Munchen, 10. October 2012 – The EU tire label rolls up reluctantly to us: From November, all passenger car tires offered in the EU must be marked for a uniform system, heise cars reported in the spring. With a winter tire workshop, the tire manufacturer Goodyear and Dunlop we had the opportunity to horen several professionals on this topic. So much in advance: The true Jacob is not the EU tire label.
Three instead of 50 criteria
The tire manufacturers, the Hort you also at Goodyear and Dunlop, have a split ratio to the EU tire label. On the one hand, no one doubts that it can be a good idea to inform the consumer in a simple way of informing the qualities of tires. The brand manufacturers can certainly benefit from it. But you have to really reduce the qualities of a tire to three test criteria? To summarize them: The EU tire label, designed in the styles of a refrigerator energy efficiency label, provides information about fuel efficiency (rolling resistance), adhesion to wet roads and the auxilizer rush during unrolling. The two first categories are marked by A to G, the rollingger with a three-stage speaker icon and an absolute DB specification.
An AA rating plus low running noise had to stand for an excellent tire for an excellent tire. In the case of Goodyear, Dunlop or, for example, Continental, Michelin and Pirelli, this is usually the same. Renowned manufacturers with decades of experience in Europe have a range of expertise to achieve good label values without suffering from other criteria too much. However, as Goodyear Dunlop Chief Developer Bernd Lowenhaupt explains, there are far more criteria that determine the quality of a tire – and over 50. Figure 3 shows a part of these criteria, with rapidly visible, that the EU tire label covers only a fraction of it.
Aquaplaning, na and ..
Surely it is a fine thing that the tire buyer is informed about the wet adhesion, after all, it’s about brake trails that can decide if you can avoid an accident. Between the good classes A and G are 18 meters. Handling at wet, which says something about the safety at wet and cornering, is not recorded at all. This also applies to other areas: Why are handling and brakes not rated in dryness? Why is the topic of aquaplaning ignored? And why are the winter properties really hidden? Amazing: The EU tire label makes no difference between summer and winter tires. What the winter tires in winter does not matter for his rating. There could be less experienced manufacturers on the idea of neglecting the winter properties in favor of the label requirements, ensuring that their products on the shelf make as well as the renowned providers.
How difficult it is to bring different tire properties balanced under a hat, shows a graph of Continental, Figure 6, in which the criteria wet brakes, wet handling, dry brakes, dry handling, aquaplaning, rolling resistance, mileage, aquaum and comfort is applied in a circle. Among other things, the summer tires Conti EcoContact 5 and Conti PremiumContact 5 are compared. As expected, the EcoContact offers a smaller rolling resistance than the PremiumContact, but especially in the wet brake, the picture rotates.