METHOD AND DEVICE FOR DIAGNOSING DEVIATIONS IN A SINGLE CYLINDER LAMBDA CONTROL
    5.
    发明申请
    METHOD AND DEVICE FOR DIAGNOSING DEVIATIONS IN A SINGLE CYLINDER LAMBDA CONTROL 有权
    用于诊断单缸液压马达控制中的偏差的方法和装置

    公开(公告)号:US20130199283A1

    公开(公告)日:2013-08-08

    申请号:US13514712

    申请日:2010-11-05

    IPC分类号: F02D41/14

    摘要: The invention relates to a method and device for diagnosing deviations in a single cylinder lambda control in an internal combustion engine having at least two cylinders and an exhaust gas sensor designed as a broadband lambda sensor, wherein a pump current is evaluated by means of a pump cell and said pump current is used at least temporarily for an individual cylinder lambda control. According to the invention, a pump voltage or a pump voltage change is determined via the pump cell in addition to the pump current and said value is transmitted to a diagnosis apparatus. Deviations in the single cylinder lambda control can thus be better diagnosed without additional material expense according to the invention, which provides advantages in particular in respect of tightened rulemaking in on-board diagnosis. A preferred application of the method is the use in internal combustion engines having multi-bank exhaust systems.

    摘要翻译: 本发明涉及一种用于诊断具有至少两个气缸的内燃机中的单气缸λ控制的偏差的方法和装置,以及设计为宽带λ传感器的废气传感器,其中泵电流通过泵 电池和所述泵电流至少临时用于单独的气缸λ控制。 根据本发明,泵电压或泵电压变化除了泵电流之外经由泵电池确定,并且所述值被传送到诊断装置。 因此,根据本发明,可以更好地诊断单缸λ控制中的偏差而不需要额外的材料费用,其特别地在车载诊断中的紧固规则制定方面提供了优点。 该方法的优选应用是在具有多排排气系统的内燃机中的应用。

    Method and device for diagnosing deviations in a single cylinder lambda control
    7.
    发明授权
    Method and device for diagnosing deviations in a single cylinder lambda control 有权
    用于诊断单缸lambda控制中的偏差的方法和装置

    公开(公告)号:US09188073B2

    公开(公告)日:2015-11-17

    申请号:US13514712

    申请日:2010-11-05

    IPC分类号: G01M15/04 F02D41/14 F02D41/00

    摘要: The invention relates to a method and device for diagnosing deviations in a single cylinder lambda control in an internal combustion engine having at least two cylinders and an exhaust gas sensor designed as a broadband lambda sensor, wherein a pump current is evaluated by means of a pump cell and the pump current is used at least temporarily for an individual cylinder lambda control. According to the invention, a pump voltage or a pump voltage change is determined via the pump cell in addition to the pump current and the value is transmitted to a diagnosis apparatus. Deviations in the single cylinder lambda control can thus be better diagnosed without additional material expense according to the invention, which provides advantages in particular in respect of tightened rulemaking in on-board diagnosis. A preferred application of the method is the use in internal combustion engines having multi-bank exhaust systems.

    摘要翻译: 本发明涉及一种用于诊断具有至少两个气缸的内燃机中的单气缸λ控制的偏差的方法和装置,以及设计为宽带λ传感器的废气传感器,其中泵电流通过泵 至少临时使用单个气缸λ控制的泵电流。 根据本发明,除了泵电流之外,还经由泵电池来确定泵电压或泵电压变化,并将该值传送到诊断装置。 因此,根据本发明,可以更好地诊断单缸λ控制中的偏差,而不需要额外的材料费用,其特别地在车载诊断中的紧固规则制定方面提供了优点。 该方法的优选应用是在具有多排排气系统的内燃机中的应用。

    Circuit Arrangement to Diagnose a Heating Resistor
    9.
    发明申请
    Circuit Arrangement to Diagnose a Heating Resistor 审中-公开
    诊断加热电阻的电路布置

    公开(公告)号:US20080197856A1

    公开(公告)日:2008-08-21

    申请号:US11630533

    申请日:2005-05-12

    IPC分类号: G01R31/302

    CPC分类号: G05D23/2401

    摘要: A circuit arrangement is proposed to diagnose a heating resistor, which is connected in series with a first switch, which connects the heating resistor to a power source for operation of the heating resistor with a heating current. Provision is made for means to operate the heating resistor with a diagnostic current during a cut-out time of the heating current and for means to acquire a diagnostic voltage as a measurement for the voltages occurring at the heating resistor as well as means to calculate the resistance of the heating resistor, which is taken as a basis for the diagnosis.

    摘要翻译: 提出了一种电路装置,用于诊断与第一开关串联连接的加热电阻器,该第一开关将加热电阻器连接到用于加热电阻器的加热电阻器的操作的电源。 规定了在加热电流的切断时间期间使用诊断电流来操作加热电阻器的手段,并且用于获取诊断电压作为在发热电阻器处发生的电压的测量的装置,以及计算 作为诊断的基础的加热电阻器的电阻。