Abstract: A beltless pneumatic vehicle tire has a ratio of cross-sectional width to cross-sectional height of 1 or 0.85 determined in accordance with E.T.R.T.O standards and includes: a carcass of diagonal configuration including carcass inserts arranged one atop the other. Each carcass insert includes mutually parallel running reinforcement elements made of textile material and a rubber matrix wherein the reinforcement elements are embedded. The tire defines a tire zenith and a peripheral direction. The reinforcement elements of each two mutually adjacent ones of the carcass inserts are disposed relative to one another in a cross-bracing arrangement and run at respective equal acute angles (?, ?) to the peripheral direction at the tire zenith. For a beltless pneumatic vehicle tire wherein the ratio is 1, the angle is between 28° and 34° and wherein the ratio is 0.85, the angle is between 26° and 32°.

Abstract: Disclosed is a method for detection of a pressure loss in motor vehicle tires, which detects pressure loss on at least one vehicle tire based on several parameters, which are calculated from the rolling circumference of the tires. To this end, currently calculated parameters are compared with learnt values of the parameters.

Abstract: Disclosed is a method of indirect tire pressure monitoring. The method includes: learning test variables (DIAG, SIDE, AXLE), which describe the rotational movements of the wheels; determining rolling circumference differences (?DIAG, ?SIDE, ?AXLE) from actually determined test variables and the learnt test variables; learning at least one torsion natural frequency fp for at least one tire from the oscillation behavior of the individual tires; determining at least one shift of the torsion natural frequency ?fp from at least one actually determined torsion natural frequency and from the at least one learnt torsion natural frequency; and combining the rolling circumference differences (?DIAG, ?SIDE, ?AXLE) with the at least one shift of the torsion natural frequency fp in a joint warning strategy for detecting and warning of tire inflation pressure loss.

Abstract: Disclosed is a method for detection of a pressure loss in motor vehicle tires, which detects pressure loss on at least one vehicle tire based on several parameters, which are calculated from the rolling circumference of the tires. To this end, currently calculated parameters are compared with learnt values of the parameters.

Abstract: Disclosed is a method of indirect tire pressure monitoring. The method includes: learning test variables (DIAG, SIDE, AXLE), which describe the rotational movements of the wheels; determining rolling circumference differences (?DIAG, ?SIDE, ?AXLE) from actually determined test variables and the learnt test variables; learning at least one torsion natural frequency fp for at least one tire from the oscillation behavior of the individual tires; determining at least one shift of the torsion natural frequency ?fp from at least one actually determined torsion natural frequency and from the at least one learnt torsion natural frequency; and combining the rolling circumference differences (?DIAG, ?SIDE, ?AXLE) with the at least one shift of the torsion natural frequency fp in a joint warning strategy for detecting and warning of tire inflation pressure loss.

Abstract: Disclosed are different processes for the determination of the internal pressure, particularly of the minimum pressure of the tire of a motor vehicle during driving operation, through an analysis of the characteristic vibration behavior of the wheel, whereby the standardized amplitude is determined from the vibration spectrum determined and the resonance frequency is observed.

Abstract: Disclosed are different processes for the determination of the internal pressure, particularly of the minimum pressure of the tire of a motor vehicle during driving operation, through an analysis of the characteristic vibration behavior of the wheel, whereby the standardized amplitude is determined from the vibration spectrum determined and the resonance frequency is observed.