| 柴油机排气氧化催化转化器故障诊断方案道路工况仿真分析 |
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| 引用本文： | 吕明,阎凯,宁智.柴油机排气氧化催化转化器故障诊断方案道路工况仿真分析[J].小型内燃机与摩托车,2011,40(5):74-79. |
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| 作者姓名： | 吕明 阎凯 宁智 |
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| 作者单位： | 北京交通大学机电工程学院 北京100044 |
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| 基金项目： | 国家自然基金资助项目，北京市自然科学基金资助项目，国家863课题 |
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| 摘 要： | 柴油机排气氧化催化转化器(DOC)的在线故障诊断是柴油车OBD系统的重要内容之一.本文根据DOC在线故障诊断技术研究的需要,对以DOC前后的排气温度和排气背压作为DOC催化剂老化、载体堵塞以及破损等失效故障诊断参数的在线故障诊断方案进行了道路工况下的仿真分析.研究结果表明,在一定的柴油车运行道路工况下,以DOC前后的排...
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| 关 键 词： | 柴油机 氧化催化转化器(DOC) 故障诊断 道路工况 仿真分析 |
Simulation Analysis of Road Driving Cycle on the Technique Plan of Fault Diagnosis of Diesel Oxidation Catalyst |
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| Lv Ming,Yan Kai,Ning Zhi.Simulation Analysis of Road Driving Cycle on the Technique Plan of Fault Diagnosis of Diesel Oxidation Catalyst[J].Small Internal Combustion Engine and Motorcycle,2011,40(5):74-79. |
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| Authors: | Lv Ming Yan Kai Ning Zhi |
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| Affiliation: | Lv Ming,Yan Kai,Ning Zhi College of Mechanical and Electrical Engineering,Beijing Jiaotong University(Beijing,100044,China) |
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| Abstract: | The online fault diagnosis technique of diesel oxidation catalyst(DOC) is one of the important contents of diesel vehicle OBD system.In this paper,the online fault diagnosis plan using the temperature and pressure before and after DOC as the fault diagnosis character parameters of DOC was analyzed under different road driving cycles by using the simulation method.The results show that on some certain diesel vehicle operation road conditions,it is possible to diagnose the faults of the DOC by using the tempe... |
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| Keywords: | Diesel engine Oxidation catalyst(DOC) Failure diagnosis Road driving cycle Simulation |
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