The invention relates to a fail-safe valve unit (1) for a fail-brake function (FN) of an electronically controllable pneumatic brake system (204) of a vehicle (200), in particular of a commercial vehicle (202), the brake system (204) having at least one control unit (410), and the fail-safe valve unit (1) having: a main connection (20) providing a first pressure (p1) and a fail-brake connection (22), a malfunction brake valve (40) which is designed as a monostable valve and which can be controlled by the control unit (410) or by an external control unit (418), and which is designed to pneumatically connect the main connection (20) and the malfunction brake connection (22) in an open position (40A) for controlling the malfunction brake pressure (pN) at the malfunction brake connection (22). According to the invention, in an error condition (FF) and/or a power failure (FS) and/or a diagnostic condition (FT) of the control unit (410), the fail brake valve (40) is in an open position (40A), and a fail brake (BA) of the vehicle (200) is triggered by the brake system (204) by providing a fail brake pressure (pN) at the fail brake connection (22), the main connection (20) is pneumatically connected to the parking brake function (FFS) in order to receive the regulated parking brake pressure (pFS) or a pressure (pFS ') derived therefrom as a first pressure (p1).

    本发明涉及针对用于车辆(200)的、尤其是商用车辆(202)的能电子控制的气动制动系统(204)的故障制动功能(FN)的故障安全阀单元(1),其中,制动系统(204)具有至少一个控制单元(410),并且故障安全阀单元(1)具有:‑提供第一压力(p1)的主接口(20)和故障制动接口(22),‑被构造为单稳态阀的故障制动阀(40),故障制动阀能由控制单元(410)或外部控制单元(418)控制,并且故障制动阀被构造成,‑在打开位置(40A)中将主接口(20)和故障制动接口(22)气动连接以用于在故障制动接口(22)处调控出故障制动压力(pN)。根据本发明设置的是,‑在控制单元(410)的错误状况(FF)和/或电力故障(FS)和/或诊断状况(FT)中,故障制动阀(40)处于打开位置(40A)中,并且‑经由在故障制动接口(22)处提供故障制动压力(pN)通过制动系统(204)来触发对车辆(200)的故障制动(BA),其中,‑主接口(20)与驻车制动功能(FFS)气动连接,以用于接收被调控出的驻车制动压力(pFS)或由该驻车制动压力推导出的压力(pFS‘)作为第一压力(p1)。


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    Title :

    Failsafe valve unit, electronically controllable pneumatic brake system, vehicle, method


    Additional title:

    故障安全阀单元、能电子控制的气动制动系统、车辆、方法


    Contributors:

    Publication date :

    2023-07-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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