Method for the diagnosis of a continuous-action lambda probe
    21.
    发明授权
    Method for the diagnosis of a continuous-action lambda probe 有权
    用于诊断连续作用的λ探针的方法

    公开(公告)号:US06287453B1

    公开(公告)日:2001-09-11

    申请号:US09408681

    申请日:1999-09-30

    IPC分类号: F02D4114

    摘要: Periodic forced stimulations are asserted on setpoint values for a lambda control and a system response of a lambda control loop is simulated by a model that includes a sensor delay time as the model parameter. Amplitude gains of the model and the system are compared with each other and adapted according to the result of the comparison of the model parameters. If the adaptation value lies above a threshold, a lambda probe is classified as defective.

    摘要翻译: 定期强制刺激在λ控制的设定值上被断言,并且通过包括传感器延迟时间作为模型参数的模型来模拟λ控制环路的系统响应。 将模型和系统的幅度增益相互比较,并根据模型参数比较的结果进行调整。 如果适应值位于阈值之上,则λ探针被分类为有缺陷的。

    Ascertaining the ballistic trajectory of an electromagnetically driven armature of a coil actuator
    22.
    发明授权
    Ascertaining the ballistic trajectory of an electromagnetically driven armature of a coil actuator 有权
    确定线圈致动器的电磁驱动电枢的弹道轨迹

    公开(公告)号:US09448260B2

    公开(公告)日:2016-09-20

    申请号:US13877033

    申请日:2011-09-28

    申请人: Gerd Rösel

    发明人: Gerd Rösel

    IPC分类号: G01R19/00 F02D41/20 F02M45/04

    摘要: A method for determining the movement time curve of an electromagnetically driven armature of an actuator that has a coil may include: (a) applying to the coil a control signal dimensioned such that the armature undergoes only a partial deviation from the armature starting position without reaching an end position defined by a stop, and reaches the armature starting position again after reaching a turnaround position, wherein the deviation of the armature over time is described at least approximately by a section of a parabola at least between the turnaround position and the starting position, (b) determining the time at which the armature reaches the armature starting position again, (c) determining the speed with which the armature reaches the armature starting position again, and (d) ascertaining the movement time curve of the armature using a mathematical equation that describes the parabola based on the detected time and the detected speed.

    摘要翻译: 用于确定具有线圈的致动器的电磁驱动电枢的运动时间曲线的方法可以包括:(a)向线圈施加一个控制信号,该控制信号的尺寸设定成使得电枢仅经历与电枢起始位置的部分偏差而不到达 由止挡限定的终止位置,并且在到达转向位置之后再次到达电枢起始位置,其中电枢随时间的偏差至少近似地至少在转向位置和起始位置之间被抛物线的截面描述 (b)确定电枢再次到达电枢起始位置的时间,(c)确定电枢再次到达电枢起始位置的速度,以及(d)使用数学方法确定电枢的移动时间曲线 基于检测到的时间和检测到的速度来描述抛物线的方程式。

    Modified electrical actuation of an actuator for determining the time at which an armature strikes a stop
    23.
    发明授权
    Modified electrical actuation of an actuator for determining the time at which an armature strikes a stop 有权
    用于确定电枢撞击停止的时间的致动器的改进的电致动

    公开(公告)号:US09412508B2

    公开(公告)日:2016-08-09

    申请号:US14005794

    申请日:2012-03-13

    IPC分类号: H01F7/18 F02D41/20

    摘要: A method is disclosed for operating an actuator having a coil and a displaceably mounted armature driven by a magnetic field generated by the coil, in a measurement operating mode for ascertaining a time at which the armature reaches its stop position after activation of the actuator. The method includes applying to the coil an actuation voltage signal dimensioned such that the expected armature stop time falls in a time window in which a temporally constant voltage is applied to the coil, detecting an intensity profile of the current flowing through the coil within the time window, and determining the armature stop time, based on an evaluation of the detected current intensity profile. A method for operating such an actuator is also disclosed, wherein information about the stop time is obtained in a measurement operating mode and used in a series operating mode for optimized actuation of the actuator.

    摘要翻译: 公开了一种用于操作具有线圈和由线圈产生的磁场驱动的可移动安装的电枢的致动器的方法,该测量操作模式用于确定在致动器致动之后电枢到达其停止位置的时间。 该方法包括向线圈施加致动电压信号,该致动电压信号的尺寸设定为使得预期的电枢停止时间落在时间窗口中,其中时间上恒定的电压施加到线圈,检测在时间内流过线圈的电流的强度分布 窗口,并且基于检测到的当前强度分布的评估来确定衔铁停止时间。 还公开了一种用于操作这种致动器的方法,其中关于停止时间的信息在测量操作模式中获得并且以串联操作模式被使用以优化致动器的致动。

    Determining the Closing Point in Time of an Injection Valve on the Basis of an Analysis of the Actuation Voltage Using an Adapted Reference Voltage Signal
    24.
    发明申请
    Determining the Closing Point in Time of an Injection Valve on the Basis of an Analysis of the Actuation Voltage Using an Adapted Reference Voltage Signal 有权
    基于使用适应的参考电压信号分析驱动电压来确定注射阀的时间点的关闭点

    公开(公告)号:US20130073188A1

    公开(公告)日:2013-03-21

    申请号:US13700798

    申请日:2011-05-05

    申请人: Gerd Rösel

    发明人: Gerd Rösel

    IPC分类号: F02D41/30

    摘要: A method for determining a closing time of a valve having a coil drive may include switching off a current flow through a coil of the coil drive so that the coil is depowered, measuring a time curve of a voltage induced in the non-powered coil, wherein the induced voltage is generated at least partially by a motion of the armature relative to the coil, evaluating the measured time curve of the voltage induced in the coil, wherein the evaluation comprises comparing the measured time curve of the voltage induced in the depowered coil to a reference voltage curve stored in an engine controller, and determining the closing time based on the evaluated time curve. The reference voltage curve is thereby adapted to current operating conditions of the valve. A corresponding device and computer program for determining the closing time of a valve comprising a coil drive are also disclosed.

    摘要翻译: 用于确定具有线圈驱动器的阀的关闭时间的方法可以包括切断通过线圈驱动器的线圈的电流,使得线圈被去电,测量在非供电线圈中感应的电压的时间曲线, 其中所述感应电压至少部分地由所述电枢相对于所述线圈的运动产生,评估所测量的在所述线圈中感应的电压的时间曲线,其中所述评估包括比较所测量的在所述线圈中感应的电压的时间曲线 到存储在发动机控制器中的参考电压曲线,并且基于所评估的时间曲线来确定关闭时间。 因此,参考电压曲线适应于阀的当前操作条件。 还公开了一种用于确定包括线圈驱动器的阀的关闭时间的相应装置和计算机程序。

    Method for correcting the output signal of a lambda probe
    25.
    发明授权
    Method for correcting the output signal of a lambda probe 有权
    用于校正λ探测器的输出信号的方法

    公开(公告)号:US08359899B2

    公开(公告)日:2013-01-29

    申请号:US12282557

    申请日:2007-02-02

    摘要: In a method for correcting the output signal of a broadband lambda probe of an internal combustion engine, the influence of the air humidity on the lambda value determined by the broadband lambda probe is detected and is deducted by means of a compensation model. For this purpose, a measured air humidity is incorporated in the calibration of the broadband lambda probe during an overrun shut-off phase of the internal combustion engine.

    摘要翻译: 在用于校正内燃机的宽带λ探测器的输出信号的方法中,检测由宽带λ探针确定的空气湿度对λ值的影响,并通过补偿模型来扣除。 为此,在内燃机超速关闭阶段,将宽带探测器的校准中包含测量的空气湿度。

    Method for operating an exhaust-gas catalytic converter of an internal combustion engine
    26.
    发明授权
    Method for operating an exhaust-gas catalytic converter of an internal combustion engine 有权
    用于操作内燃机的废气催化转化器的方法

    公开(公告)号:US08312707B2

    公开(公告)日:2012-11-20

    申请号:US12161264

    申请日:2006-12-05

    IPC分类号: F01N3/00 F01N3/10

    摘要: Method and apparatus for operating an exhaust-gas catalytic converter (21) of an internal combustion engine having at least one cylinder (Z1-Z4) and one exhaust-gas section (4), in which the exhaust-gas catalytic converter (21) and a lambda probe (43) downstream of the exhaust-gas catalytic converter (21) are arranged. A characteristic value which is representative for the NOx concentration is determined as a function of a measured signal (VLS DOWN) of the lambda probe (43).

    摘要翻译: 用于操作具有至少一个气缸(Z1-Z4)和一个废气部分(4)的内燃机的排气 - 催化转化器(21)的方法和装置,其中排气 - 催化转化器(21) 和排气催化转化器(21)下游的λ探针(43)。 根据λ探针(43)的测量信号(VLS DOWN)确定代表NOx浓度的特征值。

    Method and device for estimating an emission of at least one exhaust gas component
    28.
    发明授权
    Method and device for estimating an emission of at least one exhaust gas component 有权
    用于估计至少一个废气组分的排放的方法和装置

    公开(公告)号:US08171780B2

    公开(公告)日:2012-05-08

    申请号:US12538236

    申请日:2009-08-10

    IPC分类号: G01M15/10

    摘要: An exhaust-gas sensor signal (vls_down) of an exhaust-gas sensor that is disposed in an exhaust gas train downstream of at least one first catalytic converter volume (V1) and upstream of at least one second catalytic converter volume (V2) is acquired. An estimated value of an intermediate emission for a position of the exhaust-gas sensor is determined in dependence upon the exhaust-gas sensor signal (vls_down). An estimated value of an emission downstream of the at least one second catalytic converter volume (V2) is determined in dependence upon the estimated value of the intermediate emission and in dependence upon at least one predefined correction characteristic (fac_cor_ufc) or at least one predefined correction characteristics map for correcting the estimated value of the intermediate emission with regard to an influence of the at least one second catalytic converter volume (V2) upon the emission of the at least one exhaust gas component.

    摘要翻译: 获取布置在至少一个第一催化转化器体积(V1)和至少一个第二催化转化器体积(V2)的上游的排气系列中的废气传感器的废气传感器信号(vls_down) 。 根据废气传感器信号(vls_down)确定废气传感器的位置的中间发射的估计值。 至少一个第二催化转化器体积(V2)的下游的排放的估计值根据中间发射的估计值并根据至少一个预定义的校正特性(fac_cor_ufc)或至少一个预定义的校正来确定 特征图,用于相对于至少一个第二催化转化器体积(V2)对所述至少一个废气组分的排放的影响来校正中间发射的估计值。

    METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE
    29.
    发明申请
    METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE 审中-公开
    用于操作内燃机的方法和装置

    公开(公告)号:US20110231079A1

    公开(公告)日:2011-09-22

    申请号:US13129469

    申请日:2009-11-06

    IPC分类号: F02D28/00 F02D41/30 F01N3/18

    摘要: According to a current operating state (BZ) of an internal combustion engine and/or a specified particle number emission limit (PE), a minimum hydrocarbon concentration (HCMK) of a combustion chamber exhaust gas of the internal combustion engine that is required to comply with the specified particle number emission limit is determined. An operation (B) of the internal combustion engine is specified to achieve a hydrocarbon concentration (HCK) of the combustion chamber exhaust gas that is at least as large as the determined minimum hydrocarbon concentration (HCMK).

    摘要翻译: 根据内燃机的当前运行状态(BZ)和/或指定的颗粒数排放限值(PE),内燃机的燃烧室排气的最小烃浓度(HCMK)必须符合 确定指定的颗粒数量排放限值。 指定内燃机的操作(B)以实现至少与所确定的最小烃浓度(HCMK)一样大的燃烧室排气的烃浓度(HCK)。

    Method for operating an internal combustion engine
    30.
    发明授权
    Method for operating an internal combustion engine 有权
    操作内燃机的方法

    公开(公告)号:US07996141B2

    公开(公告)日:2011-08-09

    申请号:US12235967

    申请日:2008-09-23

    IPC分类号: B60T7/12 F02B25/06

    摘要: In a method for operating an internal combustion engine with a crankcase breather venting into an intake tract, operating parameters of the internal combustion engine are measured 102. A mass flow of fuel from the crankcase into the intake tract is determined as a function of the operating parameters measured 103. The internal combustion engine is controlled 111 or monitored 108 as a function of the mass flow of fuel from the crankcase into the intake tract.

    摘要翻译: 在用于操作具有通向进气道的曲轴箱通气孔的内燃机的方法中,测量内燃机的操作参数。来自曲轴箱的燃料的质量流量作为操作的函数来确定 测量的参数103.作为燃料从曲轴箱进入进气道的质量流量的函数,控制内燃机111或监控108。