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For you as a manufacturer

The Plus Test is a voluntary crash test for rear-facing CRS intended for manufacturers of child restraint systems. The crash test imposes higher requirements for protecting the child’s neck in severe frontal collisions. The test is conducted in accordance with UNECE R129.

En närbild av krockbanan

For you as a manufacturer

 

A Swedish crash laboratory for Child restraint systems

VTI's crash safety laboratory in Linköping is accredited for crash testing and performs testing in accordance with ECE/UNECE R129 and the Plus test for Child restraint systems (CRS).

Testing of Child restraint systems at VTI

With our crash safety laboratory, we have long and solid experience in testing Child restraint systems, and VTI was among the first in the world to start this type of testing.
Since the 1960s, VTI has been involved both in the design of test methods and in the continuous development of crash safety for children in cars. The laboratory has thus played an active role in raising the safety level of child car seats, both nationally and internationally.

Investments to meet today's demands

During the period 2021–2023, VTI made extensive investments to meet modern requirements for CRS. These investments include:

  • New braking system
  • New test benches
  • New, more advanced crash test dummies

The purpose is to ensure that the testing is of high quality and complies with current regulations and industry standards.

A key feature of UN ECE R129 is that the child's height determines which CRS to use, in interaction with the recommended maximum weight.

In this testing, several new elements have been added:

  • Side impact test
  • More advanced measurements in the crash test dummies

These changes contribute to a more comprehensive assessment of the child's safety in the car.

The Plus Test is known as one of the toughest voluntary tests available for CRS. VTI's ambition is to continue to live up to this high level of safety.

In connection with the introduction of UN ECE R129, it was therefore natural to update the Plus test. The focus of the Plus Test is on:

  • protection of the child's neck
  • Robustness of the CRS

All with the goal of contributing to increased safety for children in cars.

What is E-approval?

The e-approval is a European approval where testing and certification are governed by:

  • UN ECE Regulation 129

UN ECE stands for United Nations Economic Commission for Europe.

In Sweden, it is the Swedish Transport Agency that issues the E-approval after completion of testing at VTI. The approval is valid in all countries that have accepted the regulations and is mandatory for all CRS.

The Plus Test is a voluntary supplementary test to the E-approval. It is conducted by Child restraint manufacturers who want to demonstrate additional safety qualities in addition to the requirements of UN ECE Regulation 44 or 129.

In the case of the Plus Test:

  • the speed is increased to 56 km/h
  • the stopping distance is reduced by about 100 mm
  • measures the forces to which the child's neck is exposed in a frontal collision

A plus-tested CRS provides an extra margin of safety and reduces the risk of life-threatening high neck forces in a frontal collision.

The Plus Test's test method has been developed in collaboration between: VTI, NTF, Folksam, SIS (Swedish Standards Institute), Volvo and representatives of CRS manufacturers.

VTI's crash safety laboratory also offers prototype testing of CRS. The test can include several steps, including:

  • Dynamic testing
  • Component testing
  • Strength testing

This gives manufacturers the opportunity to test and develop their products before series production or formal certification.

The Plus Test's marking

The plus test sticker or marking shows the length or weight for which the car seat has been tested.

A CRS that has passed the plus test shows the consumer that it is extra safe and reduces the risk of the child's neck being exposed to life-threatening high force in a frontal collision.

This page has been automatically translated using a machine translation tool. If you notice any incorrect wording or phrasing, please contact VTI’s Communications Unit.

Book a test of your CRS product

Book a test according to the latest regulations for Child restraint systems, UN ECE R129. The Plus Test, which VTI is the only one to offer, has been upgraded and adds an extra stamp of quality to your product.

For the time being, only rear-facing Child restraint systems will be Plus tested and approved. This is done with the aim of rewarding the car seats that provide the best protection for the smaller children.

Send your booking request to: vti@vti.se

A request for Plustest should include:

  • A company certificate of possession of a UN ECE approval of the CRS.
  • The approval documentation, including the approval number, for the UN ECE tested child restraint.
  • Drawings and technical descriptions that allow the CRS to be identified and a correct installation made.

For those of you who already have one or more products approved according to the Plus Test, it is high time to look over your COP (Conformity Of Production).

Behind the Plus Test is

The Plus Test is carried out by VTI and has been developed within the Swedish standardisation work for child safety in cars and in collaboration between VTI, NTF, Folksam, SIS (Swedish Standards Institute), Volvo and representatives of CRS manufacturers.

VTI conducts accredited tests impartially and confidentially of customer-related information in accordance with SS-EN ISO/IEC 17025:2018 and within the framework of legal and regulatory requirements. VTI's accreditation on SWEDAC's website

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