UN R90 — Supplement 13 to the 02 series of amendments

For vehicles of Categories X and Y, all tests in these annexes must be done, and all their requirements must be met. Without manual driving controls, braking tests must use dedicated activation methods, such as a test mode allowing manual control or triggering of braking functions. Any other method needs the agreement of the vehicle manufacturer and the technical service, and the evaluation must accurately reflect real-world ADS braking performance. Where an annex details brake inputs such as pedal effort, control force or line pressure, this means a braking demand through the selected method. The manufacturer must show that the test activation method accurately replicates ADS braking performance. A detailed description of the method must be in the test report, and the test report must record the braking demand with each test result.

For vehicles of Categories X and Y, initial speeds for brake applications in these annexes must not exceed 90 per cent of vmax. For these vehicles, the manufacturer and the technical service may agree, before testing, on additional initial speeds that reflect real-world ADS operation.

For ADS vehicles outside Categories X and Y, the tests in these annexes must be done at least in the manual driving mode. Tests in ADS mode are not necessary if the manufacturer can show the technical service the same braking performance with braking demands from the ADS. If the technical service requests it, testing to check this must be done.

The performance check now says “4 MPa” instead of “4 Mpa”. A new sentence requires that the measured line pressure reflects the actual force applied by the brake actuator(s). Any compensation or other demand modification made by the braking system must not affect the measured line pressure. The test speeds, the initial temperature and the deceleration tolerances do not change.

Paragraph 1.1.1. gets new footnote 7 after “category M, N, L and O”. Footnote 7 reads “As defined in the Consolidated Resolution on the Construction of Vehicles (R.E.3.), document ECE/TRANS/WP.29/78/Rev.8, https://unece.org/transport/vehicle-regulations/wp29/resolutions”. Footnote 4 on the numbers of the Contracting Parties now refers to document ECE/TRANS/WP.29/78/Rev.8. Before, it referred to document ECE/TRANS/WP.29/78/Rev.2/Amend.1.

Paragraph 1.1.1. now refers to “UN Regulations Nos. 13, 13-H or 78” instead of “Regulations Nos. 13, 13-H or 78”. Annex 3, paragraph 1. now says “UN Regulation No. 13 or 13-H” instead of “Regulation No. 13 or 13-H”. In Annex 14, the sentence on the tests required in paragraph 5.3. now ends with a colon instead of a full stop.