UN R13 change reports — Heavy vehicle braking
UN Regulation No. 13 (ECE R13) — Uniform provisions concerning the approval of vehicles of categories M, N and O with regard to braking.
15 series
- 15 series — Supplement 3
Vehicles of categories M2, M3 and N without manual braking controls for normal operation are no longer outside the scope (para. 1.2.5. deleted).
- 15 series — Supplement 2
New paragraph 5.2.2.26. sets requirements for the dynamo function of e-axle trailers, such as a 22 kW retardation power limit for O3 and O4 trailers.
- 15 series — Supplement 1
For full trailers and centre-axle trailers, paragraphs 5.1.3. and 5.2.1. of Annex 10 now refer to a new diagram 5, not to diagram 2.
- 15 series — Base text
Paragraph 5.1.2.4.2. now says at which mass the endurance braking system must maintain an average speed of 30 km/h.
14 series
- 14 series — Supplement 4
This supplement adds the words “regardless of its means of activation” to paragraph 5.2.1.31. on the emergency braking signal.
- 14 series — Supplement 3
This supplement adds definitions for e-axles, e-axle trailers and the dynamo function, and special requirements for the dynamo function of e-axle trailers.
- 14 series — Supplement 2
This supplement adds a new Diagram 5 for full trailers and centre-axle trailers to Annex 10.
- 14 series — Supplement 1
This supplement changes the wording of Annex 4, paragraph 2.3.2. on the parking braking of a combination of vehicles on a 12 per cent gradient.
- 14 series — Base text
New paragraph 5.2.1.35. sets special additional requirements for power-driven vehicles equipped with an electrical transmission braking system (ETBS).
13 series
- 13 series — Supplement 7
This supplement adds the words “regardless of its means of activation” to paragraph 5.2.1.31. on the emergency braking signal.
- 13 series — Supplement 6
The parking braking system may now use a park lock device for the static parking brake requirements, with new rules in paragraphs 5.1.4.5.3. and 5.2.1.26.6.
- 13 series — Supplement 5
For full and centre-axle trailers with compressed-air braking, Annex 10 paras 5.1.3. and 5.2.1. now refer to a new diagram 5, not diagram 2.
- 13 series — Supplement 4
This supplement changes the wording of Annex 4, paragraph 2.3.2. on the parking braking of a combination of vehicles on a 12 per cent gradient.
- 13 series — Supplement 3
Annex 15, paragraph 4.5.1., now refers to Type-II tests of Annex 4, paragraph 1.6 (six per cent slope) or 1.8.2.5 (b) (seven per cent slope).
- 13 series — Supplement 2
New paragraphs 5.3. to 5.3.3. set provisions for the braking system of vehicles with an Automated Driving System (ADS), other than Automated Lane Keeping Systems.
- 13 series — Supplement 1
Paragraph 5.1.2.4.3.1. now says that the demonstration to the Technical Service includes test (a) of Annex 4, paragraph 1.8.2.5.
- 13 series — Base text
New item (d) adds a group of N3 vehicles with 4 axles to the vehicle stability function requirement of paragraph 5.2.1.32. These vehicles have two power-driven axles in the rear axle group and only non-driven axles in the other axle group(s), including off-road vehicles.
12 series
- 12 series — Supplement 9
This supplement adds the words “regardless of its means of activation” to paragraph 5.2.1.31. on the emergency braking signal.
- 12 series — Supplement 8
New paragraph 5.2.2.26. sets requirements for the dynamo function of e-axle trailers, such as a 22 kW retardation power limit for O3 and O4 trailers.
- 12 series — Supplement 7
For full and centre-axle trailers with compressed-air braking, Annex 10 paras 5.1.3. and 5.2.1. now refer to a new diagram 5, not diagram 2.
- 12 series — Supplement 6
This supplement changes the wording of Annex 4, paragraph 2.3.2. on the parking braking of a combination of vehicles on a 12 per cent gradient.
- 12 series — Supplement 5
Annex 15, paragraph 4.5.1., now refers to Type-II tests of Annex 4, paragraph 1.6 (six per cent slope) or 1.8.2.5 (b) (seven per cent slope).
- 12 series — Supplement 4
New paragraphs 5.3. to 5.3.3. set provisions for the braking system of vehicles with an Automated Driving System (ADS), other than Automated Lane Keeping Systems.
- 12 series — Supplement 3
Paragraph 5.1.2.4.3.1. now says that the demonstration to the Technical Service includes test (a) of Annex 4, paragraph 1.8.2.5.
- 12 series — Supplement 2
Under new paragraph 5.2.1.26.5., the warning of Annex 8, paragraph 2.6., may be delayed until the parking brake system has detected correct clamping. This applies when the parking braking system detects a request to fully apply the parking brake or to gradually control its action.
- 12 series — Supplement 1
For trailers, Annex 8, paragraph 2.5. now has an exception to the limit on the pressure at which the spring brakes begin to act.
- 12 series — Base text
Paragraph 5.2.1.26.4. now requires the parking brake to apply automatically, at least when the vehicle is detected to be stationary and (a) or (b) applies. Item (a) is the switch-off of the ignition/start switch which controls the electrical energy for the braking equipment, and/or key removal. Item (b) is that the driver is deemed to leave the driving seat, with an alternative for vehicles of category M.
11 series
- 11 series — Supplement 23
Annex 15, paragraph 4.5.1., now refers to Type-II tests of Annex 4, paragraph 1.6 (six per cent slope) or 1.8.2.5 (b) (seven per cent slope).
- 11 series — Supplement 22
New paragraphs 5.3. to 5.3.3. set provisions for the braking system of vehicles with an Automated Driving System (ADS), other than Automated Lane Keeping Systems.
- 11 series — Supplement 21
Paragraph 5.1.2.4.3.1. now says that the demonstration to the Technical Service includes test (a) of Annex 4, paragraph 1.8.2.5.
- 11 series — Supplement 20
Under new paragraph 5.2.1.26.5., the warning of Annex 8, paragraph 2.6., may be delayed until the parking brake system has detected correct clamping. This applies when the parking braking system detects a request to fully apply the parking brake or to gradually control its action.
- 11 series — Supplement 19
For trailers, Annex 8, paragraph 2.5. now has an exception to the limit on the pressure at which the spring brakes begin to act.
- 11 series — Supplement 18
New definitions and special requirements cover towing trailers, dollies and link-trailers (paras. 2.43. to 2.43.2. and 5.2.2.24. to 5.2.2.25.2.).
- 11 series — Supplement 17
Annex 7, para. 1.2.2.3. covers a power-driven vehicle to which the coupling of a trailer is authorized and with a pneumatic control line. After the paragraph 1.2.1. test, its control line requirement now applies at the additional (ninth) actuation of the service braking system control.
- 11 series — Supplement 16
Disconnection of the braking surfaces of the parking braking system may now also be controlled “from a remote control device, by a system incapable of being brought into action by a leak” (para. 5.2.1.10.). Before, the disconnection had to be controlled exclusively by the driver from his driving seat.