Browse Publications Technical Papers 2007-32-0116
2007-10-30

Simplification of the Shift/Clutch Operations for the Formula SAE Vehicles 2007-32-0116

The simplified shift/clutch operation system, KF-TOS-P, was driven by DC motors (DC12V driven) with a microprocessor. Two rotary sensors detected the positions of the shift lever and the clutch lever. In FSAE rules, the simple throttle-by-wire is prohibited and the engine speed was controlled by the drivers. The custom steering wheel, KF-SW07 as the human machine interface, was designed and manufactured with CFRP by VaRTM (Vacuum assisted Resin Transfer Modeling) method. The shift operation time of KF-TOS-P was half of the manual operation and the clutch engagement time of that was 25msec. KF-SW07 was 22.6% weight and 16.7% cost (calculated by FSAE rules) of the commercial steering wheel of the race use.

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