基于增量光电编码器的车速控制器设计

Design of vehicle speed controller based on incremental photoelectric encoder

为了精确检测汽车的速度并有效控制车速,提高智能车的快速性和稳定性,给出了基于增量光电编码器的车速检测脉冲四倍频电路,以及以PWM桥式功放为电机驱动器,以ATmegA128单片机为控制核心的速度控制系统的设计方法。文中介绍了增量光电编码器四倍频电路和控制器环路的硬件构成、工作原理、控制策略和软件流程;最后提供了实验结论。

In order to detect the vehicle speed accurately, control the speed effectively, and improve the rapidity and stability of the smart car, a pulse quadruplicate frequency circuit based on the incremental photoelectric encoder is introduced, and a design method of speed control system which takes PWM bridge power amplifier as the motor driver and ATmegA128 as the microcontrolle core is provided. The hardware composition, working principle, control strategies and software processes of incremental photoelectric encoder quadruplicate frequency circuit and the controller loop are introduced in this paper. Finally the experimental conclusion is given out.