Design of an Idle Stop and Go System using Fuzzy Control

The Idle Stop and Go(ISG) system is a technology proposed as a solution for improving fuel efficiency and reducing exhaust gas in the traffic jam. A typical ISG system turns on or off the engine automatically depending on whether the host vehicle starts or stops. This type system can make fuel efficiency more badly because of frequent engine on/off operation. In this paper, the new Idle Stop and Go system is proposed using the fuzzy control algorithm. The system uses the information reflected the states of driving and traffic jam. It is more flexible to control the engine on-off along traffic conditions. The simulation is carried on to verify the performance of proposed system using actual driving data. It is compared with other systems designed by simple rule-based algorithm and another fuzzy control based system. It shows that the performance of the proposed system is superior than others.