The Research On Vacuum Booster In The Light Commercial Vehicle Matching Technologies

With the development of automobile industry and the increasing density of automobile application,Performance,braking performance,and pedal of the vacuum booster comfort requirements are also getting higher and higher.As an important section of vehicle,the vacuum booster's performance greatly affects the safety and comfort of the vehicle greatly.Studying the vacuum booster through BJ1045 light commercial vehicle,the paper Summarizes the vacuum booster in the vehicle,design ideas,design method,verification method and fault processing problem etc.Firstly,the thesis introduces the background of the subject,development history and current technology condition of the vacuum booster.It also introduces the features and the design process of the various kinds of the vacuum booster.A brand new understanding to the design ideas and process of the vacuum booster was obtained though this paper,which can be a good foundation for the following work.Secondly,the thesis introduces the working principle,structure design,performance index and Calculation formula of important performance parameters of the vacuum booster.the paper Analysis and evaluation performance characteristics curve method of the vacuum booster,too.This paper focused on the vacuum booster design in the vehicle matching,while proposed only some relevant design indexes for the design and development of the individual the vacuum booster parts supplier.Finally,the paper introduced the general arrangement of the vacuum booster in the vehicle and checks the beating.This project planned the vacuum booster product DVP bench test,the static size verification and dynamic reliability verification for verifying the rationality for the vacuum booster product design index.The needs of the vacuum booster company in the design process were reached through the study of the matching technology of the vacuum booster in light commercial vehicle.This paper also researched such following aspects as the design process of the vacuum booster in the vehicle matching,selection of the vacuum booster,the performance parameter determination in the vehicle,strength check of the vacuum booster key parts,and layout of the vacuum booster.It filled in the blank about the design matching technology research on vehicle in the automotive industry.These studies contribute to meet a large number of light vehicle customers' demands for the use and enhance the level of vehicle performance.