机车车辆半主动悬挂控制系统的研究

为解决我国铁路提速后提速机车与动力车普遍存在的横向平稳性能不佳而难以适应列车在高速运行时对平稳性的要求的问题,对二系横向悬挂系统采用半主动悬挂方式,研究了机车车辆横向半主动悬挂系统的控制策略、横向天棚减振控制原理及其电子控制系统构成.研究结果表明:此控制系统采用比PID控制更便捷的控制方法,可实现横向阻尼调节,结构相对简单,实时性好,价格低廉且能耗低,控制简单,失效导向安全性良好,在此系统控制下,半主动减振器能够实现阻尼系数的在线连续调节;此系统在减振器试验台上与半主动减振器的联合实验和仿真计算所得横向平稳性指标分别为2.894和2.746,表明控制系统工作稳定,能满足控制要求,车体运行的平稳性优于被动悬挂系统.

Research on electronic control system in railway vehicle semi-active suspension

In order to solve the poor traverse stability in locomotive and powercarsater which does not satisfy the demand of stability when the train speed is increased, the semi-actlve suspension in the secondary active suspension was applied. The strategy of lateral shyhook control principle and electronics control system was studied, whose control method is more advanced than PID, and its locomotive semi-active traverse suspension system is low in energy consumption. It is simple to be controlled and is good in effective guiding safety, which can exercise traverse control regulation with good real time. With this controller, damp coefficient of semi-active damper can be changed steplessly on line. The results of the combined test of shake-reducing platform test and semi-active shake-reducer and the simulated computation demonstrate that traverse stability index is 2.849 and 2.746, respectively, which shows the system is more reliable and superior than the passive suspension.