基于CAN總線電動汽車驅(qū)動系統(tǒng)設(shè)計（本科畢業(yè)論文設(shè)計）
摘要

隨著汽車保有量的不斷增加，環(huán)境污染和石油資源匱乏日益顯著，電動汽車因其具有綠色環(huán)保和能源利用效率高等優(yōu)點，引起世界各國的廣泛關(guān)注。電力驅(qū)動技術(shù)是制約電動汽車發(fā)展的三大關(guān)鍵技術(shù)之一，因而研究電動汽車驅(qū)動控制系統(tǒng)具有重要意義。
這篇論文所提出的基于CAN電動汽車驅(qū)動系統(tǒng)設(shè)計，通過分析電動汽車對電驅(qū)動系統(tǒng)性能的要求，對電驅(qū)動系統(tǒng)進(jìn)行總體設(shè)計。根據(jù)電動汽車對電驅(qū)動系統(tǒng)的高速實時性要求和通過對電機和控制技術(shù)的分析，選用永磁直流電機作為電機驅(qū)動系統(tǒng)的電機。在此基礎(chǔ)上，通過對電機運行特性的分析和電機驅(qū)動控制系統(tǒng)方案的比較，確定電機電流的閉環(huán)控制策略，采用PWM脈寬調(diào)制技術(shù)[1]通過CAN及其控制器來達(dá)到對電機驅(qū)動系統(tǒng)的控制。
在CAN總線的軟件和硬件的設(shè)計上，從硬件和軟件兩個方面探究了電機驅(qū)動系統(tǒng)控制器的設(shè)計。硬件設(shè)計主要包括提出了基于LPC2119的控制器[2]硬件設(shè)計的總體方案，主控制回路功率器件和保護電路的設(shè)計；在CAN總線節(jié)點設(shè)計上采用LPC2119控制器和TJA1050收發(fā)器來進(jìn)行設(shè)計[3],其包括LPC2119控制器進(jìn)行節(jié)點初始化、CAN總線報文發(fā)送子程序、CAN總線報文接收子程序。


關(guān)鍵詞：CAN總線，電動汽車，LPC2119控制器，TJA1050收發(fā)器，PWM脈寬調(diào)制

Abstract

Along with the continuously increase of the automobile retention, the pollution of the environment and the shortage of petroleum resources were increasingly serious. Because of green environment protection and efficiently utilize energy, the electric vehicle (EV) was pain more attention by all over the world. Electric power is drive technique was one of EV, so the studying of the motor drive control system of EV has important significance.
This paper proposed the design of electric vehicle drive system is based on CAN-bus, through analyzing the performance requirement of the motor drive system applied to the EV, the design of the motor drive system is represented. For meeting the requirement of the high speed 、stabilization、real-time for motor drive system applied to the EV and through the analysis of EV is motor and control techniques ，We selected a permanent magnet DC motor as the electrical motor drive system .based on this, through the analysis of permanence magnet DC motor work characteristic and through the comparison of motor drive control method, the motor-driven control system was controlled by PWM through the CAN-bus.
The design of the software and hardware on the CAN-bus, the design of motor drive controller was studied by this paper, the design of hardware mainly contained: the total design project of hardware based on the LPC2119, the design of main control loop, motor current feedback circuit. The design of software include：On the CAN-bus, LPC2119 controller nodes initialization, CAN bus sent subroutine, CAN bus routines and receive CAN bus Exceptions interrupt procedures.


The key words：CAN-bus, Electric Vehicles, LPC2119 Controller, TJA1050 Transceiver, PWM

目 錄

摘要 I
Abstract II
目 錄 III
第一章 緒論 1
1.1 本課題研究的目的和意義 1
1.2 CAN總線概述 1
1.2.1 CAN總線技術(shù)規(guī)范 1
1.2.2 CAN的基本概念 2
1.2.3 CAN總線的分層結(jié)構(gòu) 2
1.2.4 CAN通信協(xié)議物理結(jié)構(gòu) 3
1.2.5 幀結(jié)構(gòu)和報文傳送 5
1.3 電動汽車在國內(nèi)外發(fā)展現(xiàn)狀和趨勢 7
1.3.1國外主要國家電動汽車發(fā)展?fàn)顩r 7
1.3.2我國電動汽車發(fā)展情況 8
1.4 電動汽車的缺點及發(fā)展趨勢 8
1.4.1 電動汽車基本結(jié)構(gòu) 8
1.4.2 電動汽車的缺點 8
1.4.3電動汽車發(fā)展趨勢 9
1.5本論文研究的主要內(nèi)容 9
第二章 電動汽車驅(qū)動系統(tǒng)設(shè)計 10
2.1電驅(qū)動控制系統(tǒng)概述 10
2.2電動汽車驅(qū)動系統(tǒng)特點 10
2.2.1 電動汽車特點 10
2.2.2 電驅(qū)動系統(tǒng)的組成及特點 10
2.2.3 電動汽車對電驅(qū)動系統(tǒng)的要求 11
2.2.4 電動汽車驅(qū)動電機與工業(yè)驅(qū)動電機的比較 11
2.3驅(qū)動系統(tǒng)的總體設(shè)計 12
2.3.1電動汽車驅(qū)動系統(tǒng)總體設(shè)計方案 12
2.3.2 電機選擇 13
2.3.3 電驅(qū)動控制器硬件的總體設(shè)計思想 13
2.3.4 電驅(qū)動系統(tǒng)電路硬件設(shè)計 14
2.3.5 控制回路的設(shè)計 16
2.3.6 電源部分設(shè)計 17
2.3.7 IGBT驅(qū)動電路 17
2.3.8 過流保護電路設(shè)計 17
2.4 驅(qū)動電路仿真實驗 18
第三章CAN總線智能節(jié)點設(shè)計 21
3.1 CAN智能節(jié)點硬件電路設(shè)計 21
3.2 CAN總線智能節(jié)點軟件設(shè)計 22
3.2.1 CAN控制器的初始化 22
3.2.2 CAN報文的接收 22
3.2.3 CAN報文的發(fā)送 23
3.2.3 CAN總線程序清單………………………………………………………………24
第四章 結(jié) 論 28
致 謝 29
參考文獻(xiàn) 30