Speed control of 4-wheel electric vehicle using PI based controller

Ahmad Bakri, Mohammad Firdaus Syafiq (2021) Speed control of 4-wheel electric vehicle using PI based controller. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This thesis presents the modelling, simulate and control of an electric vehicle to investigate their performance after running for a 1500 second. This electric vehicle was built using individual components and each component selection based on the previous research and discussion with supervisor. The basic component for the electric vehicle drivetrain were electric motor, battery, power electronics, driver controller, vehicle body and a drive cycle. This drivetrain was validated with a real vehicle first before modelling it through a Matlab-Simulink software and it just viewed as a Vehicle Longitudinal Model. The regenerative braking system also included in this simulation cause by the ability of the dc motor to act as a generator during braking. Several simulation tests were performed by employing the same reference speed as the vehicle validation which were 40 km/h, 60 km/h, and another reference speed proposed by Society of Automotive Engineer (SAE), namely the Federal Test Procedure 75 (FTP75). The result of this study shows the simulation about the velocity, torque, power, current, voltage of the motor and the battery state of charge (SOC).

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