Date of Award

12-2023

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Electrical and Computer Engineering (Holcomb Dept. of)

Committee Chair/Advisor

Behnaz Papari

Committee Member

Christopher Edrington

Committee Member

Fatemeh Afghah

Abstract

A pathway to prevalence for autonomous electrified transportation is reliant upon accurate and reliable information in the vehicle’s sensor data. This thesis provides insight as to the effective cyber-attack placements on an autonomous electric vehicle’s lateral stability control system (LSCS). Here, Data Integrity Attacks, Replay Attacks, and Denial-of-Service attacks are placed on the sensor data describing the vehicle’s actual yaw-rate and sideslip angle. In this study, there are three different forms of detection methods. These detection methods utilize a residual metric that incorporate sensor data, a state-space observer, and a Neural-Network. The vehicle at hand is a four-motor drive autonomous electric vehicle that is propelled using 4-pole, 3-phase Brushless DC motors. Each motor is controlled using the Direct-Torque control motor control scheme that provides fast output torque response time. This vehicle is controlled via multiple layers of control. A Model Predictive Control Layer is used to discern what lateral trajectory commands minimize the difference between the requested and actual lateral position of the vehicle. These lateral motions are discovered through a Linear-Quadratic Regulator. This study was develop using the MATLAB Simulink environment.

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