Presentation in support of the proposals for the 01 series of amendments and for Supplement 1 to UN R152 (respectively, documents GRVA/2019/16 and GRVA/2019/17.

The False Reaction scenarios in Annex 3-Appendix 2 were based on UN R131 (on-highway heavy vehicles) without verification of their applicability to urban light vehicles. Japan has begun research and anticipates proposing changes to the UN R152 scenarios in the near future. This proposal identifies scenarios under study and recommends tolerances for the vehicle and pedestrian dummy placements. Japan also raises concerns over the provision “the AEBS shall not provide a collision warning” in cases where there is no imminent collision risk.

Proposal to modify lateral acceleration values for Automatically Commanded Steering Functions (ACSF) of Category B1 (e.g., SAE L2 lane-keeping) and to allow the vehicle under test to change speeds in order to meet maximum lateral acceleration values when navigating curves.

Proposal to allow for higher lateral acceleration limits for Automatically Commanded Steering Functions (ACSF) in executing lane changes. The proposal modifies acceleration limits in the original proposal (GRVA/2019/27) and focuses on the timing for lane changes (e.g., 15-second total duration).

Proposal to add transitional provisions to document GRVA/2019/18.

Text approved by GRVA consolidating input from stakeholders and agreed changes to the original proposal (GRVA/2019/19) for submission to WP.29 at its March 2020 session. The proposal amends the draft text (GRVA/2019/9) submitted to resolve measurement concerns in the test requirements for ACSF of Category B1 and C by introducing provisions for tolerances, including:

• inclusion of the position at which the lateral acceleration was measured and the position of the centre of gravity of the vehicle for better traceablility,
• sampling rate of at least 100 Hz for dynamic testing,
• specification of filters and cut-off frequency for determination of lateral acceleration,
• option to measure “overriding force” torque via an internal sensor or an external device (e.g., steering robot).

Presentation on Tesla experience with hands-on lane-keeping and automated lane-change systems, especially with regard to lateral acceleration and distance limits under UN R79.

Proposal to introduce provisions for a “two-step Human Machine Interface” in the requirements for Automatically Commanded Steering Functions (ACSF) of Category C lane-change functions.

Proposal to correct editorial errors in the consolidated document WP29/2016/58 relating to GRRF-80-37, GRRF/2015/22 and GRRF-81-04-Rev.1 and to insert the word “tolerance” in para. 2.3.3.4.1.

Amendments submitted from GRVA.