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UN R78 change reports — Braking (category L vehicles)

UN Regulation No. 78 (ECE R78) — Uniform provisions concerning the approval of vehicles of categories L1, L2, L3, L4 and L5 with regard to braking.

06 series

  • 06 series — Supplement 1

    Paragraph 9.14. is now an exception to paragraph 9.12., not to paragraph 9.10.

  • 06 series — Base text

    Paragraph 5.1.19. applies Annex 4 to the safety aspects of complex electronic vehicle control systems which provide or form part of the braking control transmission.

05 series

  • 05 series — Supplement 2

    New paragraph 2.34. defines “automatically commanded braking”.

  • 05 series — Supplement 1

    Paragraph 5.1.17.2. no longer limits the braking signal provisions under regenerative braking to vehicles powered solely by electric powertrain.

  • 05 series — Base text

    A means to disable ABS is not permitted, except by derogation for vehicles with a riding mode selector allowing an “off-road” or “all terrain” mode. The listed provisions must also be met. When disabled, ABS must be indicated by a yellow or amber tell-tale until it is fully functional or operating again.

04 series

  • 04 series — Supplement 2

    Annex 3, paragraph 1.1.3. adds a new item (b): the ASTM F2493-20 standard reference test tyre for the measurement of the PBC.

  • 04 series — Supplement 1

    New paragraph 5.1.17. gives the only conditions for generation and de-activation of the braking signal to illuminate stop lamp(s). Application of any service brake by the rider must generate it.

03 series

  • 03 series — Supplement 4

    Annex 3, paragraph 1.1.3. adds the ASTM F2493-20 standard reference test tyre as a new way to measure the PBC.