A robust H-infinity control-based hierarchical mode transition control system for plug-in hybrid electric vehicle
A robust H-infinity control-based hierarchical mode transition control system for plug-in hybrid electric vehicle
复制标题
一种基于 H-infinity 控制的鲁棒插电式混合动力汽车分层模式转换控制系统
DOI：
10.1016/j.ymssp.2017.06.023
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发表时间：
2018
影响因子：
8.4
通讯作者：
Chen Zheng
中科院分区：
文献类型：
--
作者：
Yang Chao;Jiao Xiaohong;Li Liang;Zhang Yuanbo;Chen Zheng
为实现从纯电动模式到发动机驱动模式的快速平稳过渡，提出了一种新型的变速器前并联混合动力系统插电式混合动力客车（PHEB）的鲁棒递阶模式过渡控制方法。首先，模式转换过程被分为五个阶段，清楚地描述动力传动系统的动力学。基于动力传动系统和离合器执行机构的动力学模型，提出了一种由上下两层鲁棒H ∞控制器组成的递阶控制结构。在上层，考虑离合器接合时间和车辆冲击，通过鲁棒H ∞控制器计算离合器需求转矩。在下层设计了具有L2增益的鲁棒跟踪控制器，以实现离合器执行机构在参数不确定性和外部干扰情况下的精确位置跟踪控制。在PHEB的传统驱动工况下进行了仿真和硬件在环（HIL）试验。结果表明，所提出的递阶控制方法可以获得良好的控制性能：模式转换时间大大减少，可接受的冲击。同时，所设计的控制系统对参数不确定性和干扰具有明显的鲁棒性。该方法可为实际车辆控制器设计提供理论参考。
To realize a fast and smooth operating mode transition process from electric driving mode to engine-on driving mode, this paper presents a novel robust hierarchical mode transition control method for a plug-in hybrid electric bus (PHEB) with pre-transmission parallel hybrid powertrain. Firstly, the mode transition process is divided into five stages to clearly describe the powertrain dynamics. Based on the dynamics models of powertrain and clutch actuating mechanism, a hierarchical control structure including two robustH∞controllers in both upper layer and lower layer is proposed. In upper layer, the demand clutch torque can be calculated by a robustH∞controller considering the clutch engaging time and the vehicle jerk. While in lower layer a robust tracking controller withL2-gain is designed to perform the accurate position tracking control, especially when the parameters uncertainties and external disturbance occur in the clutch actuating mechanism. Simulation and hardware-in-the-loop (HIL) test are carried out in a traditional driving condition of PHEB. Results show that the proposed hierarchical control approach can obtain the good control performance: mode transition time is greatly reduced with the acceptable jerk. Meanwhile, the designed control system shows the obvious robustness with the uncertain parameters and disturbance. Therefore, the proposed approach may offer a theoretical reference for the actual vehicle controller.