汽车主动悬架控制策略研究及分析

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收稿日期 ：2Ol2-10-16Abstract：In order to improve the car ride com-fort and safety，vehicle the active suspension sys-tern.According to automobile suspended framestructure，the establishment of a two degree offreedom 1/4 body active suspension mode1.Becauseof fuzzy control has the modeling simple，high con-trol precision，nonlinear adaptability etc，and in thevehicle active suspension control strategy has beenthe widespread application.Because of its structurewith PID controller set flexible，parameter settingconvenience。the model error robustness etc.W illtheir combination，this paper put forward a newcontrol strategy.Design the velocity and accelera-tion in the body for the input of fuzzy PID control-ler，realizing the active suspension contro1.At thesame time。using Matlab/Simulink MA computersimulation was conducted to improve the purposeof vehicle vertical vibration reduction.The simula-tion results show that the designed by fuzzy con-trol strategy of active suspension system ，obviously