设计简介
摘 要
近年来,国内汽车市场发展迅速,而轿车则是汽车未来发展的方向。然而随着汽车保有量的增加,所带来的一系列安全问题引起人们的注意,而汽车的制动系统则是汽车行驶的一个重要主动安全系统之一。其性能的好坏直接影响着汽车的行驶安全,因此,高性能制动系统的研究开发,为安全行驶提供保障是我们要解决的主要问题。另外,随着汽车市场竞争的加剧,如何缩短产品研发周期、提高生产效率、降低成本等,提高产品市场竞争力,已成为企业成功的关键。
本说明书是汽车制动系统的设计。首先介绍了汽车制动系统的发展、结构、分类,并通过对鼓式制动器和盘式制动器的结构及优缺点进行分析。最终确定方案采用液压双回路前盘后鼓式制动器。除此之外,还介绍了前后制动器、制动主缸的设计计算,主要部件的参数选择及制动管路布置形式等的设计过程。
关键字:制动;鼓式制动器;盘式制动器;液压
Abstract
In recent years, the domestic automobile market is growing rapidly, and the car is in the direction of the automotive future development. With the increase of car ownership, however, brought about by a series of security issues attract attention, the car's braking system is one of the vehicle driving is an important active safety systems. Whose performance directly affects the safety of car driving, high-performance braking system research and development, provide protection for safe driving we have to solve the problem. In addition, as the auto market competition intensifies, how to shorten the product development cycle, increase productivity, reduce costs, improve market competitiveness has become a key to business success.
This manual is car braking system design. First introduced the development of automotive braking systems, structure, classification, and to analyze the structure and the advantages and disadvantages of drum brakes and disc brakes. Finalized program Qianpanhougu brake hydraulic double-loop. In addition, the front and rear brakes, brake master cylinder design calculations, the major components of the parameter selection and arrangement of the brake pipe of the design process.
Key words: braking; brake drum; brake disc; hydroid pressure
近年来,国内汽车市场发展迅速,而轿车则是汽车未来发展的方向。然而随着汽车保有量的增加,所带来的一系列安全问题引起人们的注意,而汽车的制动系统则是汽车行驶的一个重要主动安全系统之一。其性能的好坏直接影响着汽车的行驶安全,因此,高性能制动系统的研究开发,为安全行驶提供保障是我们要解决的主要问题。另外,随着汽车市场竞争的加剧,如何缩短产品研发周期、提高生产效率、降低成本等,提高产品市场竞争力,已成为企业成功的关键。
本说明书是汽车制动系统的设计。首先介绍了汽车制动系统的发展、结构、分类,并通过对鼓式制动器和盘式制动器的结构及优缺点进行分析。最终确定方案采用液压双回路前盘后鼓式制动器。除此之外,还介绍了前后制动器、制动主缸的设计计算,主要部件的参数选择及制动管路布置形式等的设计过程。
关键字:制动;鼓式制动器;盘式制动器;液压
Abstract
In recent years, the domestic automobile market is growing rapidly, and the car is in the direction of the automotive future development. With the increase of car ownership, however, brought about by a series of security issues attract attention, the car's braking system is one of the vehicle driving is an important active safety systems. Whose performance directly affects the safety of car driving, high-performance braking system research and development, provide protection for safe driving we have to solve the problem. In addition, as the auto market competition intensifies, how to shorten the product development cycle, increase productivity, reduce costs, improve market competitiveness has become a key to business success.
This manual is car braking system design. First introduced the development of automotive braking systems, structure, classification, and to analyze the structure and the advantages and disadvantages of drum brakes and disc brakes. Finalized program Qianpanhougu brake hydraulic double-loop. In addition, the front and rear brakes, brake master cylinder design calculations, the major components of the parameter selection and arrangement of the brake pipe of the design process.
Key words: braking; brake drum; brake disc; hydroid pressure
目录
第1章 绪论 1
1.1 制动系统设计的意义 1
1.2 制动系统研究现状 1
1.3 本次制动系统应达到的目标 2
1.4 本次制动系统设计要求 2
第2章 制动系统方案论证分析与选择 3
2.1 制动器形式方案分析 3
2.1.1 鼓式制动器 3
2.1.2 盘式制动器 6
2.2 制动驱动机构的结构形式选择 8
2.2.1 简单制动系 8
2.2.2 动力制动系 9
2.2.3 伺服制动系 10
2.3 液压分路系统的形式的选择 10
2.3.1 II型回路 11
2.3.2 X型回路 11
2.3.3 其他类型回路 12
2.4 液压制动主缸的设计方案 12
第3章 制动系统设计计算 14
3.1 制动系统主要参数数值 14
3.1.1 相关主要技术参数 14
3.1.2 同步附着系数的分析 15
3.2 制动器有关计算 15
3.2.1 确定前后轴制动力矩分配系数β 15
3.2.2 制动器制动力矩的确定 16
3.2.3 后轮制动器的结构参数与摩擦系数的选取 16
3.2.4 前轮盘式制动器主要参数确定 18
3.3 制动器制动因数计算 19
3.3.1 前轮盘式制动效能因数 19
3.3.2 后轮鼓式制动器效能因数 19
3.4 制动器主要零部件的结构设计 20
第4章 液压制动驱动机构的设计计算 24
4.1 后轮制动轮缸直径与工作容积的设计计算 24
4.2 前轮盘式制动器液压驱动机构计算 25
4.3 制动主缸与工作容积设计计算 26
4.4 制动踏板力与踏板行程 27
4.4.1 制动踏板力 27
4.4.2 制动踏板工作行程 28
第5章 制动性能分析 29
5.1 制动性能评价指标 29
5.2 制动效能 29
5.3 制动效能的恒定性 29
5.4 制动时汽车的方向稳定性 29
5.5 制动器制动力分配曲线分析 30
5.6 制动距离S 33
5.7 摩擦衬片(衬块)的磨损特性计算 33
5.8 驻车制动计算 35
第6章 总 论 37
参考文献 39