Fuzzy PID controllers using 8-Bit microcontroller for U-Board speed control

This paper presents a design and implementation of Fuzzy Logic PID Controller using 8-bit microcontroller U-Board speed control. The speed of system depends on the speed of considered DC motor. So, the main speed control is to control the speed of considered DC motor. The completed system composes of Fuzzy PID controller, Half-bridge driver, motor, 4:1transmission gear, tire, and speed sensor. The controller reads the commanding speed from user and compares to the actual speed read by the speed sensor which is attached with the U-Board frame, performs the Fuzzy PID computation, then sets the result of calculation to the PWM ports to drive the motor. The tire of the U-Board is connected to the motor by the chain with 4:1 reduced gear, it can be clearly seen that the speed of U-Board is slower than the speed of motor 4 times. The feasibility and effectiveness of the control techniques are verified using the experimental results and implemented using the PIC 8-bit microcontroller under speed variation and showed the superiority of Fuzzy-PID.