The invention relates to a method for operating a vehicle brake system and a vehicle brake system. The system comprises a vehicle brake, an electro-hydraulic service braking device and an electric parking braking device. The parking brake device has a spindle drive driven by an electric motor, and the service brake device and/or the parking brake device act on the brake piston. The method determines an additional brake fluid volume to ensure a target clamping force of the parking brake when the parking brake device is applied, and comprises: detecting a number of signal oscillations per unit time of a machine signal of the actuated electric motor by means of a counting mechanism; determining a piston position and/or a piston speed of the brake piston displaced by the electric motor by means of the data processing unit at least on the basis of the number of signal oscillations; determining a displacement chamber volume of the piston chamber at least on the basis of the piston position and/or the piston speed by means of a data processing unit; and determining an additional volumetric amount based on at least the displacement chamber volume, the total volume of the piston chamber, and the target clamping force.
本发明涉及用于操作车辆制动系统的方法及车辆制动系统。该系统包括车辆制动器、电液行车制动装置和电动驻车制动装置。驻车制动装置具有由电动马达驱动的主轴驱动器,行车制动装置和/或驻车制动装置作用在制动活塞上。该方法确定附加制动流体体积以在施加驻车制动装置时确保驻车制动器的目标夹紧力,并包括:借助计数机构检测被致动的电动马达的机器信号的每单位时间的信号振荡的次数;借助数据处理单元至少基于信号振荡的次数确定由电动马达移位的制动活塞的活塞位置和/或活塞速度;借助数据处理单元至少基于活塞位置和/或活塞速度确定活塞腔室的置换腔室容积;和至少基于置换腔室容积、活塞腔室的总容积和目标夹紧力确定附加体积量。
METHOD FOR OPERATING A VEHICLE BRAKE SYSTEM AND VEHICLE BRAKE SYSTEM
用于操作车辆制动系统的方法及车辆制动系统
2024-03-19
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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