UNR 41 04 ASEP Overview R 51 ASEP

UN-R 41. 04 ASEP Overview R 51 ASEP IWG 11 -13 July 2017

　Composition of R 41 -04 regulation sentence Contents 1. Scope 2. Definitions, terms and symbols 3. Application for approval 4. Markings 5. Approval 6. Specifications 7. Modification and extension of the approval of the motor cycle type or of the type of exhaust or silencing system(s) 8. Conformity of production 9. Penalties for non-conformity of production Annexes 1 Communication 2 Arrangements of approval marks 3 Methods and instruments for measuring noise made by motor cycles 4 Specifications for the test site 5 Exhaust or silencing systems containing fibrous material 6 Maximum limits of sound levels 10. Production definitively discontinued 7 Additional Sound Emission Provisions (ASEP) 11. Names and addresses of Technical Services responsible for conducting approval tests, and of the Type Approval Authorities 8 Statement of compliance with the Additional Sound Emission Provisions (ASEP) 12. Transitional provisions 2

6. Specifications 6. 3. Additional sound emission provisions 6. 3. 1. The motor cycle manufacturer shall not intentionally alter, adjust, or introduce any device or procedure solely for the purpose of fulfilling the noise emission requirements of this Regulation, which will not be operational during typical onroad operation. 6. 3. 2. The vehicle type to be approved shall meet the requirements of Annex 7 to this Regulation. If the motor cycle has user selectable software programs or modes which affect the sound emission of the vehicle, all these modes shall be in compliance with the requirements in Annex 7. Testing shall be based on the worst case scenario. 6. 3. 3. In the application for type approval or for modification or extension of a type approval the manufacturer shall provide a statement in accordance with Annex 8 that the vehicle type to be approved complies with the requirements of paragraphs 6. 3. 1. and 6. 3. 2. of this Regulation. 6. 3. 4. The competent authority may carry out any test prescribed in this Regulation. The point Prohibited matters All the modes fill the requirement of ASEP Annex 8 Statement by manufacturer An ASEP test is not certainly enforcement.

Annex 8 Statement of compliance with the Additional Sound Emission Provisions (ASEP) (Maximum format: A 4 (210 x 297 mm)) . . (Name of manufacturer) attests that vehicles of this type. . . . . (type with regard to its noise emission pursuant to Regulation No. 41) comply with the requirements of paragraph 6. 3. of Regulation No. 41. . . (Name of manufacturer) makes this statement in good faith, after having performed an appropriate evaluation of the sound emission performance of the vehicles. Date: . . . . . . . . Name of authorized representative: . . . . . Signature of authorized representative: . . . . .

Annex 7 1. 2. 2. 2. 3. 2. 4. 2. 5. 2. 6. 3. 3. 1. 3. 2. 2. 3. Additional Sound Emission Provisions (ASEP) Scope Additional sound emission requirements Measuring instruments Acoustical environment, meteorological conditions and background noise Microphone positions and conditions of the vehicle General operating conditions ASEP control range ASEP limits Testing compliance by measurements General ASEP reference test conditions Test procedure Test speed and gear selection Data processing and reporting

Annex 7 1. Scope 1. 1. This annex applies to vehicles of category L 3 with PMR >50. 1. 2. Vehicles with variable gear ratios or automatic transmission with non-lockable gear ratios are exempted from the requirements of this annex, if the vehicle manufacturer provides technical documents to the type approval authority showing, that the vehicle's engine speed at BB' does neither exceed n. BB' + 0. 05 * (S – nidle) nor fall below n. BB' – 0. 05 * (S – nidle) for any test condition inside the ASEP control range defined in paragraph 2. 5. below, where n. BB' is the average engine speed at BB' from the three valid acceleration tests according to paragraph 1. of Annex 3. ASEP exemption v. BB’=80 km/h n. BB' + 0. 05 * (S – nidle) ● n. BB' – 0. 05 * (S – nidle) S : rated engine speed nidle : Engine speed at idle Engine speed min-1 n. BB' of acceleration test with VPP’=50 km/h ● v. PP' = 50 km/h v. AA’=20 km/h 20 km/h 80

Annex 7 2. Additional sound emission requirements 2. 1. Measuring instruments The requirements for the measurement equipment are identical to those defined in paragraph 1. 1. of Annex 3 for the tests of the motor cycle in motion. 2. 2. Acoustical environment, meteorological conditions and background noise The requirements concerning the acoustical environment, the meteorological conditions and the background noise are identical to those defined in paragraph 1. 2. of Annex 3 for the tests of the motor cycle in motion. 2. 3. Microphone positions and conditions of the vehicle The requirements concerning the microphone positions and the conditions of the vehicle are identical to those defined in paragraphs 1. 3. 1. and 1. 3. 2. of Annex 3 for the tests of the motor cycle in motion. 2. 4. General operating conditions The general operating conditions are identical to those defined in paragraph 1. 3. 3. 1. of Annex 3 for the tests of the motor cycle in motion. Refer to Annex 3

Annex 7 2. Additional sound emission requirements 2. 5. ASEP control range The requirements of this annex apply to any vehicle operation with the following restrictions: (a) v. AA' shall be at least 20 km/h (b) v. BB' shall not exceed 80 km/h Test course overview (c) n. AA' shall be at least 0. 1 * (S – nidle) + nidle (d) n. BB' shall not exceed 0. 85 * (S – nidle) + nidle for PMR < 66 3. 4 * PMR-0. 33 * (S – nidle) + nidle for PMR > 66 Note: If the vehicle has more than one gear, the first gear shall not be used. and (Throttle fully closed) B B' P P' Microphones A S : rated engine speed nidle : Engine speed at idle (Wide open throttle) A'

ASEP control range Example v. BB' < 80 km/h n. BB' < 0. 85 * (S - nidle) + nidle (PMR < 66) 　　　 3. 4 * PMR - 0. 33 * (S - nidle) + nidle (PMR > 66) 1 st 2 nd 3 rd 4 th 5 th ASEP control range n. AA' > 0. 1 * (S - nidle) + nidle v. AA' > 20 km/h

Annex 7 2. Additional sound emission requirements 2. 6. ASEP limits 1 The maximum noise level recorded during the passage of the motorcycle through the test track shall not exceed: Lwot, (i) + (0 * (n. PP' – nwot, (i)) / 1, 000) + 3 for n. PP' < nwot, (i) and Lwot, (i) + (5 * (n. PP' – nwot, (i)) / 1, 000) + 3 for n. PP' ≥ nwot, (i) From the date in paragraph 12. 7. , maximum noise level shall not exceed: From 1 st January 2017 Lwot, (i) + (1 * (n. PP' – nwot, (i)) / 1, 000) + 3 for n. PP' < nwot, (i) and Lwot, (i) + (5 * (n. PP' – nwot, (i)) / 1, 000) + 3 for n. PP' ≥ nwot, (i) Where Lwot, (i) and n. PP' have the same meaning as in paragraph 1. of Annex 3 and nwot, (i) refers to the corresponding engine speed when the front of the vehicle passes the line PP'. 1 When compliance with these limits is checked, values for Lwot(i) and nwot(i) shall not be taken from type approval documents but newly determined by measurements as defined in paragraph 1. of Annex 3, however using the same gear (i) and the same pre-acceleration distance as during type approval.

ASEP Limit (shown by the graph) Example Line with slope of 5 d. B/1000 min-1 Lwot, (i) Line with slope of 1 d. B/1000 min-1 3 d. B Reference point　para. 3. 2. 2. (i) full throttle acceleration test ･v. PP’ = 50 km/h ･the same gear(i) as tested in Annex 3 nwot, (i) refers to the corresponding engine speed when the front of the vehicle passes the line PP'.

Annex 7 3. Testing compliance by measurements 3. 1. General The Type Approval Authority as well as the Technical Service may request tests to check the compliance of the motorcycle with the requirements of paragraph 2 above. To avoid undue work load testing is restricted to the reference points defined in paragraph 3. 2. below and up to two additional operating conditions other than the reference points but inside the ASEP control range. TA Authority, TS may request test 3. 2. At least 2 reference points (para. 3. 2. ) Allowed up to two additional points ASEP reference test conditions 3. 2. 1 Test procedure When the front of the vehicle reaches AA', the throttle shall be fully engaged and held fully engaged until the rear of the vehicle reaches BB'. The throttle shall then be returned as quickly as possible to the idle position. Pre-acceleration may be used if acceleration is delayed beyond AA'. The location of the start of the acceleration shall be reported.

Annex 7 3. Testing compliance by measurements 3. 2. 2. Test speed and gear selection The vehicle shall be tested at each of the following operating conditions: 2(two) Reference points (i) v. PP' = 50 km/h Reference point para. 3. 2. 2. (i) The selected gear (i) and pre-acceleration condition shall be the same as those used in the original type approval test of Annex 3 of this Regulation. (ii) v. BB' corresponding to Reference point para. 3. 2. 2. (ii) n. BB' = 0. 85 * (S – nidle) + nidle for PMR < 66; and n. BB' = 3. 4 * PMR-0. 33 * (S – nidle) + nidle for PMR > 66 Imaged as upper limit point v. BB' shall not exceed 80 km/h How to select gear The selected gear shall be 2 nd. If the 3 rd gear satisfies requirements of n. BB' and v. BB', 3 rd shall be used. If the 4 th gear satisfies requirements of n. BB' and v. BB', 4 th shall be used.

Annex 7 3. Testing compliance by measurements 3. 2. 3. Data processing and reporting The requirements of paragraph 1. 4. of Annex 3 shall be applied. In addition the engine speed values at AA', BB', and PP' in units of min-1 shall be mathematically rounded to the nearest integer for further calculations. For a given test condition the three individual engine speeds shall be averaged arithmetically. The final sound pressure levels for the full throttle acceleration shall not exceed the limits specified in paragraph 2. 6. above. Annex 3 1. 4. 1. The first three valid consecutive measurement results for each test condition, within 2. 0 d. B(A) Number of measurement: 3 (three)

ASEP Limit (shown by the graph) Test Result Example Line with slope of 5 d. B/1000 min-1 Reference point (para. 3. 2. 2. (ii)) Lwot, (i) Line with slope of 1 d. B/1000 min-1 3 d. B Reference point (para. 3. 2. 2. (i)) full throttle acceleration test ･v. PP’ = 50 km/h ･the same gear(i) as tested in Annex 3 Any 2 measurements shall be within this area. nwot, (i) refers to the corresponding engine speed when the front of the vehicle passes the line PP'.

8. Conformity of production 8. 3. For conformity of production, the manufacturer shall make a renewed declaration that the type still fulfils the requirements of paragraphs 6. 3. 1. and 6. 3. 2. of this Regulation. In case of testing according to Annex 7, the measured sound levels shall not exceed by more than 1. 0 d. B(A) the limits given in paragraph 2. 6. of Annex 7. renewed declaration this type BBB (type with regard to its noise emission pursuant to Regulation No. 41) comply with the requirements of paragraph 6. 3. of Regulation No. 41. AAA (Name of manufacturer) makes this statement in good faith, after having performed an appropriate evaluation of the sound emission performance of the vehicles. Date: XX. YY. ZZZZ Name of authorized representative: CCC Signature of authorized representative: DDDD Full-throttle noise value d. B AAA(Name of manufacturer) attests that vehicles of Test result image <Non-conformance area> 5 d. B/1000 rpm slope 1 d. B/1000 rpm slope Regulatory value 3 d. B+1 d. B <Conformance area> 0　Engine revolutions in front of microphone n. PP’

Example of ASEP measurement

Example of ASEP measurement G vehicle: MT model Maximum output=29 k. W; vehicle weight=168 kg; PMR＝ 119. 3; S＝ 14000 rpm; nidle＝ 1600 rpm Desk study results of test conditions Upper limit point n. BB’＝ 10300 rpm Gear VBB’（km/h） 2 nd 61. 8 rd 3 77. 7 th 4 93. 8 ◆Reference point para. 3. 2. 2. (i) 　Third gear VPP’=50 km/h (Lurban: Measured with third gear) ◆Reference point para. 3. 2. 2. (ii) 　n. BB’=3. 4×PMR-0. 33（S-nidle）+nidle　=10300 　VBB’≦ 80 km/h It is expected that 3 rd gear will be employed for reference point para. 3. 2. 2. (ii) measurement. Final test result Gear Reference point para. 3. 2. 2. (ii) 3 rd 1 2 3 Average L 76. 1 76. 8 76. 7 76. 5 Reference point rara. 3. 2. 2. (i) R VAA’ VPP’ VBB’ 77. 6 41. 9 50. 1 57. 4 76. 8 42. 4 50. 7 58. 1 77. 2 40. 5 49. 2 57. 0 77. 2 41. 6 50. 0 57. 5 n. PP’ 6589 6668 6471 6576 L 82. 7 81. 9 82. 7 82. 4 Reference point (para. 3. 2. 2. (ii) R VAA’ VPP’ VBB’ 81. 9 65. 9 71. 8 77. 9 82. 7 66. 4 71. 9 77. 9 82. 2 67. 0 72. 8 78. 1 82. 3 66. 4 72. 2 78. 0 n. PP’ 9443 9457 9575 9492 Regulatory value （～ 2016） （2017～ Gear ） Reference point para. 3. 2. 2. (i) 3 rd 1 2 3 Average n. BB’ 10246 10272 10254

Example of ASEP measurement - If exemption provisions apply. ASEP exemption: If the variation of the exit engine speed n. BB’ relative to the reference point is below 0. 05×（S－ nidle), then the ASEP does not apply. Vehicle H: CVT model; Max. output = 37. 7 k. W; Vehicle weight =250 kg; PMR＝ 116; S＝ 7500 rpm; nidle=1300 rpm <Reference> Final test result ◆Reference point para. 3. 2. 2. (i) Lwot　(d. B） 　VPP’=50 km/h ◆Reference point para. 3. 2. 2. (ii) 　n. BB’=3. 4×PMR-0. 33（ｓ-nidle）+nidle　=5691 Std. Lower point in control range Reference point para. 3. 2. 2. (i) Reference point para. 3. 2. 2. (ii) 　VBB’≦ 80 km/h n. PP’　(rpm） Test result Vehicle speed　（km/h） Engine speed　（rpm） Noise(d. B) Condition VAA’ VPP’ VBB’ Condition n. AA’ n. PP’ n. BB’ L R Reference point (ii) VBB’≦ 80 72. 5 75. 4 80. 0 n. BB’≦ 5691 3879 4585 4810 78. 3 79. 3 Reference point(i) － 41. 6 50. 0 60. 1 － 3112 4437 4804 77. 5 80. 2 VAA’≧ 20 20. 0 40. 6 56. 2 n. AA’≧ 1920 2379 5094 5112 80. 6 82, 3 lower point Differences from the value at reference point n. BB’ 4, 804 rpm are below “ 0. 05×（Snidle）=310 rpm” for both upper and lower points, and therefore the exemption applies. As it is unable to adjust the engine speed, measurements are made at VAA’=20 km/h and VBB’=80 km/h.

Questions or comments can be addressed to Daniela Leveratto, IMMA Technical Director, at the following email: d. leveratto@immamotorcycles. org Thank you!