How To Adjust The Speed Of Electric Trucks?

Electric four-wheel trucks are composed of many parts, and each part must be flexibly controlled to travel safely. The motor speed control device is designed for the speed change and direction change of electric trucks. Its function is to control the voltage or current of the motor to complete the control of the driving torque and rotation direction of the electric truck motor. In early electric trucks, the speed regulation of the DC motor was achieved by connecting resistors in series or changing the number of turns of the motor's magnetic field coil. Because the speed regulation is step-by-step, it will cause additional energy consumption or the structure of the electric motor is complicated, so it is rarely used now. The most widely used one is thyristor chopper speed regulation, which controls the current of the motor by uniformly changing the terminal voltage of the motor.