Dissertation/Thesis Abstract

Control and Steering of a Small 3D Printed Rover and its Applications to Engineering Education
by Bleything, Talesa Rene, M.S., University of California, San Diego, 2016, 109; 10195728
Abstract (Summary)

This thesis presents both the control design used to stabilize a small rover on two wheels as a mobile inverted pendulum, as well as the steering design used to achieve a series of unique stable driving modes. Additionally, the rover is assessed as an educational platform for use in teaching various STEM topics at both the high school and undergraduate university levels. The vehicle, termed BeagleRover, uses four DC motors and four servo motors to independently steer each wheel and achieve a total of six different driving modes, four of which are inherently stable four-wheel drive modes while two are unstable two-wheel drives modes. Two of the four stable drive modes implement Ackermann steering geometry to reduce side slip when driving around a turn. Experimental results using measurements from an onboard gyroscope suggest that side slip is indeed reduced by this method. Stability in the two unstable drive modes is achieved through classical control methods including lead and lag control. Complementary filtering of gyroscope and accelerometer measurements is used to derive accurate body position data for use in feedback. In support of current STEM education trends, this thesis provides a detailed solution set to the steering, control and filtering problems for potential use in STEM course material.

Indexing (document details)
Advisor: Bewley, Thomas R.
Commitee: Bewley, Thomas, Tolley, Michael, de Oliveira, Mauricio
School: University of California, San Diego
Department: Engineering Sciences (Mechanical Engineering)
School Location: United States -- California
Source: MAI 56/03M(E), Masters Abstracts International
Source Type: DISSERTATION
Subjects: Mechanical engineering
Keywords: Ackermann steering, Classical control, Complementary filter, Engineering education, Robotics, Rover
Publication Number: 10195728
ISBN: 978-1-369-60604-1
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