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基于Lab VIEW,NI Veristand和PXI平台对电控空气悬架进行了硬件在环仿真测试系统的设计研究。介绍了建立硬件在环仿真测试系统的方法,并在Simulink中建立了1/4空气悬架车辆模型和模糊控制器模型。使用Veristand将编译为DLL文件的Simulink模糊控制器导入到PXI-8102实时控制器中,结合上位机中的Lab VIEW程序控制1/4空气悬架模型,并采用道路试验采集到的位移信号模拟路面激励,进行联合仿真测试。搭建了1/4空气悬架试验台实物,替代Simulink模型作为被控对象,利用电液伺服激振台进行激励加载,完成硬件在环实时仿真测试。测试结果表明:所建立硬件在环仿真测试系统的有效性与可行性。
Based on Lab VIEW, NI Veristand and PXI platform, the hardware-in-the-loop simulation test system of electronically controlled air suspension was designed and studied. The method of establishing hardware in-loop simulation test system is introduced. And a 1/4 air suspension vehicle model and a fuzzy controller model are established in Simulink. Simulink fuzzy controller compiled into DLL file by Veristand is imported into the PXI-8102 real-time controller, the 1/4 air suspension model is controlled by the LabVIEW program in the host computer, and the displacement signal collected by the road test is used to simulate the pavement Incentives for joint simulation testing. The test rig of 1/4 air suspension is set up to replace the Simulink model as the controlled object, and the electro-hydraulic servo excitation platform is used for excitation loading to complete the real-time hardware in-loop simulation test. The test results show that the established hardware in-loop simulation test system is effective and feasible.