Standardization · SIS/TK 234

Sammankoppling av fordon, utvändiga anordningar samt husvagn, husbil och mobilt boende

Att koppla på ett släp på ett lätt eller tungt vägfordon är vanligt i dagens samhälle när transport av tungt och/eller skrymmande gods skall utföras. Det är även vanligt att man använder dragkroken på lätta fordon som ett fäste för diverse utrustning som t.ex. cykelhållare. Man förstår då att standarder kring drag, släp och dragkrok är viktigt ur säkerhetssynpunkt. SIS/TK 234, arbetar på europeisk och internationell nivå med att ta fram standarder för sammankoppling av fordon och utvändiga anordningar samt husvagn, husbil och mobilt boende. Syftet är att bidra till både ökad prestanda och trafiksäkerhet.

Sedan många år har det arbetats med standarder inom områdena dragkopplingar på tunga och lätta fordon samt standarder för modulfordon där flera släp kopplas på efter varandra. Dessa standarder tas fram med syfte att uppnå ökad säkerhet för människor och fordon. Som ett resultat av detta arbete finns idag ett flertal standarder inom området, t.ex. för hållfasthetsprovning av drag, utbytbarhet, stabilitetsanordningar. Den tekniska utvecklingen kräver också nya standarder, för t.ex. automatiska kopplingsanordningar för tunga fordon där el, data, hydraulic och mekanik kan kopplas ihop utan manuella ingrepp.

More information about the committèes work:

Now working on 16 standards
FprEN 16662-2, Road vehicles - Supplementary grip devices for tyres of passenger cars and light duty vehicles - Part 2: Specific test procedures (50.60)
FprCEN/TS 18363, Road vehicles - Rechargeable batteries with internal energy storage - Digital battery passport data for EV battery (50.60)
FprCEN/TS 18391, Road vehicles — Electrically propelled vehicles — Swappable battery system applied to L-category vehicles (50.20)
prEN ISO 15118-4, Road vehicles - Vehicle to grid communication interface - Part 4: Network and application protocol conformance test (ISO/DIS 15118-4:2024) (45.99)
prEN ISO 15118-2, Road vehicles - Vehicle-to-Grid Communication Interface - Part 2: Network and application protocol requirements (ISO/DIS 15118-2:2025) (40.60)
prEN 17186, Identification of vehicles and infrastructures compatibility — Graphical expression for consumer information on EV power supply (40.10)
prEN ISO 15118-21 rev, Road vehicles — Vehicle to grid communication interface — Part 21: Common 2nd generation network layer and application layer requirements conformance test plan (10.99)
prEN 18450, Road vehicles – Hydraulicly actuated tipper trucks – General requirements and safety measures (10.99)
prEN 721 rev, Leisure accommodation vehicles - Safety ventilation requirements (10.99)
prEN ISO 12617 rev, Road vehicles — Liquefied natural gas (LNG) refuelling connector — 3,1 MPa connector (10.99)
prEN ISO 15118-1 rev, Road vehicles — Vehicle to grid communication interface — Part 1: General information and use-case definition (10.99)
prEN 1648-1 rev, Leisure accommodation vehicles – Nominal 12 V/24 V/48 V direct current extra low voltage electrical installations - Part 1: Caravans (10.99)
prEN 1648-2 rev, Leisure accommodation vehicles — Nominal 12 V/ 24 V/ 48 V direct current extra low voltage electrical installations — Part 2: Motor caravans (10.99)
EN ISO 15118-5:2019/prA1, Road vehicles — Vehicle to grid communication interface — Part 5: Physical layer and data link layer conformance test — Amendment 1 (10.99)
ISO/NP 26784, Types, terms and definitions for special-purpose vehicles (10.60)
prEN 13878 rev, Leisure accommodation vehicles - Terms and definitions (00.60)
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Published 62 standards
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SS-EN 16662-3:2026
Road vehicles - Supplementary grip devices for tyres of passenger cars and light duty vehicles - Part 3: Production control (self monitoring) and third-party surveillance
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SS-EN 1647:2026
Leisure accommodation vehicles — Caravan holiday homes — Habitation requirements relating to health and safety
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SS-ISO 11154:2023/AMD 1:2026
Road vehicles — Roof load carriers — Amendment 1 (ISO 11154:2023/Amd 1:2025, IDT)
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SS-ISO 3842:2006/AMD 1:2026
Road vehicles — Fifth wheels — Interchangeability — Amendment 1 (ISO 3842:2006/Amd 1:2025, IDT)
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SS-EN 1646-1:2025
Leisure accommodation vehicles — Motor caravans — Part 1: Habitation requirements relating to health and safety
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SS-EN 1645-1:2025
Leisure accommodation vehicles — Caravans — Part 1: Habitation requirements relating to health and safety
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SIS-ISO/TS 17430:2025
Patient compartment of negative pressure ambulance — Technical specifications (ISO/TS 17430:2025, IDT)
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SS-ISO 1726-3:2023
Road vehicles — Mechanical couplings between tractors and semi-trailers — Part 3: Requirements for semi-trailer contact area to fifth wheel (ISO 1726-3:2023, IDT)
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SS-ISO 11154:2023
Road vehicles — Roof load carriers (ISO 11154:2023, IDT)
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SS-ISO 13044-2:2021
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 (ISO 13044-2:2021, IDT)
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SS-EN 16662-1:2020
Road vehicles - Supplementary grip devices for tyres of passenger cars and light duty vehicles - Part 1: General safety and performance requirements
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SS-ISO 18868:2013/Amd 1:2020
Clarification for calculation for V-value for combinations including a centre axel trailer (CAT) (ISO 18868:2013/Amd 1:2020, IDT)
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SS-ISO 3584:2020
Road vehicles - Clevis couplings - Interchangeability (ISO 3584:2020, IDT)
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SS-EN 721:2019
Leisure accommodation vehicles - Safety ventilation requirements
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SS-EN 13878:2019
Leisure accommodation vehicles - Terms and definitions
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SS-EN 1648-2:2018
Leisure accommodation vehicles - 12 V direct current extra low voltage electrical installations - Part 2: Motor caravans
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SS-EN 1648-1:2018
Leisure accommodation vehicles - 12 V direct current extra low voltage electrical installations - Part 1: Caravans
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SS 550100-2:2017
Commercial road vehicles - Interchangeability in application - Part 2: Drawbar eye 57 mm
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SS 550000-2:2017
Commercial road vehicles - Interchangeability in installation - Part 2: Drawbar eye
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SS 550100-1:2017
Commercial road vehicles - Interchangeability in application - Part 1: Clevis coupling 57 mm
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SS 550000-1:2017
Commercial road vehicles – Interchangeability in installation – Part 1: Drawbar coupling
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SS-ISO 13052:2013
Road vehicles - Trailers up to 3,5 t - Requirements for jockey wheels and drawbar supports (ISO 13052:2013, IDT)
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SS-ISO 18868:2013
Commercial road vehicles - Coupling equipment between vehicles in multiple vehicle combinations - Strength requirements (ISO 18868:2013, IDT)
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SS-ISO 7641:2013
Road vehicles - Trailers up to 3,5 t - Calculation of the mechanical strength of steel drawbars (ISO 7641:2012, IDT)
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SS-ISO 13044-1:2012
Road vehicles - 24 V fully automatic coupling systems (FACS) for heavy commercial vehicle combinations - Part 1: General requirements and definitions (ISO 13044-1:2012, IDT)
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SS-ISO 8667:2007
Commercial vehicles and buses - Cross-tooth gearbox flanges, type T (ISO 8667:1992, IDT)
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SS-ISO 1103:2007
Road vehicles - Coupling balls for caravans and light trailers - Dimensions (ISO 1103:2007, IDT)
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SS-ISO 12357-1:2005/Cor 1:2007
Commercial road vehicles - Drawbar couplings and eyes for rigid drawbars - Strength tests - Part 1: Strength tests for general cargo centre-axle trailers (ISO 12357-1:1999/Cor 1:2007, IDT)
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SS-ISO 12357-2:2007
Commercial road vehicles - Drawbar couplings and eyes for rigid drawbars - Part 2: Strength tests for special applications (ISO 12357-2:2007, IDT)
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SS-ISO 1726-2:2007
Road vehicles - Mechanical couplings between tractors and semi-trailers - Part 2: Interchangeability between low-coupling tractors and high-volume semi-trailers (ISO 1726-2:2007, IDT)
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SS-ISO 1726-1:2005/Cor 1:2007
Road vehicles - Mechanical coupling between tractors and semi-trailers - Part 1: Interchangeability between tractors and semi-trailers for general cargo (ISO 1726-1:2000/Cor 1:2007, IDT)
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SS-ISO 3842:2007
Road vehicles - Fifth wheels - Interchangeability (ISO 3842:2006, IDT)
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SS-ISO 18207:2006
Road vehicles - Trailers up to 3,5 t - Control of welded towing brackets for coupling ball after fatigue testing (ISO 18207:2006, IDT)
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SS-ISO 1726-1:2005
Road vehicles - Mechanical coupling between tractors and semi-trailers - Interchangeability (ISO 1726-1:2000, IDT)
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SS-ISO 12357-1:2005
Commercial road vehicles - Drawbar couplings and eyes for rigid drawbars - Part 1: Strength tests for general cargo centre-axle trailers (ISO 12357-1:1999, IDT)
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SS-ISO 11407:2005
Commercial road vehicles - Mechanical coupling between towing vehicles, with coupling mounted forward and below, and centre-axle trailers - Interchangeability (ISO 11407:2004, IDT)
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SS-ISO 11406:2005
Commercial road vehicles - Mechanical coupling between towing vehicles with rear-mounted coupling and drawbar trailers - Interchangeability (ISO 11406:2001, IDT)
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SS-ISO 11055:2005
Flywheels for reciprocating internal combustion engines - Installation dimensions for clutches (ISO 11055:1996, IDT)
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SS-ISO 8716:2005
Road vehicles - Fifth wheel kingpins - Strength test (ISO 8716:2001, IDT)
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SS-ISO 8718:2005
Road vehicles - Drawbar couplings and eyes for hinged drawbars - Strength tests (ISO 8718:2001, IDT)
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SS-ISO 8755:2005
Commercial road vehicles - 40 mm drawbar eye - Interchangeability (ISO 8755:2001, IDT)
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SS-EN 722-1:2004
Leisure accommodation vehicles - Liquid fuel heating systems - Part 1: Caravans and caravan holiday homes
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SS-ISO 9457-2
Road vehicles - Metric starter motor pinions - Part 2: Pinions with 20 degrees pressure angle
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SS-ISO 8123
Road vehicles - Diametral pitch starter motor pinions
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SS-ISO 7651
Commercial vehicles and buses - Mounting dimensions for alternators of types 1, 2 and 3
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SS-ISO 7649
Clutch hosings for reciprocating internal combustion engines - Nominal dimensions and tolerances
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SS-ISO 9457-1
Road vehicles - Metric starter motor pinions - Part 1: Currently used pinions
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SS 3635
Road vehicles - Mechanical couplings for towing vehicles and trailers - Strength requirement and strength testing
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SS 997
Road vehicles - Mechanical couplings - Rear crossmember - Mounting dimensions
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SS-ISO 7803
Commercial road vehicles - Steering ball joints
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SS-ISO 7648
Flywheel housings for reciprocating internal combustion engines - Nominal dimensions and tolerances
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SS-ISO 7707
Commercial road vehicles - Connections for rear-mounted power take-offs (PTO)
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SS-ISO 7804
Commercial road vehicles - Side openings for truck power take-offs
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SS-ISO 7647
Commercial vehicles and buses - Gearbox flanges -Type S
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SS 3560
Road vehicles - Caravans and light trailers - Calculation of mechanical strength of steel drawbar
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SS-ISO 7653
Road vehicles - Commercial vehicles - Couplings between power take-offs (PTO) and ancillary driven units
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SS 3502
Road vehicles - Coupling balls for trailers with a total weight less than or equal to 3,5 tons - Dimensional characteristics
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SS 2533
Road vehicles - Cylindrical connection for coupling balls with 50 mm diameter for towed vehicles with a total weight less than or equal to 3,5 tons -Shank and fixing
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SS-ISO 5422
Road vehicles - Anchorages for towing ropes, cables or bars
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SS 3467
Road vehicles - Towing hooks for trailers with a total weight over 3,5 tons - Dimensional characteristics
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SS 2532
Road vehicles - Coupling balls with 60 mm diameter with tapered connection for towed vehicles with a total weight up to 6 tons - Dimensions and strength requirements
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SS 3011
Road vehicles - Mechanical couplings - Drawbar eye for hook coupling
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Participants 5 companies and organizations
Husvagnsbranschens Riksförbund, Uppsala
Mont Blanc Industri AB, Borås
Transportstyrelsen, Borlänge
VBG Group Truck Equipment AB, Vänersborg
Volvo Technology AB, Göteborg
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International participation 7 international committees
ISO/TC 22/SC 40, Specific aspects for passenger cars, light and heavy commercial vehicles, special vehicles, buses and trailers/caravans
ISO/TC 22/SC 40/WG 1, Mechanical couplings
ISO/TC 22/SC 40/WG 4, Exterior fittings
CEN/TC 245, Leisure accommodation vehicles
CEN/TC 245/WG 6, Technical and habitation requirements for Leisure Accommodation Vehicles
CEN/TC 301, Road vehicles
CEN/TC 301/WG 7, Supplementary grip devices
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Läs mer Vill du delta?

Många av de komponentkrav som idag finns i Direktiv och Reglementen har också sitt ursprung i ISO-standarder.

Viktigt just nu är:

– Mekaniska kopplingar mellan dragbil (tractor) och semitrailers.

– FACS; Fully Automatic Coupling Systems

– Mekaniska kopplingar för modulkombinationer och fordonskombinationer med mer än ett släpfordon.

– Montering av elektriska och pneumatiska kontakter på fordon.

– Hållfasthetskrav för kopplingsutrustning bl.a. kopplingstappar för semitrailers, dragstänger för lätta släpvagnar och utrustning för speciella applikationer.

Avgränsningar:

Arbetet drivs i huvudsak som ett SIS-projekt med ISO som internationell standardiseringsorganisation.

Påverka nationellt och internationellt

Arbetet syftar till att ge tillverkare, underleverantörer, testorgan och myndigheter, riktlinjer i form av harmoniserade standarder.

Arbetet inom vår kommitté ger svenska företag, organisationer och myndigheter möjlighet att på olika sätt stödja svenska experters deltagande i det internationella arbetet för att påverka innehållet i de förslag som tas fram, och för att verka för att standarderna blir rimliga för svenskt vidkommande

Ett värdefullt arbete

I kommittén samlas expertkunskap genom representanter från tillverkare, leverantörer, myndigheter och testorgan. Standardiseringsarbetet ger deltagarna djupare insikt om standardernas krav och hur man resonerar kring dessa, vilket underlättar vid diskussion med olika parter inom branschen. Deltagarna är samtidigt med och påverkar framtidens standarder, vilket också leder till nya insikter och tidig information som kan omsättas i den egna verksamhetsutvecklingen.

Vill du vara med i kommittén?

Du är välkommen att delta i arbetet inom Sammankoppling av dragfordon och släp, SIS/TK 234. Kontakta oss så berättar vi mer om arbetet. Läs mer om kommittéarbete inom SIS här.

Subjects

Road vehicles engineering (43) Road vehicle systems (43.040)

För dig som är kommittédeltagare

Klicka här för att ta dig till kommitténs digitala arbetsyta och röstningsportal.

Verksamhetsplan 2026

I verksamhetsplanen kan du läsa mer om omfattningen av kommitténs arbete, årets mål och aktiviteter

Verksamhetsplan 2026

Contact

If you have questions or want to know more about the SIS standardization activities? Please contact us.

Anas Mohsen
Project manager
anas.mohsen@sis.se

Edgar Cardona
Project coordinator
edgar.cardona@sis.se