电控悬架系统的结构控制原理与检修-(毕业论文)

摘要

电子技术与汽车技术的结合形成了一门新技术——汽车电子技术，随着汽车电子技术的日趋完善，时至今日，汽车电子化已达到相当高的程度。汽车电子技术已成为一个国家汽车工业发展的标志。汽车中悬架的作用是连接车身与车轮, 以适当的刚性支撑车轮, 并吸收路面的冲击, 改善车辆的舒适性和平顺性; 还可以稳定汽车行驶, 改善操纵性。悬架作用中的平顺性与操纵稳定性, 有着相互矛盾的联系。电子控制悬架在其电子控制装置的控制下, 能根据外界接受的信息或车辆本身状态的变化, 进行动态的自适性调节, 即电控悬架没有固定的悬架刚度和阻尼系数。这样可以随着道路条件的变化和行驶需要的不同要求而自动地调节, 从根本上解决平顺性和操纵稳定性之间的矛盾, 提高汽车的使用性能。本篇论文不仅对应用广泛的电子控制悬架系统的结构组成、工作原理进行了系统阐述，而且对其故障类型与产生原因进行分析，同时也运用案例对其诊断流程也作了详细的介绍。

关键词：电子控制，悬架系统，传感器，故障，诊断

Abstract

Electronic technology and the technique of car formed a new technology, automobile electronic technology, with the improvement of automobile electronic technology, today, the automobile electronic has reached quite high degree. Automobile electronic technology has become a symbol of the national auto industry development. Automobile suspension is the function of connection in the body and wheels, with proper rigidity supporting wheels, and absorb the impact of the pavement, improve the vehicle comfort peace obey; Also can stable the car, improve handling. Suspension effect of ride comfort and handling stability, have conflicting links. Electronic control suspension under the control of electronic control devices, can according to the outside world to accept the information or the change of the state of the vehicle itself, which can adjust the dynamic adaptive sex, namely electronic control suspension has no fixed suspension stiffness and damping coefficient. As the change of road conditions and driving with the requirement of the need to automatically adjust, fundamentally solve the contradiction between ride comfort and handling stability, improve the use performance of the car. This paper not only to the wide application of electronic control suspension system structure, working principle of the system is expounded, and the fault type and the causes were analyzed, and also use case also has made the detailed introduction of the diagnosis process

Keywords: electronic control, suspension system, sensor, fault, diagnosis

目录

摘要 ......................................................................................................................................................... I Abstract ................................................................................................................................................... II 1 电子控制悬架系统概述 (5)

1.1 电子控制悬架系统的背景和意义 (5)

1.2 电子控制悬架系统国内外的研究方向 (5)

1.3 电子控制悬架系统的种类 (6)

1.4 电子控制悬架系统的结构和工作原理 (6)

1.5 电子控制悬架系统的主要功能 (7)

2 电子控制悬架系统传感器 (8)

2.1 车身高度传感器 (8)

2.2 方向盘转角传感器 (8)

2.3 车速传感器 (9)

2.4 加速信号 (10)

2.5 车门信号 (10)

2.6 制动信号 (10)

2.7 悬架控制开关 (11)

3 电子控制悬架系统的电子控制模块 (12)

3.1 电控空气悬架系统电子控制模块（悬架ECU）功能 (12)

3.2 电控空气悬架系统电子控制模块（悬架ECU）的结构和工作原理 (12)

3.3 电控空气悬架系统执行器的工作原理及其功用 (13)

3.4 电控空气悬架系统执行器的分类 (14)

4 电子控制悬架系统故障诊断与排除 (15)

4.1 电子控制悬架系统故障诊断 (15)