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ISO 13044-2:2021

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Road vehicles — Fully automatic coupling systems 24 V (FACS) for heavy commercial vehicle combinations — Part 2: Electrical and pneumatic interface for 50 mm fifth wheel couplings

This document specifies the mechanical, electrical/electronic and pneumatic characteristics of a fully automated fifth wheel coupling system to ensure interchangeability between a towing vehicle and a coupled semi-trailer(s) with 24 V nominal supply voltage. The two vehicles together constitute an articulated vehicle or are part of a vehicle combination.

This document also supports the step-by-step introduction of fully automated fifth wheel coupling systems in the market. It specifies features necessary for mixed mode operation, i.e. the combination of a fully automated coupling system (FACS) equipped towing vehicle with a conventional semi-trailer, and vice versa, the combination of a conventional towing vehicle with a FACS-equipped semi-trailer.

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Related Information

Similar Standards

  • AS/NZS 4968.1:2023

    Heavy road vehicles – Mechanical coupling between articulated vehicle combinations, Part 1: Design criteria and selection requirements for fifth wheel, kingpin and associated equipment

  • AS/NZS 4968.2:2023

    Heavy road vehicles – Mechanical coupling between articulated vehicle combinations, Part 2: Testing and installation of fifth wheel and associated equipment

  • AS/NZS 4968.3:2023

    Heavy road vehicles – Mechanical coupling between articulated vehicle combinations, Part 3: Kingpins and associated equipment

  • BS 7961:2004

    Specification for a device for measuring the static vertical mass (noseweight)at the coupling point of the towed vehicle.

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ISO 13044-2:2021

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