Fatemeh Mirhakimi - Dept. Engineering ,Islamic Azad University, Arak, Iran
Abbas Karimib - b Dept. Computer and Communication Systems Engineering ,Faculty of Engineering, IAU & UPM ,Malaysia

A fault tolerance system is a kind of system which it can repair itself when a software or hardware error happens. As amatter of fact, in a fault tolerant system if an error happens the system will be able to repair itself and continue its jobwithout any interruption. The main point in these system is reliability feature which is so important. There are manysolution that can increase reliability in these system. One of these solution is redundancy method. In this paper, we triedto create a system which has a high reliability because ofusing redundancy method. We investigated this method inspecial kind of vehicles named Hybrid Vehicle. We showed that we can improve this feature remarkably using thismethod

Fault Tolerant Systems, Reliability, Redundancy, Hybrid Vehicles,Fuzzy logic