Virtual sensing refers to the processing of desired physical data based on measured values. Virtual sensors can be applied not only to obtain physical quantities which cannot be measured or can only be measured at an unreasonable expense but also to reduce the number of physical sensors and thus lower costs. In the field of spark ignited internal combustion engines, the virtual sensing approach may be used to predict the cylinder pressure signal (or characteristic pressure values) based on the acceleration signal of a knock sensor.This paper presents a method for obtaining the cylinder pressure signal in the high-pressure phase of an internal combustion engine based on the measured acceleration signal of a knock sensor. The approach employs a partial differential equation to represent the physical transfer function between the measured signal and the desired pressure. A procedure to fit the modeling constants is described using the example of a large gas engine. The results indicate the great potential of this approach to be applied to cylinder balancing or further engine control tasks.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Development of a Virtual Sensor to Predict Cylinder Pressure Signal Based on a Knock Sensor Signal


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Kefalas, Achilles (Autor:in) / Wimmer, Andreas (Autor:in) / Pirker, Gerhard (Autor:in) / Posch, Stefan (Autor:in)

    Kongress:

    WCX SAE World Congress Experience ; 2022



    Erscheinungsdatum :

    29.03.2022




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Development of a Virtual Sensor to Predict Cylinder Pressure Signal Based on a Knock Sensor Signal

    Posch, Stefan / Pirker, Gerhard / Kefalas, Achilles et al. | British Library Conference Proceedings | 2022


    Development of a Virtual Sensor to Predict Cylinder Pressure Signal Based on a Knock Sensor Signal

    Posch, Stefan / Pirker, Gerhard / Kefalas, Achilles et al. | British Library Conference Proceedings | 2022


    Knock Sensor Based Virtual Cylinder Pressure Sensor

    Rugland, Christian / Stenlaas, Ola | SAE Technical Papers | 2019


    Knock Sensor Based Virtual Cylinder Pressure Sensor

    Rugland, Christian / Stenlaas, Ola | British Library Conference Proceedings | 2019


    Knock Sensor Based Virtual Combustion Sensor Signal Bias Sensitivity

    Rugland, Christian / Stenlaas, Ola | SAE Technical Papers | 2018