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Home > Vol 21, No 1 (2025) > Intacharoen

The Design of Pressure Control System using PD Controller for Light Duty Electric Vehicle

Patiparn Intacharoen, Chaiyut Sumpavakup, Kokiat Aodsup, Soontorn Odngam

Abstract


This article describes a control method for braking oil pressure control based on a hydraulic brake control system for light-duty electric vehicles. This research aims to investigate and develop an automated braking system to lessen the possibility of accidents and also prevent frontal collisions of vehicles. In this study, a brake management system was designed with a PD controller and a linear motor actuator was chosen to control the brake oil pressure. System identification of the mathematical model is necessary to investigate the relationship between input and output responses in the linear model's range. In order to gain insight into the behavior of this system, a mathematical model was investigated and estimated, and the ideal values for the PD controller were determined as well. These estimated values were then utilized in an optimization process. Using the parameter estimation in the MATLAB Simulink, the control parameters, with the proportional gain value at 27.9606 and the derivative gain at 32.0490, were identified. The developed braking system implemented in a light-duty electric vehicle showed that it could effectively regulate the brake oil pressure using the prescribed parameter. The error value was not more than ±8 psi of the specified value. These findings highlight the potential of the system's applicability to extend to large vehicles further.

Keywords


Brake system; DC motor; System identification; PD controller

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DOI: 10.14416/j.ind.tech.2025.04.002

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