Method of accurately controlling the armature motion of an
electromagnetic actuator
    1.
    发明授权
    Method of accurately controlling the armature motion of an electromagnetic actuator 失效
    精确控制电磁执行机构电枢运动的方法

    公开(公告)号:US5748433A

    公开(公告)日:1998-05-05

    申请号:US683970

    申请日:1996-07-22

    IPC分类号: F02D41/20 H01F7/18 F01L9/02

    摘要: A method of controlling a motion of an armature away from an electromagnet of an electromagnetic actuator includes the following steps: passing an electric current through a solenoid of the electromagnet for holding the armature at the electromagnet against a resetting force; interrupting the current flow through the solenoid at a desired moment for releasing the armature from the electromagnet; and impressing a current pulse of reverse polarity on the solenoid after interrupting the current flow for launching the armature from the electromagnet.

    摘要翻译: 控制电枢远离电磁致动器的电磁体的运动的方法包括以下步骤:使电流通过用于将电枢保持在电磁体处的电磁体的螺线管抵抗复位力; 在期望的时刻中断通过螺线管的电流,以从电磁体释放电枢; 并且在中断从电磁铁发射电枢的电流流动之后,在螺线管上施加相反极性的电流脉冲。

    Method for controlling an electromagnetic valve drive mechanism for a gas exchange valve in an internal combustion piston engine
    2.
    发明授权
    Method for controlling an electromagnetic valve drive mechanism for a gas exchange valve in an internal combustion piston engine 失效
    一种用于控制内燃活塞式发动机中的气体交换阀的电磁阀驱动机构的方法

    公开(公告)号:US06474276B1

    公开(公告)日:2002-11-05

    申请号:US09743677

    申请日:2001-03-14

    IPC分类号: F01L904

    摘要: A method for controlling an electromagnetic actuator for a cylinder valve in a piston-type internal combustion engine with the actuator being operatively connected to the cylinder valve and moveable back and forth between two electromagnetics, counter to the force of at least one restoring spring. The current supplied to the electromagnetics is controlled with the aid of a sensor arrangement and via an engine control unit such that the current supply to the catching electromagnet, i.e., the electromagnet being approached by the moveable armature of the actuator, is controlled so as to move the armature slowly toward the respective pole face. Moreover, in order to regulate the valve play during the closing movement of a cylinder valve, the current supply to the catching electromagnet is controlled such that the valve initially touches down softly on its seat and that following the valve play, the armature touches down softly on the pole face.

    摘要翻译: 一种用于控制活塞式内燃机中的气缸阀的电磁致动器的方法,其中所述致动器可操作地连接到气缸阀,并且与至少一个复原弹簧的力相反地在两个电磁学之间来回移动。 通过传感器装置和发动机控制单元来控制提供给电磁学的电流,使得对捕获电磁体(即,由致动器的可移动电枢接近的电磁体)的电流供应被控制为 将衔铁缓慢移向相应的极面。 此外,为了在气缸闭塞运动期间调节阀门打开,控制对捕获电磁体的电流供应,使得阀门首先在其座椅上轻轻地接触,并且在阀门打开之后,电枢轻轻地接触 在杆面上

    Method of regulating the armature impact speed in an electromagnetic actuator by controlling the current supply based on performance characteristics
    3.
    发明授权
    Method of regulating the armature impact speed in an electromagnetic actuator by controlling the current supply based on performance characteristics 失效
    通过基于性能特征控制电流供应来调节电磁致动器中的电枢冲击速度的方法

    公开(公告)号:US06373678B1

    公开(公告)日:2002-04-16

    申请号:US09564050

    申请日:2000-05-03

    IPC分类号: H01H5016

    摘要: A method of controlling a supply current applied to an electromagnet of an electromagnetic actuator by a control unit for obtaining a low impact speed of a reciprocating armature of the actuator upon arrival of the armature at a pole face of the electromagnet, includes the following steps: during travel of the armature toward the pole face detecting displacements of the armature and a sequence of the armature speed as actual values; comparing the actual values with a performance characteristic field stored in the control unit and relating to a predetermined relationship between armature speed and armature displacement for the armature travel toward the pole face; determining a desired value for the supply current from the comparison step; comparing an actual value for the supply current with the determined desired value; adjusting the supply current based on a difference between the actual and desired values; and applying the adjusted supply current to the electromagnet.

    摘要翻译: 一种通过控制单元控制施加到电磁致动器的电磁体的供电电流的方法,用于在电枢到达电磁铁的极面时获得致动器的往复电枢的低冲击速度,包括以下步骤: 在电枢向电极的行进期间检测电枢的位移和电枢速度的顺序作为实际值; 将实际值与存储在控制单元中的性能特征场进行比较,并且与电枢速度和衔铁位移之间的预定关系相对于电枢向极面移动; 从所述比较步骤确定所述供应电流的期望值; 将供应电流的实际值与确定的期望值进行比较; 基于实际值和期望值之间的差来调整供电电流; 以及将所调整的供应电流施加到所述电磁体。

    Method for identifying misfirings in a piston internal combustion engine
    4.
    发明授权
    Method for identifying misfirings in a piston internal combustion engine 失效
    识别活塞内燃机失火的方法

    公开(公告)号:US06425355B1

    公开(公告)日:2002-07-30

    申请号:US09644538

    申请日:2000-08-24

    IPC分类号: F01L904

    CPC分类号: G01M15/11 F01L2009/0496

    摘要: A method for recognizing misfires in a piston-type internal-combustion engine with spark ignition and an engine control unit (ECU) for actuating electromagnetic actuators to operate the cylinder valves. The time difference between the opening time preset by the engine control unit and the actual opening time of an exhaust valve is detected as the actual value, then compared to a preset tolerance-time difference as the nominal value, and a signal is generated if this nominal value is not met, i.e., the nominal value exceeds the actual value.

    摘要翻译: 用于识别具有火花点火的活塞式内燃机中的失火的方法和用于致动电磁致动器来操作气缸阀的发动机控制单元(ECU)。 由发动机控制单元预设的打开时间与排气门的实际打开时间之间的时间差被检测为实际值,然后与作为标称值的预设公差时间差进行比较,如果这样 标称值不符合,即标称值超过实际值。