| 简易瞬态工况法测量准确度影响因素研究 |
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| 引用本文： | 葛蕴珊,张学敏,高力平,韩秀坤,钟科.简易瞬态工况法测量准确度影响因素研究[J].汽车工程,2006,28(4):335-339. |
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| 作者姓名： | 葛蕴珊 张学敏 高力平 韩秀坤 钟科 |
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| 作者单位： | 1. 北京理工大学机械与车辆工程学院,北京,100081
2. 北京理工大学机械与车辆工程学院,北京,100081;中国农业大学工学院,北京,100083 |
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| 基金项目： | 北京市科委项目(H020620470120)资助。 |
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| 摘 要： | 论述国家颁布的在用汽油车排放标准中简易瞬态工况法(Vm as系统)的测试原理和测量系统组成,分别采用不同的底盘测功机、不同的测试模式进行试验,分析了影响Vm as测量汽车排气污染物准确度的因素。在进行大量试验的基础上,提出了为提高测量准确度和重复性,车辆在试验前应进行必要的预处理,使用电涡流测功机应该附加机械飞轮。
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| 关 键 词： | 在用车 排放测试 简易瞬态工况 |
| 收稿时间： | 2005-03-29 |
| 修稿时间： | 2005-03-292005-06-03 |
A Study on Factors Affecting the Accuracy of Short Transient Driving Cycle Testing |
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| Ge Yunshan,Zhang Xuemin,Gao Liping,Han Xiukun,Zhong Ke.A Study on Factors Affecting the Accuracy of Short Transient Driving Cycle Testing[J].Automotive Engineering,2006,28(4):335-339. |
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| Authors: | Ge Yunshan Zhang Xuemin Gao Liping Han Xiukun Zhong Ke |
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| Institution: | 1. School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081 ; 2. College of Engineering, China Agricultural University, Beijing 100083 |
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| Abstract: | The principle and constitution of the short transient driving cycle testing system are discussed.A series of tests are carried out with different chassis dynamometers and testing modes to analyze the main factors affecting test accuracy.On the base of these tests,a suggestion is put forward that necessary pretreatment should be done on vehicle before testing and an additional mechanical flywheel should be added for improving the accuracy and repeatability of testing when eddy dynamometer is used. |
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| Keywords: | In-use vehicles Emission test Short transient driving cycle |
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