New vehicle control algorithms are needed to meet future emissions and fuel economy mandates that are quite likely to require a measurement of ambient specific humidity (SH). Current practice is to obtain the SH by measurement of relative humidity (RH), temperature and barometric pressure with physical sensors, and then to estimate the SH using a fit equation. In this paper a novel approach is described: a system of neural networks trained to estimate the SH using data that already exists on the vehicle bus. The neural network system, which is referred to as a virtual SH sensor, incorporates information from the global navigation satellite system such as longitude, latitude, time and date, and from the vehicle climate control system such as temperature and barometric pressure, and outputs an estimate of SH. The conclusion of this preliminary study is that neural networks have the potential of being used as a virtual sensor for estimating ambient and intake manifold's SH.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A Preliminary Study of Virtual Humidity Sensors for Vehicle Systems


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Fang, Chen (Autor:in) / Weber, David (Autor:in) / MacNeille, Perry (Autor:in) / Dai, Qi (Autor:in) / Wang, Xipeng (Autor:in) / Murphey, Yi (Autor:in)

    Kongress:

    SAE 2014 World Congress & Exhibition ; 2014



    Erscheinungsdatum :

    01.04.2014




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    A Preliminary Study of Virtual Humidity Sensors for Vehicle Systems

    Fang, C. / Wang, X. / Dai, Q. et al. | British Library Conference Proceedings | 2014


    Ambient humidity virtual sensor

    SUN MINGQIU / EDWARDS DAVID E / SMITH CHRISTOPHER P et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    Humidity control for olfaction sensors

    VARUGHESE SIBU / NESPOLO MARTÍN / KRZYZAK THOMAS et al. | Europäisches Patentamt | 2025

    Freier Zugriff

    AMBIENT HUMIDITY VIRTUAL SENSOR

    SUN MIN / EDWARDS DAVID EUGENE / SMITH CAMERON PAUL et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    HUMIDITY CONTROL FOR OLFACTION SENSORS

    VARUGHESE SIBU / NESPOLO MARTÍN / KRZYZAK THOMAS et al. | Europäisches Patentamt | 2022

    Freier Zugriff