基于单片机控制的自动往返小汽车新设计

Design of Automatically Back and Forth Electric Car Based on Single Chip New Control

介绍基于单片机AT89C52控制的自动往返电动小汽车控制系统的硬件和软件设计。为实现车速的准确控制,本设计最大的特点是软件采用脉宽调制使电机转速能自动调节,从而达到控制的要求。控制处理模块以单片机AT89C52为核心,对送入的脉冲信号进行检测分析,实现调速、停留、刹车等功能。由4位数码管进行对里程、往返时间的显示。

This paper introduces a kind of hardware and software design, which is the system of automatically back and forth electric car controlled by single chip AT89C52. For exact control of car speed, the prominent trait is that the motor speed can be auto- adjusted via pulse width modulation which is produced by software program, which comes up to the control request. The control processing module makes AT89C52 as a core, analyses pulse signal and realizes velocity modulation and stop function.