Abstract: Passenger vehicle tire having a tread extended on either side by sidewalls, this tread being provided with an asymmetric tread pattern with respect to a median plane that divides this tread into two parts with the same axial width, this axial width being measured in a direction parallel to the axis of rotation, an external part and an internal part, this external part being situated between this median plane and the sidewall intended to be positioned on the outside of a vehicle, and the internal part being situated between the same plane and the sidewall intended to be positioned towards the inside of the same vehicle, the internal part and the external part each having at least one void that forms a groove or is intended to form a groove when the tread has partially worn away, these voids defining, in the new state and for each (internal and external) part, a total voids volume Vi0 and Ve0, respectively, and a voids surface ratio Ti0 and Te0, respectively, these ratios being other than zero and such that, in

Abstract: Tire tread comprising a tread surface intended to come into contact with a roadway, this tread comprising at least one sipe extending in a main direction D and of mean width E, this sipe comprising in the main direction D at least one part sipe of shallow depth HF and at least one part sipe of great depth HG, the depth HF being less than the depth HG, each part sipe of shallow depth and each part sipe of great depth comprising an end region, this tread further comprising at least one insert oriented in a direction different from the main direction D of the sipe, this insert being positioned wholly within the thickness of the tread so as to be situated radially on the inside of a part sipe of shallow depth HF, this tread being such that at least the part sipe of shallow depth HF situated radially on the outside of the insert is provided, at its end region, with a widening forming a channel of maximum width W, this maximum width W being greater than the mean width E of the sipe.

Abstract: A tread for a tire provided with a pattern comprising a plurality of main grooves formed on each half of the tread on each side of a median plane X-X?, each of these main grooves, of mean width L, opening axially to the outside and extending axially inward as far as a distance from the median plane X-X? that is comprised between 2.5 and 10% of the width TW of the tread, these main grooves giving this tread a preferred direction of running, this tread further comprising a plurality of additional grooves comprising a first and a second end, the mean direction connecting the first and second ends forming, with the circumferential direction, a small angle A greater than zero degrees and at most equal to 20 degrees, this tread being characterized in that opening onto each main groove is at least one additional groove and in that the axially innermost end of each additional groove comes into contact with the road surface before the axially outermost end of the same additional groove.

Abstract: Tire tread comprising a tread surface intended to come into contact with a roadway, this tread comprising at least one sipe extending in a main direction D and of mean width E, this sipe comprising in the main direction D at least one part sipe of shallow depth HF and at least one part sipe of great depth HG, the depth HF being less than the depth HG, each part sipe of shallow depth and each part sipe of great depth comprising an end region, this tread further comprising at least one insert oriented in a direction different from the main direction D of the sipe, this insert being positioned wholly within the thickness of the tread so as to be situated radially on the inside of a part sipe of shallow depth HF, this tread being such that at least the part sipe of shallow depth HF situated radially on the outside of the insert is provided, at its end region, with a widening forming a channel of maximum width W, this maximum width W being greater than the mean width E of the sipe.

Abstract: A tread for a tire provided with a pattern comprising a plurality of main grooves formed on each half of the tread on each side of a median plane X-X?, each of these main grooves, of mean width L, opening axially to the outside and extending axially inward as far as a distance from the median plane X-X? that is comprised between 2.5 and 10% of the width TW of the tread, these main grooves giving this tread a preferred direction of running, this tread further comprising a plurality of additional grooves comprising a first and a second end, the mean direction connecting the first and second ends forming, with the circumferential direction, a small angle A greater than zero degrees and at most equal to 20 degrees, this tread being characterized in that opening onto each main groove is at least one additional groove and in that the axially innermost end of each additional groove comes into contact with the road surface before the axially outermost end of the same additional groove.

Abstract: The present arrangement relates to a method and a device for optimizing the regulation behavior of a vehicle dynamics control in motor vehicles. An improved regulation behavior may be achieved by making available information on a tire property, such as the tire type, the kind of tire, the tire pressure, the tire temperature, the condition of the tire or the age of the tire, and by transmitting the tire information to a device of a vehicle dynamics control, where it is taken into account by the latter for the regulation.

Abstract: System comprising (1) at least one rolling assembly formed by a rim, a tire and a tire tread support ring, designed to support the tire's load in the event of a substantial pressure loss; and (2) an electronic device for controlling the dynamic behavior of a vehicle equipped with the rolling assembly, wherein the ratio l/L between the respective axial widths l of the support ring and L of the tire tread is smaller than or equal to 0.30.