基于优化算法的ISG速度耦合混合动力汽车能量管理策略研究
发布时间：2019-04-27 19:41
【摘要】：随着节能、环保观念逐步得到广泛认可，各大汽车厂商及研究机构，对新能源汽车的开发和研究越来越广泛和深入。混合动力汽车、纯电动汽车、燃料电池汽车作为目前有代表性的节能环保汽车，成为了节能环保汽车研发的热点。其中，，混合动力汽车被认为是目前条件下实现节能环保汽车产业化的最为有效和可行的途径。 本文以单电机行星排耦合机构的速度耦合混合动力系统作为研究对象，主要进行了以下研究： 1建立了整车结构布置图，建立了各关键部件的连接关系图；并对各个关键部件进行了建模研究，主要采用以实验建模法和理论建模法相结合的方法，建立了整车行驶动力模型、发动机模型、ISG电机模型、蓄电池模型和行星排动力学模型。为下一步的整车经济性研究打下了坚实的基础。 2分析了带有行星排的ISG混合动力传动系统的特点，对系统工作模式进行了分析；基于等效油耗的方法建立了瞬时优化能量管理策略，引入了电池电量等效油耗SOC修正系数和平均预期再生制动功率，对电池电量的等效燃油消耗进行修正，以提高该瞬时优化能量管理策略的精度。 3利用动态规划方法，设计了以发动机节气门开度和AMT档位为控制变量，以发动机转速和电池SOC为状态变量，以整个循环发动机燃油消耗最低为目标函数，以电池SOC维持平衡和限制频繁换挡为附加代价函数的动态规划算法。 4基于matlab/simulink仿真平台对瞬时优化能量管理策略和全局优化能量管理策略进行多循环工况的燃油经济性仿真分析，以验证能量管理策略的有效性以及ISG型混和动力汽车与传统汽车相比在燃油经济性方面的优势。 目前，世界各大汽车公司均申请了专利对其混合动力汽车能量管理策略的技术方案进行保护。通过以上研究内容开发具有自主知识产权的混合动力系统能量管理策略来规避国外专利，从而推动我国新能源汽车技术和产业的发展。
[Abstract]:With the energy saving, environmental protection concept has gradually been widely recognized, the development and research of new energy vehicles are more and more extensive and in-depth by the major automobile manufacturers and research institutions. Hybrid electric vehicle (HEV), pure electric vehicle (EV) and fuel cell vehicle (FCEV), as representative energy-saving and environmental-friendly vehicles, have become the focus of energy-saving and environmental-friendly vehicles. Hybrid electric vehicle is considered to be the most effective and feasible way to realize the industrialization of energy-saving and environmental-friendly vehicle at present. In this paper, the velocity-coupled hybrid power system of single motor planetary train coupling mechanism is taken as the research object, and the main research is as follows: (1) the structure layout diagram of the whole vehicle is set up, and the connection diagram of the key components is established; And the modeling of the key components is studied. The driving power model, engine model and ISG motor model are established by combining the experimental modeling method with the theoretical modeling method, and the driving power model, the engine model and the motor model of the whole vehicle are established by combining the experimental modeling method with the theoretical modeling method. Battery model and planetary row dynamics model. It lays a solid foundation for the next step of vehicle economy research. (2) the characteristics of ISG hybrid drive system with planetary row are analyzed, and the working mode of the system is analyzed. Based on the equivalent fuel consumption method, the instantaneous optimal energy management strategy is established. The equivalent fuel consumption SOC correction coefficient and the average expected regenerative braking power are introduced to correct the equivalent fuel consumption of the battery. In order to improve the accuracy of the instantaneous optimization energy management strategy. Using the dynamic programming method, the engine throttle opening and AMT gear are used as control variables, the engine speed and battery SOC as state variables, and the minimum fuel consumption of the whole cycle engine as the objective function. A dynamic programming algorithm with battery SOC maintaining balance and limiting frequent shift as an additional cost function. 4 based on matlab/simulink simulation platform, the fuel economy simulation analysis of instantaneous optimization energy management strategy and global optimization energy management strategy under multi-cycle conditions is carried out. In order to verify the effectiveness of the energy management strategy and the advantages of the ISG hybrid power vehicle in fuel economy compared with the traditional vehicle. At present, the major automobile companies in the world have applied for patents to protect their hybrid vehicle energy management strategies. The energy management strategy of hybrid power system with independent intellectual property rights is developed to avoid foreign patents and promote the development of new energy automobile technology and industry in China.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：U469.7;TP18
本文编号：2467258
[Abstract]:With the energy saving, environmental protection concept has gradually been widely recognized, the development and research of new energy vehicles are more and more extensive and in-depth by the major automobile manufacturers and research institutions. Hybrid electric vehicle (HEV), pure electric vehicle (EV) and fuel cell vehicle (FCEV), as representative energy-saving and environmental-friendly vehicles, have become the focus of energy-saving and environmental-friendly vehicles. Hybrid electric vehicle is considered to be the most effective and feasible way to realize the industrialization of energy-saving and environmental-friendly vehicle at present. In this paper, the velocity-coupled hybrid power system of single motor planetary train coupling mechanism is taken as the research object, and the main research is as follows: (1) the structure layout diagram of the whole vehicle is set up, and the connection diagram of the key components is established; And the modeling of the key components is studied. The driving power model, engine model and ISG motor model are established by combining the experimental modeling method with the theoretical modeling method, and the driving power model, the engine model and the motor model of the whole vehicle are established by combining the experimental modeling method with the theoretical modeling method. Battery model and planetary row dynamics model. It lays a solid foundation for the next step of vehicle economy research. (2) the characteristics of ISG hybrid drive system with planetary row are analyzed, and the working mode of the system is analyzed. Based on the equivalent fuel consumption method, the instantaneous optimal energy management strategy is established. The equivalent fuel consumption SOC correction coefficient and the average expected regenerative braking power are introduced to correct the equivalent fuel consumption of the battery. In order to improve the accuracy of the instantaneous optimization energy management strategy. Using the dynamic programming method, the engine throttle opening and AMT gear are used as control variables, the engine speed and battery SOC as state variables, and the minimum fuel consumption of the whole cycle engine as the objective function. A dynamic programming algorithm with battery SOC maintaining balance and limiting frequent shift as an additional cost function. 4 based on matlab/simulink simulation platform, the fuel economy simulation analysis of instantaneous optimization energy management strategy and global optimization energy management strategy under multi-cycle conditions is carried out. In order to verify the effectiveness of the energy management strategy and the advantages of the ISG hybrid power vehicle in fuel economy compared with the traditional vehicle. At present, the major automobile companies in the world have applied for patents to protect their hybrid vehicle energy management strategies. The energy management strategy of hybrid power system with independent intellectual property rights is developed to avoid foreign patents and promote the development of new energy automobile technology and industry in China.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：U469.7;TP18
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