This agenda item relates to UN R79 Steering Equipment.
Working Party on Brakes and Running Gear | Session 84 | 19-22 Sep 2017

50. The expert from Germany on behalf of the Co-Chair of the IWG on Automatically Commanded Steering Function (ACSF) presented GRRF-84-02 with draft provisions for ACSF of Category [C1]. GRRF discussed values in square brackets in the document related to the scenario considered for the purpose of testing the performance of ACSF of C1 category. In particular, the definition of the point at which, following the beginning of the Lane Change Procedure, the driver’s reaction should be understood did not achieve consensus and created difficulties to agree on what is referred to as reaction time in draft para. 5.6.4.8.1. The expert from Japan presented GRRF-84-28 proposing derogations in case the maximum speed allowed in the territory of a Contracting Party would be lower than 130 km/h. GRRF agreed to defer GRRF-84-28 to the IWG on ACSF. GRRF considered the note from the secretariat (GRRF-84-24) reproducing comments received from Tesla Inc. GRRF also discussed GRRF-84-23 tabled by the experts from OICA and CLEPA on Emergency Steering Functions. GRRF requested the secretariat to consolidate the proposals as reflecting the current position and guidance of GRRF (GRRF-84-36) and to add this consolidation to the provisional agenda of the next session of GRRF (ECE/TRANS/WP.29/GRRF/2017/26). GRRF also requested the IWG on ACSF to review this document until the next GRRF session.

54. The expert from UK introduced GRRF-84-14 proposing amendments to the requirements in Annex 6 (Complex Electric control systems). GRRF reviewed in detail the proposal and requested the secretariat to include the amended proposal in the consolidated document GRRF-84-36 and ECE/TRANS/WP.19/GRRF/2017/27.

World Forum for the Harmonization of Vehicle Regulations | Session 174 | 12-16 Mar 2018

57. The GRRF chair mentioned that document ECE/TRANS/WP29/2018/35 would still contain square brackets. WP.29 agreed to remove the square brackets and to agree on transitional provision dates (as reflected in para. 92).

92. In ECE/TRANS/WP.29/2018/35, paragraphs 2.1.4., amend to read:

12.2.2.As from 1 September 2019, Contracting Parties applying this UN Regulation shall not be obliged to accept UN type approvals to the preceding series (02) of amendments, first issued after 1 September 2019.
12.2.3.Until 1 September 2021, Contracting Parties applying this UN Regulation shall continue to accept UN type approvals to the preceding series (02) of amendments to the UN Regulation, first issued before 1 September 2019.
12.2.4.As from 1 September 2021, Contracting Parties applying this UN Regulation shall not be obliged to accept type approval issued to the preceding series of amendments to this UN Regulation.

93. WP.29 noted the concern raised by the representative of OICA on the selection of an early date of application for the transitional provisions in paragraphs 12.2.3. and 12.2.4., which could create serious development difficulties, due to the introduction of new requirements compared to the very recently adopted 02 series of amendments, while vehicles are currently under development for the latter.

Working Party on Brakes and Running Gear | Session 85 | 11 Dec 2017

5. The Chair of GRRF recalled the purpose of ECE/TRANS/WP.29/GRRF/2017/27 proposing amendments to UN Regulation No. 79 with provisions for Automatically Commanded Steering Function (ACSF) of Category C, Emergency Steering Function (ESF) and clarifications to Annex 6. He mentioned that the Informal Working Group (IWG) on ACSF held two meetings and a webex conference since the September 2017 session of GRRF to review this document.

6. The expert from Germany presented (GRRF-85-06 and GRRF-85-07) the outcome of the IWG on the draft provisions applicable for ACSF of Category C (GRRF-85-02). He explained that the IWG resolved the remaining issue on the definition of the point at which, following the beginning of the Lane Change Procedure, the driver’s reaction should be understood. He added that, for this purpose, continuous lateral movement and lane centering provisions were added. He continued his presentation by reporting on the deliberation of the IWG on the definition of the target vehicle used for the sensor performance test proposed in Annex 8, para. 3.5.5. He added that the worst case scenario would be a sensor performance test with a motorcycle of category L3 target coming from the rear of the subject vehicle. He noted that no standard defining a test target L3 vehicle would exist to date and that therefore the IWG agreed on the compromise defined in Annex 8, para. 3.5.5.1. He noted that the definition of the target vehicle should be reviewed at a later stage as some experts had expressed their doubts that a L3 vehicle without fairing and windshield would indeed be the worst case scenario for this sensor performance test. He concluded his presentation with the description of the type approval tests requirements to be included in Annex 8. GRRF agreed that using a motorcycle without fairing and windshield would be appropriate until such times that a uniform target would be agreed.

7. GRRF reviewed in detail GRRF-85-02 and agreed on a number of amendments as reproduced in GRRF-85-02-Rev.1.

8. The expert from the United Kingdom of Great Britain and Northern Ireland introduced GRRF-85-01-Rev.1 proposing amendments to Annex 6. The expert from Japan introduced GRRF-85-05 with amendments to GRRF-85-01-Rev.1.

9. GRRF reviewed both documents in detail and agreed on a number of amendments as reproduced in GRRF-85-01-Rev.2.

10. The expert from OICA presented (GRRF-85-08) a proposal for provisions applicable to ESF (GRRF-85-03).

11. GRRF reviewed the latter document in detail and agreed to insert the definition of ESF contained in GRRF-85-02.

12. GRRF adopted ECE/TRANS/WP.29/GRRF/2017/27 with the amendments endorsed during this session concerning ACSF of Category C, ESF and Annex 6, as reproduced in Annex II to the session report and requested the secretariat to submit it as draft 03 series of amendments to UN Regulation No. 79 to World Forum for the Harmonization of Vehicle Regulations (WP.29) and Administrative Committee of the 1958 Agreement (AC.1) for consideration and vote at their March 2018 sessions.

Documentation
GRRF-85-01/Rev.1 | Regulation 79: Proposals for changes to Annex 6 (UK)
GRRF-85-01/Rev.2 | UN R79: Adopted proposal for amendments to Annex 6 (revised GRRF-85-01)
GRRF-85-02 | Proposal for amendments to Regulation No. 79
GRRF-85-02/Rev.1 | UN R79: Adopted proposal for amendments (revised GRRF-85-02)
GRRF-85-03 | UN R79: Proposals for amendments to include ESF
GRRF-85-04 | UN R79: Proposal for transitional provisions to the new 03 series of amendments (CLEPA and OICA)
GRRF-85-04/Rev.1 | UN R79: Adopted transitional provisions for the 03 series of amendments
GRRF-85-05 | UN R79: Proposal concerning amendments to Annex 6 (Japan)
GRRF-85-06 | UN R79: Presentation supporting the proposal for amendments (GRRF-85-02) (Germany)
GRRF-85-07 | UN R79: Video embedded in presentation (GRRF-85-6) (Germany)
GRRF-85-08 | UN R79: Presentation in support of the proposal to introduce ESF provisions (OICA)
GRRF/2017/27 | Proposal for amendments to Regulation No. 79