GRRF accepted chassis side remote indication. Yet the group questioned the need for a specific standard for remote indication connector. ISO 12098 vs. ISO 11992.
Mr. Svensson reported back on the R55 informal group, where an informal document will be prepared for GRRF-81:
- Mechanical dimensioning: good progress in defining the dimensions of a coupling capable of handling several vehicles, including a rigid bar dolly. Request to OEMs about the measurements on coupling forces.
- Remote indication: new adopted proposal to have the remote indication in the FOV of the operator. The chair questioned the way to transmit the indication from a rear trailer to the preceding one. ISO12098 (lights) could be an option, some pin could be used for coupling status. Mr. Teyssier found the ISO11992 relevant for such message; the experts wondered whether the Part II contains that message. Mr. Svensson proposed to add forward transmission to the existing side indication on the trailer. The group decided to keep this item in mind for further steps.
- The chair of the R55 informal group should keep his mandate until end 2016, after which he will be forced to step down from his function as chair.
- Next meeting scheduled on 14-15 January 2016 in Paris (prior next GRRF session).
About the rigid vs. hinged drawbar dolly, the experts agreed that the calculation of the R55 “d” value remains unchanged. This was not considered critical, yet Mr. Svensson committed to elaborate on this issue.