线控转向四轮轮毂电机电动汽车集成控制研究

发布时间：2018-04-11 04:09

本文选题：线控转向 + 轮毂电机　；参考：《辽宁工业大学》2016年硕士论文

【摘要】：随着汽车电子技术、互联网技术、新能源技术的不断发展,各种形式的电动汽车已经成为各国汽车工业研发的焦点,四轮轮毂电机电动汽车是其中较有发展前景的一种。线控转向四轮轮毂电机电动汽车,转向系统传动比任意可调,四轮驱动力独立可控,是研究汽车智能控制方法的优良载体。论文基于国家自然科学基金青年基金项目“智能四轮独立驱动轮毂电机电动汽车自适应转向研究”,进行了考虑驾驶员喜好传动比的线控转向四轮轮毂电机电动汽车驱动转向集成控制研究,研究内容包括以下几个方面:(1)线控转向四轮轮毂电机电动汽车建模。分析了线控转向系统、轮毂电机系统、电动汽车模型的各个组成部分及其工作原理,在Matlab/Simulink模块中搭建线控转向系统模型和轮毂电机模型,并将其嵌入到CarSim整车模型中,建立线控转向四轮轮毂电机电动汽车模型。(2)驱动转向集成控制算法研究。给出了主动前轮转向和横摆力矩集成控制原理,研究了基于模糊控制理论的主动转向与直接横摆力矩协调控制算法和基于最优控制理论的主动转向与直接横摆力矩集中控制算法,并通过仿真试验对控制算法进行了实验验证。(3)驾驶员喜好转向传动比分类与辨识研究。基于驾驶模拟器实验台,设计实验方案,根据实验数据对驾驶员喜好转向传动比进行分类,并应用BP神经网络建立驾驶员喜好转向传动比辨识模型。(4)汽车驾驶模拟器硬件在环实验验证。应用汽车驾驶模拟器硬件在环试验台,选择典型工况,对所研究的驾驶员喜好转向传动比辨识方法、考虑驾驶员喜好传动比的线控转向四轮轮毂电机电动汽车驱动转向集成控制算法进行验证。
[Abstract]:With the development of automotive electronic technology, Internet technology and new energy technology, various forms of electric vehicles have become the focus of research and development of automobile industry in various countries. The electric vehicle with four-wheel hub motor is one of the more promising ones.The wire steering four wheel hub motor electric vehicle, the steering system transmission ratio can be adjusted arbitrarily, the four wheel driving force is independent and controllable, it is an excellent carrier to study the automobile intelligent control method.The thesis is based on the project of National Natural Science Foundation of China Youth Fund, "Research on Adaptive steering of Intelligent four Wheel Independent Drive Electric vehicle with Hub Motor".In this paper, the research on the integrated steering control of electric vehicle driven by wire steering four-wheel hub motor considering driver's preferred drive ratio is carried out. The research contents include the following aspects: 1) the modeling of electric vehicle with wire steering four-wheel motor.This paper analyzes the components and working principles of wire steering system, hub motor system, electric vehicle model, builds the wire steering system model and hub motor model in Matlab/Simulink module, and embeds them into the CarSim model.An integrated control algorithm for four wheel hub motor electric vehicle driven by wire steering is established.The integrated control principle of active front wheel steering and yaw torque is given.The coordinated control algorithm of active steering and direct yaw torque based on fuzzy control theory and the centralized control algorithm of active steering and direct yaw torque based on optimal control theory are studied.The control algorithm is verified by simulation. The driver preference steering ratio is classified and identified.Based on the experimental platform of driving simulator, the experimental scheme is designed. According to the experimental data, the driver's preference steering drive ratio is classified.BP neural network is used to establish the identification model of driver's preference steering ratio.Using the hardware of the vehicle driving simulator in the ring test rig, select the typical working conditions, and identify the driving ratio of the driver's preference to the steering.An integrated steering control algorithm for electric vehicle driven by four wheel hub motor considering driver's preferred drive ratio is verified.
【学位授予单位】：辽宁工业大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U469.72

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