Alief Wikarta

Cold start technology for dedicated bioethanol SINJAI-150 engine

One of the properties of bioethanol fuel that causes a difficult initial startup is the evaporative heat of bioethanol, which is three times greater than gasoline fuel, which is 904 kJ/kg [1], requ...

Water resistance performance test of GESITS electric scooter

GESITS is an Indonesia electric scooter with design and manufacture in Institute of Technology Sepuluh Nopember (ITS) Surabaya, Indonesia. It is the first electric scooter in Indonesia that developed by a group of Indonesian engineers and business people that banded together to deliver the product to the market. One of the key to the successful implementation of e-scooter is the water resistance performance test of the e-scooter. In order to accomplish the protection, it is important to conduct the water ingress test based on Standard IPX5. In this paper explains the water resistance performance test for GESITS and then discuss some results. In accordance with the test procedure to evaluate IPX5 protection against ingress of water, the water resistance shall be carried out by spraying with a stream of fresh water the enclosure from all practicable directions with a standard test nozzle. The results showed that after finished the test and analyzing both the battery compartment and the controller compartmen...

Different approach of fuzzy logic algorithm implementation for increasing performance of axial BLDC motor

Automotive technologies growing fast nowadays, as all know that electric vehicle is one of the most interesting field there. Higher efficiency, better performance, and eco-friendly technology are great values offered by this technology. Even though many researcher keep trying to increase those values offered. Some of them are trying to implement Fuzzy Logic Algorithm in the control system which drives the electric motor. Fuzzy Logic are implemented on top of the PID control system so the Kp, Ki, and Kd parameters will be changed based on the feedback of the controller. This paper provides different Fuzzy Logic Algorithm, instead of implemented it on top of PID control system, Fuzzy Logic Algorithm’s output will be calculated directly for driving electric motor which is axial BLDC type of electric motor in this case. The experimental results show that implementing Fuzzy Logic directly is much better than previous approach.Automotive technologies growing fast nowadays, as all know that electric vehicle is one of the most interesting field there. Higher efficiency, better performance, and eco-friendly technology are great values offered by this technology. Even though many researcher keep trying to increase those values offered. Some of them are trying to implement Fuzzy Logic Algorithm in the control system which drives the electric motor. Fuzzy Logic are implemented on top of the PID control system so the Kp, Ki, and Kd parameters will be changed based on the feedback of the controller. This paper provides different Fuzzy Logic Algorithm, instead of implemented it on top of PID control system, Fuzzy Logic Algorithm’s output will be calculated directly for driving electric motor which is axial BLDC type of electric motor in this case. The experimental results show that implementing Fuzzy Logic directly is much better than previous approach.