UN/ECE R transposition. • Informal document to GRPE january • Need to update Regulation 49 for «Euro VI requirements». • Informal document . Download/Embed scientific diagram | ECE R49 mode cycle used for automotive from publication: Automotive test drive cycles for emission measurement and. Download Citation on ResearchGate | On Feb 1, , Y. Xu and others published Comparison between ECE R49 and ESC test cycles for heavy-duty vehicle.

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Each step has a duration of seconds, with emission sampling periods defined in agreement with the weighting factors, which are characteristic of the conditions of each region or country. When tested with a qualified deteriorated component, the OBD system malfunction indicator shall be activated in accordance with Annex 9B. It may be kept by the Type Approval Authority, or, at the discretion of the Type Approval D49, may be retained by the manufacturer.

Pass the series if. Name and address of manufacturer’s authorised representative if any.

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Obtaining test fuels Due to the fact that it was not possible to have all of the fuel streams simultaneously with the four engines used, tests were performed for each engine with a different set of fuels. When applying for type approval, manufacturers shall present to r4 Type Approval Authority information showing that the NO x system retains its emission control function during all conditions regularly pertaining in the region e.

Adjustable load curve dynamometer setting information if used 6. Annex 3 to this Regulation gives examples d49 arrangements of approval marks. If the test statistic result is less than the fail decision number for the sample size given in Table 2, a fail decision is reached for the pollutant. Languages, formats and link to OJ. If no decision is reached, the manufacturer may at any time decide to stop testing.

In this case, the running-in procedure shall be conducted by the manufacturer who shall undertake not to make any adjustments to those engines. Table 10 contains a summary of the results. The tests were performed in the ICP test cell using ecd engines indicated in Table 9.

For natural gas fuelled engines, all these tests may be conducted with market fuel in the following way:.

The high levels of emissions and the lack of change in the levels of emission in Engine 1 traditional technology with many hours of use with the fuels evaluated, compared to the differences in emissions and reduction rates in the other engines evaluated, make evident the importance of considering fuel quality along with mechanical conditions and engine technology when dealing with aspects related to the reduction of emissions.


The extended documentation package shall include information on the operation of all AES ecw BES, including a description of the parameters that are modified by any AES and the boundary conditions under which the AES operate, and indication of which AES and BES are likely to be active under the conditions of the test procedures set out in Annex The vehicle or engine manufacturer’s name or trade mark.

Contracting Parties applying this Regulation shall, from the date of entry into force of the 06 series of amendments to this Regulation, grant an ECE approval to an engine system or vehicle only if it complies with:. Production definitively discontinued Final test result with DF. The following procedure is used for each of the pollutants given in paragraph 5. Maximum exhaust eve at the point in the exhaust pipe s adjacent to the outer flange s of the exhaust manifold s or turbocharger s K.

Number of main adjustment points. Make and type of the air-flow sensor.

Pass and fail decision numbers of Appendix 2 sampling eece. When the Type Approval Authority determines that the quality of production seems unsatisfactory, it may request a verification of the conformity of production of the OBD system.

It is observed that indeed the emissions from diesel engines can be reduced by decreasing FBP or sulfur content in commercial diesel fuel. Valve timing ecs equivalent data 3. Conformity of production shall be assessed in accordance with the specific conditions laid down in this paragraph and the relevant statistical methods laid down in Appendices 1, 2 and 3. The manufacturer shall fulfil the specific requirements, together with the associated test procedures, set out in Annex The conformity eec the ECU torque signal is considered to be demonstrated if the torque signal remains within the tolerances set out in paragraph 9.

At high idle speed, the carbon monoxide content by volume of the exhaust gases shall not exceed 0,2 per cent vol. Actual volume of the complete Exhaust system vehicle and engine dce dm 3. This material shall be retained by the Type Approval Authority. The results of PM emission for commercial diesel 0.


Make and type of the throttle housing. When applying the special provisions described in paragraph If we observe the levels of emissions and compare them with European standards, we see that with low sulfur fuels in Euro II technology engines, emissions are very close to the values specified, as shown in Figure 5. As regard to the compliance of the system ensuring the correct operation of NO x control measures, the installation shall, according to Appendix 4 t49 Annex 11, meet the manufacturer’s installation requirements as specified in Part 1 of Annex 1.

In the case of components and separate technical units, location and method of affixing of the approval mark. Technical requirements for on-board diagnostic systems OBD.


EUR-Lex – X(01) – EN – EUR-Lex

Shares of time of the trip characterised by urban, rural and motorway operation as described in paragraph 4. The manufacturer shall ensure that the OBD system complies with the requirements set out in Annex 9A, including the OBD in-use performance requirements, under all normal and reasonably foreseeable driving conditions, including the conditions of normal use specified in Annex 9B.

As from the official date of entry into force of the 06 series of amendments, no Contracting Party applying this Regulation shall refuse to grant approval under this Regulation as amended by the 06 series of amendments. Modification and extension of ede of the approved type.

Emission Test Cycles: ECE R49

Catalytic converters, deNO x devices and particulate filters shall be considered to be eec control devices for the purposes of this Regulation. Penalties for non-conformity of production Specific information related to gas fuelled engines and dual-fuel engines for heavy-duty vehicles in the case of systems laid out in a different manner, supply equivalent information. Speed at which cut-off starts under load min —1.

However, the maximum carbon monoxide content shall not exceed 0,3 per cent vol. In accordance with the ISO