The current international tyre regulations cause road accidents

  • The current Brussels EU Regulation No. 1235/2011, valid from May 30, 2012, has introduced an European Tyre Label with wet grip index G classes from A to G for passenger car tyres C1, light commercial vehicles tyres C2 and heavy truck- and bus tyres C3. Every wet grip class for each vehicle category has a defined band of numerical values for the wet grip index G. The legislated wet grip values G in this EU- Regulation are very low. The measured braking distances and corresponding impact speeds of the test vehicles are showing very critical results. Regulation No. 1235/2011 of the European Parliament and the Council for Type Approval of Vehicles (EU) should be changed in such a way, that for C1-tyres (normal passenger cars tyres) the minimum wet grip index G is 1.25. All C2-tyres (light commercial vehicles tyres) should at least meet a minimum wet grip index of G = 1.1. All C3-tyres (heavy trucks and buses tyres) should at least meet a minimum wet grip index of G = 0.95. Due to the missing lower limits for G in the wet grip class F for C1, C2 and C3 tyres according to Commission Regulation (EU) No. 1235/2011, officially valid from 30 May 2012, a tyre-to-road coefficient of adhesion in the extreme of 0 (zero) is legally permitted. This is an apparent flaw in above cited EU Regulation, which causes a potential danger to the road traffic safety for all motor vehicles in Europe with such tyres. The wet grip class F has to be removed urgently from said EURegulation, since a direct liability of the responsible EU-Commission can not be excluded.

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Metadaten
Author:Jörg Ahlgrimm, Heinz Burg, Gustav Kasanicky, Sigmar Micke, Stephan Schal, Hermann Steffan, Egon-Christian von Glasner
URN:urn:nbn:de:hbz:opus-bast-13685
Document Type:Conference Proceeding
Language:English
Date of Publication (online):2015/08/05
Contributing corporation:Europäische Vereinigung für Unfallforschung und Unfallanalyse
Release Date:2015/08/05
Tag:Baumusterzulassung; Bremsweg; Deutschland; EU-Richtlinie; Konferenz; Kontakt Reifen Straße; Nasse Straße; Reifen; Reifenprofil; Versuch
Braking distance; Conference; Contact (tyre; EU directive; Germany; Official approval; Test; Tyre; Tyre tread; Wet road; road)
Source:6th International Conference on ESAR 2014
Institutes:Sonstige / Sonstige
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
collections:BASt-Beiträge / ITRD Sachgebiete / 91 Fahrzeugkonstruktion
BASt-Beiträge / Tagungen / International Conference on ESAR / 6th International Conference on ESAR

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