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    • 9. 发明授权
    • Self-calibrating NOx sensor
    • 自校准NOx传感器
    • US08806913B2
    • 2014-08-19
    • US13039845
    • 2011-03-03
    • Yi Ding
    • Yi Ding
    • G01N27/416F01N11/00F02D41/00F02D41/06G01N27/407G01N27/417
    • G01N27/4175F02D41/064
    • A system for calibrating a response to an exhaust-stream NOx level in a motor vehicle is provided. The system comprises a NOx sensor that includes an electrode, a current from the electrode responsive to the exhaust-stream NOx level while a bias voltage is applied to the electrode. The system further comprises a controller configured to interrupt the bias voltage and to adjust a motor-vehicle response to the current based at least partly on an attained voltage of the electrode while the bias voltage is interrupted. Other embodiments provide a method of calibrating a NOx sensor response in terms of gain and offset parameters.
    • 提供了一种用于校准对机动车辆中的排气NOx水平的响应的系统。 该系统包括NOx传感器,其包括电极,来自电极的电流响应于排气流NOx水平,同时施加偏置电压到电极。 所述系统还包括控制器,所述控制器被配置为中断所述偏置电压并且在所述偏置电压被中断的同时至少部分地基于所述电极的获得电压来调整对所述电流的机动车辆响应。 其他实施例提供了一种根据增益和偏移参数来校准NOx传感器响应的方法。