分布式驱动电动汽车动力转向系统混杂系统动力学及其切换控制（英文）

发布时间：2018-05-31 11:13

本文选题：增程式电动汽车 + 动力转向系统　；参考：《科学技术与工程》2016年17期

【摘要】：分布式驱动电动汽车是燃油汽车和电动汽车过渡的一种新型新能源汽车,动力转向系统(ECIPS)作为电动化底盘集成控制系统(ECIS)的主要组成部分,对电动汽车的设计与装配具有重要的影响.动力转向系统具有典型的不确定性、未建模动态、测量噪声和干扰等非线性动力学特征,是包含离散事件与连续事件的混杂动力学系统.分析了分布式驱动电动汽车动力转向系统的控制结构、控制功能及其动力学行为,基于动力转向系统的输入/输出功能、控制状态和控制系统实现流程,建立了反映连续和离散控制行为的混杂控制系统模型.建立了动力转向系统的混杂控制流程和切换控制结构,进行了25km/h和45 km/h下的蛇形实验.结果表明:在25 km/h下,转向系统转矩的峰值和平均值分别降低了41.68%和41.79%,在45 km/h下,转向系统转矩的峰值和平均值分别降低了30.92%和30.67%,转向轻便性得到明显改善.混杂系统动力学模型及其混杂控制结构反映了分布式驱动电动汽车动力转向系统的动力学行为及其控制特征,不仅揭示了动力转向系统的连续系统工作行为,也反映了离散事件特征,对分布式驱动电动汽车控制性能的改善、智能化水平的提高提供了理论研究意义和工程研究价值。
[Abstract]:Distributed drive electric vehicle is a new type of new energy vehicle in the transition between fuel vehicle and electric vehicle. The power steering system (ECIPS) is the main component of the electric chassis integrated control system (ECIS). It has an important influence on the design and assembly of electric vehicles. Dynamic steering system is a hybrid dynamic system with discrete and continuous events, which is characterized by typical uncertainty, unmodeled dynamics, measurement noise and disturbance. The control structure, control function and dynamic behavior of distributed drive electric vehicle power steering system are analyzed. Based on the input / output function of the power steering system, the control state and the control system realization flow are analyzed. A hybrid control system model for continuous and discrete control is established. The hybrid control flow and switching control structure of power steering system are established. The serpentine experiments under 25km/h and 45 km/h are carried out. The results show that the peak and average torque of steering system are reduced by 41.68% and 41.79% respectively at 25 km/h, and at 45 km/h, the peak and average torque of steering system are reduced by 30.92% and 30.67%, respectively, and the steering portability is obviously improved. The dynamic model of hybrid system and its hybrid control structure reflect the dynamic behavior and control characteristics of distributed drive electric vehicle power steering system, and not only reveal the continuous system operation behavior of power steering system. It also reflects the characteristics of discrete events and provides theoretical research significance and engineering research value for the improvement of control performance and intelligent level of distributed drive electric vehicles.
【作者单位】：江苏理工学院汽车与交通工程学院;人工智能四川省重点实验室;
【基金】：国家自然科学基金(61503163) 常州应用基础研究基金(CJ20130015) 江苏六大人才计划基金(ZBZZ-024) 人工智能开放实验室计划(2014RZY01)资助
【分类号】：U469.72;U463.4

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