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    Balancing method for the cylinders of an internal combustion engine
    11.
    发明公开
    Balancing method for the cylinders of an internal combustion engine 有权
    Verfahren zum Ausgleichen des Zylinders einer Brennkraftmaschine

    公开(公告)号：EP2243942A1

    公开(公告)日：2010-10-27

    申请号：EP10160638.2

    申请日：2010-04-21

    Applicant: Magneti Marelli S.p.A.

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

    IPC: F02D41/00

    CPC classification number: F02D41/0085 ,  F02D31/005 ,  F02D41/0002 ,  F02D41/32 ,  F02D2200/0402 ,  F02D2200/0406 ,  Y02T10/42

    Abstract: A balancing method of the cylinders (2) of an internal combustion engine (1); the balancing method includes the steps of: determining, during a design phase, a first investigation window (Wa) associated to a first cylinder (2a); determining, during the design phase, a second investigation window (Wb) associated to a second cylinder (2b); sampling, during an engine cycle, the measure of the instantaneous intake pressure provided by at least one pressure sensor (13) coupled to at least one intake duct (3); determining a first balance index (Ia) associated to the first cylinder (2a) by calculating an average of the instantaneous intake pressures within the first investigation window (Wa); determining a second balance index (Ib) associated to the second cylinder (2b) by calculating an average of the instantaneous intake pressures within the second investigation window (Wb); and determining the degree of unbalance of the two cylinders (2) according to the balance indexes (Ia, Ib).

    Abstract translation: 内燃机（1）的气缸（2）的平衡方法; 所述平衡方法包括以下步骤：在设计阶段期间确定与第一气缸（2a）相关联的第一调查窗口（Wa）; 在设计阶段确定与第二气缸（2b）相关联的第二调查窗口（Wb）; 在发动机循环期间对由至少一个进气管道（3）连接的至少一个压力传感器（13）提供的瞬时进气压力的测量进行采样; 通过计算第一调查窗口（Wa）内的瞬时进气压力的平均值来确定与第一气缸（2a）相关联的第一平衡指数（Ia）; 通过计算第二调查窗口（Wb）内的瞬时进气压力的平均值来确定与第二气缸（2b）相关联的第二平衡指数（Ib）; 以及根据平衡指数（Ia，Ib）确定两个气缸（2）的不平衡程度。

    Electronic air-fuel ratio control system for internal combustion engines
    12.
    发明公开
    Electronic air-fuel ratio control system for internal combustion engines 失效
    内燃机电子空燃比控制系统

    公开(公告)号：EP0952322A3

    公开(公告)日：1999-11-03

    申请号：EP99109875.7

    申请日：1995-07-18

    Applicant: MAGNETI MARELLI S.p.A.

    Inventor： Carnevale, Claudio ,  Coin, Davide ,  Marica, Stefano ,  Serra, Gabriele ,  Sgatti, Stefano

    IPC: F02D41/14 ,  F02D41/22

    CPC classification number: F02D41/1441 ,  F02D41/1482 ,  F02D41/1495 ,  F02D2041/1409 ,  F02D2041/1422

    Abstract: An electronic concentration control system in which a first exhaust gas composition sensor (16) located in an exhaust pipe (9) downstream from a catalytic converter (11) is connected to an input to a P.I. circuit (28) which generates a control output signal (K02) comprising a succession of opposing triangular ramps. The system includes a second exhaust gas composition sensor (14) located in the exhaust pipe (9) upstream from the catalytic converter (11) generating a signal which is fed to a proportional integral circuit (30) whose integrating and multiplying coefficients (Ki,Kp) are altered on the basis of the control signal (K02). The system further comprises a diagnostic circuit (50) for detecting malfunction function of the second exhaust gas composition sensor (14).

    Abstract translation: 一种电子浓度控制系统，其中位于催化转换器（11）下游的排气管（9）中的第一排气成分传感器（16）连接到P.I的输入端。 电路（28）产生包括一系列相对的三角形斜坡的控制输出信号（K02）。 该系统包括位于催化转化器（11）上游的排气管（9）中的第二废气成分传感器（14），其产生信号，该信号被馈送到比例积分电路（30），积分和积分系数（Ki， Kp）根据控制信号（K02）改变。 该系统还包括用于检测第二排气成分传感器（14）的故障功能的诊断电路（50）。

    Method for controlling fuel injection in a multifuel internal-combustion engine in the event of a request for fuel switching
    13.
    发明公开
    Method for controlling fuel injection in a multifuel internal-combustion engine in the event of a request for fuel switching 有权
    一种用于在请求的情况下控制燃料喷射的多燃料内燃机为燃料的切换方法

    公开(公告)号：EP2527623A2

    公开(公告)日：2012-11-28

    申请号：EP12169094.5

    申请日：2012-05-23

    Applicant: Magneti Marelli S.p.A.

    Inventor： Sgatti, Stefano ,  Sensi, Fabio ,  Garagnani, Nicola ,  Zanotti, Massimo ,  Atzori, Roberto ,  Cavanna, Filippo

    IPC: F02D19/06

    CPC classification number: F02D19/0647 ,  F02D19/0605 ,  F02D19/061 ,  F02D19/0615 ,  F02D19/0628 ,  F02D19/0692 ,  F02D41/08 ,  F02D41/123 ,  F02D2250/21 ,  Y02T10/36

    Abstract: A method for controlling fuel injection in a multifuel internal-combustion engine (1); the control method envisages the steps of: receiving a request for fuel switching at a first instant (T 0 ); waiting, starting from the first instant (T 0 ), for a first time interval (A) during which fuel switching has never been performed; carrying out, starting from a second instant (T 1 ) and for a second time interval (B), fuel switching only if a cut-off phase or else an idling phase occurs; carrying out, starting from a third instant (T 2 ) and for a third time interval (C), fuel switching only if a cut-off phase, an idling phase, or else a stabilized-r.p.m. phase occurs; and carrying out, starting from a fourth instant (T 3 ) fuel switching in any condition.

    Abstract translation: 一种用于在多燃料内燃机（1）的燃料喷射控制方法; 该控制方法设想的以下步骤：在第一时刻接收对燃料转换的请求（T 0）; 等待，从第一时刻开始（T 0）为其中燃料切换期间的第一时间间隔（A）从未进行过; 进行，从第二时刻（T 1）和第二时间间隔（B）开始，燃料切换只有在截止阶段或者空转阶段的发生; 进行，从第三时刻（T 2）和第三时间间隔（C），起动燃料切换只有在截止阶段，在空转阶段，或者稳定，每分钟转数.. 仍会发生相位; 并执行，从第四时刻开始（T 3）在任何条件下的燃料切换。

    Zone controlled method for controlling a wastegate in a turbocharged internal combustion engine
    15.
    发明公开
    Zone controlled method for controlling a wastegate in a turbocharged internal combustion engine 有权
    Verfahren zur Zonensteuerung eines Abgasventils in einem涡轮增压器Verbrennungsmotor

    公开(公告)号：EP2314847A1

    公开(公告)日：2011-04-27

    申请号：EP10187609.2

    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 ,  F02B37/186 ,  F02D41/1401 ,  F02D2041/1409 ,  F02D2041/141 ,  F02D2041/142 ,  F02D2041/1422 ,  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）。

    Method for controlling the knocking in an internal-combustion engine
    16.
    发明公开
    Method for controlling the knocking in an internal-combustion engine 有权
    在einer Brennkraftmaschine的Verfahren zur Klopfregelung

    公开(公告)号：EP2253832A1

    公开(公告)日：2010-11-24

    申请号：EP10162798.2

    申请日：2010-05-13

    Applicant: Magneti Marelli S.p.A.

    Inventor： Cavanna, Filippo ,  Sgatti, Stefano ,  Garagnani, Nicola ,  Caterini, Rocco Canio ,  Vitale, Fabio

    IPC: F02P5/152

    CPC classification number: F02P5/1527 ,  F02D35/027 ,  F02D41/0025 ,  F02D41/2422 ,  F02D41/2451 ,  F02D41/248 ,  Y02T10/46

    Abstract: A method for controlling the knocking in an internal-combustion engine (1), which presents the steps of: determining a spark advance (AA); determining, in a step of design and setting up, at least two adaptive maps (8) that provide at least part of an instantaneous advance correction (CAI) of the spark advance (AA) according to the engine point for fuels with high anti-knock value and for fuels with low anti-knock value, respectively; recognizing the anti-knock value of the fuel introduced through refuelling; using, for determining the instantaneous advance correction (CAI) according to the engine point, the adaptive map (8) corresponding to the anti-knock value of the fuel in use; applying the instantaneous advance correction (CAI) to the spark advance (AA); detecting onset of phenomena of knocking; and updating the instantaneous advance correction (CAI) according to onset of phenomena of knocking.

    Abstract translation: 一种用于控制内燃机（1）中的爆震的方法，其具有以下步骤：确定火花提前（AA）; 在设计和设置的步骤中，确定至少两个自适应图（8），所述至少两个自适应图（8）根据具有高反燃性的燃料的发动机点提供火花提前（AA）的至少一部分瞬时提前校正（CAI） 分别为爆震值和低爆震值的燃料; 认识到通过加油引入的燃料的防爆值; 用于根据所述发动机点确定所述瞬时提前校正（CAI），所述自适应图（8）对应于所使用的燃料的抗爆震值; 将瞬时提前校正（CAI）应用于火花提前（AA）; 检测爆震现象; 并根据爆震现象的发生更新瞬时提前校正（CAI）。

    Electronic gas concentration control system
    19.
    发明公开
    Electronic gas concentration control system 失效
    电子气体浓度控制系统

    公开(公告)号：EP0694685A2

    公开(公告)日：1996-01-31

    申请号：EP95111275.4

    申请日：1995-07-18

    Applicant: MAGNETI MARELLI S.p.A.

    Inventor： Carnevale, Claudio ,  Coin, Davide ,  Marica, Stefano ,  Serra, Gabriele ,  Sgatti, Stefano

    IPC: F02D41/22 ,  F02D41/14

    CPC classification number: F02D41/1441 ,  F02D41/1482 ,  F02D41/1495

    Abstract: An electronic concentration control system in which a first exhaust gas composition sensor (16) located in an exhaust pipe (9) downstream from a catalytic converter (11) is connected to an input to a P.I. circuit (28) which generates a control output signal (K02) comprising a succession of opposing triangular ramps. The system includes a second exhaust gas composition sensor (14) located in the exhaust pipe (9) upstream from the catalytic converter (11) generating a signal which is fed to a proportional integral circuit (30) whose integrating and multiplying coefficients (Ki,Kp) are altered on the basis of the control signal (K02).
    The system includes a diagnostic circuit (50) which checks the efficiency of the first and second sensors (16, 14).

    Abstract translation: 一种电子浓度控制系统，其中位于催化转换器（11）下游的排气管（9）中的第一排气成分传感器（16）连接到P.I的输入端。 电路（28）产生包括一系列相对的三角形斜坡的控制输出信号（K02）。 该系统包括位于催化转化器（11）上游的排气管（9）中的第二废气成分传感器（14），其产生信号，该信号被馈送到比例积分电路（30），积分和积分系数（Ki， Kp）根据控制信号（K02）改变。 该系统包括检查第一和第二传感器（16,14）的效率的诊断电路（50）。

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