液压混合动力车中变量泵/马达的模糊控制器的设计

Design of Fuzzy Controller of the Variable displacement Pump/Motor in Hydraulic Hybrid Power Motor Vehicle

液压混合动力车是一种新型环保节能车辆,以液压蓄能器和变量泵/马达为核心组成刹车能量再生系统,实现节能环保。为了便于对变量泵/马达的排量进行控制研究,建立了变量泵/马达控制系统的数学模型,分别采用模糊PID控制与PID控制对控制系统进行了仿真分析。仿真结果表明,模糊PID控制减小了系统响应的超调量,加快了系统响应时间,使系统具有了良好的动态性能。

Hydraulic Hybrid Power Motor Vehicle is a new type of environmental and energy saving vehicle. The braking power regeneration system is constructed that includes hydraulic accumulator and double direction reversible hydraulic pump. The mathematic model of the system is built. The system based on the fuzzy PID and PID control is simulated. The results show that the fuzzy PID control has quicker response and a less paranormal value. The dynamic function is well.