随着汽车工业的快速发展，机动车造成的能源短缺和尾气排放已经成为了世界各国亟待解决的问题之一。新能源汽车的研究和推广为汽车行业的可持续发展和人们的快捷便利出行提供了基础和保障。根据世界各国新能源汽车的发展规划以及我国关于新能源汽车“三纵三横”的发展战略，基于现有纯电动汽车开展插电式混合动力汽车的开发和研究，特别是基于燃料电池的插电式混合动力汽车，一方面可以有效提高纯电动汽车的续航里程，另一方面也实现了完全的零排放。基于整车开发计划，主要开展整车动力系统仿真、控制系统集成、燃料电池系统热管理和供氢系统安全控制等方面的研究。首先构建燃料电池插电式混合动力汽车动、燃料电池发动机等模型，提出如何设计燃料电池插电式混合动力系统参数的方法。通过整车功率及能量分析初步确定动力系统关键参数，及对整车动力性、经济性的影响。其次，从整车控制系统角度对车辆的高低压系统和控制系统及策略进行了方案设计及整车的实现，基于典型燃料电池轿车的动力系统分析，提出了相应的电电混合动力构型；完成整车控制架构及高低压唤醒系统方案设计，建立基于开关模型的有限状态分层控制策略及预测模型的电机功率控制策略。结果表明，通过相关策略优化可以保证整车动力输出能够持续平稳并提前对功率需求进行预判和调整，同时优化用于功率分配中的控制策略，保证了能量管理更满足整车行驶需求。再次，开展整车热管理优化及仿真研究。为充分利用燃料电池电堆的余热，将燃料电池电堆的余热与动力电池冷却系统和轿厢供暖系统相关联。首先对动力电池包内单体放热情况进行分析，依据不同放电倍率下的单体温度变化情况拟定动力电池包内的液流管路，通过对不同环境、不同电堆输出功率等情况下电堆余热对动力电池单体温度的改变，研究动力电池及燃料电池热管理的最优方案。同时，在冬季车辆正常运行过程中利用电堆的余热给乘员舱加热，减少动力电池的消耗。最后，针对燃料电池汽车供氢系统中的高压氢气瓶及相关阀体管路在车辆发生碰撞时的安全性，利用LS-DYNA和Abaqus分析模型和方法分别对氢气瓶级后舱碰撞后的状态及氢气瓶缠绕层的影响进行分析。研究发现，安装氢气瓶后车辆发生后碰时，乘员受到较大的影响，因此对于燃料电池汽车需要加强对于碰撞情况下轿厢乘员的保护研究。此外，为保证氢气瓶在受到碰撞时能够安全不发生泄漏爆炸等情况，分析氢气瓶在碰撞工况下的安全性受到工作压力和铺层设计的影响。结果表明内部工作压力

With the rapid development of the automobile industry, energy shortage and exhaust emissions caused by motor vehicles have become one of the most urgent problems in the world. By contrast, the research and promotion of new energy vehicles contribute to the sustainable development of the automobile industry and guarantee people's need for fast and convenient drive. Following the worldwide New Energy Vehicles Development Plan and China’s "Three-Vertical & Three-Horizontal" Development Strategy of New Energy Vehicles, researchers developed and researched on the plug-in hybrid electric vehicles based on existing pure electric vehicles, especially based on fuel cell plug-in Electric hybrid vehicles. These studies can on the one hand effectively improve mileage of pure electric vehicles, and on the other hand achieve absolute zero emissions.In this research, which is based on the whole vehicle development plan, studies mainly focused on vehicle power system simulation, control system integration, fuel cell system thermal management and hydrogen supply system safety control. Firstly, researchers built the whole vehicle dynamics model and fuel cell engine model for fuel cell plug-in hybrid electric vehicle. Furthermore, they put forward the parameter design method of plug-in fuel cell vehicle hybrid power system. Through analyzing the power and energy of the vehicle, researchers preliminarily determined the key parameters of the power system, and their influence on the vehicle dynamics, economical efficiency.Secondly, researchers designed the vehicle's high & low voltage system, the control system and control strategy from the aspect of whole vehicle macro control system, and realized its actual building-up. Based on the analysis of the dynamic system of the typical fuel cell car, they proposed the corresponding electric-electric hybrid dynamic configuration, realizing the whole vehicle controlling architecture, completing the design of the high & low voltage wake-up system, and working out the finite-state stratification controlling strategy based on switch model and the motor power controlling strategy based on the prediction model. The results show that the optimization of relevant strategies can ensure stable power output of the whole vehicle, and can make pre-judgment and pre-adjustment of power requirements beforehand. Meanwhile, the optimization of the power allocation for the controlling strategy guarantees energy management and further satisfies the driving needs of the vehicle.Thirdly, thermal management optimization and simulation research of the vehicle were carried out. To make full use of the waste heat of the fuel cell stack, it was associated with the power battery cooling system and the vehicle heating system. The themal of single cell in packet was analyzed. According to the temperature change of the single cell under different discharge magnification, the liquid flow pipe in the power battery pack was protocolled. Based on the change that the waste heat causes on the temperature of the single cell of power battery in different environment, and with different fuel cell stack output power, researchers tried out the optimal scheme of thermal management of power battery and fuel cell. Secondly, the waste heat of the fuel cell stack was used to heat the crew cabin to reduce the consumption of power batteries during the normal operation of the vehicle in winter.Finally, concerning the safety of the high-pressure hydrogen cylinders and other related pipelines in the hydrogen-supply system of the fuel cell vehicles when collision occurs, researchers took advantage of the analysis models and methods of LS-DYNA and Abaqus to respectively analyze the state of hydrogen cylinders and vehicle trunks in collision and the influence the collision had on the winding layer of the hydrogen cylinders. The study revealed that after the installation of hydrogen cylinder, the occupant was greatly affected when the vehicle collided. Therefore, further researches should be carried out to ensure the safety of the car occupants when the fuel cell vehicles are in collision. In addition, in order to ensure safety, and avoid hydrogen cylinder leakage and explosion in case of collision, researchers studied the influence the working pressure and the ply design have on the safety of the hydrogen cylinder in collision. The results showed that the greater the internal pressure is, the greater the peak value of the stress of the hydrogen cylinder during collision will be; Moreover, with the increase of the angle of the spiral ply, the circumferential ply load decreases while the bearing capacity of the spiral ply fiber gradually increases.The development of key technologies of fuel cell plug-in hybrid vehicle realized the trial-manufacture of its prototype. In the later actual road test, the vehicle reached maximum speed of 150km/h, 0 ~ 50km/h acceleration time of 5.56s, and 60km/h constant speed mileage of 240km (35MPa), basically meeting the pre-set technological requirements of the research and achieving the task goal of designing and developing the prototype of the functional vehicle.