The objective of this study is to simulate the shifting performance of a clutch pack for full power-shift transmission (PST) of a tractor. The shifting shock and shifting time were calculated based on the load profile of a tractor. Both shifting shock and shifting time were analyzed based on literature. It was found that the shifting shock and shifting time were satisfied with the simulation conditions. It was also found that shifting shocks were less than 9.8 m/s2 and the sifting times were maximum 1 s, which was less than 1.2 s. The limitation of the study is conducted by the only simulation. Finally, it can be said that this is the basic study on power-shift transmission. It is required to conduct the further study for enhancing the transmission performance.
Figures & Tables
Fig. 1. The power flow diagram of power-shift transmission