串联式液压混合动力车辆能量管理策略的设计与分析  

Energy Management Strategy Design and Analysis for in Series Hydraulic Hybrid Vehicles

作　　者：周鹏[1] 杨秀建[1] 刘明勋[1] 

机构地区：[1]昆明理工大学交通工程学院,云南昆明650500

出　　处：《机床与液压》2014年第23期110-114,133,共6页Machine Tool & Hydraulics

基　　金：国家自然科学基金资助项目(51005109)

摘　　要：以重型串联式液压混合动力汽车为研究对象,提出了基于规则的能量管理策略,并对整车设计了4种工作模式。搭建了其Matlab/Simulink整车仿真模型,对液压混合动力车辆总需求功率、发动机功率、液压系统回收功率、蓄能器流量、SOC(State of Charge)等参数进行了仿真,分析对比了传统汽车和液压混合动力汽车发动机扭矩工作点。仿真结果表明:液压混合动力汽车发动机和液压系统提供的功率可以满足总需求功率要求,其燃油经济性显著提高,SOC保持在合理范围内,发动机工作平稳,所设计的能量管理策略可靠有效。By taking the in series heavy hydraulic hybrid vehicles as the study object, the rule？based energy management strategy was presented, and four modes of whole vehicles operation were designed. The simulation model of whole vehicles for Matlab/Simulink was established. The total demand power, engine power, hydraulic system recovery power, accumulator flow, State of Charge （ SOC） and other parameters for simulation of hydraulic hybrid vehicles were performed. The torque operating points of engine of the traditional vehicles and hydraulic hybrid vehicles were analyzed and compared. Simulation results show that：The power provided by the hydraulic hybrid vehicles engine and hydraulic system can meet the total demand of power requirements, which fuel economy is improved signifi？cantly, SOC is kept within reasonable limits, the engine is worked smoothly, and the design of energy management strategy is reliable and effective.

关 键 词：液压混合动力汽车 能量管理策略 工作模式 燃油经济性 

分 类 号：U463.22[机械工程—车辆工程] U469.79[交通运输工程—载运工具运用工程]