The Effect of a Motor-controlled Torque Vectoring Differential on the Vehicle Handling Dynamics
| Autor: | Jen-Cheng Sung, 宋仁正 |
|---|---|
| Rok vydání: | 2017 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 105 A type of motor-controlled torque vectoring differential is presented and analyzed in this study. The torque vectoring differential (TVD) in the study is based on open differentials with additional planetary gears and motors, which is capable of distributing torque. The engine power is transmitted to four wheels and the motors power is capable of controlling engine power between four wheels. The dynamic equations of the TVD are derived from the study, solved by Matlab and verified by SimulationX. In order to analyze the TVD, the study builds the program which is developed in Matlab and composed of driving model, power model, tire model and vehicle model. By the program, we can obtain the vehicle dynamics in different driving conditions. The study will analyze the limit-slip function in different road conditions with a fixed input engine torque, and the increase of the yaw rate when the vehicle is cornering. The study explains the effect of the traction and the yaw rate by starting motors. The result shows that the TVD can retain traction without increasing the yaw rate when tires slip and enhance the performance of cornering. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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