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.


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    Title :

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


    Additional title:

    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


    Contributors:

    Publication date :

    2023-03-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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