Mengesan Tahap Kelikatan Minyak Pelincir Dalam Kenderaan Menggunakan Sistem Logik Kabur

Maintaining thequality of lubricant oil quality canguarantee maximum ability in engine functions of vehicles. Currently, the quality of lubricant oil is primarily determinedby two factors, namely, vehicle s mileage and duration. However, these judgments are inaccuratebecause therearemany other factors like conductivity,humidity, temperature and viscosity that may affect the oil quality.In addition, improper treatment of used lubricant oil will greatly pollute the environment. From the nvestigation carried out,some parameters were suitably identified to determine the current quality of lubricant oil. Those parameters were error and change of erroroflubricant oil temperature that were usedas the inputs to a fuzzy logic ystem.The expert knowledge was compiled to justify the human expertise. This developed fuzzy logic system was able to function on its own by using Prolog programming language. The language eased the representation of rule-based knowledge so that its inference can be performed naturally.Theobtained data of temperature relation to the lubricant oil quality were applied to the developed membership function of the the fuzzy logic system and had gone through several stages to obtain crisp values representing the lubricant oil quality. The results obtained shows that 90% of the data can be predicted with 82.4 to 98.11% accuracy.