汽车举升加载制动检测适应性分析
Analysis on adaptability of automobile lift loaded braking test
摘要 GB 21861-2014规定自2017年3月1日开始实施加载制动检测,加载方法采用台体举升法.在台体举升高度可调的汽车制动检验台上,研究了台体举升加载制动检测方法对车辆的适应性,分析了举升加载制动检测原理及测试方法.对两轴汽车、并装双轴汽车、三轴汽车和并装三轴挂车进行了举升加载制动检测.结果表明:两轴汽车和并装双轴汽车举升加载制动检测的效果很不明显,不适宜采用举升加载制动检测;三轴汽车举升后轴荷增加79.2%,制动力增加46.4%,举升后轴荷增加幅度大,适宜采用台架举升方式进行中间轴加载制动检测;并装三轴挂车举升后轴荷显著变化,适宜采用台架攀升方式进行加载制动检测.
Abstract:
According to GB 21861-2014,the loaded braking performance test should be added into vehicle test programs from the 1 st March of 2017,and the loading method should apply lift loading on brake test platform.Using the platform with adjustable lifting height,the adaptability of the test method of lift loading for vehicles was investigated,and the test principles and the detail method of lift loaded braking test were analyzed.The lift loaded braking tests were performed for two-axle automobile,dualaxis automobile,three-axle automobile and three-axis trailer.The test results show that it is not suitable for two-axle and dual-axis automobiles to adopt lift loaded braking test because the test results are not obvious.For three-axle automobile,the lifted axle load is increased by 79.2% after lift loading,and the braking force is increased by 46.4%.The increasing range of axle load after lift loading is great,which indicates that it is suitable to utilize platform lift loading method on intermediate axle of three-axle automobiles.For three-axis trailer,the lifted axle load has significant change after lift loading,which shows that it is suitable to adopt platform lift loading method to conduct loaded braking tests.
Author: HUANG Wanyou YU Mingjin FAN Yanyan TANG Xiangchen TIAN Xuesong
作者单位: 山东交通学院汽车工程学院,山东济南,250357 山东交通学院图书馆,山东济南,250357 山东新凌志检测技术有限公司,山东济南,250000
年,卷(期): 2017, 38(6)
分类号: U467.5
在线出版日期: 2018年3月13日
基金项目: 国家自然科学基金资助项目,山东省大型科学仪器设备升级改造技术研究专项,山东省科技发展计划项目