Self-Balancing Scooter (Mechanical Design and Analysis)

Hong, Han Kee (2011) Self-Balancing Scooter (Mechanical Design and Analysis). Final Year Project (Other), Tunku Abdul Rahman University College.

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Abstract

This thesis covers the design and fabrication of a two wheel self-balancing scooter capable of carrying a human by maintaining the wheels underneath the rider's center of gravity. The aim of the project was to design and build a self-balancing scooter with the most simple and cost effective design which functions similar to the Segway Human Transporter (H T). The design draws upon the success and failures of the Segway HT and other attempts at producing self-balancing scooters which utilize various electronic device and sensor as the control method. Angular feedback from gyroscopic sensor and P WM output to motors are used in a control system to achieve the balanced of self- balancing scooter. The scooter goes through to self balance is similar to how a human balance where human use their inner ear, eyes, muscles, and a brain to keep their body balanced, but the self-balancing scooter uses solid-state gyroscopes, tilt sensors, high-speed microprocessors, and powerful electric motors to keep its balance. The self-balancing scooter was designed to be robust and easy-to-use whilst not compromising on strength. The design was focus on the simplest can cost effective manner with the reducing on sophisticated design that make it aesthetics look. After small changes from the initial design, the completion of a fully functioning prototype was achieved.