【作者】 张宇；

【导师】 尹安东；

【作者基本信息】 合肥工业大学 ， 车辆工程， 2015， 硕士

【摘要】 插电式混合动力汽车(PHEV,Plug-in Hybrid Electric Vehicle)可通过接入家用电源或专用电源为系统中配备的动力电池充电,动力电池中所储存的能量可以满足消费者对纯电续驶里程的要求,其最大的特点是将混合动力和纯电动两种驱动系统结合起来,使混合动力汽车的污染物排放和燃油经济性得到大大改善。本文以我校与某公司联合承担的国家创新工程项目为背景,以插电式混合动力汽车为研究对象,根据设计任务书要求,结合汽车理论及汽车动力学知识对插电式混合动力汽车的发动机、驱动电机、动力电池、和传动系统进行了选型和参数匹配。并在分析了常用的插电式混合动力汽车控制策略的基础上,选择基于规则的逻辑门限值的电辅助控制策略为该车的控制策略。其次,基于Matlab/simulink建立了动力系统各部件、控制策略以及整车仿真模型,并在Matlab/GUI环境下开发仿真模型的图形用户界面,便于仿真参数的输入以及仿真结果的观察,仿真结果表明所建立的插电式混合动力汽车的控制策略以及整车仿真模型可靠、可行。插电式混合动力汽车的动力参数和整车控制策略参数决定了整车燃油消耗和排放性能的好坏,为了实现整车能量的最优利用,采用遗传算法的方法对插电式混合动力汽车动力系统以及控制策略参数进行优化,优化结果表明,在满足设计要求的情况下,虽然整车的动力性能有所降低,但是经济性能和排放性能有所改善,NEDC工况下百公里燃油消耗降低12.5%,纯电动续驶里程提高1.8%,同时CO、HC、NOx排放分别降低6.15%、8.11%和9.16%。更多还原

【Abstract】 Plug-in hybrid electric vehicle can charge the battery through household power or a dedicated power and the stored battery energy can meet the consumer requirement of getting longer electric driving range. Its biggest feature is to combine two kinds of driving system together, which is hybrid mode and electric mode,make the emission and fuel economy of PHEV has been greatly improved.Under the national innovation project undertaken by my school and one company, the paper take the plug-in hybird as study object, focus on the part selection and parameter matching include of engine, drive motor, battery and CVT. Using Matlab/simulink established various simulation of the power system, control strategy and vehicle model, then under the Matlab/GUI environment, develop the graphical user interface of the whole simulation model which is easy to input the simulation parameters and oberserve the simulation results. The simulation result prove that control strategy and the vehicle simulation model is reliable and effective.In order to achieve optimal utilization of vehicle energy,using genetic algorithms to optimize powertrain and control strategy parameter of Plug-in hybrid vehicle. The optimization results show that fuel consumption per kilometer is reduced by12.5%, the pure electric driving range increased by1.8%, while the CO, HC, NOxemissions were reduced respectively by6.15%,8.11%and9.16%, under the NEDC driving cycle. The dynamic performance of the vehicle has decreased, but the economy performance and emissions performance has improved and meets the design requirements.更多还原