Method and device for indicating a tire under-inflation and informations recording medium for carrying out said method

The method involves observing information representing radius of curvature of a trajectory followed by a wheel at a time of turn. Number of revolutions of each wheel is determined, when the wheel is rotated to a predetermined distance. The difference between the number of revolutions of each wheel is calculated for indicating an under-inflated tire, based on the information about the radius of curvature. Independent claims are also included for the following: (a) a recording medium comprising an instruction for performing a method of indicating under-inflation of a vehicle tire (b) a system for indicating under-inflation of a vehicle tire.