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| Document title | UN R157: Proposal for amendments | ||||||||||
| Date | 20 Nov 2020 |
Proposal to expand the scope to include N category vehicles and to apply the minimum performance for service braking systems (5 m/s²) as required in the 11 series of amendments to UN Regulation No. 13, for vehicles of the Categories M2, M3, N2 and N3. The overall objective of the former Informal Working Group (IWG) on Automatically Commanded Steering Function (ACSF) was to develop technical requirements for Automated Lane Keeping Systems (ALKS). The initial limitation to passenger cars (M1 category vehicles) was agreed in order to deliver within the given timeline. After having successfully accomplished the work for the system in a first step, the automotive industry has now reviewed and examined the existing requirements under the premise of including all vehicle categories M and N. |
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| Source(s) | CLEPA and OICA | ||||||||||
| Status | Superseded | ||||||||||
| Rulemaking area(s) | |||||||||||
| Meeting(s) | |||||||||||
| Related documents | |||||||||||
| GRVA-07-06 | UN R157: Proposal for a Supplement (Informal GR review) | ||||||||||
| GRVA-09-19 | UN R157: Proposal to amend document GRVA/2021/3 (Formal GR review) | ||||||||||
| GRVA-10-26 | UN R157: Proposal for amendments to document GRVA/2021/03 (Formal GR review) | ||||||||||
| UNR157-05-09 | UN R157: Revised proposal for heavy-duty vehicle ALKS provisions | ||||||||||
| WP.29/2021/143/Rev.1 | UN R157: Proposal for Supplement 3 (Adopted) | ||||||||||
| Downloads: | .pdf format | .docx format | |||||||||
| Excerpts from session reports related to this document | |||||||||||
| GRVA | Session 9 | 1-5 Feb 2021 |
23. The expert from OICA introduced their proposal to extend the scope of UN Regulation No. 157 in ECE/TRANS/WP.29/GRVA/2021/3 (amended by GRVA-09-19) and invited the GRVA expert to provide views and input on the questions in GRVA-09-34. 23bis. The expert from Korea noted that the time gap values were governed by traffic rules and that UN Regulation No. 157 took the reference deceleration values from UN Regulation No. 13- H. He suggested that the corresponding values in UN Regulation No. 13 should be used for heavy vehicles. |
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