Method for diagnosing a secondary-air system of an internal combustion engine
    2.
    发明授权
    Method for diagnosing a secondary-air system of an internal combustion engine 失效
    用于诊断内燃机的二次空气系统的方法

    公开(公告)号:US07594389B2

    公开(公告)日:2009-09-29

    申请号:US11029240

    申请日:2005-01-03

    IPC分类号: F01N3/00

    摘要: A method for diagnosing a secondary-air system of an internal combustion engine. The secondary-air system introduces secondary air into the exhaust-gas region of the internal combustion engine, the secondary air exothermically reacting together with combustible exhaust-gas components, and a thermoreactor being formed in the reaction region. The method provides for a measure of the secondary air to be ascertained from the thermal behavior in the thermoreactor and evaluated. The measure of the secondary air, which reflects, for example, the volumetric flow rate of the secondary air, the mass flow rate of the secondary air, or the amount or mass of secondary air flowing in a time interval, is compared to at least one threshold value. At least one diagnostic signal is then generated as a function of the comparison result.

    摘要翻译: 一种用于诊断内燃机的二次空气系统的方法。 二次空气系统将二次空气引入内燃机的排气区域,二次空气与可燃废气成分一起放热反应,在反应区域中形成热反应器。 该方法提供了根据热反应器的热行为确定的二次空气的量​​度并进行评估。 将例如二次空气的体积流量,二次空气的质量流量或者在一段时间间隔内流动的二次空气的量​​或质量的二次空气的量​​度至少与 一个阈值。 然后根据比较结果生成至少一个诊断信号。

    Method for diagnosing a secondary-air system of an internal combustion engine
    3.
    发明申请
    Method for diagnosing a secondary-air system of an internal combustion engine 失效
    用于诊断内燃机的二次空气系统的方法

    公开(公告)号:US20050150209A1

    公开(公告)日:2005-07-14

    申请号:US11029240

    申请日:2005-01-03

    摘要: A method for diagnosing a secondary-air system of an internal combustion engine. The secondary-air system introduces secondary air into the exhaust-gas region of the internal combustion engine, the secondary air exothermically reacting together with combustible exhaust-gas components, and a thermoreactor being formed in the reaction region. The method provides for a measure of the secondary air to be ascertained from the thermal behavior in the thermoreactor and evaluated. The measure of the secondary air, which reflects, for example, the volumetric flow rate of the secondary air, the mass flow rate of the secondary air, or the amount or mass of secondary air flowing in a time interval, is compared to at least one threshold value. At least one diagnostic signal is then generated as a function of the comparison result.

    摘要翻译: 一种用于诊断内燃机的二次空气系统的方法。 二次空气系统将二次空气引入内燃机的排气区域,二次空气与可燃废气成分一起放热反应,在反应区域中形成热反应器。 该方法提供了根据热反应器的热行为确定的二次空气的量​​度并进行评估。 将例如二次空气的体积流量,二次空气的质量流量或者在一段时间间隔内流动的二次空气的量​​或质量的二次空气的量​​度至少与 一个阈值。 然后根据比较结果生成至少一个诊断信号。

    Method and device for regulating power in ignition systems with a primary-side short-circuiting switch
    4.
    发明授权
    Method and device for regulating power in ignition systems with a primary-side short-circuiting switch 失效
    用一次侧短路开关调节点火系统功率的方法和装置

    公开(公告)号:US06298837B1

    公开(公告)日:2001-10-09

    申请号:US09582264

    申请日:2000-06-23

    IPC分类号: F02P3045

    CPC分类号: F02P9/002 F02P17/12

    摘要: A method and an arrangement for energy control on an ignition system for an internal combustion engine are presented having an ignition coil or an ignition transformer whose primary winding can be short circuited by means of a switch, called a short-circuit switch, the ignition coil forming the ignition voltage and having a primary winding and a secondary winding, and, an ion current can be measured with the secondary winding of the ignition coil by means of one or several spark plugs, the primary current in the short-circuit phase of the short-circuit switch is detected with a suitable means and is transmitted to the control unit, the measurement quantity is processed in the form of a function or filtering in the control unit after actuation of the short-circuit switch and an energy control via closure time or closure angle is built up with the obtained feature.

    摘要翻译: 提出了一种用于内燃机点火系统的能量控制的方法和装置,其具有点火线圈或点火变压器,其初级绕组可以通过称为短路开关的开关短路,点火线圈 形成点火电压并具有初级绕组和次级绕组,并且可以通过点火线圈的次级绕组借助于一个或多个火花塞来测量离子电流,在短路阶段中的初级电流 以适当的方式检测短路开关,并将其发送到控制单元,在短路开关动作后通过功能或滤波形式对测量量进行处理,并通过闭合时间进行能量控制 或闭合角度由所获得的特征构成。

    Method, device and computer program for operating an internal combustion engine, and internal combustion engine
    5.
    发明授权
    Method, device and computer program for operating an internal combustion engine, and internal combustion engine 失效
    用于操作内燃机和内燃机的方法,装置和计算机程序

    公开(公告)号:US06877487B2

    公开(公告)日:2005-04-12

    申请号:US10399539

    申请日:2001-10-17

    摘要: An internal combustion engine (10) is operated by a method wherein the fuel is supplied via a magnetic valve (28) having a coil (34). The injected fuel quantity is influenced by the duration of the drive of the magnetic valve (28). In the method, the temperature (evtmod) of a region (26) of the magnetic valve (28) is determined and the drive duration is corrected in dependence upon temperature. In order to make the correction still more precise, a temperature (evtmod) of the magnetic valve (28) is determined from at least one usually measured temperature (tans, tmot) and the drive duration (ti_tvu_w) is so corrected (tvsp_w) that the temperature dependency of the characteristics of the magnetic coil (34) of the magnetic valve (28) is considered. Furthermore, a model is suggested in which (starting from an operating temperature) the temperature trace is simulated after shut-off of the engine and/or for the restart of the engine by means of two factors for the warmup and cool down.

    摘要翻译: 内燃机(10)通过其中通过具有线圈(34)的电磁阀(28)供给燃料的方法操作。 喷射的燃料量受到电磁阀(28)的驱动持续时间的影响。 在该方法中,确定电磁阀(28)的区域(26)的温度(evtmod),并根据温度校正驱动持续时间。 为了使校正更精确,从至少一个通常测量的温度(tans,tmot)确定电动阀(28)的温度(evtmod),驱动持续时间(ti_tvu_w)被如此校正(tvsp_w),其中 考虑了电磁阀(28)的磁性线圈(34)的特性的温度依赖性。 此外,建议一个模型,其中(从工作温度开始),在关闭发动机之后和/或通过用于预热和冷却的两个因素来重新启动发动机的温度曲线。

    Method and device for positioning measuring displays for measuring ion currents
    6.
    发明授权
    Method and device for positioning measuring displays for measuring ion currents 失效
    用于定位用于测量离子电流的测量显示器的方法和装置

    公开(公告)号:US06813933B1

    公开(公告)日:2004-11-09

    申请号:US10129690

    申请日:2002-11-05

    IPC分类号: G01L2322

    CPC分类号: F02P17/12

    摘要: A method is presented for positioning a measurement window in time for analysis of ionic current signals, detected at internal combustion engines via the electrodes of a spark plug, for an ignition system having an ignition transformer, e.g., a.c. ignition or in a capacitor ignition system or inductive transistor ignition or inductive coil ignition or inductive coil ignition having a limited spark duration, the ignition systems being combined with a measurement device for an ionic current at the secondary winding on the ground side, each spark plug being allocated one ignition transformer, and the detection of the end of a spark and the opening of the measurement window for the ionic current signal taking place as a function of the end of the spark.

    Method and device for evaluating ionic current signals for assessing combustion processes
    8.
    发明授权
    Method and device for evaluating ionic current signals for assessing combustion processes 失效
    用于评估离子电流信号以评估燃烧过程的方法和装置

    公开(公告)号:US06483311B1

    公开(公告)日:2002-11-19

    申请号:US09701700

    申请日:2000-12-01

    IPC分类号: F02P1700

    CPC分类号: F02D35/021 F02D2200/1015

    摘要: A method and an arrangement for detecting combustion misfires in internal combustion engines are presented where a measured ionic current signal is subjected to a floating short-time integration and a feature is formed which corresponds to the maximum value of the floating short-time integrator within the entire measuring window. The window length of the short-time integrator is shorter than the total measuring window and is floatingly displaced over the measuring window.

    摘要翻译: 提出了一种用于检测内燃机中的燃烧失火的方法和装置,其中测量的离子电流信号经受浮动短时积分,并形成一个特征,其对应于浮动短时积分器内的最大值 整个测量窗口。 短时积分器的窗口长度短于总测量窗口,并在测量窗口上浮动。