A vehicle body speed estimation method applied to a four-wheel drive vehicle (1) includes: acquiring an estimated vehicle body speed based on wheel speeds or a longitudinal acceleration of the vehicle (1); determining whether an operation condition that includes at least a condition that the estimated vehicle body speed is higher than an operation determination speed is satisfied; performing torque limitation to reduce a torque of a portion of wheels (5) of the vehicle (1) when the operation condition is satisfied; determining whether a stop condition that includes a condition that the estimated vehicle body speed is lower than or equal to a stop determination speed or a condition that a duration of a state where a wheel acceleration of the portion of the wheels (5) is higher than zero is longer than or equal to a set period of time; and stopping the torque limitation when the stop condition is satisfied.


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    Title :

    VEHICLE BODY SPEED ESTIMATION METHOD AND VEHICLE BODY SPEED ESTIMATION APPARATUS


    Additional title:

    VERFAHREN UND VORRICHTUNG ZUR SCHÄTZUNG DER GESCHWINDIGKEIT EINES FAHRZEUGS
    PROCÉDÉ D'ESTIMATION DE LA VITESSE DE LA CARROSSERIE D'UN VÉHICULE ET APPAREIL D'ESTIMATION DE LA VITESSE DE LA CARROSSERIE D'UN VÉHICULE


    Contributors:

    Publication date :

    2025-01-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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