Study of Vehicle Drift during Straight-Line Acceleration and Decceleration

• Main Authors: Yan-Ting Chen, 陳彥廷
• Other Authors: Young-Chang Chen
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/01612477223191158269

碩士 === 國立屏東科技大學 === 車輛工程系所 === 101 === This thesis aims to investigate the vehicle motion in the vehicle handling performance test for a production car. An evaluation of the vehicle handling performance is performed by using the vehicle otion parameters. Based on the sensitivity analysis and optimization, a method for improving the performance of the vehicle handling is developed and verified. Firstly, a full vehicle model is constructed by Adams/Car software. Then, the acceleration and deceleration tests are simulated. The influences of the vehicle operating and suspension design parameters on the vehicle motion are investigated. The vehicle motion parameters include the drift, yaw velocity, toe angle and caster angle. Inaddition, the considered suspension design parameters include the position of the center of gravity, braking ratio, wheel alignment angles and the characteristics of the flexible components. Finally, the ADAMS/Insight modeul is employed to perform the sensitivity analysis and optimizing the vehicle handling performance. The results reveal that the individual test can not evaluate the performance of vehicle handling effectively. Thus, the comprehensive vehicle handling performance test should be performed and the integral evaluation is needed.