連續(xù)調(diào)速方式空調(diào)系統(tǒng)頂置控制器

電氣工程論文編號:DQ195   論文字數(shù):8747,頁數(shù):35

目  錄

摘  要 II
Abstract III
1  緒  論 1
2  總體方案設(shè)計 2
2.1  系統(tǒng)總體結(jié)構(gòu) 2
2.2  系統(tǒng)硬件結(jié)構(gòu) 2
2.3  系統(tǒng)總體軟件結(jié)構(gòu) 3
3  客車空調(diào)系統(tǒng) 4
3.1  客車空調(diào)系統(tǒng)的組成 4
3.2  客車空調(diào)系統(tǒng)的工作原理 4
4  PIC18F2580單片機 5
4.1  PIC18F2580系統(tǒng)硬件概況 5
4.1.1  內(nèi)核及外圍模塊 5
4.1.2  內(nèi)核結(jié)構(gòu)的特點 6
4.1.3  中斷機制 6
4.2  EUSART通信模塊 7
4.3  定時器 8
4.4  模數(shù)轉(zhuǎn)換器模塊 9
4.5  ECAN模塊 10
5  硬件功能模塊及軟件介紹 11
5.1  主要硬件功能模塊簡介 11
5.1.1  復(fù)位電路 11
5.1.2  DC/DC變換功能芯片34063 11
5.1.3  MAX485芯片 13
5.1.4  PCA82C250芯片 14
5.2  軟件設(shè)計 15
5.2.1  系統(tǒng)控制要求 15
5.2.2  RS485通訊 16
5.2.3  CAN通訊 17
5.2.4  程序設(shè)計 18
5.2.5  風(fēng)機驅(qū)動器模擬軟件 25
6  系統(tǒng)的調(diào)試 26
6.1  硬件電路調(diào)試 26
6.2  軟件調(diào)試 26
6.3  系統(tǒng)的改進方向 26
7  總  結(jié) 27
致  謝 28
參考文獻 29
附錄  車頂控制器原理圖、PCB圖及實物圖 30

摘  要
 近年來，隨著私家車數(shù)量的急劇增加，道路擁擠狀況日益加劇，越來越多的人選擇城市公交客車作為他們的出行代步工具。城市公共交通在我國城市交通中占有重要的地位, 是同我國城市居民生產(chǎn)、生活等活動密切相關(guān)的系統(tǒng)，而客車的空調(diào)系統(tǒng)好壞直接關(guān)系到乘客在乘坐時的舒適性。隨著國內(nèi)客車行業(yè)的發(fā)展，對空調(diào)系統(tǒng)的要求日益提高。單片機控制技術(shù)在客車電子中的應(yīng)用日漸廣泛，它顯著提高了客車的智能化控制水平和安全性能。但是，目前客車空調(diào)大多還是以傳統(tǒng)式的預(yù)置式車用空調(diào)，與汽車工業(yè)的發(fā)展不相適宜。而此次設(shè)計的頂置控制器將采用高性價比單片機PIC，運用嵌入式智能控制和通信總線技術(shù)，同時擁有無級風(fēng)速變換、換新風(fēng)等功能，保證在各種外界氣候和條件下使乘客都處于一個舒適的空氣環(huán)境中，使駕駛員保持清晰的視野，為安全駕駛提供基本保證。
關(guān)鍵詞：PIC；總線技術(shù)；空調(diào)

Abstract
  In recent years, with the number of private cars increased dramatically and the increasing road congestion, more and more people select a city bus travel as their means of transport. Urban public transport in urban traffic in China plays an important role. And it also is the system that is closely related to China's urban residents with the production, life and other activities. The quality of the air-conditioning system is directly related to the passengers at the time of ride comfort. With the development of the domestic passenger car industry, the requirements for the air-conditioning systems increase. Single-chip bus electronic control technology in the increasingly wide range of applications, it significantly increased the level of intelligent control of passenger vehicles and safety performance. However, most of the current passenger car air-conditioning is pre-conventional car with air conditioning, and is not suitable for development of automotive industry. And the overhead of the controller design will be cost-effective single-chip PIC, the use of embedded intelligent control and communication bus technology, at the same time have the stepless speed change, replaced the wind and other functions, to ensure that the outside world in a variety of climate and conditions so that passengers are in a comfortable air environment, to enable the driver to maintain a clear field of vision, in order to provide the basic guarantee for safe driving.
Keywords：PIC; Bus-technology; Air-conditioning