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为了探索工程车辆新型电液制动系统动态特性,需进行系统的台架试验。采用SolidWorks软件对元件及管路进行了合理布置,完成了试验台的搭建。通过外接电位器分别控制电液比例减压阀,实现了各制动轮缸制动压力的单独与比例控制。通过台架试验,获得了不同输入信号、不同制动工况下制动轮缸的压力、流量以及蓄能器压力的响应曲线,为工程车辆新型电液制动系统的设计与理论分析提供了依据。
In order to explore the dynamic characteristics of the new electro-hydraulic brake system for construction vehicles, a systematic bench test is required. SolidWorks software was used to arrange the components and piping rationally and the test bench was completed. By controlling the electro-hydraulic proportional pressure reducing valve by external potentiometer respectively, the braking pressure of each wheel brake cylinder is controlled individually and proportionally. Through the bench test, the response curves of wheel cylinder pressure, flow rate and accumulator pressure under different input signals and different braking conditions were obtained, which provided the design and theoretical analysis for the new electrohydraulic brake system of engineering vehicles in accordance with.