基于加载减速法检验测得轮边功率分析  

Analysis of measured wheel edge power based on Lug-Down method

作　　者：杨国亮 刘杰 苍美岐 YANG Guoliang;LIU Jie;CANG Meiqi(Shijiazhuang Huayan Transportation Technology Co.,Ltd.,Shijiazhuang050000,China;Jiangsu Kailuo Automobile Testing Technology Co.,Ltd.,Wuxi 214000,China;Hebei Guosu Metrology Testing Co.,Ltd.,Shijiazhuang 050011,China)

机构地区：[1]石家庄华燕交通科技有限公司,中国石家庄050227 [2]江苏凯若汽车检测技术有限公司,中国无锡214000 [3]河北国溯计量检测有限公司,中国石家庄050011

出　　处：《汽车与安全》2021年第10期94-98,共5页Auto & Safety

摘　　要：柴油车进行加载加速法检验时进行轮边功率的测试,在功率扫描阶段,由于是转鼓线速度不稳定,存在加速度引起的加载力从而引起轮边功率的变化,而在车速稳定的两点测试的VelMaxHP点阶段不存在加速度(加速度为0),也就缺少此功率,所以功率扫描阶段的轮边功率要比两点测试的VelMaxHP点阶段的轮边功率要大,且两者的比例关系与底盘测功机基本惯量和转鼓速度变化率有直接关系。The wheel edge power is tested when carry out the test for diesel vehicle with lug-down method.In the power scanning stage,due to the instable linear speed of rollers,there is wheel edge power change caused by the load force which caused by acceleration,but there is no acceleration(acceleration is 0)in the VelMaxHP point stage of two point test in the stable speed state,and there is no wheel edge power accordingly,therefore the wheel edge power in the stage of power scanning is greater than the wheel power in the stage of VelMaxHP point of the two point test,and the proportion relation of these two is directly related to the variation rate between of the roller rotating speed and the basic inertia of the dynamometer.

关 键 词：功率扫描阶段 VelMaxHP点阶段 轮边功率 比值 

分 类 号：X831[环境科学与工程—环境工程]