Document ID: chunk:federal_register_of_legislation:F2018L01515:body:0:p37
Version: federal_register_of_legislation:F2018L01515
Segment Type: other
Provision Reference: 
Character Range: 104703–107576

Demonstration of the operation of the steering system
3.6.1. At the time of type approval the trailer manufacturer shall demonstrate to the Technical Service the functionality of the steering system by fulfilling the relevant performance requirements specified within the Regulation.
3.6.2. Failure Conditions:
3.6.2.1. Under steady state conditions:
 In the event of the trailer being coupled to a towing vehicle that does not have an electrical supply for the trailer steering system, or there is a break in the electrical supply to the trailer steering system or there is a failure in the electric control transmission of the trailer steering control system it shall be demonstrated that the trailer fulfils all relevant requirements of paragraph 6.3. of the Regulation for the intact system.
3.6.2.2. Under transient conditions
 The transient behaviour of the vehicle in the case of failure within the electric control transmission of the steering system shall be evaluated to ensure vehicle stability is maintained during the transition following the failure and shall be assessed by fulfilling the following:
(a) By applying the test procedure and requirements defined within paragraph 6.3.1. of the Regulation.[8]
(b) By applying the test procedure and requirements defined within paragraph 6.3.3. of the Regulation.1
3.6.3. If the trailer steering system utilises hydraulic transmission to operate the steering, the requirements of Annex 5 shall apply.
3.7. Marking
3.8.1. Trailers equipped with a connector for the supply of electrical energy to the trailer steering system shall be marked to include the following information:
(a) The maximum current requirement for the trailer steering system as defined in paragraph 3.1. above.
(b) The functionality of the trailer steering system including the impact on manoeuvrability when the connector is connected and disconnected.
 The marking shall be in indelible form and positioned so that it is visible when connecting to the electrical interface referenced in paragraph 3.3.2. above.

Annex 8
  Test requirements for corrective and automatically commanded steering functions
1.  General provisions
Vehicles fitted with CSF and/or ACSF systems shall fulfil the appropriate tests requirements of this annex.
2. Testing conditions
The tests shall be performed on a flat, dry asphalt or concrete surface affording good adhesion. The ambient temperature shall be between 0 °C and 45 °C.
2.1. Lane markings
The lane markings on the road used for the tests shall be in line with one of those described in Annex 3 of UN Regulation No. 130. The markings shall be in good condition and of a material conforming to the standard for visible lane markings. The lane-marking layout used for the tests shall be recorded in the test report.
The width of the lane shall be minimum 3.5 m, for the purpose of the tests of this annex.