Method and Device for Operating an Internal Combustion Engine
    11.
    发明申请
    Method and Device for Operating an Internal Combustion Engine 有权
    操作内燃机的方法和装置

    公开(公告)号:US20090038595A1

    公开(公告)日:2009-02-12

    申请号:US12280935

    申请日:2007-01-31

    IPC分类号: F02D41/00 G01M15/10

    摘要: An internal combustion engine has at least one cylinder and an exhaust gas tract, in which an exhaust gas sensor, that can be heated in a controlled manner, is arranged. An exhaust gas temperature of an exhaust gas flowing in the exhaust gas tract is determined as a function of the heating power (P_HEAT) supplied to the exhaust gas sensor. An estimated value of the exhaust gas temperature is determined as a function of a physical model of the combustion of the air/fuel mixture and of the exhaust gas tract as a function of at least one operating variable of the internal combustion engine, but independent of the heating power supplied to the exhaust gas sensor. Model parameters of the physical model are adapted as a function of a deviation of the estimated value and of the exhaust gas temperature determined by the supplied heating power.

    摘要翻译: 一种内燃机具有至少一个气缸和排气道,排气传感器可以被控制地加热。 根据供给到废气传感器的加热功率(P_HEAT),确定排气管道中排出的废气的废气温度。 废气温度的估计值根据作为内燃机的至少一个操作变量的函数的空气/燃料混合物和废气道的燃烧的物理模型的函数来确定,但是与 提供给排气传感器的加热功率。 物理模型的模型参数被调整为由所提供的加热功率确定的估计值和排气温度的偏差的函数。

    Method and Device for Diagnosis of an Exhaust Gas Cleaning System
    13.
    发明申请
    Method and Device for Diagnosis of an Exhaust Gas Cleaning System 有权
    排气净化系统诊断方法和装置

    公开(公告)号:US20080105031A1

    公开(公告)日:2008-05-08

    申请号:US11666003

    申请日:2006-07-20

    IPC分类号: G01N7/02

    摘要: The invention is distinguished by a method and a corresponding device for diagnosis of an individual catalytic converter of an exhaust gas purification unit assigned to an internal combustion engine in the Y configuration, despite the lack of exhaust gas probe between the individual catalytic converter and a main catalytic converter. The diagnosis proceeds on the basis of signals from the exhaust gas probes belonging to the exhaust gas purification unit. On the basis of these signals, the oxygen storage capacity of the individual catalytic converter is determined despite the lack of exhaust gas probe between the individual catalytic converter and the main catalytic converter.

    摘要翻译: 本发明的特征在于用于诊断分配给Y型结构的内燃机的排气净化单元的单个催化转化器的方法和相应装置,尽管在单个催化转化器和主催化转化器之间缺乏排气探针 催化转化器。 基于属于排气净化单元的废气探测器的信号进行诊断。 基于这些信号,尽管各个催化转化器和主催化转化器之间缺乏排气探针,但确定了各个催化转化器的储氧能力。

    Method and Device for Determining an Oxygen Storage Capacity of a Catalytic Converter of an Internal Combustion Engine and Method and Device for Determining a Dynamic Time Duration for Exhaust Probes of an Internal Combustion Engine
    14.
    发明申请
    Method and Device for Determining an Oxygen Storage Capacity of a Catalytic Converter of an Internal Combustion Engine and Method and Device for Determining a Dynamic Time Duration for Exhaust Probes of an Internal Combustion Engine 有权
    用于确定内燃机的催化转化器的储氧能力的方法和装置以及用于确定内燃机排气探测器的动态时间持续时间的方法和装置

    公开(公告)号:US20110138876A1

    公开(公告)日:2011-06-16

    申请号:US13031334

    申请日:2011-02-21

    申请人: Tino Arlt Gerd Rõsel

    发明人: Tino Arlt Gerd Rõsel

    IPC分类号: G01N7/00

    摘要: An exhaust as catalytic converter is laden with oxygen until it is saturated at least upstream of an exhaust as probe. A predefined first rich air/fuel ration is set in a combustion chamber of a cylinder. A first oxygen storage capacity value is determined as a function of the measurement signal of an exhaust as probe and the predefined first rich air/fuel ratio. The exhaust as catalytic converter is laden with oxygen until it is saturated. A predefined second rich air/fuel ration is set in the combustion chamber of the cylinder. A second oxygen storage capacity value is determined as a function of the measurement signal of the exhaust as probe and the predefined second rich air/fuel ration. A corrected oxygen storage capacity value is determined as a function of the first and second oxygen storage capacity values.

    摘要翻译: 作为催化转化器的排气管充满氧气,直到其至少在排气的上游饱和为探针。 在气缸的燃烧室中设置预定义的第一浓空气/燃料比。 作为作为探针的排气的测量信号和预先确定的第一富空燃比确定第一储氧容量值。 作为催化转化器的排气装满氧气直至饱和。 预定义的第二浓空气/燃料比设置在气缸的燃烧室中。 作为作为探测器的排气的测量信号和预定义的第二浓空气/燃料比,确定第二储氧容量值。 作为第一和第二储氧容量值的函数确定校正的储氧容量值。

    Method and Device for Determining an Oxygen Storage Capacity of a Catalytic Converter of an Internal Combustion Engine and Method and Device for Determining a Dynamic Time Duration for Exhaust Probes of an Internal Combustion Engine
    15.
    发明申请
    Method and Device for Determining an Oxygen Storage Capacity of a Catalytic Converter of an Internal Combustion Engine and Method and Device for Determining a Dynamic Time Duration for Exhaust Probes of an Internal Combustion Engine 有权
    用于确定内燃机的催化转化器的储氧能力的方法和装置以及用于确定内燃机排气探测器的动态时间持续时间的方法和装置

    公开(公告)号:US20090126344A1

    公开(公告)日:2009-05-21

    申请号:US11921380

    申请日:2006-05-10

    申请人: Tino Arlt Rosel Gerd

    发明人: Tino Arlt Rosel Gerd

    IPC分类号: F01N11/00

    摘要: An exhaust gas catalytic converter is laden with oxygen until it is saturated at least upstream of an exhaust gas probe. A predefined first rich air/fuel ration is set in a combustion chamber of a cylinder. A first oxygen storage capacity value is determined as a function of the measurement signal of an exhaust gas probe and the predefined first rich air/fuel ratio. The exhaust gas catalytic converter is laden with oxygen until it is saturated. A predefined second rich air/fuel ration is set in the combustion chamber of the cylinder. A second oxygen storage capacity value is determined as a function of the measurement signal of the exhaust gas probe and the predefined second rich air/fuel ration. A corrected oxygen storage capacity value is determined as a function of the first and second oxygen storage capacity values.

    摘要翻译: 废气催化转化器充满氧气,直到其至少在排气探针的上游饱和。 在气缸的燃烧室中设置预定义的第一浓空气/燃料比。 根据排气探头的测量信号和预先确定的第一浓空气/燃料比确定第一储氧容量值。 废气催化转化器充满氧气直至饱和。 预定义的第二浓空气/燃料比设置在气缸的燃烧室中。 根据排气探针的测量信号和预定义的第二浓空气/燃料比来确定第二储氧容量值。 作为第一和第二储氧容量值的函数确定校正的储氧容量值。

    Method for adapting the detection of a measuring signal of a waste gas probe
    17.
    发明申请
    Method for adapting the detection of a measuring signal of a waste gas probe 有权
    适应废气探头测量信号检测的方法

    公开(公告)号:US20070119436A1

    公开(公告)日:2007-05-31

    申请号:US10587630

    申请日:2004-11-23

    摘要: The invention relates to a waste gas probe which is disposed in an internal combustion engine, comprising a plurality of cylinders and injection valves associated with the cylinders, in order to measure fuel. The waste gas probe is arranged in a waste gas tract and the measuring signal thereof is characteristic for the air/fuel ratio in the respective cylinder. The measuring signal is detected in relation to a reference position of the piston of the respective cylinder at a predefined crankshaft angle and associated with a respective cylinder. A manipulated variable which is used to influence the air/fuel ration in the respective cylinder according to the measuring signal detected for the respective cylinder is produced by means of a controller. The predefined crankshaft angle is adapted according to an instability criterion of the controller.

    摘要翻译: 本发明涉及一种设置在内燃机中的废气探头,其包括多个气缸和与气缸相连的喷射阀,以便测量燃料。 废气探头设置在废气管道中,其测量信号是相应气缸中的空气/燃料比的特征。 相对于相应气缸的活塞的参考位置以预定的曲轴角度检测测量信号并与相应气缸相关联。 通过控制器产生用于根据针对各个气缸检测的测量信号来影响各气缸中的空气/燃料比的操纵变量。 预定义的曲轴角度根据控制器的不稳定性标准进行调整。

    Method for cleaning a particulate filter
    18.
    发明申请
    Method for cleaning a particulate filter 审中-公开
    清洁微粒过滤器的方法

    公开(公告)号:US20050252199A1

    公开(公告)日:2005-11-17

    申请号:US10522140

    申请日:2003-07-10

    摘要: The invention relates to a method for regenerating a particulate filter, which is mounted inside the exhaust gas channel of an internal combustion engine, filters particles out of the exhaust gas flowing inside of the exhaust gas channel, and which is intermittently regenerated during operation. According to the method, the actual air mass flow (Lexp) supplied to the internal combustion engine is measured, and the air requirement (Lcalc) of the internal combustion engine is determined. A regeneration of the particulate filter is initiated based on a difference (ΔL) between the air mass flow and the air requirement.

    摘要翻译: 本发明涉及一种安装在内燃机的排气通道内的颗粒过滤器的再生方法,该过滤器将颗粒从排气通道内排出的排气中过滤,并在运行过程中间歇再生。 根据该方法,测量供给到内燃机的实际空气质量流量(Lexp),并确定内燃机的空气需求量(Lcalc)。 基于空气质量流量和空气需求之间的差(DeltaL)启动颗粒过滤器的再生。

    METHOD AND DEVICE FOR THE DIAGNOSIS OF AN NOX SENSOR FOR AN INTERNAL COMBUSTION ENGINE
    20.
    发明申请
    METHOD AND DEVICE FOR THE DIAGNOSIS OF AN NOX SENSOR FOR AN INTERNAL COMBUSTION ENGINE 有权
    用于内燃机NOX传感器诊断的方法和装置

    公开(公告)号:US20110077818A1

    公开(公告)日:2011-03-31

    申请号:US12992331

    申请日:2009-04-16

    IPC分类号: F01N11/00

    摘要: IN a method and a device for the diagnosis of an NOx sensor (54) for an internal combustion engine, during a homogenous operation of the internal combustion engine, a base diagnostic value (NOx_DIAG_BAS) of the NOx sensor (54) is determined as a function of a reference value (I_REF) of a measuring signal of the NOx sensor (54) determined in a new state of the NOx sensor (54) and a current value (I_AV) of the measuring signal of the NOx sensor (54). A time-dependent measuring value sequence (O2_EG_T) of the oxygen content of the exhaust gas in the exhaust gas system (14) is determined by the exhaust gas probe (53). Depending on the measuring value sequence (O2_EG_T) of the oxygen content of the exhaust gas, and the base diagnostic value (NOx_DIAG_BAS) of the NOx sensor (54), a corrected diagnostic value (NOx_DIAG_COR) is determined for the NOx sensor (54).

    摘要翻译: 在用于内燃机的NOx传感器(54)的诊断的方法和装置中,在内燃机的均匀运转中,将NOx传感器(54)的基准诊断值(NOx_DIAG_BAS)确定为 在NOx传感器(54)的新状态下确定的NOx传感器(54)的测量信号的参考值(I_REF)和NOx传感器(54)的测量信号的当前值(I_AV)的函数。 排气系统(14)中的排气的氧含量的时间依赖性测量值序列(O2_EG_T)由排气探针(53)确定。 根据排气的氧含量的测量值序列(O2_EG_T)和NOx传感器(54)的基础诊断值(NOx_DIAG_BAS),确定NOx传感器(54)的校正诊断值(NOx_DIAG_COR) 。