| ANALYTICAL STUDY TO ESTIMATE THE PERFORMANCE OF THE POWER SHIFT DRIVE (PSD) AXLE FOR A FORKLIFT |
| S. M. PARK1, T. W. PARK1, S. H. LEE1, S. W. HAN2, S. K. KWON3 |
1Ajou University
2Wooyoung Hydraulics Corporation
3Hoseo University |
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| ABSTRACT |
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In this study, a new concept for a power delivery system is developed. Power Shift Drive (PSD) Axle vehicle modeling and dynamic movement analysis are performed via simulation. The dynamic vehicle model is constructed from data obtained from the derived equation, considering the specific characteristics of each part. The model is composed of a torque converter, a gear box, a differential, hub reduction and an engine, which is the power source of the 1st forward and reverse PSD-Axle. By unifying the mathematical equations for each component, a mathematical model of the 1st forward gear is derived. The system dynamic model is created using MATLAB/Simulink based on the mathematical model. Simulation is carried out using Simulink to estimate the dynamic behavior of the PSD-Axle. In addition, the dynamo test result is used to verify the model. Finally, a successful model is created. This study will be used to establish the basic conceptual design for the PSD-Axle multi-gear system. |
| Key Words:
PSD (Power Shift Drive) axle, Forklift, Two simple planetary gears, Lever analogy |
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