排放中性诊断技术研究

Research on Emission Neutral Diagnostics Technology

摘要: 本文围绕排放中性诊断(Emission Neutral Diagnostics, END)技术及其触发的排放中性默认操作(Emission Neutral Diagnostics Action, ENDA)在汽车行业的应用展开研究，以应对更严格的环保法规。研究深入对比美标、欧盟相关法规与中国轻型车国六排放标准中END及相近概念的差异，如定义、豁免要求、申报管理等，指出当前国标END法规存在的问题。同时，提出下一阶段END法规的改进建议，包括完善END判定条件、纳入车载诊断系统(OBD)演示试验以及建立申报管理规范等。在此基础上，提出了END概念在新能源汽车三电系统(电池、电机、电控)诊断中的延伸应用的建议。这些研究内容有助于提升汽车环保性能，推动汽车行业可持续发展，增强研究的全面性与前瞻性。

Abstract: This paper focuses on the application of Emission Neutral Diagnostics (END) and the Emission Neutral Diagnostics Action (ENDA) triggered by it in the automotive industry, aiming to address increasingly stringent environmental regulations. The study conducts an in-depth comparison of differences in END and similar concepts (including definitions, exemption requirements, and declaration management) among American standards, relevant EU regulations, and China’s National VI emission standards for light-duty vehicles, and identifies existing issues in the current national standard END regulations. Meanwhile, it puts forward suggestions for improving END regulations in the next stage, such as refining END determination criteria, integrating END into On-Board Diagnostics (OBD) demonstration tests, and establishing standardized declaration management practices. On this basis, the paper proposes recommendations for the extended application of the END concept in the diagnosis of the three-electric system (battery, motor, electronic control) of new energy vehicles. These research contents are conducive to enhancing the environmental performance of automobiles, promoting the sustainable development of the automotive industry, and improving the comprehensiveness and forward-looking nature of the research.