Tire testing machine, method for testing a tire and computer program

A tire testing machine (1), comprising:

• a rolling device (4),
• a tire mounting device (3), and
• a driving assembly (2),
• the driving assembly (2) being operated to rotate the rolling device (4) and/or the tire mounting device (3) according to a configurable driving cycle,
• whereby the rolling device (4) has a drum (5) with an outer peripheral surface (7),
• the tire (14) being rotatably mountable on the tire mounting device (3),
• the tire mounting device (3) being arranged such that the tire (14) engages with the outer peripheral surface (7) of the drum (5),
• with a first torque measuring assembly (12), a second torque measuring assembly (18), and an angular velocity measuring assembly (12),
• whereby the first torque measuring assembly (12) being operable to measure a drum drive torque of the drum (5) and the second torque measuring assembly (18) being operable to measure a tire drive torque of the tire (14),
• whereby the angular velocity measuring assembly (12) being operable to measure and/or calculate the angular velocity of the tire (ωT) and the angular velocity of the drum (ωD),
• with a calculation unit (20),
• whereby the calculation unit (20) being operable to calculate a current power loss of the tire (14) based on the drum drive torque, the tire drive torque, the angular velocity of the tire (ωT) and the angular velocity of the drum (ωD).