Series Motor Four Quadrants Drive DC Chopper: Reverse Mode with Automatic Reverse Parking of DC Drive Electric Car with Constant Brake Motor Control Combine to the Propulsion Motor Torque

Abstract

This paper is focused on the motor torque control of a DC motor attached to a hydraulic brake pedal to provide a friction-braking effect (the combination makes an electrohydraulic brake). This combination provides a braking effect to control the vehicle speed, and makes the final stop to ensure a correct position of EV during deceleration and stop of DC drive electric car for automatic reverse parking. The DC drive electric car uses a series motor powered by a four-quadrant drive DC chopper. The integration of the electrohydraulic brake with propulsion motor control is used to provide a braking action to decelerate and finally stop the vehicle. The control technique was simulated by using MATLAB/Simulink and results indicated that the technique had successfully met the objective of torque, current, speed and position control for automatic reverse parking, and thus was suitable for implementation with a DC drive electric car by using the series motor and four-quadrant DC chopper.