Fuzzy control is applied to the tractor - mounted plough control system in this paper . using fuzzy toolbox and simulink . toolbox of matlab to design fuzzy controller and realize the software simulation 同时将模糊控制理论引入到液压悬挂系统中,即采用模糊控制方法利用matlab软件对液压悬挂系统进行了仿真分析,确定了模糊控制的准则。