[Problem] To provide a vehicle brake hydraulic control device such that it is possible to accurately determine, with a simple method, when the coefficient of friction of the travel road surface to tires changes suddenly from a low coefficient of friction coefficient to a high coefficient of friction. [Solution] A vehicle brake hydraulic control device which is capable of hydraulic control of the brake hydraulic pressure applied to wheel brakes. It is determined whether or not the pressure-increasing time in the present pressure-increasing control exceeds a determination time which is set on the basis of the pressure-increasing time in past pressure-increasing control. If the pressure-increasing time in the present pressure-increasing control exceeds the determination time, it is determined that the road surface on which the vehicle is traveling has changed from a road surface with a low coefficient of friction to a road surface with a high coefficient of friction. [Effect] It is possible to accurately determine, with a simple method, when the road surface on which the vehicle is traveling has changed suddenly from a road surface with a low coefficient of friction to a road surface with a high coefficient of friction.


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    Titel :

    Vehicle brake hydraulic control device


    Beteiligte:

    Erscheinungsdatum :

    22.08.2019


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

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



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