基于动态规划算法的混联混合动力汽车控制策略_左义及.pdf

4 1 4 吉林 大学 学 报 ( 工学 版) V ol. 4 1 N o . 4 20 11 7 J ournal o f Jilin U niv ersity ( Engineering and T echnolo gy Edition) Jul y 20 11 1, 2 1, 2 1, 2 1 左义和 , 项昌乐 , 闫清东 , 王伟达 ( 1. 北京理工大学 机械与车辆工程学院, 北京 1000 81; 2 . 北京理工大学 车辆传动国家重点实验室, 北京 10008 1) 针对某混联型混合动力汽车 布置形式, 构建了整车控制数学模型利用动态规划方 法, 提出了以控制整 个循环发动机燃油消耗最低和电池SOC 维持在理想值为目标 优化函 数提出了动态限制SO C 区域模型设计了动态规划全局搜索算法进行了换档逻辑 优 化仿真对比了基于功率跟随 混联汽车控制策略动态规划方法以及改进 功率跟随策略 结果显示, 动态规划方法可以作为其他控制策略 评价参考, 可以改善功率跟随控制策略控制 效果 车辆工程; 混联混合动力汽车; 动态规划; 荷电状态; 换档逻辑 U 462. 3 A 1671- 54 97( 20 11) 04- 0 898- 06 Paralle-l serial hybrid electrical vehicle control strategy based on dynamic programming algorithm ZU O Y i- he1, 2 , XIA N G Ch ang- le1, 2 , Y A N Q ing- dong1, 2 , WA N G We-i da1 ( 1. School of Mechanical Engineering , Beij ing I nstitute of Technology , Beij ing 10008 1, China; 2. N ational K ey L aboratory of ehicle T ransmission, Beij ing Institute of Technology , Beij ing 10008 1, China) Abstract: A ccording t o t he conf igurat io n of a cer tain p arallel- serial hybrid elect ric vehicle( PSH EV ) , a mat hemat ical m odel w as bu ilt f or the vehicle cont rol. A n opt imizat io n f unction w as proposed taking the eng ine f uel con sumptio n m inimizat ion and t he st at e- o f- ch arge ( SOC ) idealizat ion in the w hole operat ion cy cle as t he targ et s . A dynamically limit ed SO C region m odel w as built . A glo bal sear ch algorit hm w as desig ned f or t he dynamic progr am ming. T he shif t ing lo gic w as also opt im ized. T he PSH EV co nt ro l st rat eg y b ased o n the pow er- t racking algo rithm, t