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为了满足车辆电液动力制动系统集成设计要求,以ZL50装载机为例,构造了虚拟样机模型并通过实车试验验证了模型的正确性;在MATLAB/Simulink环境下,建立了多回路电液动力制动系统的液压模型并搭建了相应实验台,实验验证了液压模型的正确性;设计了机械模型与液压系统控制模型之间的参数关联,建立了装载机电液制动联合仿真模型并进行分析。结果表明虚拟样机模型与液压系统模型之间实现了无缝链接,验证了该设计方法的有效性和实用性。
In order to meet the requirements of vehicle electro-hydraulic dynamic brake system integration design, a virtual prototyping model was constructed with ZL50 loader as an example, and the correctness of the model was verified by a real vehicle test. Under the MATLAB / Simulink environment, a multi-loop electro-hydraulic Dynamic braking system hydraulic model and set up a corresponding test bench, the experimental verification of the correctness of the hydraulic model; design of the mechanical model and the hydraulic system control model of the relationship between parameters, the establishment of the loader electro-hydraulic brake simulation model and carried out analysis. The results show that the virtual prototype model and hydraulic system model to achieve a seamless link between the verification of the design method is valid and practical.