Browsing by Author "Kazan, Fatih Alpaslan"

Now showing 1 - 6 of 6

Citation - WoS: 2
Citation - Scopus: 2
Design and Implementation of a Test Setup for Electric Mobility Scooter for the Disabled
(SAGE PUBLICATIONS LTD, 2019) Akkaya, Ramazan; Kazan, Fatih Alpaslan
In this study, a test setup was designed for three- and/or four-wheeled electric mobility scooter models used by disabled or old people. This system is composed of a test platform that enables measurement of vehicular velocity, a data acquisition card, and an interface prepared in the C# program. Using the data acquisition card that was designed, seven quantities, namely, battery and motor currents, battery and motor terminal voltages, wheel speed in revolution per minute, and ambient and motor temperatures, were measured instantaneously during the test procedure and transferred to a computer via a USB device. Using these data that were transferred, motor speed in revolution per minute, torque generated by the motor, motor shaft power, motor and driver efficiency, instantaneous velocity of the vehicle, and total distance covered information obtained from the moment the vehicle began to be used were computed in real time throughout the experiment in the interface prepared in the C#, and their graphs were drawn and recorded. Thus, the faults in the battery, motor, or driver of electric mobility scooters became easily detectable in tests conducted under various conditions such as different ambient temperatures, different user weights, and roads with different slopes.
Design and Realization of an Electronic Pitot Cover That Will Not Be Forgotten Before the Take-Off
(2025) Arslan, Cemile; Arslan, Mustafa; Kazan, Fatih Alpaslan
In this study, an electronic cover system was designed and produced that will prevent forgetting before take-off at aircraft. Proposed system, which has a very simple but effective structure, basically consists of microcontrollers, wireless communication modules, and switches. This prototype system has two components, the pitot component and the cockpit component. If the pitot component is attached to the pitot tube, the system starts working when the cockpit component is active. In the designed system, both components communicate with each other wirelessly. As a result of this communication, both components flash the powerful light-emitting diodes (LEDs) on them at certain intervals (by making a flash effect). When the power LEDs are blinking, it means that the cover is attached to the pitot tube. In this way, both the marshalling officers and the pilot are warned that the cover is attached to the pitot tube, preventing a possible accident.
The Effect of Increases in User Weight and Road Slope on Energy Consumption in Disabled Vehicle Driven With Pmsm
(2021) Kazan, Fatih Alpaslan; Akkaya, Ramazan
In this study, the effect of increases in user weight and road slope on energy consumption (Wh/km) value of a disabled vehicle driven with permanent magnet synchronous motor (PMSM) was investigated. In order to digitize this effect, a test system consisting of a data reading card and an interface program prepared in Visual C # was developed. In this way, information about the disabled vehicle and the road was collected instantly during the test process and visualized in the interface. Then experimental studies were carried out on two roads with different slopes with users of different weights. Finally, by using the obtained results, the effect of increases in road slope and user weight on the energy consumption of the vehicle was demonstrated by numerical data. By using these results, the numerical simulations of battery-operated disabled vehicles can be calibrated and much more realistic simulation results can be obtained in future studies.
The Effect of Road Slope on Parameters of Disabled Vehicle Driven by Pmdc Motor
(2022) Kazan, Fatih Alpaslan; Akkaya, Ramazan
In this study, the effect of road slope on the electrical and mechanical parameters of a disabled vehicle and regenerative braking was investigated on a 4 wheel disabled vehicle driven by a permanent magnet direct current (PMDC) motor. For this purpose, the test system, which was designed by the authors in order to test such vehicles in a laboratory environment, was developed in a way that allows the vehicle to be tested in external environments. This test system consists of a data acquisition card (DAC), related sensors, and an interface prepared in the C# program. Using the DAC, currents, voltages, speed, road slope, and temperatures were measured instantaneously during the test process and then transferred to the computer instantly. Using these data, the motor's speed, the motor's torque, the motor's shaft power, the yields of the motor and the driver, the vehicle's instantaneous speed, and the total covered distance were calculated during the experiment in real-time by the interface. At the same time, these data were graphed and saved. Tests were carried out on roads with a positive and negative slope. Finally, the data obtained from these tests were analyzed and the alterations in the electrical and mechanical parameters of the disabled vehicle depending on the road slope were clearly demonstrated by numerical data.
Elektrikli Engelli Araçları için Geliştirilen Test Sistemiyle Pmdc ve Pm Senkron Motor Kullanımının Analizi
(Konya Teknik Üniversitesi, 2019) Kazan, Fatih Alpaslan; Akkaya, Ramazan
Yapılan bu tez çalışmasında akülü engelli araçlarının bir türü olan 3 ve 4 tekerlekli akülü scooter modelleri için test ve arıza tespit sistemi tasarlanmış ve gerçekleştirilmiştir. Sistem, araç hızının ölçülmesini sağlayan test platformu, veri okuma kartı ve C# programında hazırlanan bir arayüzden oluşmaktadır. Gerçekleştirilen veri okuma kartı sayesinde akü ve motor akımları, akü ve motor uç gerilimleri, teker devir sayısı, yol eğimi, ortam ve motor sıcaklıkları olmak üzere 8 adet büyüklük test işlemi süresince anlık olarak ölçülmüş ve USB üzerinden bilgisayara aktarılmıştır. Aktarılan bu veriler kullanılarak motor devir sayısı, motorun ürettiği tork, motorun mil gücü, motor ve sürücü verimleri, aracın anlık hızı ve araç kullanılmaya başlandığı andan itibaren alınan toplam yol bilgileri C#'da hazırlanan arayüzde deneysel çalışmalar süresince gerçek zamanlı olarak hesaplatılmış, grafikleri çizdirilmiş ve kaydedilmiştir. Gerçekleştirilen bu sistem sayesinde, engelli araçlarının akü, motor veya sürücülerindeki arızalar farklı ortam sıcaklığı, farklı kullanıcı ağırlığı, farklı eğimli yollar gibi değişik koşullar altında yapılan test ve analizler sayesinde kolayca tespit edilebilir hale getirilmiştir. Genelde açısal konum ölçümünde kullanılan analog çıkışlı mutlak enkoderlerin hız ölçümünde de kullanılabileceği literatürdekilerden farklı, yeni bir hız ölçüm bir yöntemi olarak ortaya konulmuş ve literatüre M+ADC yöntemi olarak kazandırılmıştır. Sadece frekans yöntemi kullanılarak yapılan hız ölçümünde % 4.91 olarak gerçekleşen ortalama bağıl hata, yeni yöntem kullanıldığında % 0.08'e düşmüştür. Gerçekleştirilen sistem kullanılarak elde edilen veriler ışığında kalıcı mıknatıslı doğru akım (Permanent Magnet Direct Current-PMDC) motoru ile sürülen engelli aracının farklı yük ve yol eğimlerindeki davranışları ile rejeneratif frenleme etkisi incelenmiş ve analiz edilmiştir. Daha sonra engelli aracındaki PMDC motor yerine kalıcı mıknatıslı (Permanent Magnet-PM) senkron motor takılmış ve tek motora sahip 4 tekerlekli bir akülü engelli aracı Türkiye'de ilk kez bu tez çalışmasında PM senkron motorla sürülmüştür. PM senkron motorla sürülen araç için de benzer testler yapılarak her iki araç için enerji tüketim (Wh/km) değerleri elde edilmiş ve karşılaştırılmıştır. Farklı eğimli yollarda farklı ağırlıklara sahip kullanıcılarla yapılan testlerde de kullanıcı ağırlığı ve yol eğiminin enerji tüketimi üzerindeki etkileri deneysel verilerle net bir şekilde ortaya konulmuştur.
Citation - WoS: 10
Citation - Scopus: 11
A New Method for Angular Speed Measurement With Absolute Encoder
(KAUNAS UNIV TECHNOLOGY, 2020) Akkaya, Ramazan; Kazan, Fatih Alpaslan
The encoders are electromechanical devices that give information about the angular position and the number of turns of the shaft, which they are connected. These devices are divided into digital or analogue according to output types. On digital outputs, the output can be binary coded, gray coded or pulsed. The frequency (M) or period (T) method produces accurate results in pulse-output encoders. However, these methods alone cannot give accurate results in some encoder types, which are saw tooth type encoders that produce analogue outputs in different shapes. In this study, a new method was proposed, which reduces the relative error ratio too much below 1 % in an absolute encoder that produces an analogue output ranging from 0 V to 5 V according to the angular position of the shaft. Unlike in the studies in the literature, M method and Analog Digital Converter (ADC) were used together. Thanks to this proposed method (M + ADC), it is possible to increase the measurement accuracy of the encoders with analogue output in all speed regions.