Optimization of Double Wishbone Suspension System with Variable Camber Angle by Hydraulic Mechanism

Authors: Mohammad Iman Mokhlespour Esfahani, Masoud Mosayebi, Mohammad Pourshams, Ahmad Keshavarzi

Abstract:

Simulation accuracy by recent dynamic vehicle simulation multidimensional expression significantly has progressed and acceptable results not only for passive vehicles but also for active vehicles normally equipped with advanced electronic components is also provided. Recently, one of the subjects that has it been considered, is increasing the safety car in design. Therefore, many efforts have been done to increase vehicle stability especially in the turn. One of the most important efforts is adjusting the camber angle in the car suspension system. Optimum control camber angle in addition to the vehicle stability is effective in the wheel adhesion on road, reducing rubber abrasion and acceleration and braking. Since the increase or decrease in the camber angle impacts on the stability of vehicles, in this paper, a car suspension system mechanism is introduced that could be adjust camber angle and the mechanism is application and also inexpensive. In order to reach this purpose, in this paper, a passive double wishbone suspension system with variable camber angle is introduced and then variable camber mechanism designed and analyzed for study the designed system performance, this mechanism is modeled in Visual Nastran software and kinematic analysis is revealed.

Keywords: Suspension molding, double wishbone, variablecamber, hydraulic mechanism

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1080614

References:

[1] R.Kazemi, Principles design of vehicle suspension and steering systems, Second Edition, in Persian.
[2] J. Goldberg, Adjusting automobile suspension system, United States patent, US4191274, Mar.4, 1980.
[3] J. Goldberg, Adjusting automobile suspension system, United States patent, US4371191, Feb.1, 1983.
[4] K.M.Choudhery, Variable camber suspension system, United States patent, US6874793, Apr.5, 2005.
[5] L.Serra, C.Tetaz, Vehicle suspension with camber control, United States patent, US6688620, Feb.10, 2004.
[6] D.Laurent, M.Sebe , Vehicle suspension having active camber variation, United States patent, US6547620, Apr.15, 2003.
[7] D.Laurent, M.Sebe , Vehicle suspension having active camber variation, United States patent, US6406036, Jun.18, 2002.
[8] K.M.Choudhery, Variable camber suspension system, United States patent, US6279920, Aug.28, 2001.
[9] W.Weiss, Vehicle suspension with automatic camber adjustment, United States patent, US6267387, Jul.31, 2001.
[10] Dewitt Gabel, Zero camber steering suspension, United States patent, US5009447, Apr.23, 1991.
[11] H.A.Rori, W.A.Hoenle, Independent suspension toe and camber adjustment system, United States patent, US4973075, Nov.27, 1990.
[12] F.Andre, M.Blondelet, Vehicle with a variable camber suspension device, United States patent, US20090033057, Feb.5, 2009.
[13] R.Boston, Vehicle suspension system with a variable system, United States patent, US20090194965, Aug.6, 2009.
[14] M.Sebe, Vehicle having suspension system with variable camber and vertical suspension in the plane of the wheel, United States patent, US6511078, Jan.28, 2003.
[15] W. Schiehlen and T. Schirle, Modeling and simulation of hydraulic components for passenger cars, Vehicle System Dynamics journal, Vol. 44, Supplement, 2006, 581-589.
[16] H.Dalayeli, Industrial hydraulic, Volume 1, Sixth Edition, 2006, in Persian.
[17] R.N.Jazar, Vehicle dynamics theory and application, Springer, 2008.
[18] H.Dalayeli, Industrial hydraulic, Volume 2, Third Edition, 2006, in Persian.