UN R151 Supplement 3 (00 series) · UNECE Regulation No. 151 (ECE R151) — Uniform provisions concerning the approval of motor vehicles with regard to the Blind Spot Information System for the Detection of Bicycles.
UN R151 — Supplement 3 to the 00 series of amendments
Supplement 2 → 3
- What changed
- Paragraph 5.3.1.4. now says that the information signal must not be visible before the first point of information. It must be given between the first point of information and the last point of information.
- The BSIS must also give an information signal if a bicycle is “moving with a speed between 5 km/h and 20 km/h, at a lateral separation of between 0.25 m up to 0.9 m and longitudinally located between -0.6 m and +0.6 m in reference to the centre of the most forward front wheel while driving straight”.
- Why
- Supplement 1 was not intended to delete the paragraph 5.3.1.4. requirements on the information signal boundaries and on the detection area around the front wheel.
- GRSG-121-07 amended the proposal to further quantify the dimension of the detection area near the front wheel.
Q1What changed4 changes
Information signal between the first and the last point of information (para. 5.3.1.4.)
Paragraph 5.3.1.4. now says that the information signal must not be visible before the first point of information. It must be given between the first point of information and the last point of information. Before this supplement, paragraph 5.3.1.4. did not have these two sentences. The sentence that starts “However, the information signal is not required” is now a separate paragraph. Its text does not change.
Information signal for a bicycle near the front wheel
The BSIS must also give an information signal if a bicycle is “moving with a speed between 5 km/h and 20 km/h, at a lateral separation of between 0.25 m up to 0.9 m and longitudinally located between -0.6 m and +0.6 m in reference to the centre of the most forward front wheel while driving straight”. Before this supplement, paragraph 5.3.1.4. did not have this requirement.
Q2Why it changed
- Proposed by
- Experts from VRU-Proxi Informal Working Group (VRU-Proxi)
- Working party
- GRSG, 121st session (April 2021)
Reasons
Supplement 1 amended paragraph 5.3.1.4. to add an explicit requirement for the maximum detection distance. There was no intention to delete the requirements of paragraph 5.3.1.4. on the information signal boundaries and on the detection area around the front wheel.
Sources (3)
“Supplement 1 to the original version of UN Regulation No. 151 (ECE/TRANS/WP.29/GRSG/2019/25) has amended the paragraph 5.3.1.4.”
“The intention of such an amendment was to add an explicit requirement for the maximum detection distance.”
“There was no intention to delete the requirements from paragraph 5.3.1.4. on the information signal boundaries and on the detection area around the front wheel.”
The proposal was amended by GRSG-121-07 to further quantify the dimension of the detection area near the front wheel.
Source
“to further quantify the dimension of the detection area near the front wheel”
Proposer's reason (informal document GRSG-121-07)
The original intention of the third passage of paragraph 5.3.1.4. was to cover the area near the front wheel. It gave no clear dimensional requirements for the detection area in longitudinal direction. With the proposed change, the longitudinal limitations of the detection area are clearly defined. They are covering at least the area of interest considering the wheel dimensions up to the largest commonly used front wheels.
Submitted by Informal Working Group on Awareness of Vulnerable Road Users Proximity. Working party adoption: ECE/TRANS/WP.29/GRSG/100, para. 43.
Sources (2)
“The original intention of the third passage of §5.3.1.4 was to cover the area near the front wheel, however without clear dimensional requirements for the detection area in longitudinal direction.”
“With the proposed change the longitudinal limitations of the detection area are clearly defined and are covering at least the area of interest considering the wheel dimensions up to the largest commonly used front wheels.”
Document trail
- 2021-01ProposalECE/TRANS/WP.29/GRSG/2021/4Proposal by the experts from VRU-Proxi Informal Working Group
- —RevisedGRSG-121-07Proposal amending working document GRSG/2021/4
- —Working party adoptsECE/TRANS/WP.29/GRSG/100GRSG session report, para. 43
- 2021-09Sent to WP.29ECE/TRANS/WP.29/2021/102Text that GRSG sent to WP.29 and AC.1
- 2021-11WP.29 adoptsECE/TRANS/WP.29/1161Adopted at the 185th session (session report, para. 121)
- 2022-06-22In forceC.N.248.2022.TREATIES-XI.B.16.151UN depositary notification
Q3Who is affected
Vehicle manufacturer
- Make sure that the information signal is not visible before the first point of information (para. 5.3.1.4.).
- Make sure that the BSIS gives an information signal if a bicycle is “moving with a speed between 5 km/h and 20 km/h, at a lateral separation of between 0.25 m up to 0.9 m and longitudinally located between -0.6 m and +0.6 m in reference to the centre of the most forward front wheel while driving straight” (para. 5.3.1.4.).
Component supplier
- Make sure that your BSIS gives the information signal between the first and the last point of information (para. 5.3.1.4.).
Technical service / Approval authority
- Be ready to check that the information signal is not visible before the first point of information (para. 5.3.1.4.).
- Be ready to check the information signal for a bicycle “moving with a speed between 5 km/h and 20 km/h, at a lateral separation of between 0.25 m up to 0.9 m and longitudinally located between -0.6 m and +0.6 m in reference to the centre of the most forward front wheel while driving straight” (para. 5.3.1.4.).
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ⓘ This report gives advice only. It is not legal or type-approval advice.