Powertrain design and energy management of a novel coaxial series-parallel plug-in hybrid electric vehicle  

作　　者：ZHANG LiPeng QI BingNan ZHANG RunSheng LIU JingChao WANG LiQiang 

机构地区：[1]School of Automobile and Energy Engineering,Yanshan University,Qinhuangdao 066004,China [2]school of Electrical Engineering,Yanshan University,Qinhuangdao 060004,China

出　　处：《Science China(Technological Sciences)》2016年第4期618-630,共13页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.51405259);China Postdoctoral Science Foundation funded project(Grant Nos.2014T70072&2013M530608);Colleges and Universities in Hebei Province Science and Technology Research Project(Grant No.QN2015056)

摘　　要：For a series plug-in hybrid electric vehicle,higher working efficiency can be achieved by the drive system with two small motors in parallel than that with one big motor alone.However,the overly complex structure will inevitably lead to a substantial increase in the development cost.To improve the system price-performance ratio,a new kind of series-parallel hybrid system evolved from the series plug-in hybrid system is designed.According to the technical parameters of the selected components,the system model is established,and the vehicle dynamic property and pure electric drive economy are evaluated.Based on the dynamic programming,the energy management strategy for the drive system under the city driving cycle is developed,and the superiority validation of the system is completed.For the studied vehicle driven by the designed series-parallel plug-in hybrid system,compared with the one driven by the described series plug-in hybrid system,the dynamic property is significantly improved because of the multi-power coupling,and the fuel consumption is reduced by 11.4%with 10 city driving cycles.In a word,with the flexible configuration of the designed hybrid system and the optimized control strategy of the energy management,the vehicle performance can be obviously improved.

关 键 词：plug-in hybrid electric vehicle series-parallel hybrid system multi-power coupling dynamic programming energymanagement 

分 类 号：U469.72[机械工程—车辆工程] TQ545[交通运输工程—载运工具运用工程]