A method is described for the assessment of the contamination of a rail, in particular for a railway vehicle, comprising the steps of: imposing a first sliding value (δ1) lower than a first threshold (t1) between the wheels (W1) of a first controlled axle (A1) and the rail; the first controlled axle (A1) being the head axle of the railway vehicle; imposing a second sliding value (δ2) greater than a second threshold (t2) between the wheels of a second controlled axle (A2) and the rail; the second axle (A2) being the axle following the first axle (A1) and the second threshold (t2) being greater than the first threshold (t1); determining the trend of the adhesion curve between the wheels (W) belonging to a plurality of controlled axles (An) and the rail, based on a first adhesion value (μ1) between the wheels of the first axle (A1) and the rail, and a second adhesion value (μ2) between the wheels of the second axle (A2) and the rail.

    L'invention concerne un procédé d'évaluation de la contamination d'un rail, en particulier pour un véhicule ferroviaire, comprenant les étapes consistant : à imposer une première valeur de glissement (δ1) inférieure à un premier seuil (t1) entre les roues (W1) d'un premier essieu commandé (A1) et le rail ; le premier essieu commandé (A1) étant l'essieu de tête du véhicule ferroviaire ; à imposer une seconde valeur de glissement (δ2) supérieure à un second seuil (t2) entre les roues d'un second essieu commandé (A2) et le rail ; le second essieu (A2) étant l'essieu suivant le premier axe (A1) et le second seuil (t2) étant supérieur au premier seuil (t1) ; à déterminer la tendance de la courbe d'adhérence entre les roues (W) appartenant à une pluralité d'essieux commandés (An) et le rail, sur la base d'une première valeur d'adhérence (μ1) entre les roues du premier essieu (A1) et le rail, et d'une seconde valeur d'adhérence (μ2) entre les roues du second essieu (A2) et le rail.


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    Title :

    METHODS FOR THE ASSESSMENT OF THE CONTAMINATION AND THE CLEANING OF A RAIL, IN PARTICULAR FOR A RAILWAY VEHICLE


    Additional title:

    PROCÉDÉS D'ÉVALUATION DE LA CONTAMINATION ET DU NETTOYAGE D'UN RAIL, EN PARTICULIER POUR UN VÉHICULE FERROVIAIRE


    Contributors:
    FREA MATTEO (author) / IMBERT LUC (author)

    Publication date :

    2018-12-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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