Study On Design Optimization Of The PHEV Plastic Fuel Tank Equipped With Built-in-Column

With the global environmental problem and the increasing energy problem,the new energy car has become the main direction of automobile industry development in the future.In a lot of new energy automotive technology scheme,plug in hybrid electric vehicle(PHEV),with its good practicability and technical maturity,is gradually accepted by the general automobile consumer,and will be the vehicle makers in quite a long time in the future the main developing direction.The fuel tank system is the only safe part of the car,which stores fuel,and its design research is bound to be affected by the promotion and application of hybrid cars.Closed high-pressure fuel tank is the main development direction of the PHEV fuel tank system,all the plastic fuel tank suppliers design several built-in columns reinforced plastic fuel tank stiffness to put inside the fuel tank,to meet the requirements of plastic fuel tank airtight resistance of high pressure,but at the same time plastic fuel tank also with poor performance on fall testing.The study focus on PHEV high-pressure plastic fuel tank,by means of finite element analysis technology on fuel tank pressure,aiming at the design of the built-in column layout and structural material of PHEV plastic fuel tank,through comparing the different materials,forms and layouts of built-in column fuel tank body deformation,so as to determine the PHEV high-pressure plastic fuel tank optimal built-in column arrangement.Basis on this,by means of finite element analysis technology of the fuel tank falling,combined with the robustness design ideas,to determine the built-in pillar structure and material of the optimal design parameters and the fuel tank through the material object falling experiments confirm that fuel tank built-in pillar optimal design scheme.