The invention relates to a brake device for a motor vehicle having two axles (A1, A2). At least one axle (A1, A2) has an electric traction motor (TM) for driving and braking at least one wheel arranged on the axle (A1, A2). Energy can be recovered by means of an electric traction motor (TM) during braking. Each wheel has a wheel brake (RB1, RB2, RB3, RB4; h-EMBi is selected from H-EMBi; eMBi). According to the invention, a pressure supply (DV) is provided, which has a pump (P), and the pump (P) is in the form of a piston-cylinder unit or a rotary pump (ZRP), which is driven by an electric motor (M). The pressure supply device (DV) can both build up and reduce pressure, in particular by means of a back-and-forth movement of the piston of the piston-cylinder unit or a reversal of the direction of rotation of the rotary pump, and has at least one pressure supply outlet (DVa). The pressure supply (DV) is part of the pressure supply device (DV1). The pressure supply device (DV1) has at least two outlet lines (VLa1, VLa2) and at least two connection points (VLb1, VLb2) for connection to the brake circuits (BK1, BK2), to the ABS/ESP unit (ABS/ESP) and/or to the actuation device (BE). Each connection point (VLb1, VLb2) can be disconnected from the voltage supply (DV) by means of at least one switching valve (SVA1, SVA2). Each outlet line (VLa1, VLa2) is hydraulically connected to the pressure supply outlet (DVa) directly or by means of a connecting line (VLd). The open-loop and closed-loop control unit (ECU) controls the components of the at least one electric traction motor (TM) and the pressure supply device (DV1) in such a way that, in interaction with the pressure supply device (DV1, DV2) and the at least one electric traction motor (TM1, TM2, TM3), a braking deceleration can be set for each brake circuit (BK1, BK2), each shaft (A1, A2) or a wheel brake of the shaft (A1, A2), in each case, i.e., in the interaction with the shafts (A1, A2) or the shafts (A1, A2), the braking deceleration can be set for each brake circuit (BK1, BK2). A2) having different braking torques at the wheel brakes.

    本发明涉及用于具有两个轴(A1,A2)的机动车辆的制动装置。至少一个轴(A1,A2)具有用于驱动和制动布置在轴(A1,A2)上的至少一个车轮的电动牵引电机(TM)。在制动期间可以借助于电动牵引电机(TM)回收能量。每个车轮具有车轮制动器(RB1,RB2,RB3,RB4;H‑EMBi;EMBi)。设置有供压器(DV),该供压器(DV)具有泵(P),并且泵(P)为活塞‑缸单元或旋转泵(ZRP)的形式,泵由电机(M)驱动。供压器(DV)特别是借助于活塞‑缸单元的活塞的前后运动或旋转泵的旋转方向的反转既能建立压力也能够降低压力,并且具有至少一个压力供应出口(DVa)。供压器(DV)是压力供应装置(DV1)的一部分。压力供应装置(DV1)具有至少两个出口管路(VLa1,VLa2)和用于连接至制动回路(BK1,BK2)、连接至ABS/ESP单元(ABS/ESP)和/或连接至致动装置(BE)的至少两个连接点(VLb1,VLb2)。每个连接点(VLb1,VLb2)能够借助于至少一个切换阀(SVA1,SVA2)与供压器(DV)断开。每个出口管路(VLa1,VLa2)直接或借助于连接管路(VLd)液压连接至压力供应出口(DVa)。开环和闭环控制装置(ECU)控制至少一个电动牵引电机(TM)和压力供应装置(DV1)的部件使得:在与压力供应装置(DV1,DV2)和至少一个电动牵引电机(TM1,TM2,TM3)的相互作用中,能够分别针对每个制动回路(BK1,BK2)、每个轴(A1,A2)或轴(A1,A2)的车轮制动器来设置制动减速,即在轴(A1,A2)或轴(A1,A2)的车轮制动器处具有不同的制动转矩。


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    Titel :

    Brake device, in particular for electrically driven motor vehicle


    Weitere Titelangaben:

    特别用于电驱动式机动车辆的制动装置


    Beteiligte:
    LEIBER THOMAS (Autor:in)

    Erscheinungsdatum :

    2022-04-15


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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