Influence of the layout position of stabilizer bar’s linkage on auto handling performance
                     JIANG Junping, XIN Qingfeng, JIA Baoguang, GUO Zhiming,YE Mingrui, XU Xiaoyu, YANG Quankai
                                           (Zhejiang Jizhi New Energy Auto Technology Co., Ltd., Hangzhou 311228, China)

Abstract: Aiming at the problem of layout position of stabilizer bars linkage, two layouts (before or behind the kingpin) based the point of space force were analyzed, and pointed out that the layout of stabilizer bars linkage behind the kingpin was beneficial to auto understeer. In the ADAMS, the suspension and auto assembly model with nonlinear stabilizer bar were established, through the K&C simulation, the roll steer coefficient and suspension roll stiffness which with large influence by the stabilizer bar were analyzed, and through the whole vehicle steady static circular simulation, the influence of the two layout schemes on the performance of the whole vehicle were analyszed. The results indicate that the understeer of the vehicle with the linkage behind the kingpin increases by 20.59%, and the vehicle handling stability improved, but the vehicle roll gradient also increases by 2.24%, safety get worse.

Key words: stabilizer bar’s linkage; roll stiffness; roll steer; understeer