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    A system for the complete diagnosis of a driver
    1.
    发明公开
    A system for the complete diagnosis of a driver 有权
    Einrichtung zurvollständigen诊断eine Treibers

    公开(公告)号：EP1052518A1

    公开(公告)日：2000-11-15

    申请号：EP99830294.7

    申请日：1999-05-13

    Applicant: STMicroelectronics S.r.l. ,  MAGNETI MARELLI S.p.A.

    Inventor： Milanesi, Andrea ,  Chicca, Stefania ,  Poletto, Vanni ,  Giorgetta, Valerio ,  Sgatti, Stefano ,  Vigna, Sergio

    IPC: G01R31/02

    CPC classification number: G01R31/024

    Abstract: A system is described for the diagnosis of a driver (D) of the type adapted to detect one or more circuit anomalies which can occur in the said driver, including:

    voltage comparator circuits (10, 20) adapted to generate diagnostic logic signals (F 1 , F 2 , F 3 ) each indicative of the existence of a corresponding type of anomaly; and
    a coding circuit (M, SM) adapted to receive these diagnostic signals (F 1 , F 2 , F 3 ) and to output information relating to an overall operating state of the circuit. The coding circuit (M, SM) includes a first portion adapted to provide at its output first logic signals (SHB, SHG, OL) indicative of the last anomaly occurred since a system reset operation, and a second portion for coding such first logic signals (SHB, SHG, OL). The second portion includes a sequential logic network (SM) adapted to:


    receive the first logic input signals (SHB, SHG, OL) and at least one second logic signal (IN) indicative of the current operating phase of the driver (D); and
    achieve, as a function of the said first and second logic signals (SHB, SHG, OL; IN) a stable internal state such as to determine at the output information in the form of an N bit coded word representative of an occurred anomaly, of a condition of absence of anomaly in the current operating phase, or of a condition of absence of anomaly in any operating phase.

    Abstract translation: 描述了用于诊断适于检测可能发生在所述驱动器中的一个或多个电路异常的类型的驱动器（D）的系统，包括：适于产生诊断逻辑信号的电压比较器电路（10,20）（F1 ，F2，F3），每个指示存在相应类型的异常; 以及适于接收这些诊断信号（F1，F2，F3）的编码电路（M，SM），并且输出与电路的总体工作状态有关的信息。 编码电路（M，SM）包括适于在其输出端提供指示自系统复位操作以来发生的最后异常的第一逻辑信号（SHB，SHG，OL）的第一部分和用于对这些第一逻辑信号进行编码的第二部分 （SHB，SHG，OL）。 第二部分包括适于：接收第一逻辑输入信号（SHB，SHG，OL）的顺序逻辑网络（SM）和指示驾驶员（D）的当前操作阶段的至少一个第二逻辑信号（IN）; 并且作为所述第一和第二逻辑信号（SHB，SHG，OL; IN）的函数实现稳定的内部状态，例如以表示发生的异常的N位编码字的形式在输出信息处确定， 在当前运行阶段没有异常的情况，或任何运行阶段没有异常的情况。

    Method for recalibrating the injection law of a fuel injector
    2.
    发明公开
    Method for recalibrating the injection law of a fuel injector 审中-公开
    Verfahren zur Aktualisieren der Kennlinie eines Kraftstoffinjektors

    公开(公告)号：EP2672096A1

    公开(公告)日：2013-12-11

    申请号：EP13170948.7

    申请日：2013-06-06

    Applicant: Magneti Marelli S.p.A.

    Inventor： Sgatti, Stefano ,  Parotto, Marco ,  Serra, Gabriele ,  Sensi, Fabio

    IPC: F02D41/24

    CPC classification number: F02M69/50 ,  F02D41/2467 ,  F02D41/247 ,  F02D41/402 ,  F02D2200/0602 ,  F02D2200/0616

    Abstract: A method for refreshing the injection law of a fuel injector (4) to be tested in an injection system; the method includes the steps of: establishing the desired fuel quantity (Qd) for the fuel injector (4) to be tested; performing at least one first measurement opening of the fuel injector (4) to be tested in a test actuation time (T); determining a pressure drop (ΔP) in a common rail (5) during the first measurement opening of the fuel injector (4) to be tested; determining a first fuel quantity (Q1) which is fed during the first measurement opening; calculating a second fuel quantity (Q2) as the difference between the desired fuel quantity (Qd) and the first fuel quantity (Q1); and performing a second completion opening of the fuel injector (4) to be tested for feeding the second fuel quantity (Q2) needed to reach the desired fuel quantity (Qd).

    Abstract translation: 一种用于刷新在喷射系统中待测试的燃料喷射器（4）的喷射定律的方法; 该方法包括以下步骤：为待测试的燃料喷射器（4）建立所需燃料量（Qd）; 在测试启动时间（T）中执行待测试的燃料喷射器（4）的至少一个第一测量开口; 在待测试的燃料喷射器（4）的第一测量开口期间确定共轨（5）中的压降（“P”）; 确定在第一测量开口期间被馈送的第一燃料量（Q1）; 计算作为期望燃料量（Qd）与第一燃料量（Q1）之间的差的第二燃料量（Q2）; 以及执行待测试的燃料喷射器（4）的第二完成开口以供给达到所需燃料量（Qd）所需的第二燃料量（Q2）。

    A method for detecting a misfire condition in an internal combustion engine
    5.
    发明公开
    A method for detecting a misfire condition in an internal combustion engine 有权
    Verfahren zur Detektion einesFehlzündungszustandsin einem Verbrennungsmotor

    公开(公告)号：EP2557408A1

    公开(公告)日：2013-02-13

    申请号：EP12180344.9

    申请日：2012-08-13

    Applicant: Magneti Marelli S.p.A.

    Inventor： Caterini CANIO, Rocco ,  Alunni, Francesco ,  De Luca, Luigi ,  Sgatti, Stefano

    IPC: G01M15/04 ,  G01M15/11

    CPC classification number: G01M15/11 ,  F02B77/085 ,  F02B77/086 ,  F02B77/087 ,  G01M15/042 ,  G06F17/16

    Abstract: A method for detecting a misfire condition in an internal combustion engine (1) provided with a driving shaft (4) to which a phonic wheel (5) is splined, which phonic wheel (5) is coupled to a sensor (7); the method is characterized by detecting the intensity of the signal (S) generated by the passage of the teeth (6) of the phonic wheel (5) by means of the sensor (7); sampling the signal (S) generated by the passage of the teeth (6) of the phonic wheel (5); processing the sampled signal (S) by applying a Discrete Fourier Transform (DFT); determining the presence of a misfire condition as a function of the signal (S) which has been sampled and processed by means of the Discrete Fourier Transform.

    Abstract translation: 一种用于检测内燃机（1）中的失火状态的方法，所述内燃机设有驱动轴（4），所述声轮（5）被花键化，所述声轮（5）联接到传感器（7）; 该方法的特征在于通过传感器（7）检测通过声轮（5）的齿（6）产生的信号（S）的强度; 对由声轮（5）的齿（6）通过而产生的信号（S）进行采样; 通过应用离散傅里叶变换（DFT）处理采样信号（S）; 根据已经通过离散傅立叶变换采样和处理的信号（S）来确定存在失火条件。

    Method of diagnosing the efficiency of an exhaust gas stoichiometric composition sensor placed downstream of a catalytic converter
    6.
    发明公开
    Method of diagnosing the efficiency of an exhaust gas stoichiometric composition sensor placed downstream of a catalytic converter 失效
    诊断化学计量的排气传感器的下游催化剂​​的效率的方法

    公开(公告)号：EP0796988A2

    公开(公告)日：1997-09-24

    申请号：EP97104063.9

    申请日：1997-03-11

    Applicant: MAGNETI MARELLI S.p.A.

    Inventor： Carnevale, Claudio ,  Bianconi, Paola ,  Sgatti, Stefano

    IPC: F02D41/14 ,  F02D41/22

    CPC classification number: F02D41/1474 ,  F02D41/123 ,  F02D41/1454 ,  F02D41/148 ,  F02D41/1495 ,  F02D2200/021

    Abstract: The method of diagnosis determines the state of deterioration of an exhaust gas stoichiometric composition sensor placed downstream of a catalytic converter. The catalytic converter is mounted on an exhaust manifold of an internal combustion engine supplied with an air/fuel mixture, while the sensor generates an output signal correlated with the stoichiometric composition of the mixture. The method comprises the phases of registering a temperature signal correlated with the temperature of the engine; determining the operating range of the engine; determining the stoichiometric composition of the air/fuel mixture; and effecting a hot diagnosis should the temperature signal be greater than a preset reference value, the engine be in the idle operating range and the sensor register a weak stoichiometric composition of the mixture. The hot diagnosis comprises the phases of generating control signals for the engine and of gauging the output signal from the sensor.

    Abstract translation: 诊断确定性地雷的方法的废气化学计量组成传感器的劣化的下游放置催化转换器的状态。 催化转化器安装在与空气/燃料混合物提供的内燃机的排气歧管，而在与所述混合物的化学计量组成相关率产生的传感器输出信号。 该方法包括：注册与所述发动机的温度相关的温度信号的相位; 确定性采矿发动机的运行范围; 确定性开采空气/燃料混合物的化学计量组成; 实现和热诊断shoulderstand温度信号比预先设定的基准值时，发动机处于怠速运行范围和传感器记录的混合物的弱化学计量组成。 热诊断包括用于发动机和测量来自传感器的输出信号的产生控制信号的相位。

    Method for controlling with adaptivity a wastegate in a turbocharged internal combustion engine
    10.
    发明公开
    Method for controlling with adaptivity a wastegate in a turbocharged internal combustion engine 有权
    自适应Steuerung eines Abblasventils einer turboaufgeladenen Verbrennungsmaschine

    公开(公告)号：EP2314846A1

    公开(公告)日：2011-04-27

    申请号：EP10187607.6

    申请日：2010-10-14

    Applicant: Magneti Marelli S.p.A.

    Inventor： Panciroli, Marco ,  Alunni, Francesco ,  Sgatti, Stefano

    IPC: F02D23/02 ,  F02D41/14 ,  F02D41/00 ,  F02B37/18

    CPC classification number: F02D41/0007 ,  F02B37/16 ,  F02B37/18 ,  Y02T10/144

    Abstract: A method for controlling the wastegate (16) in a turbocharged internal combustion engine (1); the method contemplates the steps of: determining, during a design phase, a control law (CL) which provides an objective opening of a controlling actuator (35) of the wastegate (16) according to the supercharging pressure (P); determining an objective supercharging pressure (P obj ); measuring an actual supercharging pressure (P); determining a first open loop contribution (WG OL ) of an objective position (WG obj ) of a controlling actuator (35) of the wastegate (16) by means of the control law (CL) and according to the objective supercharging pressure (P obj ); determining a second closed loop contribution (WG CL1 ) of the objective position (WG obj ) of the controlling actuator (35) of the wastegate (16); and calculating the objective position (WG obj ) of the controlling actuator (35) of the wastegate (16) by adding the two contributions (WG OL ,WG CL1 ).

    Abstract translation: 一种用于控制涡轮增压内燃机（1）中的废气门（16）的方法; 该方法考虑以下步骤：在设计阶段期间，确定根据增压压力（P）提供废气门（16）的控制致动器（35）的客观打开的控制规律（CL）; 确定目标增压压力（P obj）; 测量实际增压压力（P）; 通过控制规则（CL）和根据目标增压压力（P obj）确定废气门（16）的控制致动器（35）的目标位置（WG obj）的第一开环贡献（WG OL） ）; 确定废气门（16）的控制致动器（35）的目标位置（WG obj）的第二闭环贡献（WG CL1）; 以及通过添加两个贡献（WG OL，WG CL1）来计算废气门（16）的控制致动器（35）的目标位置（WG obj）。

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