颠簸路面对双离合器变速器齿轮敲击噪声的影响研究  

The Impact Research of Bumpy Road on Gear Rattle Noise of Dual-Clutch Transmission

作　　者：张飞兵 秦振振 朱丽丹 ZHANG Fei-bing;QIN Zhen-zhen;ZHU Li-dan(Dongfeng Dinsin Powertrain Technology Co.,Ltd.Wuhan 430058,China)

机构地区：[1]东风鼎新动力系统科技有限公司技术中心,武汉430058 [2]东风鼎新动力系统科技有限公司,武汉430058

出　　处：《汽车科技》2021年第5期11-16,共6页Auto Sci-Tech

摘　　要：针对某DCT车型整车NVH测评工况中出现的变速箱齿轮敲击与路面颠簸程度相关性问题,本文基于MATLAB软件平台和工程师对齿轮敲击的主客观评价结果数据,应用决策树算法分析了左右驱动轮转速信号,并训练出分类器,用于该车型产生齿轮敲击颠簸路面的判断。同时基于MATLAB GUI研发了颠簸路面辨识的软件平台,用于指导双离合器变速箱TCU换挡策略,以改善颠簸路面下DCT齿轮敲击噪声品质。Aiming at studying the correlation between transmission gear rattle noise and bumpy road excitation,in this paper,based on MATLAB software platform and subjective&objective evaluation results of gear rattle noise from dual clutch transmission used in passenger vehicle application,the speed signals of left and right driving wheels are analyzed by using decision tree algorithm,and the classifier is trained to identify the bumpy road which causes gear rattle noise.Meanwhile,a software platform for Bumpy Road Identification was developed based on MATLAB GUI,which was used to guide the dual-clutch transmission TCU shift strategy to improve the gear rattle noise quality on bumpy road.

关 键 词：颠簸路面 齿轮敲击 决策树MATLAB 双离合器变速箱 

分 类 号：U461.4[机械工程—车辆工程]