混合动力汽车实时优化控制策略仿真分析  

Simulation analysis on real-time optimal control strategy for hybrid electric vehicle

作　　者：夏超英[1] 杜智明[1] 

机构地区：[1]天津大学电气与自动化工程学院,天津300072

出　　处：《吉林大学学报（工学版）》2016年第4期1276-1286,共11页Journal of Jilin University:Engineering and Technology Edition

基　　金：'863'国家高技术研究发展计划项目(2012AA111203)

摘　　要：针对无级变速混合动力汽车中发动机工作点与道路工况解耦的运行特点,提出一种基于二次型最优控制理论的实时优化控制策略,该策略在保证动力系统输出量跟踪给定值的同时,通过平滑发动机功率运行曲线,从而间接降低车辆燃油消耗。基于ADVISOR软件的二次开发,建立实时优化控制系统的仿真模型,并在8种不同工况下进行仿真对比,结果表明：本文控制策略不仅使车辆具有良好的动力性能,而且在道路工况未知条件下,能显著降低油耗和排放水平,节油效果与基于庞特里亚金最小值原理（Pontryagin′s minimum principle,PMP）的全局最优控制策略相近,仅相差1.05%~4.82%。A quadratic real-time optimal control strategy is proposed in accordance with the decoupling characteristics between engine operating point and drive cycle in Hybrid Electric Vehicle（HEV）using Continuous Variable Transmission（CVT）.By smoothing the engine operating curve,the strategy minimizes fuel consumption indirectly while the output of the drive system could track the given trajectory.Based on the second development of ADVISOR software,the simulation model is established for real-time optimal control system.Simulation results show that the proposed strategy not only leads to good driving performance of the vehicle with,but also reduces fuel consumption and emission significantly without and priori knowledge of the drive cycle.Compared with the global optimal control strategy based on Pontryagin＇s Minimum Principle（PMP）under eight types of drive cycle,the difference of fuel consumption is only about 1.05%~4.82%.

关 键 词：自动控制技术 并联混合动力汽车 实时控制策略 二次型最优控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]