Dry braking
Dry braking test consists of driving vehicle at high speed, then applying brakes.
The distance covered by the car when coming to a complete stop is measured by ultra-precise GPS equipment.
All Davanti tyres are put through a rigorous testing and development regime. Learn more about our testing disciplines below, or select a tyre to see which tests it has been subjected to.
Dry braking test consists of driving vehicle at high speed, then applying brakes.
The distance covered by the car when coming to a complete stop is measured by ultra-precise GPS equipment.
Wet braking test consist of driving vehicle at high speed, then applying brakes.
The distance covered by the car when coming to a complete stop is measured by ultra-precise GPS equipment.
In our testing we grade performance parameters across four categories:
Tests areconducted both at high speed – pushing the tyres beyond the limit of their grip – and also at typical driving speeds over a range of controlled surfaces and bumps. Dry handling is not all about high speed performance. Top lap times are not relevant on dry roads. Tyres should provide safety reserves when taken to their limit and their road performance should be effortless and predictable since this helps a driver to relax and avoid driving errors. For this purpose, the test driver evaluates the reaction to steering input and cornering as well as rear axle stability. They look for how tyres react to changes in direction and pace, the amount of steering lock required and for any loss of grip to be progressive.
Wet handling testing consist of both objective and subjective tests.
The objective test parameter measured is the time taken for a high-speed lap of a wet handling circuit. This is a broad ranging test that takes in to account a number of tyre performance attributes, such as the tyre’s ability to transfer the car’s power to the road, and ultimately the amount of control the driver has. The subjective test goes beyond the lap time to give a greater insight in to the tyre’s performance. The test driver applies a rating to a number of parameters, based on their knowledge and experience. They are focusing on driver experience – looking for safe, predictable handling, and effortless road performance.
The speed at which a tyre is deemed to by fully aquaplaning is when the front driven wheel speed is 15% faster than the speed the vehicle is actually travelling
The higher the speed achieved before full aquaplaning is reached, the better the tyre is at preventing the phenomenon. Davanti's testing process creates the conditions for aquaplaning to engineer tread patterns that break up the surface of the water and drive it away from the contact area more effectively.
On a demanding dry handling track, the tyre is rated on the following characteristics:
On a demanding dry handling track, the tyre is rated on the following characteristics:
The vehicle is driven on a wet asphalt circle with constant steering angle applied, thus maintaining a consistent diameter.
The vehicle is accelerated up to a speed at which grip is lost, with the lap time at this speed measured by data logging equipment.
On a demanding dry handling track, the tyre is rated on the following characteristics:
On a demanding dry handling track, the tyre is rated on the following characteristics:
Preventing that dreaded moment when you hit the brakes on ice and the vehcle just starts to slide is a key expectation of winter tyres
Ice traction is tested by measuring the time taken to accelerate to a predetermined speed. The ice braking test measures the distance covered when slowing from this speed to a stop. These tests are carried out on a carefully prepared and controlled brushed ice surface.
The vehicle is driven from a standing start up to 20 km/h. Data logging equipment measures the time taken for the vehicle to accelerate from 5 to 20 km/h.
We test ice handling at the 1,300 metre track at Ivalo in the Arctic Circle
A fast and flowing series of tightening ice turns and hairpins really tests the tyres. All are negotiated with any electronic driver aids disabled - ensuring the only things keeping the vehicle on-track are the driver and the tyres. The track is graded between runs and the result decided by an average of lap times.
On a hard packed snow track, the tyre is rated on the following characteristics:
On a hard packed snow track, the tyre is rated on the following characteristics:
The vehicle is driven onto a medium-packed snow surface at a steady 45 km/h.
The brakes are applied and sophisticated data logging equipment measures the distance covered between 40 and 5 km/h.
The vehicle is driven from a standing start up to 40 km/h.
Data logging equipment measures the time taken for the vehicle to accelerate from 5 to 40 km/h.
Snow handling is tested on Test World’s demanding Alpine Circuit.
Featuring tight hairpins, long straights, steep elevation changes and off-camber corners, this facility goes far beyond the typical conditions encountered by most motorists. Our testing consists of repeated timed runs on this track, to ensure the performance of our tyres consistently and reliably meets and exceeds the performance requirements of drivers on snow-covered roads.
Sand traction is evaluated in two ways:
On a grass and mud off-road circuit, the tyre is rated on the following characteristics:
On a grass and mud off-road circuit, the tyre is rated on the following characteristics:
On a hard-packed gravel surface, the brakes are applied and the distance covered whilst braking from 50 to 0 km/h is measured.
On a cut grass surface, the vehicle is driven from a standing start up to 40 km/h while towing a weighted trailer. Data logging equipment measures the distance the vehicle requires to accelerate from 0 to 40 km/h.
On a grass and mud off-road circuit, the fastest lap time achievable by the tyre is measured using data logging equipment.
Tyres are testing on vehicles, driving on real roads.
A minimum of 20,000km is covered per set, and tread wear is measured at regular intervals to evaluate wear rates throughout the life of the tyre tread..
Drivers don't practice emergency stops - when you need to perform one you need to know that your car will halt in a safe and composed manner.
Learn moreStopping quickly, smoothly and safely on rain-soaked roads with little traction is a vital safety feature of tyres.
Learn moreDry handling performance should exceed all normal driving requirements
Learn moreWet roads bring most drivers as close as they will ever get to the limit of their tyres' capability. The drastic reduction of natural surface grip caused by rainfall can expose significant performance differences between tyres.
Learn moreAquaplaning (or hydroplaning) is where water gets between the tyre surface and the road. Tyre tread should disperse water to prevent this.
Learn moreDry road condition stability should exceed all normal driving requirements.
Learn moreDry road condition steering feel and response should exceed all normal driving requirements
Learn moreConfidence when steering in wet conditions is integral to the performance of all Davanti tyres
Learn moreIcy road condition stability should exceed all normal driving requirements.
Learn moreIcy road condition steering feel and response should exceed all normal driving requirements
Learn moreIce braking is difficult due to the lack of friction. Winter tyres should be formulated to remain soft in icy conditions and to react with the icy sirface to minimise stopping distances.
Learn moreThe ability to obtain traction for acceleration is of paramount importance to all Davanti winter tyres.
Learn moreIce handling is another critical role of winter tyres. Maintaining cornering grip during forward motion as weight shifts on a surface with no grip means you need your tyres to work even harder.
Learn moreStable, reliable and reassuring handling is an important characteristic we strive for with all Davanti winter tyres.
Learn moreConfident and precise steering, with a pleasant feel, is of vital importance to all drivers of Davanti winter tyres
Learn morePossibly the most important feature of a winter tyre - the ability to come to a controlled halt in low-friction conditions
Learn moreThe ability to obtain traction for acceleration is of paramount importance to all Davanti winter tyres.
Learn moreThe unique characteristics of snow make it one of the most challenging surfaces for tyres. They need to maintain forward and cornering traction and plough snow away form the contact area without the tread becoming clogged.
Learn moreReliable traction on loose surfaces is a vital component of the performance characteristics of all-terrain tyres.
Learn moreOn loose surfaces, vehicle stability is essential. As the only part of the vehicle in contact with the ground, the tyre has a significant influence on the stability.
Learn moreConfident and precise steering, with a pleasant feel, is of vital importance to all drivers of Davanti off-road
Learn morePossibly the most important feature of a tyre - the ability to come to a controlled halt in low-friction conditions
Learn moreA common, but surprisingly tricky situation. Traction on the low-friction surface of wet grass, especially while towing, is essential for off-road tyres
Learn moreConquering difficult terrain in a timely and comfortable manner - the mark of a great all-terrain tyre
Learn moreDriving performance - as important as it is - means little without the ability to maximise driving range and tyre lifespan mile after mile to deliver real value for money
Learn moreApplus+ IDIADA offers design, testing, engineering, and homologation services to the automotive industry worldwide.
An international team of more than 2,450 engineers and technical experts ensure that all testing at its sites are completed and recorded to a high standard.
Davanti uses its first class facilities at Tarragona near Barcelona - the most comprehensive summer tyre proving ground in Europe - to test tyres and tyre concepts.