| Facing the three challenges of severe energy consumption,environmental pollution and climate change,vigorously developing new energy vehicles has become an important way for the automobile industry to achieve sustainable development.At present,the development of new energy vehicles takes pure electric vehicles as the dominant direction and strategic focus.Due to the huge difference between the structure of pure electric vehicles and traditional fuel vehicles,the structure and performance of the brake system of pure electric vehicles also have great changes from the braking system of traditional fuel vehicles.This subject is based on the development project of a company’s pure electric van transportation vehicle brake system,According to the vehicle parameters to develop the braking system of pure electric vehicles.A new vacuum assist system is designed to get rid of the dependence of the traditional brake system on the engine vacuum source.This topic will match and design the brake system of a pure electric van transport vehicle,in order to effectively improve the enterprise’s ability to design a pure electric commercial vehicle brake system.The main research contents of this article are as follows:(1)Matching design and verification of the braking system of a pure electric van transport vehicle.Through selection analysis,design and calculation of key components,front and rear braking force distribution,brake system parameter verification,and theoretical numerical analysis,in particular,a new vacuum assist system is designed to the pure electric vehicle to get rid of the dependence of the traditional brake system on the engine vacuum source,finally matched and designed the main components of the brake system of a pure electric van.(2)CAE analysis on key parts of the braking system using ABAQUS software.According to the calculation results,the CATIA software is used to draw the digital model of the key components of the braking system,and based on the actual working conditions,the ABAQUS software is used to perform CAE analysis on the digital model and the prototype is developed based on the analysis results.(3)Test of the prototype.The test items,test conditions and test methods of the trial prototype are introduced.Then test the prototype.Finally,combined with the test data,it is analyzed whether the trial prototype meets the regulatory requirements and actual use requirements.Finally,the structure and design parameters of the prototype are matched with the braking performance of the vehicle to ensure The vehicle has good braking and driving safety. |
