To comply with increasingly stringent emission regulations, there is a high demand for A/F sensors with shorter light-off time and higher accuracy. Improvement of sensor accuracy requires reduction in sensor output shift induced by unburned hydrogen in the exhaust gas. The sensor output shift can effectively be reduced by placing a catalyst at the gas inlet of the sensing element. However, this involves the challenging technical task of developing a catalyst material with high durability in the sensor operating environment. By using a theoretical analysis technique, we studied a new catalyst material with superior catalytic performance and high durability, and have successfully improved A/F sensor accuracy, as reported in the following paper.


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    Title :

    Development of High Accuracy A/F Sensor with Catalyst Layer


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2010 World Congress & Exhibition ; 2010



    Publication date :

    2010-04-12




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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