Method for evaluating the state of a soot sensor in a motor vehicle
    5.
    发明授权
    Method for evaluating the state of a soot sensor in a motor vehicle 有权
    用于评估机动车辆中的烟灰传感器的状态的方法

    公开(公告)号:US08635900B2

    公开(公告)日:2014-01-28

    申请号:US12905660

    申请日:2010-10-15

    IPC分类号: G01M15/10

    摘要: A method for performing on-board functional diagnostics on a soot sensor of a vehicle and/or for detecting further components in the soot in a motor vehicle having an internal combustion engine. The soot sensor is electrically connected to an evaluation circuit with is permanently installed in the motor vehicle. In order to specify a method for performing functional diagnostics on a soot sensor and/or for detecting further components in the soot, with which method it is possible to detect a faulty soot sensor and/or further components in the soot in a cost-effective way, the evaluation circuit measures the temperature coefficient of the soot sensor and detects the defectiveness of the soot sensor and/or the presence of further components in the soot on the basis of the temperature coefficient of the soot sensor.

    摘要翻译: 一种用于在车辆的烟灰传感器上执行车载功能诊断和/或用于检测具有内燃机的机动车辆中的烟灰中的其它部件的方法。 煤烟传感器电连接到永久安装在机动车辆中的评估电路。 为了指定用于在烟灰传感器上执行功能诊断和/或用于检测烟灰中的其它部件的方法,用哪种方法可以以成本有效的方式检测烟灰中的故障烟灰传感器和/或其它部件 评估电路基于烟灰传感器的温度系数来测量烟灰传感器的温度系数,并根据烟炱传感器的温度系数检测煤烟传感器的缺陷和/或烟灰中其它部件的存在。

    Method And Device For Operating A Particle Sensor
    6.
    发明申请
    Method And Device For Operating A Particle Sensor 有权
    用于操作粒子传感器的方法和装置

    公开(公告)号:US20120255340A1

    公开(公告)日:2012-10-11

    申请号:US13416874

    申请日:2012-03-09

    IPC分类号: G01N7/00

    CPC分类号: F02D41/1466 F01N2560/05

    摘要: A particle sensor arranged in an exhaust duct such that particles from the exhaust-gas flow accumulate on and/or between at least two sensor electrodes when a voltage greater than a limit voltage is applied between the two sensor electrodes and substantially no particles accumulate if the voltage is lower than the limit voltage. During a first time period, a first voltage greater than the limit voltage is applied between the sensor electrodes. During a second time period, a second voltage, lower than the limit voltage, is applied between the sensor electrodes, and/or the particle sensor is heated to a predefined temperature, such that substantially no particles accumulate on and/or between the at least two sensor electrodes. Following the second time period, a third voltage greater than the limit voltage is applied between the sensor electrodes.

    摘要翻译: 布置在排气管道中的颗粒传感器,使得当在两个传感器电极之间施加大于极限电压的电压时,来自排气流的颗粒在至少两个传感器电极之间和/或之间聚集,并且如果 电压低于极限电压。 在第一时间段期间,在传感器电极之间施加大于极限电压的第一电压。 在第二时间段期间,在传感器电极之间施加低于极限电压的第二电压,和/或将颗粒传感器加热到预定温度,使得基本上没有颗粒聚集在和/或至少 两个传感器电极。 在第二时间段之后,在传感器电极之间施加大于极限电压的第三电压。

    Method and device for operating a particle sensor
    7.
    发明授权
    Method and device for operating a particle sensor 有权
    用于操作颗粒传感器的方法和装置

    公开(公告)号:US09399967B2

    公开(公告)日:2016-07-26

    申请号:US13416874

    申请日:2012-03-09

    IPC分类号: F02D41/14 G01N27/16

    CPC分类号: F02D41/1466 F01N2560/05

    摘要: A particle sensor arranged in an exhaust duct such that particles from the exhaust-gas flow accumulate on and/or between at least two sensor electrodes when a voltage greater than a limit voltage is applied between the two sensor electrodes and substantially no particles accumulate if the voltage is lower than the limit voltage. During a first time period, a first voltage greater than the limit voltage is applied between the sensor electrodes. During a second time period, a second voltage, lower than the limit voltage, is applied between the sensor electrodes, and/or the particle sensor is heated to a predefined temperature, such that substantially no particles accumulate on and/or between the at least two sensor electrodes. Following the second time period, a third voltage greater than the limit voltage is applied between the sensor electrodes.

    摘要翻译: 布置在排气管道中的颗粒传感器,使得当在两个传感器电极之间施加大于极限电压的电压时,来自排气流的颗粒在至少两个传感器电极之间和/或之间聚集,并且如果 电压低于极限电压。 在第一时间段期间,在传感器电极之间施加大于极限电压的第一电压。 在第二时间段期间,在传感器电极之间施加低于极限电压的第二电压,和/或将颗粒传感器加热到预定温度,使得基本上没有颗粒聚集在和/或至少 两个传感器电极。 在第二时间段之后,在传感器电极之间施加大于极限电压的第三电压。