Small Scaled, Low-Powered Electric Car Drive Mechanism

Engku Azizuddin, Engku Muhamad (2009) Small Scaled, Low-Powered Electric Car Drive Mechanism. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This project aims to develop a small scaled, low powered electric car drive mechanism that can be used to control the speed, direction of a direct current (DC) motor and have a feedback system for maintaining a constant speed of the motor in all condition. A conventional electric car drive mechanism uses mechanical component to operate. To be more specific, it uses electromechanical components in the control unit of the DC motor. The uses of this components make the overall circuit bulky and more complex because in standard package of electromechanical component, it is fairly bulky compared to electronic component. Furthermore, the circuit needs a higher input voltage to accommodate these components. This project will provide the necessity for the control unit to maintain the speed of the motor while an external pressure is applied to the motor that initially slows down the motor rotation. A sensor is used to detect the decreasing speed of the motor and a feedback system will tell the microcontroller to pump more power to the motor to regain the loss of speed and constantly maintain that speed. The objective of this project is to design an overall system that includes a control circuit and a feedback system to control the DC motor. The control circuit consists of microcontroller and several switches and light emitting diode (LED) and a sensor. The PIC is used because it can be programmed to meet certain conditions.

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