液压自由活塞发动机动力系统能量管理  

Energy management of the hydraulic free-piston engine

作　　者：赵振峰[1] 王山[1] 张栓录 黄英[1] 

机构地区：[1]北京理工大学机械与车辆学院,北京100081

出　　处：《中国科技论文》2015年第23期2701-2706,共6页China Sciencepaper

基　　金：高等学校博士学科点专项科研基金资助项目(20131101120019)

摘　　要：提出了一种新型液压自由活塞发动机恒压网络驱动系统,对动力系统的HFPE功率、驱动马达排量与传动比、液压变压器、液压蓄能器等关键部件参数进行设计选型。基于Matlab/Simulink与AMESim,搭建了该恒压网络驱动系统的联合仿真模型,为了使发动机在最佳效率区工作,研究了整车控制策略。结果表明:采用该恒压网络驱动系统的车辆可以满足驱动和制动等相关设计要求,通过研究不同城市循环工况条件下的能量管理策略中关键参数对车辆节能效果的影响规律,可以获得最佳节能方案的能量管理控制策略。An integrated propulsion system based on HFPE is proposed. The hydraulic system consists of the common pressure rail, hydraulic transformer, and fixed displacement pump/motor. The main components are selected to build the Matlab/Simulink and AMESim model. The control strategies of driving and braking are introduced as well. Combined with the characteristics of HFPE the vehicle adopts the ＂thermostat plus power following＂ energy management. The simulation results show that the vehicle can meet the needs of the condition when the vehicle is on the city road. The effects on the fuel consumption of the control variables are studied, and an optimized parameter set for energy management is acquired.

关 键 词：动力机械 自由活塞 液压变压器 车辆驱动 控制策略 能量管理 

分 类 号：U464[机械工程—车辆工程]