A global model based method for fault detection and physical diagnostics is developed using parameter estimation-identification in automotive problems. The procedure has been specifically tested on analytical models of the dynamical behaviour of lateral motion comprising rall-yaw attitude and front-rear and center of mass sideslips dynamics in which all the parameters have a physical sense and later on models of specific absorbers. Typical faults' examples corresponding to physical parameter subsets that can be detected and diagnosed are suspension stiffness and damping coefficients, front and rear sideslip stiffness, load and inertia mismatches and diverse combinations of them for the lateral motion and specific friction terms for the shock absorbers.


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    Title :

    Parameter estimation in analytical models of automotive vehicles and fault diagnosis


    Additional title:

    Die Ermittlung der Parameter in analytischen Modellen von Kraftfahrzeugen und deren Fehlerdiagnosen


    Contributors:
    Letty, L. le (author) / Nguyen, B. (author)


    Publication date :

    1995


    Size :

    14 Seiten, 4 Bilder, 9 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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