Updated draft text proposal prepared by JASIC.

Response to India comments on original proposal from Japan

JASIC raises concern that the WLTP driving cycle proposed for application to brake emissions testing does not, contrary to previous understanding, incorporate date on driving patterns in Japan and Korea (along with EU and US driving behaviors).

Presentation on Japanese pole side impact testing proposal for very light vehicles (kei-cars).

Presentation on Japanese investigations and crash testing concerning very light vehicles (kei-cars) performance in pole side impacts.

Review of Japan’s work on the development of specifications for an audible warning signal for quiet vehicles.

In vehicles with automatic transmissions, upshifts during testing cause SEM expected values to be exceeded. The proposal addresses three cases: vehicles with non-locked gear ratios, vehicles with locked gear ratios, and vehicles with only one gear ratio. For Case 1, such data does not meet conditions in R51-03 Annex 9 “4.5.2. Non-locked transmissions” and require no SEM correction. For Case 2, the proposal adds text to Annex 9 (7), Appendix 1, paragraphs 3.4. and 3.5., permitting substitution of maximum engine speed nMAX(AA-BB)TEST for nBBTEST when the maximum engine speed between AA’ and BB’ exceeds the engine speed at BB’.

Current RD-ASEP derives the regulatory level based on the certified value without accounting for margin against regulatory values of the certified value. RD-ASEP additionally regulates partial acceleration, unlike current ASEP which only stipulates full-throttle acceleration. It is proposed that RD-ASEP should take into account a margin against the regulatory values of the certification values, similar to current ASEP, to prevent quiet vehicles such as BEVs from being unfairly deemed NG.

Control range of CVT and limit value at high PMR & high rpm

MS Word download: Comments of Japan (represented by JASIC) on the working draft of the REESS amendments to UN Regulation 100.

MS Word download: JASIC comments on the draft text for Annex 4B (Isolation Resistance Measurement Method) of the REESS amendments to UN Regulation 100.

Japanese presentation proposing to focus work on the definition of the scope or range of rechargeable energy storage systems to be addressed in the proposed amendments to UN R100 given that several types of REESS exist.

Presentation discussing pros and cons of requiring (or not) a minimum sound level for quiet vehicles when stationary.