To provide a brake control device that increases brake liquid pressure through a second pressure control unit when a first pressure control unit is in a bad condition and that can be improved in pressure increase response.SOLUTION: A brake control device comprises: a first pressure control unit which includes a first electric motor as a driving source and controls a braking liquid to first liquid pressure; "a separation unit which has a rear seal member for sealing a pressure control chamber into which the first liquid pressure is introduced and a front seal member for sealing a pressurization chamber located on the opposite side from the pressure control chamber about a piston"; "a second pressure control unit which consists of a fluid pump driven by a second electric motor and connected to the pressurization chamber and a pressure control valve, and adjusts the braking liquid that the fluid pump discharges to second liquid pressure by the pressure control valve and then supplies the braking liquid to a wheel cylinder"; and a suction fluid passage which connects a cylinder and a reservoir together between the rear seal member and front seal member. The fluid pump sucks the braking liquid from the reservoir through a connection part between the front seal member and a piston outer peripheral part.SELECTED DRAWING: Figure 2


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    Titel :

    車両の制動制御装置


    Erscheinungsdatum :

    2022-04-05


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F16J Kolben , PISTONS