tÜv sÜd report vector seasons
DESCRIPTION
TÜV SÜD report Vector SeasonsGoodyear Vector Seasons vs CompetitorsTRANSCRIPT
TÜV SÜD Automotive GmbH
Tire Performance Benchmark Of All Season Tires
175/65 R14 82T
Abstract of Test Report No. 76230122/2
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Project
Description
TÜV SÜD Automotive
Objective
The objective of this project was, to benchmark the performance
of 175/65 R14 82T passenger car all season tires of different
makes against each other with special regards to their safety on:
Snow surface Ice surface Wet surface
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Scope
TÜV SÜD Automotive
Safety on snow-covered surfaces
Subjective assessment of ride and handling criteria and timed laps
on a snow-covered handling circuit
Measurement of braking distance from 50-10 kph (ABS braking) Braking
Handling
AccelerationMeasurement of acceleration time from 5-30 kph with electronic
traction control (ETC) switched on
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Scope
TÜV SÜD Automotive
Safety on icy surfaces
Measurement of lap times on an icy circular test track driving at
constant speed at the stability limits with electronic stability
systems (ESP) switched off
Measurement of braking distance from 20-8 kph (ABS braking) Braking
Lateral Grip
AccelerationMeasurement of acceleration time from 8-16 kph with electronic
traction control (ETC) switched off
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
an artificially wetted handling circuit
Measurement of the transmittable lateral forces when cornering
through a water basin
Measurement of the aquaplaning speed at 15% slip in a water basin
of 9 mm water depth
Measurement of braking distance from 80-20 kph (ABS braking) on:
- wetted asphalt (low µ)
- wetted asphalt (high µ)
Braking
Handling
Aquaplaning
curved
Aquaplaning
longitudinal
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Test Population
TÜV SÜD Automotive
All season tires 175/65R14 82T
Manufacturer
Hankook
Goodyear
Vredestein
Control tire: Goodyear Vector 4Seasons
Vector 4Seasons
Centum H 720
Quatrac 2
Commercial name Tread design
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Test Vehicles
TÜV SÜD Automotive
The tests were performed with
three differently equipped test vehicles
specified as follows:
VOLKSWAGEN POLO Mk IV
Body 5-door saloon
(Picture exemplarily)
Gearbox 5-speed manual transmission
Drive concept front
Snow performance (1.4 TDI):
Engine type 3 cyl. 1.4l turbo diesel engine, direct injection
Max. Engine power 51 kW / 4000 min-1
Max. Speed 164 kph
Max. Engine torque 155 Nm / 1600 min-1
Max. Permissible weight 1650 kg
Ice performance (1.4 TDI, blue motion):
Engine type 3 cyl. 1.4l turbo diesel engine, direct injection
Max. Engine power 59 kW / 4000 min-1
Max. Speed 176 kph
Max. Engine torque 195 Nm / 2200 min-1
Max. Permissible weight 1550 kg
Wet performance (1.9 TDI):
Engine type 4 cyl. 1.9l turbo diesel engine, direct injection
Max. Engine power 74 kW / 4000 min-1
Max. Speed 188 kph
Max. Engine torque 240 Nm / 1800 min-1
Max. Permissible weight 1680 kg
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Test DetailsPerformance
TÜV SÜD Automotive
General Key Points
• Results show percent evaluation in comparison to the performance of
the Goodyear tire:
- value above 100 % = better
- value below 100 % = worse
• One tire make selected as control tire (except aquaplaning straight and
curved), re-tested at end of each complete sequence in order to
consider potential changes of test conditions, (e.g. temperature, test
track characteristics).
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Test DetailsAquaplaning Long.
TÜV SÜD Automotive
Key Points
Test vehicle equipped with GPS-based speed measuring device
and rotation wheel spin sensors on both front wheels
• Driving: Constant speed while running into a flooded water basin
(approximate water depth 9 mm) on one side of the car. The other side
still on dry asphalt.
• 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
Test DetailsAquaplaning Curved
TÜV SÜD Automotive
Key Points
Test vehicle equipped with GPS-based speed measuring
device and lateral acceleration sensor
• Driving: Constant speed & steering angle on dry asphalt circle with
an approx. 20 m water flooded segment.
• Aquaplaning in corners: Characterized by maximally transmittable
lateral acceleration as well as decreasing characteristics after
reaching the maximum (the flatter the gradient, the easier to control)
• Test: Lateral acceleration and speed recorded when vehicle enters the
flooded segment (triggered by light barrier). The vehicle speed is
increased run by run until clear decrease of lateral acceleration occurs.
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Test DetailsAcceleration On Ice And
Snow-Covered Roads
TÜV SÜD Automotive
Key Points
Test vehicle equipped with GPS-based speed measurement
device
• Driving: Vehicle is accelerated with full throttle on a straight test track.
On snow surface with traction control switched on, on ice off.
• Test: Acceleration time between determined initial and end speed is
recorded.
• Acceleration: Mean acceleration is calculated based on 8 values.
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Test DetailsBraking on ice, wet and
snow-covered roads
TÜV SÜD Automotive
Key Points
Test vehicle equipped with GPS-based speed measurement
device
• Driving: Deceleration with full pedal pressure on a straight test track
(ABS braking).
• Test: Braking distance between determined initial and end speed is
recorded.
• Deceleration: Mean deceleration is calculated based on 8 values.
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Test DetailsLateral Ice Grip
TÜV SÜD Automotive
Key Points
Test vehicle equipped with laptiming device
• Driving: Constant speed & steering angle on an iced circle within
the stability limits (excessive under- / oversteering is avoided).
• Test: Lap time is recorded.
• Lateral acceleration: The mean lateral acceleration is calculated based
on 8 values.
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Test DetailsHandling on wet and
snow-covered roads
TÜV SÜD Automotive
Key Points
• Driving: Test vehicle driven within its stability limits by experienced
test drivers on special handling circuits (ESP off / ABS on). Excessive
under- / oversteering is avoided (striving for maximum reproducibility)
• Test: Lap times are recorded. Handling & ride characteristics are
subjectively assessed.
• Handling characteristics: The driver evaluates the different performance
criteria using a 10-point scale where a 10 is the max. reachable mark. A
mean value is calculated thereof. The laptimes support the
reproducibility and a mean speed is generated of 3 valid runs.
Test vehicle equipped with laptiming device
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Results
Snow Performance
TÜV SÜD Automotive
Performance on snow-covered tracks
100,0%
100,0%
100,0%
95,0%
93,2%
96,5%
93,3%
97,6%
97,6%
80% 85% 90% 95% 100% 105%
Acceleration
Braking
Handling
Goodyear Vector 4Seasons
Hankook
Vredestein
Goodyear Vector 4Seasons
Hankook
Vredestein
Goodyear Vector 4Seasons
Hankook
Vredestein
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Results
Ice Performance
TÜV SÜD Automotive
Performance on icy tracks
100,0%
100,0%
100,0%
94,2%
89,0%
94,8%
94,7%
86,0%
103,0%
70% 75% 80% 85% 90% 95% 100% 105%
Acceleration
Braking
Lateral Grip
Goodyear Vector 4Seasons
Hankook
Vredestein
Goodyear Vector 4Seasons
Hankook
Vredestein
Goodyear Vector 4Seasons
Hankook
Vredestein
TÜV SÜD Automotive GmbH • TÜV SÜD Group
Results
Wet Performance
TÜV SÜD Automotive
Performance on artificially wetted tracks
100,0%
100,0%
100,0%
100,0%
100,0%
93,9%
94,8%
85,4%
91,0%
94,1%
94,3%
95,9%
96,5%
98,2%
97,6%
75% 80% 85% 90% 95% 100% 105%
Aquaplaning(straight)
Aquaplaning(curved)
Braking(low µ)
Braking(high µ)
Handling
Goodyear Vector 4Seasons
Hankook
Vredestein
Goodyear Vector 4Seasons
Hankook
Vredestein
Goodyear Vector 4Seasons
Hankook
Vredestein
Goodyear Vector 4Seasons
Hankook
Vredestein
Goodyear Vector 4Seasons
Hankook
Vredestein