A system and method for estimating a tread depth of a tire (12) supporting a vehicle is disclosed. The system (10) includes a sensor unit (30). The sensor unit (30) includes a noncontact time-of-flight sensor (32), the time-of-flight sensor (32) including an emitter (36) for emitting a first pulse (38) to an outer surface (40) of the tread (22), and a lens (44), the lens (44) being configured for capturing the first pulse (38) after it reflects off of the outer surface (40) of the tread (22). The system (10) further includes a processor (76) for measuring a time from emission of the first pulse (38) to capture of the reflected first pulse (42) and for calculating a tread surface distance (56) from the time from emission of the first pulse (38) to capture of the reflected first pulse (42). The emitter (36) is configured for emitting a second pulse to a base (50) of a groove (52) formed in the tread (22). The lens (44) is configured for capturing the second pulse after it reflects off of the base (50) of the groove (52). The processor (76) is configured for measuring a time from emission of the second pulse to capture of the second pulse and for calculating a reference distance (54) from the time from emission of the second pulse to capture of the second pulse. The processor (76) is further configured for determining a depth of the tread (22) from a difference between the tread surface distance (56) and the reference distance (54).


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    Title :

    SYSTEM FOR ESTIMATING TIRE TREAD DEPTH


    Additional title:

    SYSTEM ZUR SCHÄTZUNG DER REIFENPROFILTIEFE
    SYSTÈME D'ESTIMATION DE PROFONDEUR DE BANDE DE ROULEMENT DE PNEU


    Contributors:

    Publication date :

    2024-06-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / B60C VEHICLE TYRES , Fahrzeugreifen



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