Research on Characteristics of Hysteresis in Accordance with the Oil Line of Clutch System

This thesis conducted a comparison analysis via an experiment on clutch pedal effort hysteresis response characteristic in accordance with oil line characteristic which makes up the drive system in automobile clutch. Clutch drive system experiment Jig was composed and used in comparison analysis of response characteristic in accordance with change in length of oil line possessing length of 4m and 8m and response characteristic in accordance with change in material using 8m length oil line possessing steel material, plastic material and rubber material with equivalent size data. The oil pressure applied to the oil line during the experiment was fixed at 8bar and the applied pedaling time was 0.3sec and 1.0sec. The result of the experiment showed the change in response characteristic aspect in accordance with oil line length change in clutch drive system was inadequate and was able to find out that the chance in response characteristic in accordance with oil line material change possessed the highest hysteresis response characteristic when steel material was applied. Through this study, we were able to understand the aspect of response characteristic change in hysteresis of clutch pedal effort in accordance with the characteristic change which makes up the oil line that composes clutch drive system.