Verfahren zum Betrieb einer Kolbenbrennkraftmaschine bei zeitweiligem Funktionsausfall eines elektromagnetischen Ventiltriebs
    241.
    发明公开
    Verfahren zum Betrieb einer Kolbenbrennkraftmaschine bei zeitweiligem Funktionsausfall eines elektromagnetischen Ventiltriebs 有权
    的电磁阀驱动器的功能暂时丧失期间操作往复式内燃发动机的方法

    公开(公告)号:EP1096113A2

    公开(公告)日:2001-05-02

    申请号:EP00119080.0

    申请日:2000-09-02

    CPC classification number: F01L9/04 F01L2201/00

    Abstract: Die Erfindung betrifft ein Verfahren zum Betrieb einer Kolbenbrennkraftmaschine mit elektromagnetischen Ventiltrieben zur Betätigung der Gaswechselventile, die jeweils einen zwischen zwei Elektromagneten gegen die Kraft von Rückstellfedern bewegbare und mit einem Gaswechselventil in Verbindung stehenden Anker aufweisen und, die über eine elektronische Motorsteuerung vollvariabel ansteuerbar sind, das dadurch gekennzeichnet ist, daß in der Motorsteuerung im Betrieb die Funktion der elektromagnetischen Ventiltriebe eines jeden Zylinders erfaßt wird und daß beim Erkennen eines Funktionsausfalls eines elektromagnetischen Ventiltriebs an einem Zylinder der Elektromagnet des ausgefallenen elektromagnetischen Ventiltriebs mit einem Fangstrom beaufschlagt wird, der den Anker in die Endstellung an einem Elektromagneten bringt, und daß aus dieser Endstellung heraus der elektromagnetische Ventiltrieb für den laufenden Arbeitstakt des Zylinders angesteuert wird.

    Abstract translation: 发动机运行方法来响应所述电磁操作的驱动器(7.1,7.2),用于发动机气缸(1)中的一个的改变气体阀的检测到的故障的功能,由电子发动机控制指示的,用于供给电磁铁(8.9 )失败的气体改变阀与当前用于使阀电枢(10)到给定的端部位置,与由用于恢复气缸操作周期该最终位置用于移动的电磁操作的驱动控制。 燃料供给至发动机气缸CORRESPONDING可检测到的功能故障期间被中断。

    Intake air control system of internal combustion engine
    242.
    发明公开
    Intake air control system of internal combustion engine 有权
    SaugluftsteuerungssystemfürBrennkraftmaschinen

    公开(公告)号:EP1020625A2

    公开(公告)日:2000-07-19

    申请号:EP00100452.2

    申请日:2000-01-10

    Abstract: An intake air control system is arranged in an engine. The engine has an air intake passage, a throttle valve installed in the air intake passage and an intake valve for selectively opening and closing a communication between the intake passage and a cylinder. The control system comprises a target intake passage pressure setting unit which sets a target pressure in an intake passage of the engine in accordance with an operating condition of the engine; a target intake air amount setting unit which sets a target intake air amount of the engine in accordance with the operating condition of the engine; a target throttle open degree setting unit which sets a target open degree of the throttle valve of the engine in accordance with both the target pressure in the intake passage and the target intake air amount of the engine; a throttle valve drive unit which drives the throttle valve in accordance with the target open degree of the throttle valve; an intake passage pressure detecting unit which detects an existing pressure in the intake passage; a target intake valve OPEN/CLOSE timing setting unit which sets a target OPEN/CLOSE timing of the intake valve in accordance with both the detected existing pressure in the intake passage and the target intake air amount; and an intake valve drive unit which drives the intake valve in accordance with the target OPEN/CLOSE timing of the intake valve.

    Abstract translation: 在发动机中设置进气控制系统。 发动机具有进气通道,安装在进气通道中的节流阀和用于选择性地打开和关闭进气通道和气缸之间的连通的进气门。 控制系统包括:目标进气通道压力设定单元,其根据发动机的运行状态设定发动机的进气通道中的目标压力; 目标进气量设定单元,其根据发动机的运转状况来设定发动机的目标进气量; 目标节气门开度设定单元,其根据进气通路中的目标压力和发动机的目标进气量两者来设定发动机的节气门的目标开度; 节气门驱动单元,其根据节气门的目标开度来驱动节气门; 进气通道压力检测单元,其检测进气通道中的现有压力; 目标进气门OPEN / CLOSE正时设定单元,其根据检测到的进气通道中的现有压力和目标进气量来设定进气门的目标OPEN / CLOSE正时; 以及进气门驱动单元,其根据进气门的目标OPEN / CLOSE正时驱动进气门。

    CONTROL DEVICE FOR AN INTERNAL COMBUSTION ENGINE
    245.
    发明公开
    CONTROL DEVICE FOR AN INTERNAL COMBUSTION ENGINE 失效
    用于内燃机的控制装置

    公开(公告)号:EP0854280A1

    公开(公告)日:1998-07-22

    申请号:EP95932952.5

    申请日:1995-10-02

    Applicant: Hitachi, Ltd.

    Abstract: In an internal combustion engine control system for controlling an internal combustion engine, comprising a fuel injection control means for controlling fuel injection quantity to be injected by a fuel supply system for supplying fuel to the internal combustion engine, and fuel injection timing, and a variable valve control means for continuously or gradually varying at least opening timing, closing timing or lift of a intake valve or an exhaust valve for sealing up a combustion chamber of the internal combustion engine, the fuel injection control means controls at least fuel injection quantity or fuel injection timing on the basis of a value of a controlled variable provided by the variable valve control means. Since air quantity can be regulated by a variable valve timing mechanism, pumping loss and fuel consumption can be reduced. Fuel injected into the combustion chamber can be atomized by opening the intake valve so that a shock wave is generated in the combustion chamber and, consequently, stable combustion can be achieved without deteriorating the quality of the exhaust gas.

    Abstract translation: 在用于控制内燃机的内燃机控制系统中,该内燃机控制系统包括:燃料喷射控制装置,用于控制由用于向内燃机供应燃料的燃料供应系统喷射的燃料喷射量,以及燃料喷射正时; 阀控制装置,用于连续地或逐渐地改变用于密封内燃机的燃烧室的进气阀或排气阀的打开正时,关闭正时或升程,燃料喷射控制装置至少控制燃料喷射量或燃料 喷射正时基于由可变气门控制装置提供的受控变量的值。 由于可以通过可变气门正时机构调节空气量,所以可以减少泵送损失和燃料消耗。 喷射到燃烧室中的燃料可以通过打开进气阀而雾化,从而在燃烧室中产生冲击波,并且因此可以实现稳定的燃烧而不降低排气的质量。

    Intake air control apparatus for engines
    246.
    发明公开
    Intake air control apparatus for engines 失效
    Gerätzur AnsaugluftsteuerungfürMotoren

    公开(公告)号:EP0831218A2

    公开(公告)日:1998-03-25

    申请号:EP97401985.3

    申请日:1997-08-25

    Inventor: Kato, Senji

    Abstract: An improved apparatus is provided to control supply of airflow to an engine (1). The engine (1) includes a combustion chamber (4) connected to an air intake passage (6) and an air exhaust passage (7). An air intake valve (8) selectively opens and closes the intake passage (6) to control the supply of the airflow to the combustion chamber (4). An air exhaust valve (9) selectively opens and closes the exhaust passage (7) to control the discharge of the exhaust gas from the combustion chamber (4). An altering device alters a period of an overlap of the valves by changing a valve timing of valves. A first detector detects a driving state of the engine (1). An ECU (80) computes a target valve timing based on the detected driving state of the engine (1) controls the altering device (25) based on the computed target valve timing. An adjusting device (23,24) is arranged in the intake passage to adjust the supply of the airflow to the combustion chamber (4). The ECU (80) computes a target amount of the airflow to be supplied to the engine (1) in an idling state. The ECU (80) detects the period of the valve overlap. The ECU (80) computes a correction value to correct the target amount of the air based on the detected period of the valve overlap. The correction value is continuously variable based on the period of the valve overlap. The ECU (80) corrects the target amount based on the correction value by increasing the target amount by the correction value and controls the adjusting device (23,24) based on the corrected target amount.

    Abstract translation: 提供了一种改进的装置来控制向发动机(1)供应气流。 发动机(1)包括连接到进气通道(6)和排气通道(7)的燃烧室(4)。 进气门(8)选择性地打开和关闭进气通道(6),以控制向燃烧室(4)供应气流。 排气阀(9)选择性地打开和关闭排气通道(7)以控制来自燃烧室(4)的废气的排放。 更换装置通过改变阀的气门正时来改变阀的重叠周期。 第一检测器检测发动机(1)的驱动状态。 ECU(80)基于检测到的发动机的驱动状态(1),基于计算出的目标气门正时来控制变更装置(25)来计算目标气门正时。 调节装置(23,24)布置在进气通道中以调节向燃烧室(4)供应的气流。 ECU(80)以空转状态计算要供给到发动机(1)的气流的目标量。 ECU(80)检测阀重叠的周期。 ECU(80)基于检测到的阀重叠的周期计算校正值以校正目标空气量。 校正值基于阀重叠的周期连续变化。 ECU(80)通过将目标量增加校正值,基于校正值来校正目标量,并且基于校正的目标量来控制调整装置(23,24)。

    Verfahren und Vorrichtung zur Überwachung der Stellung einer variablen Ventilsteuerung
    247.
    发明公开
    Verfahren und Vorrichtung zur Überwachung der Stellung einer variablen Ventilsteuerung 失效
    Verfahren und Vorrichtung zurÜberwachungder Stellung einer variablen Ventilsteuerung

    公开(公告)号:EP0818619A2

    公开(公告)日:1998-01-14

    申请号:EP97109469.3

    申请日:1997-06-11

    Abstract: Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Überwachung der Stellung einer variablen Ventilsteuerung. Um eine Überwachung der Stellung einer variablen Ventilsteuerung zu schaffen, bei der der bauliche Aufwand vermindert ist, wird vorgeschlagen, eine zylinderspezifische Analyse der Drehungleichförmigkeit der Kurbelwelle durchzuführen und hieraus den Betriebszustand der Ventilsteuerung, ggf. für jeden einzelnen Zylinder, zu bestimmen.

    Abstract translation: 该方法包括确定发动机曲轴转速的均匀性,评估均匀度w.r.t。 发动机的燃烧状态并将燃烧状态与可变气门控制器的设定相关联。 通过在发动机的所有气缸上形成转速均匀度的平均值来评估均匀性。 燃烧状态与阀门控制(VVC)设置相关联,通过根据发动机转速和负载形成平均值与标准值的偏差,并将偏差程度与控制器的当前设置相关联。

    AUTOCALIBRATION OF CAMSHAFT PHASING FEEDBACK IN A VARIABLE VALVE TIMING SYSTEM
    248.
    发明授权
    AUTOCALIBRATION OF CAMSHAFT PHASING FEEDBACK IN A VARIABLE VALVE TIMING SYSTEM 失效
    DEVICE FOR CALIBRATION调整凸轮轴的角度的可变阀正时系统的。

    公开(公告)号:EP0483192B1

    公开(公告)日:1994-09-28

    申请号:EP90910662.7

    申请日:1990-07-13

    Abstract: Autocalibration of the camshaft phasing sensor of a closed-loop variable valve timing system of an internal combustion engine. The camshaft phasing adjustment mechanism comprises a cam that changes the camshaft phasing. This cam is provided with a dwell that occurs at a known true phasing of the camshaft. The cam is commanded to operate to the dwell, and the lack of change in the sensor output indicates when the dwell is reached. At this time the sensor output should exactly indicate the known camshaft phasing that is produced by the adjustment cam dwell. If it does not, the difference is calculated and forms an offset that is algebraically applied to the sensor output thereby calibrating the sensor.

    ELECTROMAGNETIC VALVE ACTUATOR
    249.
    发明授权

    公开(公告)号:EP0406443B1

    公开(公告)日:1994-02-16

    申请号:EP90901025.8

    申请日:1989-12-28

    Abstract: A valve actuator to open and close the intake and exhaust valves of an engine utilizing the electromagnetic force generated by an electromagnet. A reciprocally moving magnetic pole (6) is coupled to an intake or exhaust valve (9), an upper fixed magnetic pole (3a) is provided to be opposed to an end in the reciprocating direction of the moving magnetic pole (6), an intermediate fixed magnetic pole (3b) is provided to be opposed to one end of the moving magnetic pole (6) and to the upper fixed magnetic pole (3a), and a first tip-fixed magnetic pole (3c) is provided to be opposed to the other end of the moving magnetic pole (6). The intake or exhaust valve (9) is opened by the repelling force that acts between the upper fixed magnetic pole (3a) and one end of the moving magnetic pole (6). Being contiguous to the upper fixed magnetic pole (3a), furthermore, a second tip-fixed magnetic pole (3d) is provided to be opposed to the other end of the moving magnetic pole (6), and the intake or exhaust valve (9) is closed by the attracting force acting between the upper fixed magnetic pole (3a) and one end of the moving magnetic pole (6) that results from the magnetic flux passing through the second tip-fixed magnetic pole (3d). By changing the times for exciting the magnetic poles, therefore, the timings can be controlled to open and close the intake or exhaust valve (9).

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