基于51单片机的汽车小型直流电机调速系统设计  

Design of Speed Control System for Small DC Motor for Automobile Based on 51 SCM

作　　者：花建新 HUA Jianxin(Branch of Suzhou Construction&Communications,Jiangsu Union Technical Institute,Suzhou 215000,China)

机构地区：[1]江苏联合职业技术学院、苏州建设交通分院,江苏苏州215000

出　　处：《汽车电器》2023年第9期52-55,57,共5页Auto Electric Parts

摘　　要：小型直流电机作为一种响应快、控制方便的执行器,目前已广泛应用于汽车仪表、空调、动力转向、玻璃升降、电动座椅等汽车控制系统中。本文采用宏晶科技的51单片机STC89C52RC作为主控芯片,选择ULN2003作为电机的驱动芯片,设计具有独立按键的按键电路来控制电机的加速、减速,设计8位数码管电路来显示电机速度的挡位,并利用Keil 5集成开发环境进行C语言软件编程设计,通过脉宽调制(PWM)信号来实现电机速度1~18挡的控制。验证结果表明,本设计能够有效实现汽车小型直流电机的多挡调速,达到设计预期。As an actuator with fast response and convenient control,small DC motor has been widely used in automobile control systems such as automobile instrument,air conditioner,power steering,glass lifter,electric seat,etc.In this paper,STC89C52RC,a 51 SCM of STC Company,is used as the main control chip,ULN2003 is selected as the motor drive chip,and a key circuit with independent keys is designed to control the acceleration and deceleration of the motor,and an 8-bit LED circuit is designed to display the speed gear of the motor.The C language software is programmed using Keil 5 integrated development environment,and the motor speed is controlled from 1 to 18 gears through PWM signal.The verification results show that the design can effectively achieve multi speed regulation of small DC motor,and achieve the design expectations.

关 键 词：51单片机 小型直流电机 PWM 调速系统 KEIL软件 

分 类 号：U463.6[机械工程—车辆工程]