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某轿车前轮偏磨问题的研究及解决
引用本文:薛辉辉,刘宗巍,孟香,刘巍,潘之杰,赵福全. 某轿车前轮偏磨问题的研究及解决[J]. 农业装备与车辆工程, 2012, 50(4): 44-46
作者姓名:薛辉辉  刘宗巍  孟香  刘巍  潘之杰  赵福全
作者单位:吉利汽车研究院, 浙江省 杭州市,311228
摘    要:轮胎偏磨是指汽车在行驶过程中,出现一侧过度磨损的现象,它是汽车售后经常出现的一种问题.本文以国内某量产轿车为例,针对其前轮偏磨的现象进行了细致的分析,找出了其偏磨的两个原因,外倾角变化过大、前束外倾不匹配.针对外倾角变化过大,我们对前悬架硬点进行了DOE分析,找出了对外倾角变化率影响最大的因子,并以为指导,修改悬架硬点、降低了外倾变化率.并对外倾及前束进行了重新匹配.经过台架试验及道路试验验证,偏磨现象消失.

关 键 词:轮胎偏磨  外倾角变化  前束外倾匹配  优化设计

Research and Solution to Side Wear of Front Wheels on a Particular Car
XUE Hui-hui , LIU Zong-wei , MENG Xiang , LIU Wei , PAN Zhi-jie , ZHAO Fu-quan. Research and Solution to Side Wear of Front Wheels on a Particular Car[J]. Agricultural Equipment & Vehicle Engineering, 2012, 50(4): 44-46
Authors:XUE Hui-hui    LIU Zong-wei    MENG Xiang    LIU Wei    PAN Zhi-jie    ZHAO Fu-quan
Affiliation:(Geely Automobile Institute, Hangzhou City, Zhejiang Province 311228, China)
Abstract:Side wear of a tire means that an excessive wear on one side occurs during driving. It is a common problem in a vehicle’s use. Taking a particular car as an example, the side wear of front wheels is fully analyzed and two reasons thereof are found: too big camber angle and an unmatched relation between camber angle and toe angle. Therefore, a simulation analysis of dynamic operating environment (DOE) is performed for suspension hard points to find the major factors to affect the change rate of camber angle. Furthermore, the suspension hard points are modified based on simulation results, thus reducing the change rate of camber angle. Also, the matching between camber angle and toe angle is conducted again. The test results show that the side wear is completely eliminated.
Keywords:tire side wear  camber angle change  matching between camber angle and toe angle  optimization design
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