基于ME7.9.7发动机管理系统故障实训车的设计

发布时间：2018-01-07 11:36

本文关键词：基于ME7.9.7发动机管理系统故障实训车的设计　出处：《吉林大学》2012年硕士论文　论文类型：学位论文

【摘要】：随着高等职业教育专业课程的不断改革，“教学做”一体化的教学模式一直作为高等职业院校研究的重点内容，如何真正的实现“教学做”一体化也成为高等职业院校重点要解决的问题。为了解决这些问题，很多高职院校在硬件上进行了大量的投入，于是五花八门的实训台被应用于教学。通过这些实训台的使用，解决了“教学做”一体化的问题，但也出现了新的问题。很多学生在实训台上面会操作、会检测、会诊断，一到实际的车辆上就抓不住头脑，不知所措。面对这个问题，本人认为，实训台的开发和研制不能破坏车辆原有的特征，虽然将发动机固定在台架上，并在控制面板上接出来很多端口，操作是方便了，但是附加的太多线束改变了电控系统的很多参数，造成实训台与实际车辆之间出现了数据误差，容易误导学生。学生在实训台上学会了检测端口检测，但在车辆上却不知道应如何进行，甚至很多学生不清楚各元件的安装位置，造成学习效果差。针对以上种种问题，为了使“教学做”一体化教学模式的高效运行，本人结合多年的教学与维修经验，设计了这款基于ME7.9.7发动机管理系统的故障实训车。该实训车的设计与研究基于目前市场上较先进的带电子节气门的电控平台进行，该平台在市场上装车量较多，控制系统与诊断系统较为先进。本设计打破传统实训台设计模式，以奇瑞A3车型为基础，在A3车上进行设计和改造，通过在电控系统的输入元件和输出元件上加装控制元件，对输入电控系统ECU的数据与ECU输出的数据进行干预。设计中在传感器上设计开关电路来控制传感器各线束与电源线或搭铁线之间断路或短路设置。在执行器上设计开关电路来控制执行器各线束与电源线或搭铁线之间断路或短路设置。在各线束上设计诊断接口，以便于学生读取数据或利用信号发生器来实现无故障码故障的设置。通过这些设计来控制车辆产生预期的故障代码，形成预期的故障现象。本文对实训车电控系统中涉及的各输入元件和输出元件的安装位置、作用及原理进行了分析；对元件电路设计与使用方法进行了阐述；对实训车的调试进行了总结和验证。通过该实训车的设计与使用证明，该实训车操作简单，，实用性强，能够设置市场上搭载该电控系统的所有车型的所有故障；该实训车能够实现所有数据的动态检测；能够模拟真实环境下所发生的故障现象；能够满足“教学做”一体化教学模式的需要，实现了学习与工作的有效对接。
[Abstract]:With the continuous reform of specialized courses in higher occupation education, the teaching integration teaching mode has been used as the key research content of higher occupation colleges, how to realize the teaching integration has become the focus of higher occupation colleges to solve the problem. In order to solve these problems, many higher vocational colleges have done a lot of investment in hardware so, all kinds of training was used in teaching. By using these training table, resolved the problem of "integration of teaching, but also the emergence of new problems. Many students in the training table above operation, will be a detection, diagnosis, to the actual vehicle could not hold the mind at a loss. In the face of this problem, I think that the development of the training table cannot destroy the vehicle original features, although the engine fixed on the rack, and then in the control panel. Many ports, operation is convenient, but too much additional harness changed a lot of electronic control system caused by the parameters, data error between the training and the actual vehicle, easy to mislead the students. Students learn how to detect port detection on the training table, but on the vehicle but do not know how to, even a lot of students clear the installation position of each element, resulting in poor learning.
To solve the above problems, in order to make the "teaching" the efficient operation of the integrated teaching mode of teaching, I combined with years of experience in maintenance, designed the car engine fault training management system based on ME7.9.7. The design and research of the training car based on the advanced solar term door with electronic electronic control platform on the market. Many in the market on vehicle platform, control system and fault diagnosis system is advanced. This design breaks the traditional design mode of training in Taiwan, the Chery A3 models based on A3, design and transformation of the car, through an input member and an output member in the electric control system is additionally arranged on the control element, and the output of the input control data ECU the ECU system data to intervene. In the design of the sensor design of switch circuit to control the sensor harness and power line or a circuit or short circuit between the wire to set. Is on the design of switch circuit to control the actuator and the wire harness power line or a circuit or short circuit between the wire set. In the design of diagnostic interface harness, to facilitate the students to read the data or by signal generator to achieve no code breakdown settings. Through these design to control the vehicle fault code is expected, the formation of the fault phenomena expected.
The installation position of the electric control system of the car involved in the training of the input element and the output element, function and principle are analyzed; the components of the circuit design and method are described; debugging of training vehicle are summarized and verified. Through the design of training and car use, the training vehicle has the advantages of simple operation, strong practicability, can set the market all the fault of electronic control system of the vehicle equipped with all the training; vehicle can realize dynamic detection of all data; to simulate the failure phenomenon occurs in real environment; to meet the needs of the integration of "teaching" teaching mode, to achieve effective docking study and work.

【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：G718.5;U472-4

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