基于单片电子油门检测系统的思路.doc

天津职业技术师范大学Tianjin University of Technology and Education 毕 业 论 文专 业: 班级学号: 学生姓名: 指导教师: 二〇一四年六月天津职业技术师范大学本科生毕业论文基于单片机的检测系统的设计Design microcontroller-based electronic throttle detection system 专业班级:学生姓名:指导教师:学 院:2014 年 6 月 摘 要论文的内容是基于单片机MSP430F149电子油门检测系统的设计,主要是根据电子油门的特性,将电子油门检测系统和MSP430F149单片机结合为一体,设计出一种基于MSP430F149单片机的电子油门检测系统,能够模拟的检测油门踏板的深度和发动机的转速论文简述了电子油门检测系统的构造及基本原理和单片机的原理及特性,对系统的设计进行了讨论,在能实现油门检测功能的基础上,设计出多种方案,通过多种方案对比,使用最佳的设计方案,把系统中各个模块统一在一起,模拟出一个电子油门检测系统,编写适合的程序,将油门踏板的位置通过显示屏显示出来,并通过pwm调速来控制直流电机的转速关键词:单片机;电子油门;MSP430F149;pwm调速 ABSTRACT The contents of this paper is about the design of MCU MSP430F149 based on electronic throttle detection system. It mainly use the characteristics of electronic throttle.It combine the electronic throttle detection systems and MSP430F149 in one design , And then design an electronic throttle detection system based on CU MSP430F149 .It can detect the depth of the accelerator pedal and the speed of the engine. The paper outlines the structure and the basic principles of electronic throttle detection system,it also outlines the principles and characteristics of the MCU.This paper conducts a discussion on the design of electronic throttle detection system.Then it puts forward the overall composition of the system on this basis of achieving throttle detection.By comparing a variety of programs, the paper finally gets an optimal solution, and combines each module together of the system to simulate an electronic throttle detection system.At the same time it not only prepares for the procedure,but also display the position of the accelerator pedal .The speed of DC motor is controled by PWM. Keywords:MCU;Electronic throttle;MSP430F149;PWM speed  1 绪 论 5 1.1 引言 6 1.2 国内外电子油门的发展现状 6 1.3 本文研究的意义 6 1.4 本文研究的主要内容 7 2 电子油门检测系统 7 2.1电子油门的由来及发展过程 7 2.2电子油门检测系统的基本结构 9 2.3电子油门检测系统的工作原理 10 2.4本章小结 10 3 硬件总体设计 11 3.1设计方案 11 3.2单片机模块 12 3.2.1单片机的选择 12 3.2.2单片机的最小系统 14 3.3液晶显示模块 15 3.3.1液晶显示屏的选择 15 3.3.2液晶显示模块电路设