摘要：为了能够提高摊铺机液压行驶系统在不同工况下的恒速控制水平,分析摊铺机液压行驶系统的基本原理,深入地研究了专家系统模糊PID控制在其中的应用。通过介绍专家系统模糊PID控制器的基本原理,设计了相应的控制系统,并且使用软件对其进行了仿真。结果表明该设计系统对摊铺机恒速控制具有较好的控制精度。

摘要：为了弥补沥青搅拌站人工标定工作量大、内容繁琐、精度不高的缺点,完善沥青混合料的拌和系统自动化,根据动态标定过程的控制要求,通过分析其控制原理、对比不同的控制方案,基于PLC控制系统,设计了一种间歇式沥青搅拌站自动标定的动态标定控制系统,并对该系统进行测试及分析,得到了标定流量曲线,确定了电机转速与流量的匹配关系。结果表明,该控制系统能实现沥青搅拌站的自动标定。

摘要：In order to design an effective hydraulic motor speed control system, Matlab_Simiulink and AMESim co-simulation technology is adopted to establish more accurate model and reflect the actual system. The neural network proportion-integration-differentiation （PID） control parameters on-line adjustment is utilized to improve system accuracy, celerity and stability. Simulation results indicate that with the control system proposed in this paper, the system deviation is reduced, therefore accuracy is improved; response speed for step signal and sinusoidal signal gets faster, thus acceleration is rapidly improved; and the system can be restored to the control value in case of interfering, so stability is improved.