Informal document GRVA-04-34

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Presentation transcript:

Informal document GRVA-04-34 4th GRVA, 24-27 September 2019 Agenda item 6(d) Truck – Trailer data transmission for UN R79 Assistance functions, ISO 11992 standard GRVA-04 September 2019

Motivation Current situation The trailer restricts the rear vision from the truck. The truck does not beneficiate of sensors installed on the trailer Proposal With a standardized interface between truck and trailer, the truck would beneficiate of the sensors of the trailer, e.g. side sensor (short range), rear vision sensors (mid or long range), depending on the application (e.g. ACSF C, blind spot detection) Note: the proposal applies to both truck/trailer combination and tractor/semi-trailer combination

Principles Principle of the proposed amendments to UN R79: Reference to ISO 11992-1 (physical layer) and to ISO 11992-3:2020 (application layer) Use of ISO 12098 15 pole connector Implementation of similar requirements and technical Annexes as in UN R13

Necessary Amendments Concept of proposed amendments to UN R79-03 Amend Chapter 2: New definitions for the interface and data communication Amend Chapter 5: New requirements specifying the interface Amend Annex 8: Add new tests for towing vehicle and trailer individually New Annex 9* „Compatibility between towing vehicles and trailers with regard to data transmission according to ISO 11992 for environmental monitoring“ New Annex10* „Test method for evaluating the functional compatibility of vehicles with electrical control cables“ * similar to UN-R13/11

Necessary Amendments Concept of proposed amendments to UN R79-03 New Annex 9 „Compatibility between towing vehicles and trailers with regard to data transmission according to ISO 11992 for environmental monitoring“ New Annex10 „Test method for evaluating the functional compatibility of vehicles with electrical control cables“ General requirements Messages from ISO 11992-03 for towing vehicle and Trailer, including the direction of the messages (source and destination) 1. General requirements 2. Content for the communication document 3. Towing vehicle requirements for the trailer simulation test methods Definition of the messages and error warnings to be checked possibly additional tests 4. Trailer requirements for the truck simulation

Next steps Collect comments and questions by end of November 2019 Prepare necessary amendments to R79-03, in order to present a text proposal at next GRVA-05 of February 2020.