Tire Performance Label: A Global Trend World wide introduction of a tire label

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Donald Skinner
7 years ago
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1 EU Tire Label

Tire Performance Label: A Global Trend World wide introduction of a tire label EU US (in discussion) Japan EU-Label for the performance in Rolling Resistance, Wet Grip and coast-by Noise.

2 Tire Performance Label: A Global Trend World wide introduction of a tire label EU US (in discussion) Japan EU-Label for the performance in Rolling Resistance, Wet Grip and coast-by Noise. Beside EU a tire label will be introduced in USA and Japan Increased attention of the customers on Rolling Resistance and Wet Grip expected Increased impact of tire technology and tire performance on the markets expected 2

Criteria, Tests and Classes of EU Label Current status of discussion Fuel efficiency Passenger cars RRC RRC 6.5 6.6 RRC 7.7 7.8 RRC 9.0 9.1 RRC 10.5 10.6 RRC 12.0 RRC 12.

3 Criteria, Tests and Classes of EU Label Current status of discussion Fuel efficiency Passenger cars RRC RRC RRC RRC RRC RRC 12.0 RRC 12.1 Energy efficiency class RRC = Rolling Resistance Coefficient (coefficient between rolling force and wheel load) Influences fuel consumption Lower RRC values are better Wet grip Passenger cars WGI 155 WGI 140 WGI WGI WGI 124 WGI 109 Wet grip class WGI = Wet Grip Index (improvement in % in relation to a reference tire) Stopping performance on wet roads Higher WGI values are better Exterior noise More than 3 db below legal limit 0-3 db below legal limit Exceeding limits (not allowed after June, 2016) Absolute values for noise emission and grades in relation to legal limits Noise level of a rolling tire measured outside the car No indication for internal noise level 3

4 Ratings of Fuel Savings per Label Class l l l l l Fuel saving per label class (based on example of Ø 6.6 l fuel consumption vehicle). Saving potential between 0.10 and 0.15 l/100km per class. 4

Overview of EU Wet Grip Label Regulations EU Regulations Tire Label (wet grip class) UN ECE Regulation 1222 WGI 155 WGI 140 WGI 154 125 WGI 139 110 WGI 124 WGI 109 Introduction July 2012 for

5 Overview of EU Wet Grip Label Regulations EU Regulations Tire Label (wet grip class) UN ECE Regulation 1222 WGI 155 WGI 140 WGI WGI WGI 124 WGI 109 Introduction July 2012 for production November 2012 for sales Wet grip class Type Approval (minimum wet-level) UN ECE Regulation 117 Category of use (Class C1 tires) Introduction November 2012 for new tires November 2013 for new vehicle types November 2014 for all tires Wet Grip Index (G) Valid from November 1 st, 2012 Snow tire with a speed symbol Q or below, indicating a maximum permissible speed not greater than 160 km/h 0.9 (90 %) Snow tire with a speed symbol R or above, plus H, indicating a maximum permissible speed greater than 160 km/h 1.0 (100 %) Normal (road type) tire 1.1 (110 %) E S W R2 5

6 Ratings of Stopping Distance per Label Class + 3 to 4 m + 4 to 5 m + 5 to 6 m + More than 6 m Stopping distance differences per class* (80 0 km/h). Stopping distance is growing significantly to lower wet grade level. *Depending on car and road surface 6

7 Fuel consumption [l/100km] Collision speed [km/h] Wet Grip: the Key Safety Criteria Technical target conflict Fuel consumption vs. Wet grip Braking distance [m] Braking distance [m] 20 Reduction of the braking distance can save lives! 7

8 Wet Braking [%] EU Label Classification of Today s EU Tire Market Current status in EU tire market Rolling Resistance [c R ] * Target based on current regulation proposal 11/2010 8

9 Wet Braking [%] EU Label Classification of Today s EU Tire Market Current status in EU tire market Budget Rolling Resistance [c R ] * Target based on current regulation proposal 11/2010 9

Wet Braking [%] EU Label Classification of Today s EU Tire Market Current status in EU tire market 155 140 Quality 125

10 Wet Braking [%] EU Label Classification of Today s EU Tire Market Current status in EU tire market Quality Budget Rolling Resistance [c R ] * Target based on current regulation proposal 11/

Wet Braking [%] EU Label Classification of Today s EU Tire Market Current status in EU tire market 155 140 125 Quality

11 Wet Braking [%] EU Label Classification of Today s EU Tire Market Current status in EU tire market Quality Premium 110 Budget Rolling Resistance [c R ] * Target based on current regulation proposal 11/

12 EU Tire Label covers only 20% of Key Tire Performances Tire Tests will remain the most comprehensive consumer information Tire label covers only 20 % of the tire test criteria! 12

13 Comparison of EU Tire Label and Tire Tests A standard tire test and EU Tire Label criteria Test criteria Tire label Tire tests Dry Driving stability - + Handling - + Braking - + Wet Braking + + Aquaplaning long. - + Aquaplaning lat. - + Handing - + Cornering grip - + Noise Noise inside - + Noise outside + + Rolling resistance + + Wear PAC oil level High speed Included in EU Tire Label - Not included in EU Tire Label Tire tests will keep their importance as always! 13

Tire Basics: What Drivers Should Know About Tires

Tire Basics: What Drivers Should Know About Tires 1. The Function of Tires Today s passenger-vehicle and light-truck tires contain over 200 separate materials and are engineered to deliver a varying combination