| Electric vehicle has the characteristics that energy conservation and environmental protection, but the mileage of Electric vehicle is limited, charging infrastructure is not perfect, the cost of power battery and maintenance is too high. Aluminum air fuel cell with high specific energy, it can supply high current continuous long time, the product of reaction is pollution-free and recyclable etc, but the output voltage of aluminum air fuel cell is too low,the reaction system is too big.Make full use of the advantages between aluminum air fuel cell and all electric vehicle effective, the author of this thesis designed a electric- electric extend range vehicle based on the aluminum air fuel cell system.Collected and analyzed the development of electric vehicle technology, and studied the characteristics of aluminum air fuel cell structure,the activity of anode material, the technology of reaction product and impurity precipitation; the design direction and basic parameters of this thesis, and the target parameters of vehicle were decided. The general layout design of the vehicle was completed. Combined with the design parameters of vehicle, the calculation and match of the driving system parameters were completed. Optimized the structure of existing aluminum air fuel cell product, the author of this thesis designed a integrated electrolyte box that based on the function with circulationã€cool and filter; A power supply control system of vehicle also designed, it can control the power generation system of optimized aluminum air fuel cell, and the charging system between aluminum air fuel cell and lead-acid batteries, the power supply control system of lead-acid batteries effective.The simulation models of vehicle system were established by the ADVISOR software, the simulation results of the vehicle were obtained and analyzed. It can provides the technical support and theoretical reference for the parameters match of vehicle driving system, the mileageã€max speedã€accelerationã€target grade-ability and target parameters of vehicle.The power generation ability of aluminum air fuel cell and the aluminum air fuel cell system after optimized, and the circulation function of integrated electrolyte box were tested. The function of aluminum air fuel cell control system, the charging system between aluminum air fuel cell and lead-acid batteries, the vehicle power supply system, the max speed, the acceleration, the estimate mileage, the grade-ability, the minimum turn radius,also the minimum clearance between vehicle and ground were tested.The simulation and test results show the function of vehicle subsystems meet the design requirements, all function parameters of vehicle tested meet the design target requirements, the calculation and match of each sub-systems parameters are correct and reasonable. |
