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This study proposes a method of decreasing the engine idle speed for the engine of FSAE race car. In general, the engine is controlled by map-based method. However, this method requires much time and cost to create a fuel injection map and an ignition timing map [1]. In addition to this, creating these maps at idle speed is much harder because the engine speed is cranky at idling. In this study, ON/OFF control and PID control were used for idle speed control without creating maps. As a result, idle speed was decreased drastically compared with map-based control. The PID control was able to stabilize the idling compared with the ON/OFF control.

Chassis performance greatly influences driving in the turn inn movement. Spec of the active damper is simulated to achieve a chassis that satisfies various requirements. In this paper, an MR-damper (Magneto-Rheological fluid damper), which is high-response active damper, is chosen. The MR-damper is mounted in FSAE vehicles and controlled vehicle behavior electronically in a simulator. As a result, the MR-damper brought a big effect to pitch action rather than roll action, and an initial damping force effected vehicle behavior more than damping force change ratio.