| As the environmental problems such as haze appear and oil and other fossil resource are becoming increasingly depleted,the development of new energy vehicles is imperative.With its numerous,advantages,PEMFC is considered to be an ideal alternative to internal combustion engine power in the future.Light electric vehicles(two rounds)widely used in china have the problems of long charging time,short mileage,and the application of PEMFC in light electric vehicles can be a good solution to the above problems;In addition,the control system is important to the normal work of the light fuel cell electric vehicle.Aimed at the light fuel cell electric vehicle,the thesis have designed control system strategy for practical applications;The innovation and main work of this thesis are as follows:(1)The innovation of this thesis is the design and simulation of the control system of the vehicle model in the Cruise/MATLAB simulation platform.(2)Based on the parameters and dynamic characteristics of thevehicle,the parameters of the constitution of power system are caculated and matched;With the control strategy based on the rules,the control system is builed in the Simulink;Finally,on the platform of Cruise software,the vehicle model including the power module and the control system module is built.(3)In the cruise,under three specific conditions,,the rationality of the control strategy is proved by the simulation.The results of the simulation indicate that the designed control system can meet the condition of simulation.(4)The rationality of actual control system is validated in the experiment under three actual driving conditions.The experimental results indicate that the designed control system which is reasonable and effective can satisfy the actual driving conditions. |
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