Browse > Article
http://dx.doi.org/10.7467/KSAE.2013.21.1.121

Improvement of Vehicle Handling Performance due to Toe and Camber Angle Change of Rear Wheel by Using Double Knuckle  

Sohn, Jeonghyun (Department of Mechanical & Automotive Engineering, Pukyong National University)
Park, Seongjun (R&D Center, Kumho Tire)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.21, no.1, 2013 , pp. 121-127 More about this Journal
Abstract
In this study, suspension geometry is controlled to improve vehicle handling performance. The toe and camber of the rear suspension is controlled independently by using a double knuckle structure designed to enhance the vehicle cornering stability. Camber and toe changes in the rear wheel during high speed turning maneuver are important factors that influence the vehicle stability. Toe in the rear outer wheel plays a dominant role in cornering. A control algorithm for the camber and the toe angle input is developed to carry out the control simulation of the vehicle such as single lane change, the steady state cornering, the double lane change and the step steering simulation. Effects of the camber and toe angle control are analyzed from the computer simulations. A double lane change simulation revealed that the suspension mechanism with variable camber angle and variable toe angle decreases the peak body slip angle and peak yaw rate, 50% and 10%, respectively.
Keywords
Vehicle handling performancec; Camber angle; Toe angle; Suspension; Vehicle dynamics; Kinematic analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 K. W. Lee, J. G. Lee, S. K. Oh, J. H. Roh, Y. W Kim, H. S. Kim, I. D. Kim and J. H. Jang, "A Study of Integrated Chassis Control System with ESC and CDC for Vehicle Stability and Handling Performance Enhancement," KSAE Spring Conference Proceedings, KSAE09-B0093, 2009.
2 R. W. Chung, W. J Sung and H. Sung, "A Study of Stability Control Algorithm in Split-$\mu$ Braking Using Active Front Steering System," Annual Conference Proceedings, KSAE, pp.1245- 1250, 2009.
3 W. J. Bong, Y. K. Kim and H. C. Lee, "AWD Vehicle Simulation with the Intelligent Torque Split Control Strategy for Improving Traction and Handling Performance," Transactions of KSAE, Vol.6, No.2, pp.841-850, 2007.
4 J. H. Song and K. S. Boo, "Development and Performance Evaluation of ESP Systems for Enhancing the Lateral Stability During Cornering," Trans. Korean Society of Mechanical Engineers, Vol.30, No.10, pp.1278-1283, 2006.   과학기술학회마을   DOI   ScienceOn
5 J. Y. Zhang, J. W. Kim, K. B. Lee and Y. B. Kim, "Development of an Active Front Steering System with QFT Control," Int. J. Automotive Technology, Vol.9, No.6, pp.695-702, 2008.   과학기술학회마을   DOI   ScienceOn
6 S. H. Lee, H. Sung, J. W. Kim, Y. H. Oh and U. K. Lee, "Investigation on the SUV Rollover Performance by the AGCS System," Spring Conference Proceedings, KSAE, Vol.II, pp.660- 664, 2006.
7 E. S. Kwak, Analysis and Implementation of a Camber Angle Control Mechanism for Improvement of Vehicle Steering Characteristic, M. S. Dissertation, The Korea University, Seoul, Korea, 2007.
8 K. Isao, B. Pernando and F. Cheli, "A Full Vehicle Model for the Development of a Variable Camber Suspension," Proceedings of the ASME IDETC/CIE 2007, DETC2007-34679, 2007.
9 T. Takiguchi, N. Yasuda, S. Furutani, H. Kanazawa and H. Inoue, "Improvement of Vehicle Dynamics by Vehicle-Speed Steering Four-wheel Steering System," SAE 860624, 1986.
10 H. Inoue and F. Sugasawa, "Comparison of Feedforward and Feedback Control for 4WS," Vehicle System Dynamics, Vol.22, No.5-6, pp.425-436, 1993.   DOI   ScienceOn