioning of a system diagnosing combustion misfiring, operating by analysis of values (Cg,n,i) of a quantity representing the quality of combustion by observing the engine crankshaft rotation. The invention is characterised in that it consists in: defining a stability criterion (ECg,n,i) of said quantity (Cg) for each of the engine cylinders (i); comparing, after each combustion (n), said stability criterion (ECg,n,i) with a predetermined threshold (Sstab), and detecting an abnormal torque disturbance when said stability criterion (ECg,n,i) is greater than said threshold (Sstab) for a given number (p) of consecutive times for at least one cylinder (i).

    Abstract translation: 本发明涉及一种用于检测内燃机扭矩的异常干扰的方法，并且通过观察表示燃烧质量的量的值（Cg，n，i）来观察燃烧失火的系统的功能，并暂停燃烧失火的功能 发动机曲轴旋转。 本发明的特征在于：为每个发动机气缸（i）定义所述量（Cg）的稳定性标准（ECg，n，i）; 在每个燃烧（n）之后，将具有预定阈值（Sstab）的所述稳定性标准（ECg，n，i）进行比较，并且当所述稳定性标准（ECg，n，i）大于所述阈值时，检测异常转矩扰动 Sstab）对于至少一个气缸（i）的连续给定数量（p）。

    VERFAHREN UND VORRICHTUNG ZUR DIAGNOSE EINER BRENNKRAFTMASCHINE EINES ANTRIEBSSTRANGS
    30.
    发明申请
    VERFAHREN UND VORRICHTUNG ZUR DIAGNOSE EINER BRENNKRAFTMASCHINE EINES ANTRIEBSSTRANGS 审中-公开

    公开(公告)号：WO2022194416A1

    公开(公告)日：2022-09-22

    申请号：PCT/EP2021/086829

    申请日：2021-12-20

    Applicant: VITESCO TECHNOLOGIES GMBH

    Inventor： SCHROTH, Stefan ,  HERZIG, Heiko

    IPC: F02D41/00 ,  F02D41/02 ,  F02D41/14 ,  F02D41/22 ,  G01M15/11

    Abstract: Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Diagnose einer Brennkraftmaschine (110) eines Antriebsstrangs (100), wobei der Antriebsstrang (100) die Brennkraftmaschine (110) und eine Getriebeeinheit (150) aufweist und die Diagnose mittels eines Laufunruhesignals erfolgt wobei eventuell aktiv ein Gangwechsel angefordert wird, mit den folgenden Schritten: Ermitteln eines Diagnosewerts der Brennkraftmaschine (110) im Betrieb mittels des Laufunruhesignals der Brennkraftmaschine (110), wobei der Antriebsstrang (100) mit einem Diagnosegang der Getriebeeinheit (150) betrieben wird; Erfassen des Diagnosegangs, der in der Getriebeeinheit (150) während des Ermittelns des Diagnosewerts eingelegt ist; Vergleichen des ermittelten Diagnosewerts mit einem vordefinierten Diagnoseschwellenwert und vergleichen des Diagnosegangs der Getriebeeinheit (150) mit mindestens einem vordefinierten Gang der Getriebeeinheit (150).

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