Low tire pressure is identified indirectly in a vehicle (300) having at least three wheels (110, 120, 130, 140, 150, 160) of which at least one is driven. A respective rotational speed (ω,1 ω2, ω3, ω4, ω5, ω6) is registered for each wheel of the vehicle. The rotational speeds are compared pairwise to one another to derive at least one test variable (R1, R2). The comparing involves: estimating, for each driven wheel (130, 140), a longitudinal slip (s) resulting from a traction torque (T) applied to the driven wheel; determining a first compensation factor, αi,j, which cancels out the estimated longitudinal slip (s) resulting from the traction torque (T); and evaluating the rotational speeds of the wheels pairwise against one another in consideration of αi,j and of the wheels of at least one evaluated pair are mutually different. the step of pairwise comparing the rotational speeds (ω,1 ω2, ω3, ω4, ω5, ω6) to one another comprises calculating at least one quotient between first and second rotational speeds of first and second wheels respectively. The test variable(s) (R1,R2) is (are) studied to check if one or more of the wheels have a tire pressure below a threshold level.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    METHOD, CONTROL UNIT, COMPUTER PROGRAM PRODUCT AND CARRIER FOR IDENTIFYING LOW TIRE PRESSURE IN A VEHICLE


    Weitere Titelangaben:

    VERFAHREN, STEUEREINHEIT, COMPUTERPROGRAMMPRODUKT UND TRÄGER ZUR IDENTIFIZIERUNG EINES NIEDRIGEN REIFENDRUCKS IN EINEM FAHRZEUG
    PROCÉDÉ, UNITÉ DE COMMANDE, PRODUIT-PROGRAMME INFORMATIQUE ET SUPPORT POUR IDENTIFIER UNE FAIBLE PRESSION DE PNEU DANS UN VÉHICULE


    Beteiligte:
    TORMOD FREDRIK (Autor:in) / BERGENHEM ADAM (Autor:in) / ÖSTLUND TOMAS (Autor:in)

    Erscheinungsdatum :

    15.03.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



    METHOD, CONTROL UNIT, COMPUTER PROGRAM PRODUCT AND CARRIER FOR IDENTIFYING LOW TIRE PRESSURE IN A VEHICLE

    TORMOD FREDRIK / BERGENHEM ADAM / ÖSTLUND TOMAS | Europäisches Patentamt | 2019

    Freier Zugriff

    Tire pressure monitoring system, positioning method, tire pressure electronic control unit and vehicle

    XIE ZUOWEI / SHI WEIHUA / WANG XU | Europäisches Patentamt | 2023

    Freier Zugriff

    Vehicle tire pressure detection unit and vehicle tire pressure detection device

    ZHOU YUANSHENG | Europäisches Patentamt | 2015

    Freier Zugriff