液驱混合动力车辆能量回收系统关键问题研究  

Study on key problems of the energy recovery system for hydraulic hybrid vehicles

作　　者：张庆永[1] 常思勤[2] 

机构地区：[1]湖北汽车工业学院汽车工程系,十堰442002 [2]南京理工大学机械工程学院,南京210094

出　　处：《机械设计与制造》2011年第4期256-258,共3页Machinery Design & Manufacture

基　　金：汽车动力传动与电子控制湖北省重点实验室(湖北汽车工业学院)开放基金(ZDK201003);湖北汽车工业学院博士科研启动基金(BK201005)

摘　　要：液驱混合动力车辆通过双向液压变量马达排量的改变,将车辆的制动能储存在液压蓄能器中。因此,有必要对双向液压变量马达排量控制机构的响应特性和蓄能器在储能及放能过程中的能量损耗进行研究。建立了排量控制机构的模型,并通过实验得到了关键元件高速开关阀的所需参数,分析了影响响应特性的因素;建立了蓄能器与连接管路的数学模型,对储能和放能过程中的能量损耗影响因素进行了分析。所得结论对液驱混合动力车辆的设计和动态特性分析具有参考意义。Hydraulic hybrid vehicle can store braking energy in hydraulic accumulator by the displacement change of bidirectional variable-displacement motor.It is needed to study the response performance of displacement control unit of bidirectional variable-displacement motor and energy loss of hydraulic accumulator during energy storage and reuse.Mathematic models of displacement control unit were established,experimental research was made to obtain parameters of high speed on-off valve and factors influencing response performance were analyzed.Mathematic models of hydraulic accumulator and connective pipes were developed,energy loss of hydraulic accumulator during energy storage and reuse was analyzed.The results are helpful for the design and dynamic performance analysis of hydraulic hybrid vehicle.

关 键 词：液驱混合动力 液压系统 高速开关阀 液压蓄能器 

分 类 号：TH16[机械工程—机械制造及自动化] U463.22[机械工程—车辆工程]