摘要：汽车的安全问题历来备受大众关注，电子驻车系统也逐渐完善。驻车系统中制动系统和放大器有着重要的作用。放大器可以将力放大或提高刹车的快速性。放大器系统有固定的传动比，其性能只能单方面的满足要求。变杠杆式比例放大器的传动比的变化需达到1.1～1.8，同时满足刹车的及时性和有效性。根据变杠比例放大器的要求，提出几种方案假设，通过比较后确定总体方案。然后根据总体方案进一步设计确定整体的结构、零件的尺寸大小和各部分之间的装配关系。按强度刚度要求来校核各零件的强度刚度，再进行刹车过程中的力分析，从而确保零件符合要求。最终通过画图工具绘制出各零件的二维、三维图，完成变杠杆比例放大器的设计。63547

关键词  电子驻车系统  变杠杆式比例放大器  及时性  效率性

毕业设计说明书（毕业论文）外文摘要

Title Electronic parking system variable leverage ratio amplifier design

Abstract

Car safety problem has always been public concern , the electronic parking system has gradually improved. The parking brake system and the amplifier system has an important role. Power amplifier can be enlarged or increased the rapid braking . Amplifier system has a fixed transmission ratio , the performance can meet the requirements unilateral . Leveraged proportional amplifier Variable gear ratio changes required to achieve 1.1 to 1.8 , while meeting the timeliness and effectiveness of the brakes.Based on the requirements change bars proportional amplifier presented several scenarios assumptions determined by comparing the overall program after.Then according to the overall plan further designed to determine the overall structure and size of parts and assembly relationships between the various parts.Press the strength stiffness requirements to check the strength of the stiffness of each part,and then the force of braking process so as to ensure parts meet the requirements.Drawing tools to draw out the final adoption of the parts of the two-dimensional,three-dimensional map ， complete variable leverage ratio amplifier design.

Keywords  Electronic parking system becomes leveraged timeliness proportional amplifier efficiency

目   次

1.绪论 1

1.1课题研究背景 1

1.2电子驻车制动系统发展现状 1

1.3电子驻车制动系统未来研究方向 2

1.4电子驻车制动系统的优点 2

1.5课题的研究意义 3

1.6课题的主要内容 3

2. 电子驻车系统的结构 3

2.1EPB的组成 3

2.2电子驻车制动系统结构 4

2.3工作原理 5

2.4电子驻车制动系统执行机构总体设计要求 5

2.5运动转化装置的分析 6

2.6现有电子驻车制动的放大传动机构 6

2.7放大器的结构 8

2.8本章小结 9

3.方案分析设计 9

3.1设计内容及要求 9

3.2设计分析 9

3.3方案比较 11

3.4设计的调整