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鉴于机场运输车特定的应用环境,其转向系统对于响应速度、精确度和稳定性的要求较高,为满足机场运输车转向系统设计要求,提出了2种转向系统设计方案,并建立转向机构数学模型,通过对两方案进行比较分析,液压马达转向系统更符合大角度转向的实际要求。采用增量式PID控制方法,设计出液压马达转向控制系统的具体实现方案;利用AMESim软件进行建模仿真。仿真结果表明:机场运输车转向系统的响应速度、精确度和稳定性都有很大的提高,证明了液压马达转向系统设计方案的合理性和可行性,可为类似产品改良转向系统提供参考。
In view of the specific application environment of the airport transporter, the steering system has higher requirements on the response speed, accuracy and stability. To meet the design requirements of the steering system of the airport transporter, two steering system designs are proposed and the steering mechanism mathematics Model, by comparing the two programs, hydraulic motor steering system more in line with the actual requirements of large-angle steering. The incremental PID control method is used to design the concrete realization scheme of hydraulic motor steering control system. The simulation is carried out by AMESim software. The simulation results show that the response speed, precision and stability of the airport truck steering system are greatly improved. The rationality and feasibility of the design scheme of the hydraulic motor steering system are proved, which can provide references for the similar products to improve the steering system.