Indoor Testing Facility Analysis
"Arctic Falls Indoor tracks offer various test possibilities in the Active Safety Systems domain.
The tests diversity is multiple, one can evalutate the grip available on ice and snow, and define the saftety frame for dynamic tests."
- Arjeplog Test Management Engineering Service / Frédéric Potdevin
Beside the tyre development and testing, Arctic Falls Indoor tracks offer other various test possibilities in the Active Safety Systems domain. The facility is about 400 meter long by 15 meter width and shared in the length with approximately 100 meter of ice and 300 meter of snow. The friction of the ice and snow can be modified as the temperature above and beneath surfaces can be adjusted.
Test on polished ice
With a grip of 0.2, the 100 meter long ice surface allows ABS braking up to 40kph with stud less tyres mounted. Same speed can be achieved through acceleration test (Traction Control System) from standstill start with the same friction level.
Test on snow
On snow, the 290 meter long surface allowed for the ABS braking and TCS acceleration a speed up to 80 – 85 kph with a grip of 0,4. On this surface, regarding dynamics tests, the frame of maneuvers is extended to slaloms and light lane changes. With an ideal 15 meter between cones, a speed of 35 to 40kph can be reached within the slalom; giving the opportunity to check the under steering or over steering of the Vehicle Dynamic Control system of the car. The speed achieved in the slalom could be then rised by increasing the distance between cones.
See below some example of slalom and light lane changes configuration with recommended speed.
Test of driver assist systems
On the side of the dynamic testing, additional systems can be developed and validated in the indoor facility such “Driver Assistance systems” based on intelligent sensor technology. The predictive emergency braking system, the Adaptive Cruise Control, the City Park Assistance system or even the Autonomous driving functions have definitely their place in the facility.
Active braking tests
Other tests that didn’t requier dynamic tests from ATMAB are also possible to perform in the arena. They are based on active braking. See below an example of different Bosch systems that could be tested also indoor.
|Bosch Function Line||Function name|
|Brake & Boost Assist||BDW||Brake Disc Wiping|
|HBA||Hydraulik Brake Assist|
|HBB||Hydraulic Brake Boost|
|HBC||Hydraulic Boost Failure Compensation|
|HFC||Hydraulik Fading Compensation|
|HRB||Hydraulic Rear wheel Boost|
|Surround Sensing Support||ABA||Adaptive Brake Assist|
|ABP||Automatic Brake Prefill|
|AWB||Automatic Warning Brake|
|AEB||Automatic Emergency Brake|
|CCB||Cruise Control with Brake Intervention|
|CCL||Cruise Control Speed Limiter|
|VLC-BB||Vehicle Longitudinal Control - Engine&Brake|
|VLC-BS||Vehicle Longitudinal Control - Engine&Brake Stop&Go|
|Automatic Park Assist / city park|