The invention relates to a brake system with an electric motor driven master cylinder and a pump inlet attenuator. The brake system includes a master cylinder that generates pressure at first and second master cylinder outputs for actuating a first pair of wheel brakes and a second pair of wheel brakes. The secondary brake module is configured to provide fluid at the first power transmission unit output and the second power transmission unit output for actuating wheel brakes. The secondary brake module includes an electric motor configured to selectively pressurize hydraulic fluid by transmitting rotational motion to the at least two pump pistons. A pump inlet attenuator is hydraulically disposed between the reservoir and the pump piston and is in direct fluid connection with the reservoir via a single return line. The electronic control unit controls at least one of the secondary brake module and the master cylinder in response to a brake pressure signal. The pump inlet attenuator regulates the pressure in a single return line to reduce pressure fluctuations at the inlet side of each pump piston only by mechanical pressure attenuation.
本发明涉及具有电动机驱动的主缸和泵入口衰减器的制动系统。制动系统包括主缸,该主缸在第一和第二主缸输出端处产生压力,用于致动第一对车轮制动器和第二对车轮制动器。副制动模块配置成在第一动力传输单元输出端和第二动力传输单元输出端处提供流体,用于致动车轮制动器。副制动模块包括电动机,该电动机配置成通过将旋转运动传递到至少两个泵活塞来选择性地对液压流体进行加压。泵入口衰减器液压地置于储存器与泵活塞之间,并经由单个返回管线与储存器直接流体连接。电子控制单元响应于制动压力信号控制来副制动模块和主缸中的至少一个。泵入口衰减器调节单个返回管线中的压力,以仅通过机械压力衰减来减小每个泵活塞的入口侧处的压力波动。
Brake system with motor-driven master cylinder and pump inlet attenuator
具有电动机驱动的主缸和泵入口衰减器的制动系统
04.03.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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