Download - Presentation Opti Grip T U E V
TÜV SÜD Automotive GmbH
Test Results Of Summer Tires 225/45 R17 94W
Abstract of Test Report No. 76230122
Influence Of Mileage On Tire Performances
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Project
Description
TÜV SÜD Automotive
Objective
Some of the properties above were examined on used tires as
well.
The objective of this project was to benchmark 225/45 R17 94W
passenger car summer tires of different makes against each
other during their mileage with special regards to:
DurabilitySafety on wet and
dry roads
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Scope
TÜV SÜD Automotive
Durability
Convoy driving over a distance of 30,000 km
(three runs over a 10,000 km distance on public
roads with identical vehicles fitted with the
benchmark tire makes)Tire tread
wear test
NOTE: these “new” tires served as “used”
tires in subsequent tests.
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Scope
TÜV SÜD Automotive
Safety on wet roads
Subjective assessment of ride and handling criteria and timed laps on
a wetted handling circuit (after 0, 10000, 20000 & 30000 km)
Measurement of the transmittable lateral forces when cornering
through a water basin (after 0 and 30000 km)
Measurement of the aquaplaning speed at 15% slip in a water basin
of 9 mm water depth (after 0, 10000, 20000 & 30000 km)
Measurement of braking distance from 80-20 kph (ABS braking) on:
- wetted asphalt (after 0, 10000, 20000 & 30000 km)
- wetted concrete (after 0 and 30000 km)Braking
Handling
Aquaplaning
in corners
Aquaplaning
longitudinal
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Scope
TÜV SÜD Automotive
Safety on dry roads
Braking Measurement of braking distance from 100-5 kph
(ABS braking) on dry asphalt (after 0 and 30000 km)
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Test Population
TÜV SÜD Automotive
Summer tires 225/45R17 94W
Manufacturer
Continental
Goodyear
Michelin
Control tire: new Goodyear OptiGrip
OptiGrip
Sport Contact 3
Primacy HP
Commercial name Tread design
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Test Vehicles
TÜV SÜD Automotive
The wear test was performed with three
test vehicles specified as follows:
VOLKSWAGEN GOLF Mk V 2.0 FSI
Body 5-door saloon
Engine type
Max. Engine power
Max. Speed
4 cyl. 2.0l petrol engine
110 kW / 6000 min-1
206 km/h
Drive concept
Max. Engine torque
Gearbox
Max. Permissible weight
front
200 Nm / 3500 min-1
6-speed manual transmission
1890 kg
VOLKSWAGEN GOLF Mk V 1.9 TDI
Specifications of test vehicle used for
tests on wet and dry surface:
Body
Max. Engine power
Engine type
Max. Speed
Drive concept
Max. Engine torque
Gearbox
Max. Permissible weight
5-door saloon
4 cyl. 1.9l turbo diesel engine, direct injection
77 kW / 4000 min-1
185 km/h
front
250 Nm / 1900 min-1
5-speed manual transmission
1910 kg
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Test Details
Wear
TÜV SÜD Automotive
Tires fitted to five identical vehicles driven in convoy
over a total distance of 10,000 km :
• Chassis alignment check & adjustments as needed
• Driver / vehicle rotation every 125 km; tire / vehicle rotation
every 500 km to ensure same conditions
• Tread wear measured by digital gauge (1/10 mm accuracy)
• Measurement intervals: every 3,350 km;
6 or 7 (Goodyear) spots in the tire„s 4 main grooves and on each
shoulder measured 5 x on each tire (every 72°)
• Tire inflation pressure checked at each tire / vehicle rotation (every 500 km)
– no air loss noted on any of the test tires throughout the test
Key Points
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Test Results
Wear
TÜV SÜD Automotive
Expected Lifetime (Average of most worn axle)
100,0%
96,9%
71,6%
55% 60% 65% 70% 75% 80% 85% 90% 95% 100% 105%
after 30000 km Michelin
Continental
Goodyear OptiGrip
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Test Details
Performance
TÜV SÜD Automotive
General Key Points
• Results of tread wear test (exp. Lifetime) are subject to linear extra-
polation (based on wear between 0 and 30,000 km in the most worn
groove of the average of axle of each brand)
• Relative performance:
performance compared to average performance of all tires in the test
- value above 100 % = better
- value below 100 % = worse
• Results show both absolute values measured and % evaluation
in comparison to the average performance of all tires in the test.
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Test Details
Wet Braking
TÜV SÜD Automotive
Key Points
• Test vehicle equipped with vehicle speed measurement equipment
• One tire make selected as control tire / re-tested at end of each
complete sequence to consider potential changes of test
conditions (e.g. temperature)
• Deceleration on artificially wetted asphalt and concrete
• Relevant factor for result: stopping distance
• Minimum of 8 validated runs for each tire
• Mean deceleration calculated based on 8 values
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Results On
Wet Surface
TÜV SÜD Automotive
Braking performance on wet surface, new / used tires (lowµ)
100,0%
100,0%
100,0%
100,0%
100,3%
100,1%
93,5%
95,1%
90,4%
89,3%
85,7%
75,6%
96,4%
95,1%
86,7%
73,0%
65% 70% 75% 80% 85% 90% 95% 100% 105%
new
after 10000 km
after 20000 km
after 30000km
Goodyear OptiGrip
Michelin
Continental
Control tire = new Goodyear OptiGrip
lowµ
Goodyear OptiGrip
Michelin
Continental
Control tire = new Goodyear OptiGrip
Goodyear OptiGrip
Michelin
Continental
Control tire = new Goodyear OptiGrip
Goodyear OptiGrip
Michelin
Continental
Control tire = new Goodyear OptiGrip
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Results On
Wet Surface
TÜV SÜD Automotive
Braking performance on wet surface, new / used tires (highµ)
100,0%
100,0%
99,7%
96,7%
99,4%
92,6%
100,0%
80,2%
70% 75% 80% 85% 90% 95% 100% 105%
new
after 30000km
Control tire = new Goodyear OptiGrip
Goodyear OptiGrip
Michelin
Continental
Control tire = new Goodyear OptiGrip
Goodyear OptiGrip
Michelin
Continental
highµ
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Test Details
Aquaplaning Long.
TÜV SÜD Automotive
Key Points
Test vehicle equipped with vehicle speed measuring system and
rotation wheel spin sensors on both front wheels
• Driving: The vehicle is driven with constant speed into a flooded water
basin with an approximate water depth of 9 mm.
One side of the vehicle is running on dry asphalt the other side runs
through the flooded segment.
• Aquaplaning longitudinal: Characterized by maximally reached
aquaplaning speed. Four valid runs in same gear.
• Test: Acceleration with full throttle when entering the water basin.
Speed and wheel spin are recorded. The corresponding vehicle speed
to a wheel spin difference of 15% represents the aquaplaning speed.
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Results On
Wet Surface
TÜV SÜD Automotive
Aquaplaning longitudinal ability, new / used tires
100,0%
100,0%
100,0%
100,0%
97,5%
97,2%
89,2%
95,7%
93,1%
90,4%
83,6%
96,7%
89,9%
87,0%
79,8%
65% 70% 75% 80% 85% 90% 95% 100% 105%
new
after 10000 km
after 20000 km
after 30000 kmGoodyear OptiGrip
Michelin
Continental
Control tire = new Goodyear OptiGrip
Goodyear OptiGrip
Michelin
Continental
Control tire = new Goodyear OptiGrip
Goodyear OptiGrip
Michelin
Continental
Control tire = new Goodyear OptiGrip
Goodyear OptiGrip
Michelin
Continental
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Test Details
Aquaplaning Corn.
TÜV SÜD Automotive
Key Points
Test vehicle equipped with vehicle speed measuring
equipment and lateral acceleration sensor
• Driving: Constant speed & steering angle on dry asphalt
(circle with app. 20 m segment flooded water)
• Aquaplaning in corners: Characterized by maximally transmittable
lateral acceleration as well as drop after reaching max (the flatter
the gradient the easier to control)
• Test: Lateral acceleration and speed recorded when vehicle enters
flooded segment (light barrier); vehicle speed is increased run by run
until clear decrease of lateral acceleration occurs
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Results On
Wet Surface
TÜV SÜD Automotive
Aquaplaning in corners ability, new / used tires
100,0%
100,0%
80,9%
92,3%
69,3%
95,4%
61,7%
50% 60% 70% 80% 90% 100% 110%
new
after 30000 km
Control tire = new Goodyear OptiGrip
Goodyear OptiGrip
Michelin
Continental
Goodyear OptiGrip
Michelin
Continental
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Test Details
Wet Handling
TÜV SÜD Automotive
Key Points
Subjective assessment of handling & ride by experienced test
drivers on special, artificially wetted handling circuit (asphalt):
• Driving at and beyond vehicle„s stability limit (ESP off / ABS on)
• Avoidance of excessive under- / oversteer while driving at stability
limit (striving for maximum reproducibility)
• Lap times recorded and average speed calculated from lap time
and track length
• Use of 10-point scale for different performance criteria
one overall evalution score
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Results On
Wet Surface
TÜV SÜD Automotive
Handling ability on wet surface, new / used tires
100,0%
100,0%
100,0%
100,0%
100,3%
99,2%
97,0%
97,2%
96,9%
94,9%
93,0%
90,3%
98,6%
95,0%
89,1%
83,1%
65% 70% 75% 80% 85% 90% 95% 100% 105%
new
after 10000 km
after 20000 km
after 30000 km
Control tire = new Goodyear OptiGrip
Goodyear OptiGrip
Michelin
Continental
Control tire = new Goodyear OptiGrip
Goodyear OptiGrip
Michelin
Continental
Control tire = new Goodyear OptiGrip
Goodyear OptiGrip
Michelin
Continental
Control tire = new Goodyear OptiGrip
Goodyear OptiGrip
Michelin
Continental
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Test Details
Dry Braking
TÜV SÜD Automotive
Key Points
• Test vehicle equipped with vehicle speed measurement equipment
• One tire make selected as control tire / re-tested at end of each
complete sequence to consider potential changes of test
conditions (e.g. temperature)
• Deceleration on dry asphalt
• Relevant factor for result: stopping distance
• Minimum of 8 validated runs for each tire
• Mean deceleration, calculated based on 8 values
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Results On
Dry Surface
TÜV SÜD Automotive
Braking performance on dry surface, new / used tires
100,0%
100,0%
98,2%
101,0%
99,0%
102,4%
99,9%
100,1%
95% 100% 105%
new
after 30000 km
Control tire = new Goodyear OptiGrip
Goodyear OptiGrip
Michelin
Continental
Control tire = new Goodyear OptiGrip
Goodyear OptiGrip
Michelin
Continental