Browsing by Author "Üstün,Ö."

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    Design and analysis of traction system for electric kick scooters;
    (Institute of Electrical and Electronics Engineers Inc., 2020) Serter,B.; Kıvanç,Ö.C.; Üstün,Ö.
    Today, an important part of the continuously developing electric vehicle technology is light electric vehicles. Electric kick scooters are one of the most basic types of light electric vehicles and their usage areas are increasing day by day. Especially for personal use and shared transportation systems, electric kick scooters have an important place. In this study, the design of the electric motor of a standard electric kick scooter and the characteristics of the power electronics and battery system suitable for this motor are presented. The rated power and maximum power values are determined within the scope of the vehicle's basic parameters, road performance and standards. The electric motor designed in the brushless direct current motor topology has a rated power of 300W and a maximum power value of600W. The motor has been designed for different number of slot-pole ratios, and the most suitable motor has been selected considering the manufacturing, cost and performance values. The fundamental structures and values of motor driver and battery package are briefly investigated. A proper battery capacity is given for maximum allowable travel distance. © 2020 Turkish Chambers of Electrical Engineers.
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    High performance position control of double sided air core linear brushless DC motor
    (Institute of Electrical and Electronics Engineers Inc., 2017) Norouzi,P.; Kivanç,O.C.; Üstün,Ö.
    Double-Sided Air Core Linear Brushless DC motors widely used in the industry where longitude motion is needed. In terms of efficiency, high speed and acceleration, long life, Stiffness, few moving parts, precise positioning and no transmission components, and so on have many advantages. In this paper position control of a Double Sided Air Core Linear BLDC motor is studied by two methods, first of all the classical PID control method is applied to the system and then Fuzzy-PID control method is investigated on system. The motor specifications and technical features of it are derived and presented. The simulation and the motor model including the control algorithm is built by using of Simulink and is investigated. Finally, to validate simulation result, designed controllers are applied to the Double-Sided Air Core Linear Brushless DC Motor practically. The experimental test results validate simulation result and the accuracy of the both control method and their dynamic performances are compared with each other. © 2017 EMO (Turkish Chamber of Electrical Enginners).
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    A study on autonomous vehicle development process at Okan University
    (2012) Akgün,T.; Tuncay, Ramazan Nejat; Güner,Ş.; Öztürk,B.; Özkan,B.; Üstün,Ö.; Özgüner,Ü.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
    In this paper, the development process of an autonomous vehicle is explained, and the project development stages are summarized. The vehicle is designed to go on urban roads, autonomously. This project has been implemented at The Transportation Technologies and Intelligent Automotive Systems, Application and Research Center (TTIS) which is established within the Faculty of Engineering and Architecture at Okan University. The project has been planned to be developed in three stages. In the first development stage, majority of the vehicle mechatronics parts are completed and the autonomous drive is achieved by using the LIDAR. To achieve the autonomous operation, steering, throttle and braking systems are controlled electronically. The first two development stages were completed on March 2012. In the third development stage, the integration of GPS and other necessary sensors will be mounted to the vehicle and the autonomous operation of the vehicle will be accomplished under normal traffic conditions. © 2012 IEEE.