UN R79 Supplement 1 (03 series) · UNECE Regulation No. 79 (ECE R79) — Uniform provisions concerning the approval of vehicles with regard to steering equipment.
UN R79 — Supplement 1 to the 03 series of amendments
Base text → Supplement 1
- What changed
- The optical and the acoustic or haptic warning signal for an ESF intervention must now be maintained as long as the intervention exists.
- When a flashing mode is used for the CSF warning, a lighting phase must be visible at the end of the intervention or later.
- The optical warning signal for a driver who is not holding the steering control now has the added condition "before the start of the lane change manoeuvre".
- Why
- The proposal was aimed at clarifying the text of the Regulation.
- For paragraph 5.1.6.2.6., it was proposed to mention the duration of the signals as for the other categories of ACSF, for example CSF.
- For the CSF, the flashing mode text was proposed to make sure that sufficient light is provided to the driver.
Q1What changed5 changes
CSF intervention warning in a flashing mode (para. 5.1.6.1.1.)
Paragraph 5.1.6.1.1. requires that every CSF intervention is immediately indicated to the driver by an optical warning signal. A new sentence says: when a flashing mode is used, a lighting phase must be visible at the end of the intervention or later.
Duration of the ESF intervention warning (para. 5.1.6.2.6.)
Any intervention of an ESF must be indicated to the driver with an optical and with an acoustic or haptic warning signal. This signal must be provided at the latest with the start of the ESF intervention. It must now also be maintained as long as the intervention exists.
Automatic deactivation of an ACSF of Category C on a change of road type (para. 5.6.4.2.3.)
The system must deactivate automatically when going from a road type classified as permitting an ACSF of Category C to one where it is not. The words "(off mode)" are added after "deactivated automatically".
Warning when the driver is not holding the steering control in a lane change procedure (para. 5.6.4.5.6.)
An optical warning signal must be provided if, "after a period of no longer than 3s after the initiation of the lane change procedure and before the start of the lane change manoeuvre", the driver is not holding the steering control. Before, the words "and before the start of the lane change manoeuvre" were not in this text. The warning signal must be active until the driver is holding the steering control, or until the system is deactivated, "either manually or automatically according to 5.6.4.6.8". The reference to 5.6.4.6.8. is new.
Q2Why it changed
- Proposed by
- Expert from France
- Working party
- GRVA, 2nd session (January–February 2019)
Reasons
The proposal was aimed at clarifying the text of the Regulation.
Source
“It is aimed at clarifying the text of the Regulation.”
For paragraph 5.1.6.1.1., it was proposed to clarify the visualization requirement of the optical signal for a CSF intervention when a flashing mode is used. The aim was to make sure that sufficient light is provided to the driver.
Source
“It is proposed to clarify the visualization requirement of the optical signal when a flashing mode is used to indicate to the driver the CSF intervention to make sure that sufficient light is provided to the driver.”
For paragraph 5.1.6.2.6., it was proposed to mention the duration of the signals as for the other categories of ACSF, for example CSF.
Source
“It is proposed to mention the duration of the signals as for the other categories of ACSF (e.g. CSF).”
For paragraph 5.6.4.2.3., it was proposed to add "off mode" at the end of the sentence, as a clarification.
Source
“It is proposed to add "off mode" at the end of the sentence, as a clarification.”
For paragraph 5.6.4.5.6., reference is made to paragraph 5.6.4.6.8., where the different cases of manual and automatic deactivation are defined.
Source
“Reference is made to paragraph 5.6.4.6.8. where the different cases of manually and automatically deactivation are defined.”
Document trail
- —ProposalGRVA-01-38Informal proposal by the expert from France, the basis of ECE/TRANS/WP.29/GRVA/2019/10
- 2018-11ProposalECE/TRANS/WP.29/GRVA/2019/10Proposal by the expert from France for amendments to UN Regulation No. 79
- —Amended in sessionGRVA-02-45Agreed amendments to ECE/TRANS/WP.29/GRVA/2019/10, the basis of Annex III
- —Working party adoptsECE/TRANS/WP.29/GRVA/2GRVA session report, para. 36: GRVA adopted the proposal as amended (Annex III)
- 2019-05Sent to WP.29ECE/TRANS/WP.29/2019/73Text that GRVA sent to WP.29 and AC.1
- 2019-06WP.29 adoptsECE/TRANS/WP.29/1147Adopted at the 178th session (session report, para. 134)
- 2020-01-11In forceC.N.15.2020.TREATIES-XI.B.16.79UN depositary notification
Q3Who is affected
Vehicle manufacturer
- Make sure ESF warning signals are maintained as long as the intervention exists (para. 5.1.6.2.6.).
Component supplier
- No direct action for this role.
Technical service / Approval authority
- Check that the ESF warning signal is maintained as long as the intervention exists (para. 5.1.6.2.6.).
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ⓘ This report gives advice only. It is not legal or type-approval advice.
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- 05 series — Base text
- 04 series — Supplement 12
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- 04 series — Supplement 5
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- 04 series — Base text
- 03 series — Supplement 17
- 03 series — Supplement 16
- 03 series — Supplement 15
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- 03 series — Supplement 13
- 03 series — Supplement 12
- 03 series — Supplement 11
- 03 series — Supplement 10
- 03 series — Supplement 9
- 03 series — Supplement 8
- 03 series — Supplement 7
- 03 series — Supplement 6
- 03 series — Supplement 5
- 03 series — Supplement 4
- 03 series — Supplement 3
- 03 series — Supplement 2