UN R63 Supplement 4 (02 series) · UNECE Regulation No. 63 (ECE R63) — Uniform provisions concerning the approval of L1 category vehicles with regard to sound emission.
UN R63 — Supplement 4 to the 02 series of amendments
Supplement 3 → 4
- What changed
- Paragraph 1 now says that pure electric vehicles, including vehicles with auxiliary electric propulsion, are not in the scope of this Regulation.
- Annex 4 now gives a maximum sound level of 63 dB(A) for cycles designed to pedal equipped with an auxiliary propulsion, other than electrical. For these cycles, the auxiliary propulsion has the primary aim to aid pedalling, and its output is cut off at a vehicle speed ≤ 25 km/h.
- In the case of compressed air engines, Annex 3 now requires an agreement on the normal operating conditions not covered by paragraph 2.2.1. The manufacturer and the type-approval authority must agree these conditions.
- Why
- Pure electric vehicles are excluded: their low sound emissions a priori should satisfy the sound emission level limits of this Regulation.
- GRB decided to consider including provisions for sound emission of powered cycles in Regulation No. 63, in line with European Union (EU) legislation.
- The more general term “accelerator control” is introduced to cover also engines without “throttle”, for example compressed air engines.
Q1What changed14 changes
Pure electric vehicles not in the scope (paragraph 1)
Paragraph 1 now says that pure electric vehicles, including vehicles with auxiliary electric propulsion, are not in the scope of this Regulation. As before, the Regulation applies to vehicles of category L1 with regard to sound emission.
Engine conditions for compressed air engines (Annex 3, paras. 2.2.1. and 3.2.3.2.)
For compressed air engines, the normal operating conditions not covered by paragraph 2.2.1. must be agreed between the manufacturer and the type-approval authority. These conditions must be annexed to the manufacturer's application for type-approval. In paragraph 3.2.3.2., before the measurements are started, an internal combustion engine must be brought to its normal operating temperature. A compressed air engine must be brought to its normal operating condition. Before this supplement, the paragraph said that the engine must be brought to its normal operating temperature. In paragraph 2.2.1., the items of the list of normal operating conditions are now (a) to (d) instead of bullets.
“Accelerator control” instead of “throttle” (Annex 3, paras. 3.1.2.1., 3.2.3.3.2.2., 4.2. and 5.1.4.2.6.)
In paragraphs 3.1.2.1. and 3.2.3.3.2.2. of Annex 3, the text now says “accelerator control” where it said “throttle” or “throttle control”. In item (b) of paragraph 4.2., the “full throttle acceleration test” is now the “acceleration test with the accelerator control fully engaged”. Paragraph 5.1.4.2.6. now refers to the power with the accelerator control fully engaged. As before, this power is measured at 75 per cent of the rated engine speed. The power indicated by the dynamometer must be 50 per cent of this power. Before this supplement, the paragraph referred to the full throttle power.
Sound level limit for cycles designed to pedal (Annex 4)
The table of Annex 4 now has a row for cycles designed to pedal equipped with an auxiliary propulsion, other than electrical. For these cycles, the auxiliary propulsion has the primary aim to aid pedalling, and its output is cut off at a vehicle speed ≤ 25 km/h. For these cycles, the maximum sound level value is 63 dB(A).
Full stops in references (Annex 3, para. 4.2.)
In paragraph 4.2. of Annex 3, the references to paragraphs 3.1. and 3.1.4. now end with a full stop.
Q2Why it changed
- Proposed by
- Expert from the European Commission
- Working party
- GRB, 67th session (January 2018)
Reasons
Pure electric vehicles are excluded because of their low level of sound emissions. These emissions a priori should satisfy the sound emission level limits set out in this Regulation.
Source
“Pure electric vehicles are excluded, due to the low level of sound emissions, which a priori should satisfy the sound emission level limits set out in this Regulation.”
At its sixty-sixth session, GRB decided to consider including provisions for sound emission of powered cycles in Regulation No. 63.
Sources (2)
“in accordance with a decision of the Working Party on Noise (GRB) at its sixty-sixth session (ECE/TRANS/WP.29/GRB/64, para. 14) to consider including provisions for sound emission of powered cycles in Regulation No. 63”
“in line with the provisions on sound emissions of such vehicles in the European Union (EU) legislation”
The sound level measurement conditions for the powered cycles with compressed air engine are included.
Source
“The sound level measurement conditions for the powered cycles with compressed air engine are included.”
A more general term, “accelerator control”, is introduced to cover also engines without “throttle”, for example compressed air engines.
Sources (2)
“A more general term of “accelerator control” is introduced to cover also engines without “throttle” (e.g. compressed air engines).”
“This paragraph is suitably amended to introduce a more general term of “accelerator control” to cover also engines without “throttle” (e.g. compressed air engines).”
The sound emission level limits for powered cycles are introduced for situations where these levels are measured in accordance with this Regulation.
Source
“The sound emission level limits for powered cycles are introduced for situations where these levels are measured in accordance with this Regulation.”
Document trail
- —ProposalGRB-66-09Informal proposal by the expert from the European Commission
- 2017-11ProposalECE/TRANS/WP.29/GRB/2018/4Proposal by the expert from the European Commission
- —Working party adoptsECE/TRANS/WP.29/GRB/65GRB session report, para. 14
- 2018-04Sent to WP.29ECE/TRANS/WP.29/2018/62Text that GRB sent to WP.29 and AC.1
- 2018-06WP.29 adoptsECE/TRANS/WP.29/1139Adopted at the 175th session (session report, para. 118)
- 2018-12-29In forceC.N.618.2018.TREATIES-XI.B.16.63UN depositary notification
Q3Who is affected
Vehicle manufacturer
- Note that pure electric vehicles, including vehicles with auxiliary electric propulsion, are not in the scope of this Regulation.
- In the case of compressed air engines, agree the other normal operating conditions with the type-approval authority.
- For compressed air engines, annex the agreed normal operating conditions to your application for type-approval.
- Make sure cycles designed to pedal, as described in the new row of Annex 4, do not exceed 63 dB(A).
Component supplier
- No direct action for this role.
Technical service / Approval authority
- For compressed air engines, be ready for normal operating conditions agreed between the manufacturer and the type-approval authority.
- Before the measurements are started, bring a compressed air engine to its normal operating condition.
- Apply the new 63 dB(A) limit of Annex 4 to cycles designed to pedal that meet its conditions.
See every change side by side
RegVault customers compare every version of UN regulations, read the consolidated text and download the PDF.
ⓘ This report gives advice only. It is not legal or type-approval advice.