基于LIN通信的汽车电动车窗控制系统研究

发布时间：2018-04-14 02:05

本文选题：LIN总线 + 电动车窗控制系统　；参考：《中原工学院》2016年硕士论文

【摘要】：随着电子技术与汽车工业的迅速发展,汽车电子配置正朝着模块化、智能化的方向发展。传统的控制技术已不适应当前电子模块日益的增多的趋势,总线技术应运而生。LIN总线作为CAN总线的补充,以其实现方法简单、成本价格低廉的优势,在车身网络控制中得到了广泛应用。电动车窗在汽车产业中已成为标准配置,目前市场上常用的技术各有优劣,质量也参差不齐。本文以Freescale的MC9S08SG16和SG08芯片分别作为主门和副门节点的微控制器,基于LIN通信网络和车门识别技术设计开发了电动车窗控制系统的硬件电路和软件算法。本文首先对LIN总线协议进行了详细的分析研究,分析了其报文传输的机制以及LIN API的实现方法,制定出了LIN协议的报文内容;然后综合考虑成本和性能因素对主控芯片进行选型;设计了控制系统的硬件电路;在此基础上,对车门识别和电机堵转保护等关键技术开展了深入研究;在CodeWarrior编译环境中,运用模块化的方法对控制算法进行软件编程,设计完成了基于LIN通信的汽车电动车窗控制系统;之后用MATLAB/Simulink对所设计的控制系统算法进行建模仿真,用Target-Link软件对模型进行自动代码生成;最后针对实际生产过程中产品检测流程复杂、操作繁琐的缺点,本文设计开发了四门电动车窗控制器的检测平台,该平台的液晶系统能实时显示电动车窗的上升、下降、堵转电流和环境温度等参数。实车测试结果表明,驾驶员节点和副门节点控制效果良好,性能可靠稳定,具有较强的实际应用价值,值得推广使用。
[Abstract]:With the rapid development of electronic technology and automobile industry, automobile electronic configuration is developing towards modularization and intelligence.The traditional control technology has been unable to adapt to the increasing trend of electronic modules at present. The bus technology emerges as the supplement of CAN bus, because of its simple realization method and low cost, the bus technology comes into being as a supplement to the CAN bus.It is widely used in body network control.The electric window has become the standard configuration in the automobile industry. At present, the common technology in the market has its own merits and demerits, and the quality is not uniform.In this paper, the MC9S08SG16 and SG08 chips of Freescale are used as the microcontrollers of the main gate and the secondary gate respectively. Based on the LIN communication network and the door recognition technology, the hardware circuit and software algorithm of the electric window control system are designed and developed.In this paper, the LIN bus protocol is analyzed in detail, the mechanism of its message transmission and the realization method of LIN API are analyzed, and the message content of LIN protocol is worked out.Then considering the cost and performance factors, the main control chip is selected; the hardware circuit of the control system is designed; on the basis of this, the key technologies such as door identification and motor shutoff protection are studied deeply. In the CodeWarrior compiling environment,The control algorithm is programmed by modularization method, and the vehicle electric window control system based on LIN communication is designed, and then the control system algorithm is modeled and simulated by MATLAB/Simulink.The model is generated automatically by using Target-Link software. Finally, aiming at the defects of complex detection process and cumbersome operation in the actual production process, this paper designs and develops a testing platform for four-door electric window controller.The liquid crystal system of the platform can display the parameters such as the rising and falling of the electric windows, the blocking current and the ambient temperature in real time.The test results show that the control effect of the driver node and the auxiliary door node is good, the performance is reliable and stable, and it has strong practical application value, which is worth popularizing.
【学位授予单位】：中原工学院
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U463.6

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