液压混合动力工程车辆能量控制策略  

Energy Control Strategy of Hydraulic Hybrid Engineering Vehicle

作　　者：曹万仓 林慕义[1,2] 王连新[1] 李竹芳[1] 

机构地区：[1]北京信息科技大学机电工程学院,北京100192 [2]北京电动车辆协同创新中心,北京100192

出　　处：《液压与气动》2015年第12期25-30,共6页Chinese Hydraulics & Pneumatics

基　　金：国家自然科学基金(51275053);北京市教委科研基地建设项目(PXM2014_014224_000065)

摘　　要：为解决液压混合动力工程车辆制动系统的能量控制问题,引进了制动系统转矩分配系数,基于模糊控制原理,以制动强度、再生蓄能器初始SOC、车速作为输入信息,以再生制动力与电液制动力的分配比例为输出信息,设计了液压混合动力车辆制动能量模糊控制策略。运用MATLAB/Simulink进行仿真,分析了该控制策略在制动模式下的再生制动转矩和电液制动转矩分配的实时变化情况,并与同条件下不用该控制策略进行了对比分析,证明了该控制策略在确保制动安全性的前提下可以高效的提高能量回收效率。To solve the problem of energy control of hydraulic hybrid Engineering vehicles braking torque distribution control strategy is coefficient of braking system is introduced, and the hydraulic hybrid vehicle braking system, the energy fuzzy designed based on the fuzzy control principle, which takes the braking intensity, the initial SOC of regenerative accumulator, and the speed as the input information and the distribution regenerative braking power and the electro-hydraulic power distribution as the output proportion of the power of the information. The control strat- egy of real-time changes is analyzed in the braking mode of the regenerative braking torque and electric hydraulic braking torque distribution in the same condition, it is ise of ensuring the braking by MATLAB/Simulink. Comparing with the situation without using this control strategy proved that the control strategy can improve the energy recovery efficiency on the prem- safety.

关 键 词：液压混合动力 控制策略 模糊控制 回收效率 

分 类 号：TH137[机械工程—机械制造及自动化] U463.5[机械工程—车辆工程]