| 电喷发动机应对“国Ⅲ”排放耐久试验要求的解决方案 |
| |
| 引用本文： | 胡春明,宋玺娟,陈耀强.电喷发动机应对“国Ⅲ”排放耐久试验要求的解决方案[J].拖拉机与农用运输车,2010,37(1):24-25,28. |
| |
| 作者姓名： | 胡春明 宋玺娟 陈耀强 |
| |
| 作者单位： | 1. 天津大学内燃机研究所,天津,300072
2. 四川大学化学学院绿色化学与技术教育部重点实验室,成都,610064 |
| |
| 基金项目： | 天津市应用基础研究重点项目，天津市科技支撑计划重点项目 |
| |
| 摘 要： | 中国摩托车第三阶段排放标准中增加了关于排放限值和耐久性试验的要求,对电喷系统的空燃比控制及尾气后处理装置的空燃比"催化窗口"的高温稳定性提出了更高要求。文章提出了氧传感器自适应控制策略并采用了新研制的基于高性能稀土储氧材料的新型三元催化剂。高性能稀土储氧材料具有高的比表面和高的储氧量以及优异的高温稳定性。整车试验结果表明,新型三元催化剂不仅具有优异的初始活性,而且具有良好的抗老化特性,能够满足电喷发动机排放耐久试验的苛刻要求。
|
| 关 键 词： | 第三阶段排放法规 三元催化剂 自适应控制策略 电喷系统 |
Solutions to EFI Engine Durability Testing Requirements of China Stage Ⅲ Emission Regulation |
| |
| HU Chun-ming,SONG Xi-juan,CHEN Yao-qiang.Solutions to EFI Engine Durability Testing Requirements of China Stage Ⅲ Emission Regulation[J].Tractor & Farm Transporter,2010,37(1):24-25,28. |
| |
| Authors: | HU Chun-ming SONG Xi-juan CHEN Yao-qiang |
| |
| Institution: | HU Chun-ming1,SONG Xi-juan1,CHEN Yao-qiang2 (1.Internal Combustion Engine Research Institute,Tianjin University,Tianjin 300072,China,2.Key laboratory of Green Chemistry , Technology,Ministry of Education,College of Chemistry,Sichuan University,Chengdu 610064,China) |
| |
| Abstract: | Equivalent to Euro Ⅲ emissions regulation,strict demands for engine management system(EMS) and three way catalysts(TWC) are presented,as which has own characteristics on durability testing cycles.This paper introduces that EMS coupled with A/F control self-learning strategy,and a new-type three-way catalysts with a high-performance Ce0.55Zr0.35Y0.05La0.05O2 and a high surface area La/Al2O3.Test results revealed that Ce0.55Zr0.35Y0.05La0.05O2 solid solution has superior textual and oxygen storage properties,and La/Al2O3 has superior textual properties.The results from the vehicle show that the new-type catalyst can easily meet China stage Ⅲ emission requirements. |
| |
| Keywords: | Stage Ⅲ emissions regulation Three way catalysts(TWC) A/F control self-learning strategy Electronic Fuel Injection(EFI) system |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
