UN R13H Supplement 4 (01 series) · UNECE Regulation No. 13H (ECE R13H) — Uniform provisions concerning the approval of passenger cars with regard to braking.
UN R13H — Supplement 4 to the 01 series of amendments
Supplement 3 → 4
- What changed
- Paragraph 5.2.22.2. gives requirements for vehicles with automatically commanded braking and/or regenerative braking which produce a retarding force.
- The signal may now also be suppressed when the deceleration demand falls below 1.3 m/s² or the value which generated the signal, whichever is lower.
- Suppression of the signal at standstill stays allowed.
- Why
- The industry received different interpretations from Authorities and Technical Services on the conditions under which the signal is still to be generated.
- The amendment seeks clarification on this issue.
Q1What changed2 changes
When the signal may be suppressed (para. 5.2.22.2.)
Paragraph 5.2.22.2. gives requirements for vehicles equipped with automatically commanded braking and/or regenerative braking which produce a retarding force. Once generated, the signal must be kept as long as a deceleration demand persists. The signal may now also be suppressed when the deceleration demand falls below 1.3 m/s² or the value which generated the signal, whichever is lower. Suppression of the signal at standstill stays allowed.
Q2Why it changed
- Proposed by
- Experts from the International Organization of Motor Vehicle Manufacturers (OICA) and from the European Association of Automotive Suppliers (CLEPA)
- Working party
- GRVA, 12th session (January 2022)
Reasons
The industry received different interpretations from Authorities and Technical Services of paragraph 5.2.22.2. These concerned the conditions under which the signal is still to be generated.
Source
“The industry received different interpretation from Authorities and Technical Services on how the requirements of paragraph 5.2.22.2. are to be understood with regard to the conditions under which the signal is still to be generated.”
The amendment seeks clarification on this issue. It aims at clarifying paragraph 5.2.22.2. This paragraph deals with deceleration thresholds that generate the braking light signal in the case of regenerative braking and/or automatically commanded braking.
Sources (2)
“The proposed amendment seeks clarification on this issue.”
“aimed at clarifying paragraph 5.2.22.2. in UN Regulation No. 13-H, which dealt with deceleration thresholds generating braking light signal in the case of regenerative braking and/or automatically commanded braking.”
Document trail
- —ProposalGRVA-11-39Proposal by OICA and CLEPA
- 2021-11RevisedECE/TRANS/WP.29/GRVA/2022/10Official proposal based on GRVA-11-39
- —Amended in sessionGRVA-12-24Amendments by CLEPA and OICA to GRVA/2022/10
- —Working party adoptsECE/TRANS/WP.29/GRVA/12GRVA session report, para. 83
- 2022-04Sent to WP.29ECE/TRANS/WP.29/2022/79Text that GRVA sent to WP.29 and AC.1
- 2022-06WP.29 adoptsECE/TRANS/WP.29/1166Adopted at the 187th session (session report, para. 182)
- 2023-01-04In forceC.N.466.2022.TREATIES-XI.B.16.13HUN depositary notification
Q3Who is affected
Vehicle manufacturer
- No direct action for this role.
Component supplier
- No direct action for this role.
Technical service / Approval authority
- No direct action for this role.
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ⓘ This report gives advice only. It is not legal or type-approval advice.