Browse Publications Technical Papers 2017-01-1893
2017-06-05

Development of ECE R51.03 Noise Emission Regulation 2017-01-1893

This paper will examine the regulatory development process, discuss the technical principles of the Economic Commission for Europe (ECE), R51.03 test, and discuss the overall objectives of the ECE R51.03 noise emission regulation. The development of this global noise emission regulation was a multi-stakeholder process which has resulted in new test procedures and new noise emission regulation principles. New test procedures based on ISO 362-1:2015 move the test basis to representative in-use noise emission, independent of vehicle propulsion technology. As part of the regulatory development, a monitoring program was conducted by the European Union to assess the applicability of the proposed test to provide representative vehicle noise emission results. The monitoring results also provided the basis to determine equivalent stringency between the test procedures of ECE R51.02 and R51.03. Additional off-cycle requirements provide assurance the reported test results are representative of on-road vehicle noise emissions over a vehicle operating range relevant to environmental noise.

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