增程式电动汽车动力系统参数匹配与仿真研究  

Parameter Matching and Simulation Study of Powertrain for Extended-range Electric Vehicle

作　　者：龚贤武[1,2] 吴德军[1] 马建[2] 汪贵平[1] 

机构地区：[1]长安大学电子与控制工程学院,西安710064 [2]长安大学汽车学院,西安710064

出　　处：《机械科学与技术》2014年第6期929-933,共5页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家高技术研究发展计划(863计划)项目(2012AA111106);中央高校基本科研业务费专项资金项目(2013G3322009;2014G1321040)资助

摘　　要：针对某款增程式电动汽车研发中的动力系统参数匹配问题,以整车动力性能和续驶里程要求为设计依据,系统分析了整车动力系统的参数匹配设计方法。从电机驱动系统动力特性与汽车驱动特性的合理匹配入手,由加速性能、爬坡性能、最高车速确定电动机的参数;采用固定速比减速器的单挡传动方案,以能量利用率最优为目标确定传动比参数;由续驶里程和输出功率需求确定蓄电池和增程器的参数。通过Matlab/Simulink和Advisor联合仿真,在NEDC下对车辆的动力系统进行了仿真验证。仿真结果表明:动力系统的设计和参数匹配合理,可以满足整车动力性和续驶里程的要求。In view of powertrain parameter matching of an extended-range electric vehicle,the parameter matching design of the powertrain was discussed based on the specifications of vehicle performance and driving range. The parameters of the motor are determined by the accelerating performance,the grade ability and the maximum vehicle velocity. Reasonable matching of the driving characteristics both the motor and vehicle was reached. A fixed gear ratio transmission is adopted,and the transmission ratio was optimized aimed to improve the energy efficiency. The parameters of the battery and range extender are determined by driving range and power requirement. Through the co-simulation of Matlab /Simulink and Advisor,the power performance of vehicle was simulated in the NEDC（ New European Driving Cycle）. The simulation results indicate that the powertrain scheme and its parameter matching are reasonable,and the power performance and driving range can meet the design requirements.

关 键 词：增程式电动汽车 动力系统 参数匹配 仿真 

分 类 号：U469.72[机械工程—车辆工程]