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6 条记录 (耗时 0.016 秒)

    Circuit configuration for generating a virtual ground
    1.
    发明授权
    Circuit configuration for generating a virtual ground 有权
    用于产生虚拟地面的电路配置

    公开(公告)号：US06558520B2

    公开(公告)日：2003-05-06

    申请号：US09781632

    申请日：2001-02-12

    申请人： Markus Amtmann ,  Stephan Bolz ,  Jürgen Rössler

    发明人： Markus Amtmann ,  Stephan Bolz ,  Jürgen Rössler

    IPC分类号： G01N27407

    CPC分类号： G01N27/4065 ,  F02D41/1479 ,  G01N27/4175

    摘要： A circuit configuration for generating a virtual ground includes a micro-controller, an analog circuit and a read-only memory. A pulse-width modulated signal, which is output by the micro-controller, is converted, by using the analog circuit, into the virtual ground as a common reference potential of an exhaust probe which operates according to the principle of the galvanic oxygen concentration cell with a solid electrolyte. The actual value of the virtual ground is read into the micro-controller through the use of an A/D converter and is compared with a predefined setpoint value. The potential value of the virtual ground is then controlled on the basis of the difference value. An exhaust probe configuration is also provided.

    摘要翻译： 用于产生虚拟接地的电路配置包括微控制器，模拟电路和只读存储器。 由微控制器输出的脉冲宽度调制信号通过使用模拟电路被转换为虚拟接地，作为根据电流氧浓度单元的原理操作的排气探针的公共参考电位 用固体电解质。 通过使用A / D转换器将虚拟接地的实际值读入微控制器，并与预定义的设定值进行比较。 然后基于差值来控制虚拟地的电位值。 还提供了排气探针配置。

    Circuit configuration for controlling a pump current of an exhaust probe in a motor vehicle
    2.
    发明授权
    Circuit configuration for controlling a pump current of an exhaust probe in a motor vehicle 有权
    用于控制机动车辆中的排气探针的泵电流的电路配置

    公开(公告)号：US06447660B2

    公开(公告)日：2002-09-10

    申请号：US09781613

    申请日：2001-02-12

    申请人： Markus Amtmann ,  Stephan Bolz ,  Jürgen Rössler

    发明人： Markus Amtmann ,  Stephan Bolz ,  Jürgen Rössler

    IPC分类号： G01N27407

    CPC分类号： G01N27/4065

    摘要： A circuit configuration for controlling a pump current includes a microcontroller, an analog circuit and a read-only memory. A pulse-width modulated signal, which is output by the micro-controller, is converted, by using the analog circuit, into the pump current for a pump cell of an exhaust probe which operates according to the principle of the galvanic oxygen concentration cell with a solid electrolyte. A pump current actual value is determined from a voltage drop across a measuring resistor, and a pump current setpoint value is determined from a voltage difference between an actual value of a Nernst voltage in the corresponding measuring cell and a predefined setpoint value. An exhaust probe configuration is also provided.

    摘要翻译： 用于控制泵浦电流的电路配置包括微控制器，模拟电路和只读存储器。 由微控制器输出的脉冲宽度调制信号通过使用模拟电路转换为根据电流氧浓度电池原理工作的排气探针的泵浦电池的泵浦电流， 固体电解质。 泵电流实际值由测量电阻器上的电压降确定，泵电流设定值由相应测量单元中可计算电压的实际值与预定义的设定值之间的电压差确定。 还提供了排气探针配置。

    Method and device for calibrating a probe system
    3.
    发明授权
    Method and device for calibrating a probe system 有权
    用于校准探针系统的方法和装置

    公开(公告)号：US06347277B2

    公开(公告)日：2002-02-12

    申请号：US09781673

    申请日：2001-02-12

    申请人： Markus Amtmann ,  Stephan Bolz ,  Jürgen Rössler

    发明人： Markus Amtmann ,  Stephan Bolz ,  Jürgen Rössler

    IPC分类号： G01N27419

    CPC分类号： G01N27/4175

    摘要： A control circuit of an exhaust probe has a microcontroller and an analog circuitry. Measured values which are recorded in a test chamber under predefined test conditions are stored in characteristic maps in a programmable read-only memory. These values are then used as a reference for a subsequent recalibration of a probe system.

    摘要翻译： 排气探针的控制电路具有微控制器和模拟电路。 在预定测试条件下记录在测试室中的测量值存储在可编程只读存储器中的特性图中。 然后将这些值用作随后重新校准探针系统的参考。