摘要
液压混合动力做为新型混合动力系统,以液压蓄能器为储能元件,通过液压泵/液压马达实现蓄能器中液压能与车辆动能之间转换,具有能量转换密度大、转换效率高的特点。目前,液压混合动力技术已逐步应用于汽车动力系统,国内外研究者通过极限环理论对液压混合动力汽车系统的动态特性进行了大量分析研究。该文根据液压混合动力汽车的系统原理图建立其数学模型,并通过极限环理论对平衡点的稳定性进行研究分析。该研究对提高液压混合动力汽车的稳定性具有重要意义。
As a new type of hydraulic hybrid hybrid system in hydraulic accumulator as the storage component through the hydraulic pump/motor for hydraulic energy conversion and energy conversion characteristics between vehicles,high density,high conversion efficiency of energy.At present,the hydraulic hybrid power technology has been gradually applied to the automotive power system,the researchers at home and abroad through the limit cycle theory of hydraulic hybrid vehicle system dynamics analysis.In this paper,the mathematical model of the hydraulic hybrid vehicle is established,and the stability of the equilibrium point is analyzed by the limit cycle theory.The research is of great significance to improve the stability of hydraulic hybrid vehicle.
作者
林素敏
朱亮亮
刘方
LIN Su-min;ZHU Liang-liang;LIU Fang(Yangling Vocational and Technical College,Xianyang 712100,China)
出处
《液压气动与密封》
2019年第8期49-53,共5页
Hydraulics Pneumatics & Seals
基金
国家重点研发计划子课题(2016YFD0700903)
关键词
液压混合动力
汽车
极限环
平衡点
hydraulic hybrid vehicle
vehicle
limit cycle
equilibrium point
