On the basis of analysis of the theory of mechanical - hydraulic power match system an electro - hydraulic proportional power match system which was suitable for matching tlc900 transporting girder vehicle of the engine was developed according to the driving force - speed curve and parameter , and the control rule and program flow chart about the system were also given 摘要在分析了机械液压功率匹配系统原理的基础上，根据液压系统驱动力速度曲线及参数，提出了适用于tlc900型运梁车液压驱动系统与发动机功率匹配的电液比例功率匹配系统，并给出了控制规律及程序流程图。
It uses electronic control technology and places an oxide sensor in emission system , then according to the change of the rate of the air to fuel , adjust automatically the ejection of fuel . so it can improve dramatically the automobile performance . after installing three - way catalytic converter , it can make the pollutions lower 20 % ~ 50 % than the same vehicle , and the power of car reduce only 5 % 对于适合我国现阶段的电子闭环控制lpg燃料混合系统进行研究，此方法采用电子控制技术，在排气系统中安装了氧传感器，可以根据排气空燃比的变化，自动反馈调节供气量，使燃气汽车性能得到改善，安装三元催化转换器后，可以使污染物排放较同等水平的汽油车降低20 - 50左右，而发动机功率下降仅达5左右。
Based on the basic analysis of the structure and power elements of the hybrid vehicle , this thesis presents a powertrain system with a metal pushing belt cvt , aiming to the development status and trend of the hybrid vehicle technology in our country . a rational control strategy and its work mode of this powertrain system are determined , and correlative parameters such as the engine power , the starting torque , and the differential ratio , the rated power and torque of the motor , and the ratio of the torque synthesizer are systematically designed for the changan star 6350b . at the same time , the design of these parameters is considered as the base of the simulation of the motor control system in next step 在对混合动力汽车的结构型式和动力元件进行基础性理论分析后，针对我国汽车技术发展现状和混合动力汽车技术的发展趋势，设计了一种基于金属带式无级自动变速器cvt混合动力汽车动力传动系统方案，根据该传动系统方案制定了比较合理的控制策略和工作模式，并针对长安之星6350b设计了发动机功率和起始转矩、主减速比、电机的额定功率和转矩、转矩合成器速比等相关参数，为下一步的电机控制系统仿真实验打下基础。
The experiment study indicates that this system can improve the driving performance of the engine effectively to compensate the power drop of engines , and also the expected effect of exhaust emission is obtained firstly , the current situation of lpg fueled auto from home and abroad is stated comprehensively 经过试验验证，该系统能有效地提高发动机动力性使发动机功率下降得到补偿，同时在发动机排放上也达到了预期的效果。本文首先在对国内外lpg汽车发展现状进行了综合分析的基础上研究设计了lpg液态缸外电控喷射系统。
