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Automotive braking system design and performance simulation software development

Author: TangShouPeng
Tutor: WuYongGen
School: Yantai University
Course: Mechanical Manufacturing and Automation
Keywords: Automotive Brake System Integrated Design Method Software Performance Simulation Database calls
CLC: U463.5
Type: Master's thesis
Year: 2009
Downloads: 251
Quote: 1
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Abstract

Security is critical of the braking system of the vehicle, so the countries of its design performance requirements are very strict. The braking system constituted by a plurality of different functions of the member, each member is composed by a variety of optional type and parameters of components designed. Therefore, design and parameters selection program to achieve the target of the same models a lot, it is difficult to judge the merits of by means other than test. To this end, this group proposed the concept of a \Its ultimate purpose is programming algorithm to predict the performance of the design of the user program, reducing the finished test; saving production costs and speed development. Practice of in-depth study found: a lot of user performance data projection purposes in addition to the inspection program standards, in order to get the optimal parameters of the design of the braking system of the new models. The correct design ideas is necessary to guarantee the legal accuracy of the parameters computed data. Therefore, the software must seek the optimized design steps of a braking system as the software performs the operation. That, on the basis of the assessment of design performance simulation, the software also has to assist the user in the design of the braking system function. This article were done research and development work as follows: (1) investigation of various design ideas of the brake system manufacturer to optimize the development of a more suitable software program specification vehicle braking system sequence design method. Mainly include: ① The basic parameters of vehicles and the scope of the coordinate system of the braking force to generate a scope S; ② to generate braking performance braking force growth line method for different domain S; ③ according to the shape of the growth line design system the various components of the drive train or call components from the database; (4) the braking process of phasing and performance calculation method. (2) the establishment of the time variable associated factor, can accurately reflect the various components of the braking system design parameters of the mathematical model of the effect of the braking performance formula. And take advantage of the the VC technology this formula made from a combination of these design steps run sequentially friendly interface program. (3) is planning to build four independent design parameters associated database, including: ① The seven types of different vehicles braking system the typical overall design parameters; ② eight categories commonly used type of brake GB and non-standard design parameters; ③ master cylinder the GB design parameters; ④ are three commonly used servo system design parameters. The user can call all the design parameters of the vehicle's braking system similar to the target type, performance comparison and modify. In the design of new models, call a part of large-scale production of typical design parameters. Users can modify, and delete database outdated design parameters of the program, and also can be saved, add new parameters. (4) a combination of lark GHK7060 several models of test data to verify the reliability of the software. Through the research work of this paper the following conclusions: (1) design method theory correct perfect performance data analog projection accuracy sufficient condition. Based on the ideas in this article the most important of several indicators of value for signs of braking performance, optimized sequential steps of the design of the braking system; improve the quality of the design theory in order to achieve accurate predictive value. But with the development of science and technology, new indicators will be applied to the brake system testing standards; This article does not impact indicators of the brake lines fever. Should be based on this idea to develop a higher standard of design theory and program operator interface. (2) the development trend of the future vehicle braking system performance more robust parameter design computing more complicated refinement. The geometric curves reflects data performance better intuitive requirements deepening. Visualization using object-oriented program interface is the best way to solve these problems. (3) This selection of the access division of the multi-database building, increased data storage redundancy. (4) Based on program performance derivation method and based The knowledge database platform is an important part of the development of the automotive expert systems, automotive computer-aided manufacturing branch. The expansion and extension of this subject has a very broad space and market prospects.

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