用于电动车辆和具有3阶(had)至5阶(ad)自主驾驶的车辆的具有两个压力供应单元的冗余制动系统

文档序号:23624 发布日期:2021-09-21 浏览:27次 >En<

阅读说明:本技术 用于电动车辆和具有3阶(had)至5阶(ad)自主驾驶的车辆的具有两个压力供应单元的冗余制动系统 (Redundant brake system with two pressure supply units for electric vehicles and vehicles with 3-order (HAD) to 5-order (AD) autonomous driving ) 是由 托马斯·莱贝尔 于 2019-12-20 设计创作,主要内容包括:本发明涉及用于车辆的制动系统,该制动系统包括以下部件:至少两个液压制动回路(BK1、BK2),每个液压制动回路具有至少一个液压作用的车轮制动器(RB1、RB2、RB3、RB4),至少两个压力供应装置(DV1、DV2),所述两个压力供应装置中的每个压力供应装置由电动马达驱动器(M1、M2)驱动,具有阀的至少一个阀组件(HCU),该阀用于车轮单独的制动压力调节以及/或者用于使车轮制动器(RB1、RB2、RB3、RB4)与压力供应装置(DV1、DV2)分离,或将该车轮制动器连接至该压力供应装置,至少一个电子开环和闭环控制单元,其中,所述至少一个电子开环和闭环控制单元中的一个电子开环和闭环控制单元是控制制动系统的部件的各个开环和闭环控制单元的上级中央控制单元(M-ECU),以及为车辆的至少一个轴或车轮提供至少一个额外的电动驱动马达(TM1、TM2),该驱动马达用于对轴或车轮进行驱动和减速。本发明的特征在于,为了进行转向干预(扭矩矢量),制动系统使用至少一个压力供应装置(DV1、DV2)来控制至少一个车轮制动器(RB)和/或至少一个电动驱动马达(TM1、TM2)中的压力,特别是以支承的方式进行控制。此外,提供至少一个压力供应装置(DV1、DV2),所述至少一个压力供应装置具有彼此独立的两个电子开环和闭环控制单元(ECU1、ECU2)或者具有用于控制所述至少一个压力供应装置的电动马达驱动器(M1、M2)的双重冗余开环和闭环控制单元(DV1-ECU、DV2-ECU),以及/或者每个压力供应装置(DV1、DV2)被分配到一个制动回路(BK1、BK2),以用于制动系统的受控操作,并且提供连接模块(VM),以用于选择性地连接制动回路(BK1、BK2),以便在一个压力供应装置(DV1、DV2)发生故障时,由另一个仍在运作的压力供应装置(DV1、DV2)对两个制动回路(BK1、BK2)执行压力供应或压力控制。(The invention relates to a brake system for a vehicle, comprising the following components: at least two hydraulic brake circuits (BK1, BK2), each having at least one hydraulically acting wheel brake (RB1, RB2, RB3, RB4), at least two pressure supply devices (DV1, DV2), each of which is driven by an electric motor drive (M1, M2), at least one valve assembly (HCU) having a valve for individual brake pressure regulation of the wheels and/or for decoupling the wheel brake (RB1, RB2, RB3, RB4) from the pressure supply devices (RB1, DV2) or connecting the same thereto, at least one electronic open-and closed-loop control unit, wherein one of the at least one electronic open-and closed-loop control unit is a central upper-level control unit (M-ECU) of the respective open-and closed-loop control unit controlling the components of the brake system, and providing at least one additional electric drive motor (TM1, TM2) for at least one axle or wheel of the vehicle, the drive motor being for driving and decelerating the axle or wheel. The invention is characterized in that the brake system uses at least one pressure supply device (DV1, DV2) to control the pressure in at least one wheel brake (RB) and/or at least one electric drive motor (TM1, TM2), in particular in a supporting manner, for steering interventions (torque vectoring). Furthermore, at least one pressure supply device (DV1, DV2) is provided, which has two electronic open-and closed-loop control units (ECU1, ECU2) which are independent of one another or a dual redundant open-and closed-loop control unit (DV1-ECU, DV2-ECU) for controlling the electric motor drives (M1, M2) of the at least one pressure supply device, and/or each pressure supply device (DV1, DV2) is assigned to one brake circuit (BK1, BK2) for the controlled operation of the brake system, and a connecting module (VM) for selectively connecting the brake circuits (BK1, BK2), in order to perform pressure supply or pressure control of the two brake circuits (BK1, BK2) by the other pressure supply device (DV1, DV2) which is still operating in the event of a failure of one pressure supply device (DV1, DV 2).)

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