多参数检测下载货汽车制动过程危险状态辨识  

Identification for TYuck Risk Breaking Status Based on Multi­Parameter Detection

作　　者：谢宝明 姚雪萍 冀秉魁[1,2] 李明达 XIE Bao-ming;YAO Xue-ping;JI Bing-kui;LI Ming-da(Guangxi Automobile Group Co.Ltd.Postdoctoral and External Expert Workstations,Liuzhou 545000,China;Changchun Institute of lechnology,School of Automotive Engineering,Changchun 130012,China)

机构地区：[1]广西汽车集团有限公司博士后与外部专家工作站,柳州545000 [2]长春工程学院,长春130012

出　　处：《汽车科技》2023年第1期9-15,共7页Auto Sci-Tech

基　　金：吉林省科技厅自然基金项目“基于大数据的车辆健康状态评估与智能诊断技术研究”(YDZJ202201ZYTS409).

摘　　要：制动系统相关故障和行车间距不足是导致载货汽车追尾和侧翻事故的主要原因,通过制动危险状态及其影响因素的分析,搭建车辆在途状态检测装置,获取载货汽车载荷、车速、制动系统状态数据;基于传感器数据进行了制动蹄片磨损程度异常、制动蹄片温度异常状态和制动灯故障等单参数制动危险状态辨识;通过对制动过程中车辆进行动力学分析,建立了多参数制动距离计算模型,为标定模型参数,设计并完成了车辆滑行试验;通过仿真及实车试验,对载货汽车制动距离模型的有效性进行了验证。基于多参数制动距离模型,提出了一种检测载货汽车制动过程中的危险状态的方法。The main factor of truck rear-end collision and rollover are braking system failure and distance headway deficiency・By analyzing the dangerous status of braking and influencing factors,the detection device for truck in-transit status is built to obtain the truck load,speed and braking system status data.Identification for brake dangerous status such as wear degree of brake shoe anomaly,brake shoe temperature abnormal and brake lamp fault was carried out with single parameter.Braking dynamics analysis was performed for establishing braking distance calculation formula,and model parameters of the truck were calibrated by idling and sliding tests.Simulation and real vehicle test are designed respectively to verify the reliability of vehicle braking distance model.Considering the relationship between driving distance,braking pipeline pressure and braking distance,a multi parameter identification method of vehicle dangerous state in braking process is proposed.

关 键 词：载货汽车 状态检测 制动过程 仿真分析 危险辨识 

分 类 号：U467[机械工程—车辆工程]