Presentation in support of the proposal for additional vehicle categories and sound emission level requirements under UN R51. A “Flat Front Light N1 Vehicle” is defined as:

• GVM ≤ 2.5 ton
• PMR (power to mass ratio) of GVM ≤ 35kW/t
• Engine capacity ≤ 660cc
• d value<1,100mm

Japan positions on the scope of the current phase 2 work, especially with regard to child sizes above 125 cm and the use of the Q6 versus Q10 child dummies.

Discussion presentation from Japan towards harmonizing the provisions for testing hybrid vehicles in the kokujikan and the proposed GTR to avoid divergent interpretations.

Updated presentation for the continued discussion of Japanese views on the use of the Q6 dummy in the draft provisions of the second-phase amendments to the regulation on enhanced child restraint systems.

Presentation to explain Japan’s preference for using a gauge to ensure a 60° angle over the procedure based on the bumper beam to determine the target impact area for the lower legform.

Explanation of Japanese concerns over differences in the behaviour of the Flex-PLI lower legform impactor in an angled impact compared with a human being based on THUMS analysis in relation to the bumper beam proposal for determining the impact area of the test.

JASIC view urging quick adoption of the bumper test area using a 60° threshold in line with the currently available technology (as opposed to delaying initial implementation while researching and validating further refinements).

Presentation of summary and conclusions from a literature review on the biomechanics of minor neck injuries resulting from rear-impact accidents.

Input for consideration in the development of provisions for the type approval of rear-view camera monitor systems.

Presentation on Japanese research into thermal propagation and fire risks of vehicle battery systems.

Comments concerning point light source detection factor, point light source Rayleigh criteria methods.

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