重型车辆轮桥模拟加载系统的解耦控制

Decoupling Control of Simulation Loading System for the Vehicle's Wheels and Transmission Bridges

针对重型车辆轮桥模拟加载系统,建立了数学模型方块图,以此仿真分析了液压耦合和机械耦合对系统控制性能的影响。为了减低或消除这种耦合影响,在系统中加入特定的解耦控制元件,实现了二次调节模拟加载系统的解耦控制,使各子系统成了接近完全独立的控制系统,有效地消除了耦合的不利影响,使系统的控制性能得到了显著改善。所采用的解耦方法,为实现二次调节模拟加载试验台的解耦控制、进一步提高整个试验台的工作性能,提供了一种有效的途径。

The mathematics model was presented for simulation loading system for the vehicle＇s wheels and transmission bridges to simulate and analysis the influence of hydraulic and mechanical coupling on control property of the system. Certain decoupling control elements can be installed to the system so as to make each subsystem almost independent of each other, realize decoupling of secondary regulation load simulation system, eliminate deteriorating effect of coupling and finally quite improve control property. The decoupling strategy proposed provides an efficient way to realize decoupling control of the secondary regulation load simulation test equipment and to enhance its performance.