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UN R129: D-E Plane Assessment Explanatory notes related to formal documents GRSP/2018/19 to 22
Document GRSP-64-06
28 November 2018

Explanatory notes related to formal documents GRSP/2018/ 19 through 22 (superseded by informal documents GRSP-64-02 to GRSP-64-05) submitted by Spain for the 63rd GRSP session.

Submitted by Spain
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Previous Documents, Discussions, and Outcomes
19. | UN Regulation No. 129 (Enhanced Child Restraint Systems)

29. The expert from Spain introduced GRSP-64-06, GRSP-64-02-Rev.1, GRSP-64-03-Rev.1, GRSP-64-04-Rev.1 and GRSP-64-05-Rev.1 which aimed at providing better provisions for the dummy’s head displacement when surpassing the reference plane DE during frontal and rear impact tests of forward facing Enhanced Child Restraint Systems (ECRS). She explained that these documents were revised proposals and have already been introduced at the May 2018 session of GRSP (ECE/TRANS/WP.29/GRSP/63, para. 33) to provide better rationales for the sled test. GRSP adopted GRSP-64-02-Rev.1, GRSP-64-03-Rev.1, GRSP-64-04-Rev.1 and GRSP-64-05-Rev.1 as reproduced in Annex V to the session report. The secretariat was requested to submit GRSP-64-02-Rev.1 as draft Supplement 9 to the original version of UN Regulation No. 129, GRSP-64-03-Rev.1 as draft Supplement 6 to the 01 series of amendments, GRSP-64-04-Rev.1 as draft Supplement 5 to the 02 series of amendments and GRSP-64-05-Rev.1 as draft Supplement 2 to the 03 series of amendments to UN Regulation No. 129 for consideration and vote at the June 2019 sessions of WP.29 and AC.1.

19. | UN Regulation No. 129 (Enhanced Child Restraint Systems)

33. The expert from Spain introduced ECE/TRANS/WP.29/GRSP/2018/19, ECE/TRANS/WP.29/GRSP/2018/20, ECE/TRANS/WP.29/GRSP/2018/21 and ECE/TRANS/WP.29/GRSP/2018/22 aimed at providing better provisions for the dummy’s head displacement when surpassing the reference plane DE during frontal and rear impact tests of forward facing Enhanced Child Restraint Systems. The expert from Germany argued that the current text of the UN Regulation prevented the contact of the head. He added that dummies have performance limits and that in this context these limitations would not affect the test results. The GRSP Chair requested the expert from Spain to provide better rationales for the sled test and to clarify if her proposals also referred to vehicle tests. GRSP agreed to resume discussion on this subject at its December 2018 session.

Related and Previous Documents
GRSP/2018/19
GRSP/2018/20
GRSP/2018/21
GRSP/2018/22
GRSP-64-02/Rev.1
GRSP-64-03/Rev.1
GRSP-64-04/Rev.1
GRSP-64-05/Rev.1
Relates to UN R129 |