基于AVR单片机的电动代步车控制器

提出一种高性能低成本的电动代步车控制器设计方案。该控制器以Atmel公司的AVR单片机为控制核心,H桥电路作为直流电机驱动器,使用者通过摇杆操控电动代步车的速度和转向。控制器的软件部分由系统自检、摇杆位置检测和电机运动3大部分组成,并灵活使用系统时标,事件触发机制和有限状态机等编程新方法,以确保系统的安全性和稳定性。实践表明,该电动代步车控制器能够实现多种故障诊断功能,电机启动和停止时运行平稳,摇杆操作灵活,系统整体性能良好,能够满足实际使用要求。

Powered wheelchair controller based On AVR microcontroller

In this paper,a new design plan of powered wheelchair controller with high performance and low cost is presented.The controller is based on Atmel Corporation’s AVR microcontroller.The driver of DC motor is H bridge circuit.By using joystick,the user can control the speed and direction of powered wheelchair.The software is consisted of three parts,self-check,joystick detection and motor running.To insure the safty and stability of the system,some useful programming methods are used,such as time mark,event trigger mechanism,and finite-state machine.The application indicates that this system can realize multi-fault diagnosis,the motors run smoothly,joystick is operated flexiblely,which can meet the requirements of actual utilities.