Commission Delegated Regulation (EU) 2015/68Show full title

Compatibility between tractors and towed vehicles with respect to ISO 11992 data communications U.K.

1. General U.K.

1.1. The requirements of this Appendix shall only apply to tractors and towed vehicles equipped with an electric control line. U.K.

1.2. The ISO 7638 connector provides a power supply for the braking system or anti-lock braking system of the towed vehicle. In the case of vehicles equipped with an electric control line this connector also provides a data communication interface via Pins 6 and 7 as in point 2.1 of this Annex. U.K.

1.3. This Appendix lays down requirements applicable to the tractor and towed vehicle with respect to the support of messages defined within ISO 11992-2:2003 including Amd.1:2007. U.K.

2. The parameters defined within ISO 11992-2:2003 including Amd.1:2007 that are transmitted by the electric control line shall be supported as follows: U.K.

2.1.

The following functions and associated messages are those specified within this Regulation that shall be supported by the tractor or towed vehicle as appropriate:

2.1.1.

Messages transmitted from the tractor to the towed vehicle:

Function/Parameter	ISO 11992-2:2003Reference	Reference in this Regulation
Service/secondary brake demand value	EBS11 Byte 3-4	Appendix 1 to Annex II, point 3.1.3.2.
Two electrical circuits brake demand value	EBS12 Byte 3 Bit 1-2	Annex XII, point 3.1.
Pneumatic control line	EBS12 Byte 3 Bit 5-6	Annex XII, point 3.1.

2.1.2.

Messages transmitted from the towed vehicle to the tractor:

Function/Parameter	ISO 11992-2:2003Reference	Reference in this Regulation
Vehicle electrical supply sufficient/insufficient	EBS22 Byte 2 Bit 1-2	Annex XII, point 5.2.3.
Warning signal request	EBS22 Byte 2 Bit 3-4	Annex XII, point 4.2.3., 5.2.4. and 5.2.3.
Supply line braking request	EBS22 Byte 4 Bit 3-4	Annex XII, point 4.2.2.
Stop lamps request	EBS22 Byte 4 Bit 5-6	Annex XII, point 5.2.5.1.
Vehicle pneumatic supply sufficient/insufficient	EBS23 Byte 1 Bit 7-8	Annex XII, point 5.2.4.

2.2.

When the towed vehicle transmits the following message, the tractor shall provide a warning to the driver:

Function/Parameter	ISO 11992-2:2003Reference	Driver Warning Required
Warning signal request	EBS22 Byte 2 Bit 3-4	point 2.2.1.29.2.1 of Annex I

2.3.

The following messages defined in ISO 11992-2:2003 including Amd.1:2007 shall be supported by the tractor or towed vehicle:

2.3.1.

Messages transmitted from the tractor to the towed vehicle:

No messages currently defined.

2.3.2.

Messages transmitted from the towed vehicle to the tractor:

Function/Parameter	ISO 11992-2:2003Reference
Vehicle service brake active/passive	EBS22 Byte 1, Bit 5-6
Braking via electric control line supported	EBS22 Byte 4, Bit 7-8
Geometric data index	EBS24 Byte 1
Geometric data index content	EBS24 Byte 2

2.4.

The following messages shall be supported by the tractor or towed vehicle as appropriate when the vehicle is installed with a function associated with that parameter:

2.4.1.

Messages transmitted from the tractor to the towed vehicle:

Function/Parameter	ISO 11992-2:2003Reference
Vehicle type	EBS11 Byte 2, Bit 3-4
VDC (Vehicle Dynamic Control) Active/passive	EBS11 Byte 2, Bit 5-6
Brake demand value for front or left side of vehicle	EBS11 Byte 7
Brake demand value for rear or right side of vehicle	EBS11 Byte 8
ROP (Roll Over Protection) system enabled/disabled	EBS12 Byte 1, Bit 3-4
YC (Yaw Control) system enabled/disabled	EBS12 Byte 1, Bit 5-6
Enable/disable towed vehicle ROP (Roll Over Protection) system	EBS12 Byte 2, Bit 1-2
Enable/disable towed vehicle YC (Yaw Control) system	EBS12 Byte 2, Bit 3-4
Traction help request	RGE11 Byte 1, Bit 7-8
Lift axle 1 — position request	RGE11 Byte 2, Bit 1-2
Lift axle 2 — position request	RGE11 Byte 2, Bit 3-4
Steering axle locking request	RGE11 Byte 2, Bit 5-6
Seconds	TD11 Byte 1
Minutes	TD11 Byte 2
Hours	TD11 Byte 3
Months	TD11 Byte 4
Day	TD11 Byte 5
Year	TD11 Byte 6
Local minute offset	TD11 Byte 7
Local hour offset	TD11 Byte 8

2.4.2.

Messages transmitted from the towed vehicle to the tractor:

Function/Parameter	ISO 11992-2:2003Reference
Support of side or axle wise brake force distribution	EBS21 Byte 2, Bit 3-4
Wheel based vehicle speed	EBS21 Byte 3-4
Lateral acceleration	EBS21 Byte 8
Vehicle ABS active/passive	EBS22 Byte 1, Bit 1-2
Amber warning signal request	EBS22 Byte 2, Bit 5-6
Vehicle type	EBS22 Byte 3, Bit 5-6
Loading ramp approach assistance	EBS22 Byte 4, Bit 1-2
Axle load sum	EBS22 Byte 5-6
Tyre pressure sufficient/insufficient	EBS23 Byte 1, Bit 1-2
Brake lining sufficient/insufficient	EBS23 Byte 1, Bit 3-4
Brake temperature status	EBS23 Byte 1, Bit 5-6
Tyre/wheel identification (pressure)	EBS23 Byte 2
Tyre/wheel identification (lining)	EBS23 Byte 3
Tyre/wheel identification (temperature)	EBS23 Byte 4
Tyre pressure (actual tyre pressure)	EBS23 Byte 5
Brake lining	EBS23 Byte 6
Brake temperature	EBS23 Byte 7
Brake cylinder pressure first axle left wheel	EBS25 Byte 1
Brake cylinder pressure first axle right wheel	EBS25 Byte 2
Brake cylinder pressure second axle left wheel	EBS25 Byte 3
Brake cylinder pressure second axle right wheel	EBS25 Byte 4
Brake cylinder pressure third axle left wheel	EBS25 Byte 5
Brake cylinder pressure third axle right wheel	EBS25 Byte 6
ROP (Roll Over Protection) system enabled/disabled	EBS25 Byte 7, Bit 1-2
YC (Yaw Control) system enabled/disabled	EBS25 Byte 7, Bit 3-4
Traction help	RGE21 Byte 1, Bit 5-6
Lift axle 1 position	RGE21 Byte 2, Bit 1-2
Lift axle 2 position	RGE21 Byte 2, Bit 3-4
Steering axle locking	RGE21 Byte 2, Bit 5-6
Tyre wheel identification	RGE23 Byte 1
Tyre temperature	RGE23 Byte 2-3
Air leakage detection (Tyre)	RGE23 Byte 4-5
Tyre pressure threshold detection	RGE23 Byte 6, Bit 1-3

2.5.

The support of all other messages defined within ISO 11992-2:2003 including Amd.1:2007 is optional for the tractor and towed vehicle.