ECE R49 PDF

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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The availability of the data stream information required in paragraph 9. Diesel with a sulfur content of ppm was obtained by using a commercial diesel ppm sulfur through hydrotreatment in the pilot plant.

Together r9 the application, the manufacturer shall provide a documentation package that fully explains any element of design which affects emissions, the emission control strategy of the engine system, the means by which the engine system controls the output variables r449 have a bearing upon emissions, whether that control is direct or indirect, and fully explains the warning and inducement system required by paragraphs 4 and 5 of Annex For dual-fuel engines, fuel consumption WHSC test in diesel mode d: The same Contracting Party shall not assign the same number to another engine type or vehicle type.

Number and capacity of each tank. Modification and extension of approval of the approved type. The general requirements, including the specific requirements for electronic system security, shall be those set out in paragraph 4 of Annex 9B of this Regulation and those described in paragraph 2 of Annex r9.

Emission Test Cycles: ECE R49

On delivery to the customer the engine shall bear a label as specified in paragraph 4. The significant variable that affects PM emissions is not FBP itself, but density, aromatic poly-aromatic content and sulfur content. When the Type Approval Authority determines that the quality of production seems unsatisfactory, it may request a verification of ee conformity of production of eec OBD system.

When boost control is supplied, state the characteristic fuel delivery and boost pressure versus engine speed.

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Reserved for Vehicle body work type not applicable 6. Make trade name of manufacturer.

When appropriate, manufacturer reference of the documentation package related to the installation on the vehicle of the system ensuring the correct operation of NO x control measures of an approved engine. The identification markings referred to in paragraph 4. Application for type approval of a vehicle with regard to emissions 3.

CO 2 mass window duration s. When applying the special provisions described in paragraph Make and type of air pressure sensor.

The parent engine shall meet the emission requirements on the reference fuels A and B as specified in Annex 5 without any readjustment to the fuelling between the two tests. Parameters for defining an OBD-engine family The OBD-engine family shall be determined by basic design parameters that shall be common to engine systems within the family, in accordance with paragraph 6. Limit of validity of type approvals Parameters defining the engine family The engine family, as determined by the engine manufacturer shall comply with paragraph 5.

For the engine analyzed, the addition of kerosene variation in density is not a determining parameter to improve emissions. OBD components r9 the vehicle.

EUR-Lex – X(01) – EN – EUR-Lex

Test cycle used for the verification of the OBD system 7. The manufacturer dce ensure that the emissions test results comply with the applicable limit value under the test conditions specified in this Regulation.

Any repair or modification referred to in paragraph 9. Final test result with DF. Effect of reducing sulfur content. Exhaust back pressure shall not exceed that declared for the engine type approval in Part 1 of Annex 1; 6.

Please fill in here the upper and lower values for each variant. In the case of approvals to the special provisions laid down in paragraph The parent engine shall meet the emission requirements on the reference fuels G R and G 25 in the case of natural gas, or the reference fuels A and B in the case of LPG, as specified in Annex 5.

Maximum power … kW 5. The effect of density reduced by adding kerosene on emissions is less significant than that of the other alternatives. For dual-fuel engines the approval mark shall contain a series of digits after the national symbol, the purpose of which is to distinguish for which dual-fuel engine type and with which range of gases the approval has been granted. But levels of sce vary from one engine to another depending on technology and working time.

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Appendix 2 Procedure for production conformity testing when standard deviation is unsatisfactory or unavailable A. Requirements for approval regarding the on-board diagnostic systems 4. Acceptable Exhaust system volume: In the case of natural gas engines, the ratio of the emission results “r” shall be determined for each pollutant as follows: Work window conformity factor.

For the particular case of Engine 2, PM emissions can go from 0. The production is deemed to conform if at least three engines out of the further random sample of four engines meet the requirements of the tests described in Annex 9B. Manufacturer reference of the OBD related information required by of paragraphs 3. The manufacturer shall provide a documentation package that fully explains any element of design which affects emissions, the emission control strategy of the engine system, the means by which the engine system controls the output variables which have a bearing upon emissions, whether that control is direct or indirect, and fully explains the warning and inducement system required by Annex Requirements to ensure correct operation of NO x control measures.

Speed at which cut-off starts under load min —1.

The test statistic r94 is the ratio and shall be used to determine whether the series has passed or failed as follows: Indicating their occurrence by means of an alert system; and. Labels shall be secured to an engine part necessary for normal engine operation and not normally requiring replacement during engine life.