AEBS informal group proposal to introduce new and enhanced requirements for the car-to-pedestrian test scenario.

Proposal from the AEBS informal group to improve and clarify the text of the Regulation.

Proposal the clarify the test method for the evaluation of performance of energy sources and energy storage devices under Annex 7. In particular, the proposal clarifies that the measurement is made on the ninth brake application.

Proposal to amend 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:

1. 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,
2. sampling rate of at least 100 Hz for dynamic testing,
3. specification of filters and cut-off frequency for determination of lateral acceleration,
4. option to measure “overriding force” torque via an internal sensor or an external device (e.g., steering robot).

Proposal to update and clarify Annex 6 on requirements for documentation, fault strategy and verification of the safety of electronic systems and complex electronic vehicle control systems related to vehicle steering. The assessment particularly addresses driver assistance and automated steering.

Proposal to introduce provisions for the approval of Remote Control Manoeuvring (RCM) systems.

Proposal to allow for the use of the maximum operable steering wheel angle of a steering system’s design in cases where the normalized angle as calculated under the regulation cannot meet the fixed values of the regulation (i.e., between 270 and 300 degrees). The intention is to enable approval of eventual systems (e.g., steer-by-wire) that may use low steering gear ratios.

Proposal to align GTR No. 3 with technical progress, addressing among others: electromagnetic compatibility/immunity of ABS-systems, ABS performance requirements for category 3-5 vehicles (three-wheelers), uniform requirements for equipment such Emergency Stop Signal and the means to disable the ABS, if equipped. This amendment aims to harmonize GTR with recent amendments made to UN Regulation No. 78 while addressing its use under self-certification compliance systems.

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 align approval numbers and markings under UN R90 with Schedule 4 of Revision 3 to the 1958 Agreement.

Discussion of lateral acceleration values for Automatically Commanded Steering Functions (ACSF) of Category B1 (e.g., SAE L2 lane-keeping) and proposal 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.

Proposal to supplement paragraph 5.6.4.6.7. with additional requirements regarding lane-change driver actions that should allow for a more intuitive user experience while limiting a significant risk of mode confusion.