汽车制动系统真空助力制动总成.doc

汽车制动系统真空助力制动总成 测试试验台设计 摘要 真空助力器和制动主缸是现代汽车液压制动系统的重要组成部件。合格的真空助力器和制动主缸是汽车行车安全的保障。各国均制定了标准对其性能进行规定。 本文在分析汽车真空助力器和制动主缸的原理的基础上，研制出一台汽车真空助力器制动系统总成测试试验台，它能完成中华人民共和国行业标准中规定的全部测试项目和部分企业标准中规定的测试项目。 该试验台的研制成功将为真空助力器制动系统总成性能的试验、检测提供了手段，通过对密封性、反应时间、释放时间、输入—输出特性等测试数据的分析，能够提高真空助力器、制动主缸的生产质量。 本文提出了汽车真空助力器制动系统总成的综合测试项目采用机电气液一体化的原理方法，研制出了总成综合性能测试系统，详细论述了测试系统各组成部分，并对部分结构和组件进行计算。该系统测试方法合理，功能齐全，测试结果准确可靠。 关键词　真空助力器；制动主缸；结构设计；测试装置；试验台 ?????????????????????????????????????????????????????????????????? ???????? Vacuum strengthener and brake master cylinder are important parts in Hydraulic brake system of modern cars. Eligible vacuum strengthener and brake master cylinder are a guarantee for traveling safety. Every country establishes a standard to prescribe their capability. An automobile vacuum strengthener and brake master cylinders test-table is developed in this paper, based on analyzing structure and theory of automobile vacuum strengthener and brake master cylinder. It can finish all the test items specified in the Peoples Republic of China Industry Standard and some test items specified in the enterprise standard. The successful development of this test board not only offers means of testing and experimenting vacuum strengthener and brake master cylinder, but also improves the quality of vacuum strengthener and brake master cylinder, according to analyzing the date of feedback time , release time, encapsulation and the characteristic of input-output. According to the technical condition and testing approach of vacuum strengthener with brake master cylinder, the test equipment and the control system for the performance were designed, moreover it was made calculation of some structure and subassembly The each composition and its function were introduced in detail. Keywords： Vacuum Strengthener; Brake Master Cylinder; Configuration Design; Testing Device; Test-bed 不要删除行尾的分节符，此行不会被打印目录 摘要 I Abstract II 第1章 绪论 1 1.1 课题背景 1 1.1.1 汽车制动系统的历史 1 1.1.2 我国汽车制动系统现状 4 1.1.3 测试技术现状 6