LS400电控悬架实验台的设计

摘要

随着人们对汽车驾驶的操纵性和乘客乘坐舒适性要求越来越高，以及电子技术的日渐成熟，现代汽车悬架系统也将其技术大量应用于其中，使悬架不同的路面和行驶状态作出不同反应是电子控制悬架系统的最大优点。乘坐舒适性达到令人满意的状态是人们对现代汽车的基本要求，而对于驾驶者来说，汽车的操纵稳定性则显得尤为重要。丰田凌志lS400的电控悬架系统采用的是目前最先进的主动式空气弹簧悬架，在不同的行驶状况下(路况)自动控制弹簧刚度、减振器阻尼力和车高，以达到抑制加速时后坐、制动时点头、转向时侧倾等汽车行驶状态的实时变化，从车身的稳定性能方面来改善乘坐的舒适性和驾驶者的操纵的稳定性。现代汽车教育行业发展迅猛，传统的修理厂师徒制的教授已经不能满足我国目前汽车修理行业的发展，汽车悬架实验台的设计已经迫在眉睫，为配合汽车维修教育、培训以及研究需求所设计了本次的实验台架，对凌志LS400电控悬架的工作原理，传感器、执行器的故障分析给出直观的表现，不论对于初次学习汽车悬架的在校学生还是有经验维修企业员工都有非常直接有效的帮助，实验台结构合理并尽可能的考虑汽车教学实际要求，主要由悬架系统等实物组成，并配置了多功能控制柜/显示柜，目的是为了适应教学要求。

凌志LS400电控悬架系统的结构组成在设计说明书进行了最为基本的讲解，对LS400电控悬架系统的基本控制原理进行了逐一分析，凌志LS400电控悬架系统实验台的总体设计方案是此设计说明书的最主要也是最核心的内容。计划方案包罗实验台台架的设计，实验台面板的设计、实验台面板控制图的设计、故障点的设计等。最后，还对实验台的使用和操作过程做了介绍。

关键词：凌志LS400 电控悬架 实验台架 空气弹簧主动悬架

ABSTRACT

Along with the people to the vehicle's handling and riding comfortability requirements more and more high, and electronic technology, the modern automobile suspension system will also be the technology has been applied to the suspension, the different road and driving conditions make different reaction is the biggest advantage of electronic control suspension system. The ride comfort of a satisfactory state is one of the basic requirements for modern car, the driver, the vehicle handling stability is the most important. Electronic controlle. Electronic controlled suspension system Toyota Lexus lS400 is active air spring suspension is currently the most advanced, in different driving conditions (Lu Kuang) spring stiffness, damping force and high automatic control, to achieve the real-time change of acceleration, braking recoil suppression nod, steering roll of the driving state of the vehicle handling and stability, from the aspects of the body stability to improve ride comfort and driver. The modern automobile education industry is developing rapidly, the traditional repair factory mentoring professor has been unable to meet the development of our country's current auto repair industry, design of automotive suspension test rig has been imminent, with auto repair education, training and research needs of the design of the experimental platform for this time, the work principle of Lexus LS400 control suspension analysis, gives an intuitive display fault sensor, execution, regardless of the initial study of automobile suspension students or staff experience repair enterprises are very direct and effective help, experiment table structure is reasonable and possible given the car the practical requirements of teaching, mainly by the suspension system and other physical composition, and the configuration of the multi function control cabinet / display cabinet, the purpose is to adapt to the requirements of teaching.

凌志LS400电控悬架系统的结构组成在设计说明书进行了最为基本的讲解，对LS400电控悬架系统的基本控制原理进行了逐一分析，凌志LS400电控悬架系统实验台的总体设计方案是此设计说明书的最主要也是最核心的内容。设计方案包括实验台台架的设计，实验台面板的设计、实验台面板控制图的设计、故障点的设计等。 最后，还对实验台的使用和操作过程做了介绍。

The structure of LS400 electronic control suspension system Lexus composition in design specification is the most basic explanation, the basic control principle of LS400 electronic control suspension system are analyzed one by one, the overall design scheme of the Lexus LS400 electronic control suspension system experiment platform is the design specification of the main and the most core content. Design includes the design of the experimental bench, bench panel design, experimental platform panel control chart design, fault point design etc.. Finally, the experimental platform for the use and operation process are discussed.

Key Words：The Lexus LS400；electronic control suspension；test bench；of air spring suspension

目录

1绪论1

1.1国内外的发展现状及发展趋势1

1.2设计制作的目的和任务1

1.3设计制作的主要工作2

2凌志LS400电控悬架系统的结构与工作原理3

2.1电控悬架的基本组成3

2.2控制原理4

2.2.1车身高度控制4

2.2.2弹簧刚度和减振阻尼力控制9

2.3系统电路图9

3电控悬架系统实验台的总体设计方案10

3.1实验台架的设计10

3.2实验台动力源和负载的选择11

3.2.1实验台动力源的选择11

3.2.2如何选取实验台的负载11

4实验台的面板设计11

4.1主显示面板的总体布置11

4.2实验台面板电路图的设计13

4.3故障点设计13

4.4故障点分析14

4.5电控悬架各种路面传感器控制状态参考表15

4.6故障开关的设计16

4.7故障诊断16

结论20

参考文献21

致谢23