New ViaFriction General presentation H. Farstad, [email protected] 01.10.2015.

New ViaFrictionGeneral presentation

H. Farstad, [email protected]

● Features of the new ViaFriction unit– Twice as much braking power as previous model– Vertical load > 100 Kg (Previously 50Kg)– Less variation in vertical load than previous model– Can measure high friction surface in 20 Km/h– Measurement unit increased by 20Kg

● Still free floating vertical load, rugged design andeasy & accurate distance calibration due to ONE wheel.

New ViaFriction

Easy to useNew ViaFriction

● In Norway, the driver operates the system● Easy to use Windows user interface● User interface contains the information you need while

measuring● Extensive check of system while measuring● Extensive and easy to use self-test

Easy to maintainNew ViaFriction

● Easy to maintain the equipment, few parts● Self-test pinpoints the faulty part● Easy to fix mechanical and electrical problems● Remote control and service from ViaTech via PC

Fixed slip measurementNew ViaFriction

● Can adjust slip percentage from 1% to 75% in the software within 30 sec.

● Normal slip percentage 15-20%● Measures 30Km on 1000 litre tank● Excellent repeatability● Keeps calibration for years

Variable slip measurementNew ViaFriction

● Gives the whole curve● Gives much more

information than fixed slip

● F30, F60, Sp

Nantes April 2015

Testing ViaFriction

● 10 longitudinal friction devices participated from all over Europe(2 commercial available for road survey: ViaFriction and Griptester)

● 11 different surfaces on test track– Each track measured in 3 speeds, 40 60 and 80 km/h– Each track measured 5 times– Friction level from 0.1 to 1.0

● 7 different surfaces on normal road outside test track– Each surface measured 3 times– Road measurement speed 60 km/h

Testing ViaFriction

Nantes April 2015

● Project objectives– Create a standard for measurements

● Data processing– Average and standard deviation for each surface– Data sent Rosanne project by end of May– Rosanne Report much later

Testing ViaFriction

Nantes April 2015

5 measurements, unfiltered data

Nantes April 2015

Testing ViaFriction

Klikk ikonet for å legge til et bilde

ViaFriction: Repeatability

5 measurements give same result !

Data to Rosanne

Nantes April 2015

Testing ViaFriction

ViaFriction Repeatbility

ViaFriction-sum up

• On the market since 2006, more than 70 sold• Easy operation by use of a touch screen laptop• Operated in normal traffic speed with controlled water flow• 1000 liter water tank gives approx. 30 KM of survey• Standard trailer coupling with AL-KO stabiliser  • Result may be reported as text files. May be imported to Excel• Temperature-, humidity, MPD and GPS sensors as option• ViaPhoto system and web as option• Support different testing modes:

• Fixed slip mode (with adjustable % in the software)• Detection mode for reducing wear of tire & equipment• Variable slip mode

• Easy to calibrate, just adjustment in the software• Robust device with low maintenance costs• Remote diagnostics for online support• Trailer solution(EU approved) with superb suspention or on Truck/Van• Results provided instantly (realtime with WEB)

Some of the friction devices measure as much as 20 000 km per year on uneven roads

Appendix

ViaFriction ( CEN/TS15901-14)

ICAO approved

70 ViaFriction devices are sold since 2006-All still in use

ViaFriction + ViaPhotoW + GPS+WEB

Friction Limit AirTemp.

Hummidity

RoadTemp.

Dewpoint

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ViaFriction + ViaPhotoW + GPS+WEB

ViaPhotoLite-MK4

ViaFriction-design water system

Flow is controlled according to speedProtection system prevent dry run

The water tank of 1000-1200 liter can be filled automatically from water stored in the towing vehicle

1000 liter gives approx. 30 km of survey

SPIRAX:●

TREDAL has constructed its own suspension system. It was developed over several years and called SPIRAX

● The system consists of:● 1 Coil springs on swing arm● 2 Hydraulic double acting shock absorber● 3 Rubber Stopper to prevent breakage /

damage by overload or reckless driving.

● SPIRAX is based on the same principle as most cars have today, i.e. that a TREDAL trailer has virtually the same handling characteristics as your car. It provides comfortable and secure transport also on bad roads.

● ViaTech has further improved stability

ViaFriction-design trailer

EU-approved

ROaR (Norwegian Road Authorithy)

Product development of ViaFriction

Oscar (Norwegian Road Authorithy)

Oscar

ViaTech do the maintenance of OSCAR for the Norwegian publicroad administration (Vegvesen.no). Oscar is the Norwegian master for friction Also support during harmonisation

ROaR

Since 2005 ViaTech do the maintenance of ROAR for theNorwegian public road administration. 5 devices. Also support during harmonisation

Harmonisation in Norway

Picture taken 2013

Harmonisation in Norway-2015

Calibration certificate received 16/6-2015

ViaFriction - Optional water tank in the vehicle

ViaFriction - Optional Truck

ViaFriction - Optional Truck

ViaFriction-winter

Rough conditions: Temp, salt, sand and bumpy Requires a robust design

ViaFriction Airport

ViaFriction Extended-split friction