混合动力汽车启停非线性控制器设计

发布时间：2018-01-05 20:20

本文关键词：混合动力汽车启停非线性控制器设计　出处：《吉林大学学报(工学版)》2017年04期 　论文类型：期刊论文

【摘要】：在对混合动力汽车启停运行机理分析的基础上,建立了能够反映启停过程的发动机瞬态动力学特性的AMESim仿真模型;然后,根据发动机启停系统工作原理,将混合动力汽车的启停控制问题转换成转速跟踪控制问题,并推导了简化的面向控制的电机与发动机系统耦合模型;针对系统的非线性特性,设计了非线性三步法启停控制器,并通过输入到状态稳定理论证明了闭环系统的鲁棒稳定性。最后,通过AMEsim和MATLAB/Simulink联合仿真验证了非线性三步法启停控制器的有效性和鲁棒性,实现了混合动力汽车的快速、平稳启停。
[Abstract]:Based on the analysis of the starting and stopping mechanism of hybrid electric vehicle, a AMESim simulation model is established which can reflect the transient dynamic characteristics of the engine. Then, according to the working principle of engine starting and stopping system, the starting and stopping control problem of hybrid electric vehicle is transformed into the speed tracking control problem, and the simplified model of the coupling between motor and engine system is deduced. Aiming at the nonlinear characteristics of the system, a nonlinear three-step starting and stopping controller is designed, and the robust stability of the closed-loop system is proved by input into the state stability theory. The effectiveness and robustness of the nonlinear three-step starting and stopping controller are verified by AMEsim and MATLAB/Simulink simulation.
【作者单位】：吉林大学汽车仿真与控制国家重点实验室;吉林大学通信工程学院;吉林大学工程仿生教育部重点实验室;
【基金】：国家自然科学基金项目(615201106008,61374046,61573165)
【分类号】：TP273;U469.7
【正文快照】： 0引言针对启停过程中发动机和电机的切换策略制定问题,文献[1]提出了利用减速断油模式下重新标定实现发动机高速启动的方案,这种查表的控制方式并没有考虑车载电器扰动对于发动机期望转速的影响。文献[2]综合考虑了驾驶员安全性、驾驶习惯和油耗排放等标定启停参数,制定参数阈

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