Proposal to amend the provisions for the DPPS Generic Vehicle (GV) Models. This Addendum provides the specifications for the generic vehicle models to be used for the qualification of pedestrian models for HIT determination according to [ GTR No.9 amendment 3 Annex 2 ]. The models and their usage are specified.

45. As per paragraph 4, the experts from Austria and the Republic of Korea, on behalf of IWG, explained that validation of a reference of Human Body Models (HBM) was relevant for the evaluation of HIT (GRSP-73-03). She noted that validation consisted of simulations of HBM against a model representing a GVM frontend. She clarified that the procedure of validation of HBM was limited to pedestrian HIT. GRSP noted that two proposals of addendum to the Mutual Resolution No.1 (M.R.1) were submitted by the IWG to calculate HIT: (a) Addendum 5 on provisions for the DPPS GVM (ECE/TRANS/WP.29/GRSP/2023/7 as amended by GRSP-73-10-Rev.1); and (b) Addendum 6 on developing HBM qualification corridors (GRSP-73-11). GRSP noted that the development of the two Addenda needed further study and agreed to resume discussion at its December 2023 session.

8. GRSP considered GRSP-73-23-Rev.1 on methods to shorten the verification test time for the expected on-road performance and performance durability of Compressed Hydrogen Storage Systems. GRSP also noted GRSP-73-38, on the post-crash safety of hydrogen-fuelled heavy-duty vehicles (HDV). It was agreed to resume discussion at the December 2023 session of GRSP as topics for Phase 3 of the UN GTR.

19. The expert from the Republic of Korea introduced the status report (GRSP-73-43) of the Ad Hoc Group on Safety-Belt Reminders (SBR). He informed GRSP that the Group agreed to clarify and resolve three SBR issues introduced at the seventy-second session of GRSP (GRSP-72-13). He concluded that the Group planned to convene virtually at the end of May to seek basis for a proposal for discussion at the December 2023 session of GRSP. The expert from France introduced ECE/TRANS/WP.29/GRSP/2023/17, to clarify: (a) how to assess SBR connection in the case of removable seats and (b) test procedure of SBR. The expert from OICA reiterated that GRSP-73-24 also amends ECE/TRANS/WP.29/GRSP/2023/17. GRSP adopted ECE/TRANS/WP.29/GRSP/2023/17 as amended by annex III to the session report. GRSP requested the secretariat to submit the proposal as part of the draft 09 Series of Amendments (paragraphs 17 to 19) to UN Regulation No. 16 for consideration and vote at the November 2023 sessions of WP.29 and AC.1.

4. The expert from the Republic of Korea, Chair of the Informal Working Group on Deployable Pedestrian Protection Systems (IWG DPPS), introduced the final progress report of the group (GRSP-73-13-Rev.1). He introduced ECE/TRANS/WP.29/2023/6 and GRSP-73-12-Rev.1 as the final proposal for Amendment 3 to the UN GTR. The expert from Austria, on behalf of IWG, explained that the proposal incorporated a numerical test as a prerequisite to the certification test of vehicle bonnets. She noted that GRSP-73-59, explained the numerical simulation concerning the Head Impact Time (HIT), based on Generic Vehicle Models (GVM). GRSP continued discussion on HIT and GVM under agenda item 19 (paragraph 46).

5. GRSP agreed that the final draft of Amendment 3 needed further discussion within IWG. Thus, GRSP agreed to seek endorsement from the Executive Committee of the 1998 Agreement (AC.3) to extend the IWG mandate until May 2024. GRSP agreed to resume discussion at its December 2023 session based on a revised: (a) consolidated text of the amendments (superseding ECE/TRANS/WP.29/2023/6 and GRSP-73-12-Rev.1), (b) final report of IWG DPPS (superseding GRSP-73-13-Rev.1).

8. GRSP considered GRSP-73-23-Rev.1 on methods to shorten the verification test time for the expected on-road performance and performance durability of Compressed Hydrogen Storage Systems. GRSP also noted GRSP-73-38, on the post-crash safety of hydrogen-fuelled heavy-duty vehicles (HDV). It was agreed to resume discussion at the December 2023 session of GRSP as topics for Phase 3 of the UN GTR.

4. The expert from the Republic of Korea, Chair of the Informal Working Group on Deployable Pedestrian Protection Systems (IWG DPPS), introduced the final progress report of the group (GRSP-73-13-Rev.1). He introduced ECE/TRANS/WP.29/2023/6 and GRSP-73-12-Rev.1 as the final proposal for Amendment 3 to the UN GTR. The expert from Austria, on behalf of IWG, explained that the proposal incorporated a numerical test as a prerequisite to the certification test of vehicle bonnets. She noted that GRSP-73-59, explained the numerical simulation concerning the Head Impact Time (HIT), based on Generic Vehicle Models (GVM). GRSP continued discussion on HIT and GVM under agenda item 19 (paragraph 46).

5. GRSP agreed that the final draft of Amendment 3 needed further discussion within IWG. Thus, GRSP agreed to seek endorsement from the Executive Committee of the 1998 Agreement (AC.3) to extend the IWG mandate until May 2024. GRSP agreed to resume discussion at its December 2023 session based on a revised: (a) consolidated text of the amendments (superseding ECE/TRANS/WP.29/2023/6 and GRSP-73-12-Rev.1), (b) final report of IWG DPPS (superseding GRSP-73-13-Rev.1).

The text reproduced below was prepared by the expert from the Informal Working Group on the Deployable Pedestrian Protection Systems of UN Global Technical Regulation No. 9 to propose provisions on the development of HBM qualification corridors for Annex 2 to GTR No. 9.

45. As per paragraph 4, the experts from Austria and the Republic of Korea, on behalf of IWG, explained that validation of a reference of Human Body Models (HBM) was relevant for the evaluation of HIT (GRSP-73-03). She noted that validation consisted of simulations of HBM against a model representing a GVM frontend. She clarified that the procedure of validation of HBM was limited to pedestrian HIT. GRSP noted that two proposals of addendum to the Mutual Resolution No.1 (M.R.1) were submitted by the IWG to calculate HIT: (a) Addendum 5 on provisions for the DPPS GVM (ECE/TRANS/WP.29/GRSP/2023/7 as amended by GRSP-73-10-Rev.1); and (b) Addendum 6 on developing HBM qualification corridors (GRSP-73-11). GRSP noted that the development of the two Addenda needed further study and agreed to resume discussion at its December 2023 session.

Proposal to amend the draft text to introduce provisions for radiant warmers into the regulation.

Proposal to align UN R43 with provisions in GTR 6 concerning the exemption of possible opaque obscuration areas from Zone I of the test area on the windscreen of M₂, M₃ and N categories of vehicles. This proposal updates and supersedes document GRSG/2023/7.

Proposal to introduce performance and testing specifications for deployable pedestrian protection systems (DPPS).

45. As per paragraph 4, the experts from Austria and the Republic of Korea, on behalf of IWG, explained that validation of a reference of Human Body Models (HBM) was relevant for the evaluation of HIT (GRSP-73-03). She noted that validation consisted of simulations of HBM against a model representing a GVM frontend. She clarified that the procedure of validation of HBM was limited to pedestrian HIT. GRSP noted that two proposals of addendum to the Mutual Resolution No.1 (M.R.1) were submitted by the IWG to calculate HIT: (a) Addendum 5 on provisions for the DPPS GVM (ECE/TRANS/WP.29/GRSP/2023/7 as amended by GRSP-73-10-Rev.1); and (b) Addendum 6 on developing HBM qualification corridors (GRSP-73-11). GRSP noted that the development of the two Addenda needed further study and agreed to resume discussion at its December 2023 session.

Proposal to align UN R43 with provisions in GTR 6 concerning the exemption of possible opaque obscuration areas from Zone I of the test area on the windscreen of M₂, M₃ and N categories of vehicles.

Proposal to align UN R122 to technological progress concerning the use of radiation warmers in electric vehicles. The radiation warmer is expected to increase energy efficiency of EV and is also able to prevent the sharp reduction of All Electric Range (AER).

5. The expert from the Republic of Korea introduced the progress report (GRSP-72-11) of Informal Working Group on Deployable Pedestrian Protection Systems (IWG DPPS). He informed GRSP that the following issues had been resolved by IWG: (a) detection area definition, (b) numerical simulation for Head Impact Time (HIT) against Wrap Around Distance (WAD) information (linear regression), (c) head test area marking with un-deployed DPPS and (d) overshooting phase (dynamic testing). He added that discussion was ongoing on a new wording in the preamble and a final agreement on HIT. He introduced the text of the proposed amendment to the preamble (GRSP-72-08) and the amendment to the text of the regulation (GRP-72-09 amending ECE/TRANS/WP.29/GRSP/2022/2). Finally, he informed GRSP that the final report of IWG would be submitted to the May 2023 session of GRSP.

6. GRSP agreed to resume discussion on the draft Amendment 3 to UN GTR No. 9 on DPPS at its May 2023 session, based on a consolidated text of the amendments (preamble and text of the regulation combined) and on a final report of IWG on DPPS. GRSP requested its experts to provide feedback on GRSP-72-08 and GRSP-72-09 to the expert from the Republic of Korea before the deadline for submission of official documents (20 February 2023) of its May 2023 session.

Proposal by by the experts of the Informal Working Group (IWG) of the Deployable Pedestrian Protection Systems (IWG-DPPS)

5. The expert from the Republic of Korea introduced the progress report (GRSP-72-11) of Informal Working Group on Deployable Pedestrian Protection Systems (IWG DPPS). He informed GRSP that the following issues had been resolved by IWG: (a) detection area definition, (b) numerical simulation for Head Impact Time (HIT) against Wrap Around Distance (WAD) information (linear regression), (c) head test area marking with un-deployed DPPS and (d) overshooting phase (dynamic testing). He added that discussion was ongoing on a new wording in the preamble and a final agreement on HIT. He introduced the text of the proposed amendment to the preamble (GRSP-72-08) and the amendment to the text of the regulation (GRP-72-09 amending ECE/TRANS/WP.29/GRSP/2022/2). Finally, he informed GRSP that the final report of IWG would be submitted to the May 2023 session of GRSP.

6. GRSP agreed to resume discussion on the draft Amendment 3 to UN GTR No. 9 on DPPS at its May 2023 session, based on a consolidated text of the amendments (preamble and text of the regulation combined) and on a final report of IWG on DPPS. GRSP requested its experts to provide feedback on GRSP-72-08 and GRSP-72-09 to the expert from the Republic of Korea before the deadline for submission of official documents (20 February 2023) of its May 2023 session.

Text prepared by the experts of the Informal Working Group (IWG) of the Deployable Pedestrian Protection Systems (IWG- DPPS). proposal aims to revise ECE/TRANS/WP.29/GRSP/2022/02.

5. The expert from the Republic of Korea introduced the progress report (GRSP-72-11) of Informal Working Group on Deployable Pedestrian Protection Systems (IWG DPPS). He informed GRSP that the following issues had been resolved by IWG: (a) detection area definition, (b) numerical simulation for Head Impact Time (HIT) against Wrap Around Distance (WAD) information (linear regression), (c) head test area marking with un-deployed DPPS and (d) overshooting phase (dynamic testing). He added that discussion was ongoing on a new wording in the preamble and a final agreement on HIT. He introduced the text of the proposed amendment to the preamble (GRSP-72-08) and the amendment to the text of the regulation (GRP-72-09 amending ECE/TRANS/WP.29/GRSP/2022/2). Finally, he informed GRSP that the final report of IWG would be submitted to the May 2023 session of GRSP.

6. GRSP agreed to resume discussion on the draft Amendment 3 to UN GTR No. 9 on DPPS at its May 2023 session, based on a consolidated text of the amendments (preamble and text of the regulation combined) and on a final report of IWG on DPPS. GRSP requested its experts to provide feedback on GRSP-72-08 and GRSP-72-09 to the expert from the Republic of Korea before the deadline for submission of official documents (20 February 2023) of its May 2023 session.

Proposal to introduce a new definition for “radiant warmer”, to exclude such devices from the definition of “electric heater”, and to add a new safety requirement that such warmers must turn off immediately if there is contact with a vehicle occupant’s skin.

41. The expert from the Republic of Korea introduced a presentation (GRSG-124-05) to explain a proposal of amendment to the UN Regulation (GRSG-124-04) to allow the use of a new technology (radiation warmer) as a heating system to maximize the energy efficiency of electric vehicles. The GRSG Chair requested experts to provide comments to the proposal that could, in future, also encompass other propulsion system like hydrogen. GRSG agreed to resume discussion at its March 2023 session and requested the secretariat to distribute GRSG-124-04 with an official symbol. The expert from OICA announced a proposal (GRSG-124-36) concerning hydrogen combustion heaters that was distributed after the session.