基于模糊理论的车辆直线行驶垂向力估算  

Estimation of Vehicle Sagging Force Under Straight Driving Condition Based on Fuzzy Theory

作　　者：郭传真 张凯鑫 欧阳斌[1] 彭彦[1] 颜雪强 刘小华 GUO Chuanzhen;ZHANG Kaixin;OUYANG Bin;PENG Yan;YAN Xueqiang;LIU Xiaohua(Hunan Shaping Construction Co.,Ltd.,Changsha Hunan 410008,China;Optics Valley Bluefire New Energy Co.,Ltd.,Wuhan Hubei 430205,China;College of Engineering,Huazhong Agricultural University,Wuhan Hubei 430070,China;Agricultural Machinery Engineering Research and Design Institute,Hubei University of Technology,Wuhan Hubei 430068,China;Zoomlion Heavy Industry Science and Technology Co.,Ltd.,Changsha Hunan 410013,China)

机构地区：[1]湖南沙坪建设有限公司,湖南长沙410008 [2]光谷蓝焰新能源股份有限公司,湖北武汉430205 [3]华中农业大学工学院,湖北武汉430070 [4]湖北工业大学农机工程研究设计院,湖北武汉430068 [5]中联重科股份有限公司,湖南长沙410013

出　　处：《汽车零部件》2022年第2期7-10,共4页Automobile Parts

基　　金：湖北省青年基金项目(2015CFB507)。

摘　　要：针对目前国内轮胎力估算算法精度低、响应慢等问题,考虑风载的影响,在MATLAB/Simulink环境下采用模糊算法选择合适的隶属度函数对轮胎垂向力进行估算,并在不同的直线行驶工况下进行仿真验证。结果表明:不同工况直线行驶时轮胎垂向力估算值与实际值比较吻合,该算法可以较好地估算直线行驶时轮胎的垂向力,且具有较高的精度。Aiming at the problems of low accuracy and slow response of domestic tire force estimation algorithms,considering the influence of wind load,the appropriate membership function was selected to estimate the tire vertical force by fuzzy algorithm in the environment of MATLAB/Simulink,and the simulation was carried out under different straight-line driving conditions.The results show that the estimated value of tire vertical force in straight-line driving under different working conditions is in good agreement with the actual value.The estimation algorithm can better estimate the tire vertical force in straight-line driving,and has high accuracy.

关 键 词：轮胎垂向力 模糊算法 精度 

分 类 号：U46[机械工程—车辆工程]