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| 基于车载远程监控的重型柴油车NOx排放评估方法研究 |
| Study on Evaluation of NOx Emission from Heavy duty Diesel Based on Vehicle Remote Monitoring |
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| DOI： |
| 中文关键词: NOx 远程监控 重型柴油车 车载T BOX 评估方法 |
| 英文关键词: NOx Remote monitoring Heavy duty diesel On board T BOX Evaluation method |
| 基金项目:国家重点研发计划基金资助项目（2022YFC3703600） |
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| 中文摘要: |
| 对某重型车的实际道路行驶过程中远程排放监控的NOx数据和PEMS设备测试数据对比分析。结果表明，两者的一致性较好，远程监控的NOx数据用于表征车辆实际道路的NOx排放特征具备可信性和可行性。基于远程排放监控数据，使用短行程重构PEMS法，建立车辆工况曲线重构方法和基于功基窗口法的排放评估模型，对车辆在实际道路上的排放进行评估计算，并与PEMS测试结果对比验证。研究结果表明，该短行程重构模型能有效识别车辆排放变化和超标情况，可以作为国六标准在用重型车NOx排放监控的新方法和手段。 |
| 英文摘要: |
| The NOx data from remote emission monitoring and PEMS test were compared and analyzed during actual road running of a heavy duty diesel, and the results showed that they were consistent. The NOx data from remote monitoring was reliable and feasible for characterizing NOx emission characteristics on actual roads. According to remote emission monitoring data, the short trip reconstruction PEMS was used to establish vehicle operating condition curve reconstruction method and an emission evaluation model based on work-based window method. The vehicle emissions on actual roads were evaluated and calculated, and compared with PEMS test results for verification. The research results showed that the short trip reconstruction model could effectively identify changes in emissions and excessive emissions of vehicles, and could be used as a new method and means for monitoring NOx emission from heavy duty vehicles that met China Ⅵ emission standards. |
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