Road tests

winter

The main tasks during road tests is to assess the impact of tires on driving safety, driver comfort during driving and operating parameters of vehicles.

For this purpose the road division of the Tire Testing Center uses modern technical equipment, the latest testing methods, as well as a test field located in the Yaroslavl region near the village of Tunoshna.

Types of test and test sites:

Summer cycle

Winter cycle

1. Determination of adhesion properties of the coating with rolled snow

Tests for braking and acceleration to determine the longitudinal grip, as well as tests to determine characteristics of lateral grip held on the winter site of the test field covered with a hard-packed snow.

Section length – 130 m
Width – 40 m

2. Assessments of stability and controllability on the hard packed snow surface

Tests to assess the stability and controllability are held at the winter test field covered with hard packed snow; and the estimated figure is the travel time along the route of closed configuration and driver’s freeform comments.

Section length – 130 m
Width – 40 m

3. Determination of adhesion properties and assessments of stability and controllability on ice surface

Testing a vehicle on glaze ice requires a level surface, the best suited for this is the surface of a frozen lake, this is why special test drive sections are prepared near the lakes of Karelia, Petrozavodsk.

Section length – 150 m
Width – 30 m

4. Driver comfort assessment

For this purpose the conduct of tires on different surfaces is checked s well as their effect on driving comfort.

A test-driver’s comment serves as an estimate.

5. Winter tests for compliance with the UNECE Regulation № 117

5.1. Determination of the coefficient of friction on the snow surface for Class C1 tires (passenger) and C2 (light truck). Braking method.

5.2. Determination of the coefficient of friction on the snow surface for Class C3 tires (heavy trucks). Acceleration method.

Tests are performed on a special test field with compacted snow, prepared in accordance with the requirements of the UNECE Regulation № 117.

Section length – 500 m
Width – 8 m

All of the above tests are performed with precision equipment operating on the basis of GPS and GLONASS satellite systems, as well as acoustic system of high sensitivity.

Equipment is registered with the State Register of Measurement Devices of the Russian Federation is certified accordingly. Testing procedure. Issuance of a certification testing protocol. Obtaining the approval of tires type with a certificate of conformity.