Hydraulic Vehicle Brake Computer-aided Design Technology

Under the background of the research work-"Expert System of Hydraulic Brake System Design for Saloon Car, Small and Medium Passenger Car " for Nanjing Yuejin Automobile Group, in this paper, a set of special CAD software for vihicle brake was developed in which the researchful object was brake, .the CAD supporting software was Pro/ENGINEER and the developing language was VB. The project of discreted brake was raised and 3D graphic parametric library of typical parts and assemblies was established. 3D solid modeling and parameter-driven between dimensions and relations were accomplished using Pro/ENGINEER. The graphic library system take parametric graphic library reference and management, has a open expansion interface. Pro/TOOLKIT-the further developing modules of Pro/ENGINEER-was studied and the question of customizing the procedure interface at the synchronous mode was resolved and the communication with Pro/ENGINEER was completed. The parametric design software for the typical brake parts and assemblies was complied which was integrated into Pro/ENGINEER. The mathematical model of trigging process was established, the trigging equation was reasoned and interrelated solution was given and the numerical simulation analytical procedure of brake was compiled. The design database for brake was built.