Circuit for ion current measurement in combustion space of an internal
combustion engine
    2.
    发明授权
    Circuit for ion current measurement in combustion space of an internal combustion engine 失效
    内燃机燃烧空间中离子电流测量电路

    公开(公告)号:US5801534A

    公开(公告)日:1998-09-01

    申请号:US675641

    申请日:1996-07-03

    Abstract: An alternating current ignition system which can be used in one of two ways for ion current measurement. On the one hand, an oscillating circuit at the primary end of the ignition coil can be driven such that, after ignition has taken place, an alternating current signal is generated at the primary end; the amplitude of the alternating current signal must be sufficiently low so as not to cause any sparks at the secondary end, but lead to an alternating voltage signal which is modulated in relation to the ionisation degree of the ignition spark gap and thus represents an ion current measurement signal. On the other hand, however, if an auto transformer is used as an ignition coil, the intermediate circuit voltage applying at the primary end will be modulated in the medium-high voltage range of, e.g, 180 V in relation to the degree of ionisation, so that this supply voltage is used as a measurement signal.

    Abstract translation: 交流点火系统,可用于离子电流测量的两种方式之一。 一方面,可以驱动点火线圈的主端的振荡电路,使得在点火发生之后,在主端产生交流信号; 交流信号的振幅必须足够低,以便在次级端不引起任何火花,而是导致相对于点火火花隙的电离度调制的交流电压信号,因此表示离子电流 测量信号。 然而,另一方面,如果使用自动变压器作为点火线圈,则在主端施加的中间电路电压将在相对于电离程度的例如180V的中等高电压范围内被调制 ,使得该电源电压用作测量信号。

    Method for determining an operating parameter of an internal combustion
engine
    3.
    发明授权
    Method for determining an operating parameter of an internal combustion engine 失效
    用于确定内燃机的操作参数的方法

    公开(公告)号:US6125691A

    公开(公告)日:2000-10-03

    申请号:US134485

    申请日:1998-08-14

    CPC classification number: F02D35/021 F02D41/1458 F02D41/0072

    Abstract: A method for determining an operating parameter of an internal combustion engine. An ionic current signal curve at a spark plug of the internal combustion engine is measured for a number of ignitions as a function of time. The measured signal curves are then averaged to obtain an averaged signal curve. A maximum and/or the time of the maximum of the averaged signal curve is determined. Based on the maximum of the average signal curve and/or the time of the maximum of the average signal curve, the operating parameter is calculated.

    Abstract translation: 一种用于确定内燃机的操作参数的方法。 测量内燃机的火花塞处的离子电流信号曲线作为时间的函数的多个点火。 然后对所测量的信号曲线进行平均以获得平均的信号曲线。 确定平均信号曲线的最大值和/或最大值的时间。 基于平均信号曲线的最大值和/或平均信号曲线的最大值的时间,计算运算参数。

    Gasoline internal combustion engine
    4.
    发明授权
    Gasoline internal combustion engine 失效
    汽油内燃机

    公开(公告)号:US5915349A

    公开(公告)日:1999-06-29

    申请号:US27803

    申请日:1998-02-23

    Abstract: In a gasoline internal combustion engine with direct fuel injection a spark plug with a center electrode is mounted in the cylinder top so as to project into the combustion chamber. A mass electrode is disposed on the piston so as to project upwardly into the combustion chamber and is movable with the piston toward and from the spark plug center electrode. An ignition system is provided for timely generating a spark between the spark plug electrode and the movable mass electrode for igniting a fuel/air mixture in the combustion chamber. A fuel injector is mounted in the cylinder top and adapted to provide a cone-like fuel beam with an envelope disposed between the spark plug electrode and the mass electrode such that a spark generated between the two electrodes extends through the fuel injection beam envelope.

    Abstract translation: 在具有直接燃料喷射的汽油内燃机中,具有中心电极的火花塞安装在气缸顶部以便突出到燃烧室中。 质量电极设置在活塞上,以向上突出到燃烧室中,并且可随活塞朝向和离开火花塞中心电极移动。 提供点火系统,用于在火花塞电极和可移动​​质量电极之间及时产生火花,用于点燃燃烧室中的燃料/空气混合物。 燃料喷射器安装在气缸顶部中并且适于提供具有设置在火花塞电极和质量电极之间的封套的锥形燃料束,使得在两个电极之间产生的火花延伸穿过燃料喷射光束外壳。

    Circuit layout for ion current measurement
    5.
    发明授权
    Circuit layout for ion current measurement 失效
    离子电流测量电路布局

    公开(公告)号:US5814994A

    公开(公告)日:1998-09-29

    申请号:US675640

    申请日:1996-07-03

    Abstract: With a transistor ignition system, in order to generate an ion current measurement signal at the secondary end, the ignition transistor, following an ignition triggering impulse, will be driven such that a saw-toothed collector current results as a primary current, and whose rate of increase is selected such that the quasi-stationary direct voltage generated hereby at the secondary end will not trigger any ignition process. The advantage is that for generating such a measurement signal as well as for its evaluation only a few components are required.

    Abstract translation: 利用晶体管点火系统,为了在次级端产生离子电流测量信号,点火触发脉冲之后的点火晶体管将被驱动,使得锯齿形集电极电流作为初级电流,其速率 的选择使得在二次端产生的准稳态直流电压不会触发任何点火过程。 优点在于,为了产生这样的测量信号以及对于其评估,仅需要几个组件。

    Process for operating an Otto internal-combustion engine having an
internal mixture formation
    7.
    发明授权
    Process for operating an Otto internal-combustion engine having an internal mixture formation 失效
    用于操作具有内部混合物形成的奥托内燃机的方法

    公开(公告)号:US5941208A

    公开(公告)日:1999-08-24

    申请号:US964029

    申请日:1997-11-04

    Abstract: Otto internal-combustion engines having one injector respectively per cylinder for the internal mixture formation can be operated at full load or high partial load by fuel injection in the suction stroke of the piston and, at medium or low partial load, with a compression stroke injection. The compression stroke injection, which is advantageous in this load range, because of low average combustion space temperatures and the tendency to form deposits in the combustion space because of residues of liquid fuel and the resulting impaired operating conditions, can partially be carried out only to a limited degree. In order to provide a process for operating an Otto internal-combustion engine of the above-mentioned type which permits an arbitrary operating period in the medium or low load range, it is provided that, in the operation of the internal-combustion engine with a compression stroke injection, as a function of the time or at least of an operating parameter, independently of the momentary load requirement, a change-over takes place to a suction stroke injection while simultaneously reducing the intake air quantity and, after the conclusion of a certain free-burning interval, a switching-back takes place into the operating mode with the compression stroke injection.

    Abstract translation: 具有分别用于内部混合物形成的每个气缸的一个喷射器的奥托内燃机可以在全负荷或高部分负荷下通过在活塞的吸入冲程中的燃料喷射以及在中等或低部分负荷下用压缩冲程喷射 。 由于平均燃烧空间温度低以及由于液体燃料的残留而导致在燃烧空间中形成沉积物的趋势以及由此导致的受损操作条件,在该负载范围中有利的压缩冲程喷射可以仅部分地被执行到 有限度 为了提供一种用于操作上述类型的奥托内燃机的方法,其允许在中等或低负载范围内的任意运行周期,条件是在内燃机的操作中具有 压缩冲程喷射,作为时间的函数或至少是操作参数,独立于瞬时负载要求,在吸入冲程喷射的同时进行转换,同时减少进气量,并且在结束后 某些自由燃烧的间隔,通过压缩冲程喷射进入操作模式。

    Method for detecting knocking combustion in the operation of an internal combustion engine
    8.
    发明授权
    Method for detecting knocking combustion in the operation of an internal combustion engine 有权
    用于检测内燃机操作中的爆震燃烧的方法

    公开(公告)号:US06655191B2

    公开(公告)日:2003-12-02

    申请号:US09892415

    申请日:2001-06-27

    CPC classification number: F02P17/12 F02P2017/128 G01L23/22 G01L23/225

    Abstract: In a method for detecting knocking combustion during the operation of an internal combustion engine with a device for measuring the ionic current, the raw ionic current signal or the evaluated value of the knocking intensity are normalized. This enables the value of the knocking intensity to be reliably compared with a threshold value. The normalization avoids the falsifying influence of large intensity fluctuations of the raw ionic current signal from one combustion cycle to the next without any relation to the true knocking intensity.

    Abstract translation: 在利用用于测量离子电流的装置的内燃机操作期间检测爆震燃烧的方法中,原始离子电流信号或爆震强度的评估值被归一化。 这使得可以将爆震强度的值可靠地与阈值进行比较。 归一化避免了从一个燃烧循环到下一个燃烧循环的原始离子电流信号的大强度波动的伪造影响,与真实爆震强度无任何关系。

    Process and apparatus for recognizing ignition failures in an internal-combustion engine having two spark plugs per cylinder
    9.
    发明授权
    Process and apparatus for recognizing ignition failures in an internal-combustion engine having two spark plugs per cylinder 有权
    在具有每个气缸的两个火花塞的内燃机中识别点火失效的方法和装置

    公开(公告)号:US06211680B1

    公开(公告)日:2001-04-03

    申请号:US09133427

    申请日:1998-08-13

    CPC classification number: G01M15/11 F02P17/12 G01M15/042

    Abstract: A process for recognizing ignition failures in an internal-combustion engine which has two spark plugs per cylinder, based on a measurement of the ionic current at the spark plugs. In this process, the ionic current signals of the two spark plugs are each integrated using an assigned integrator over an entire combustion cycle and the integrator values are compared with one another. Since, in the case of a defective spark plug, an ionic current signal will occur only some time after the ignition (specifically after the arrival of the flame from the ignited spark plug), its integration value is significantly lower than that of the intact spark plug. From this information, the correct operation of the spark plugs is determined.

    Abstract translation: 基于火花塞上的离子电流的测量,在每个气缸中具有两个火花塞的内燃机中识别点火失效的方法。 在该过程中,两个火花塞的离子电流信号在整个燃烧循环中使用分配的积分器进行集成,并且将积分器值彼此进行比较。 由于在火花塞有故障的情况下,离子电流信号将仅在点火之后的一段时间内发生(特别是在点火火花塞火焰到来之后),其积分值显着低于完整火花 插头。 根据该信息,确定火花塞的正确操作。

    Method of controlling an adjustable operating parameter of an internal
combustion engine with direct fuel injection
    10.
    发明授权
    Method of controlling an adjustable operating parameter of an internal combustion engine with direct fuel injection 失效
    用直接燃料喷射控制内燃机的可调节运行参数的方法

    公开(公告)号:US5904127A

    公开(公告)日:1999-05-18

    申请号:US950956

    申请日:1997-10-15

    Abstract: In a method of controlling adjustable operating parameters of an internal combustion engine with direct fuel injection which includes at least one cylinder having a piston delimiting a combustion chamber, a fuel injector and a spark plug, wherein air supplied to the combustion chamber through an air intake passage forms with the fuel injected by the fuel injector a fuel/air mixture which is compressed and produces a plasma cloud which is then ignited by a spark generated between the electrodes of the spark plug, the ionization degree of the plasma cloud is measured and an ionization signal is formed and supplied to an electronic control unit where it is utilized to control at least one operating parameter of the internal combustion engine.

    Abstract translation: 一种控制具有直接燃料喷射的内燃机的可调节运行参数的方法,该燃料喷射包括至少一个气缸,其具有限定燃烧室的活塞,燃料喷射器和火花塞,其中通过进气口供应到燃烧室的空气 通过燃料喷射器喷射的燃料,燃料/空气混合物被压缩并产生等离子体云,然后等离子体云被在火花塞的电极之间产生的火花点燃,测量等离子体云的电离度,并且 形成电离信号并将其提供给电子控制单元,在该控制单元中用于控制内燃机的至少一个操作参数。

Patent Agency Ranking