Abstract: A method for producing a tire for a motor vehicle includes estimating a laden radius Rl of the tire using a formula having a form of: R l = R 0 - Fz Kzz + R V × V 2 - ( R Y ? ? 1 Pg + R Y ? ? 2 ) × ? Fy ? + R ? × ? ? ? , where KZZ has a form of: KZZ=KZZ 0+KZZp×Pg.

Abstract: A device for measuring the temperature of water covering a road surface includes a member for measuring water temperature and channelling means for channelling the water covering the road surface. The channelling means includes a measuring chamber for measuring the temperature of the water covering the road surface. The measuring member includes a temperature measuring head situated in the measuring chamber. The device also includes driving means for driving the device over the road surface, the means being arranged in such a way that the temperature measuring head is situated at some distance from the road surface.

Abstract: A method is provided for modelling a tire in running conditions at a defined speed. During running, the tire is subjected to a downward vehicle load (Fz) representing a vehicle and to a transverse thrust stress (Fy), and the tire is inclined with respect to a vertical direction by a camber angle (?). The method includes modelling an overturning moment (Mx) exerted on the tire, in which the overturning moment (Mx) is a sum of at least: a moment (Mx1) produced by an offset of the vehicle load (Fz) by the camber angle (?); a moment (Mx2) produced by the transverse thrust stress (Fy); a moment (Mx3) produced by a ground reaction (FR) under the vehicle load (Fz), with the ground reaction (FR) being decentred from a reference point (C) of the tire by the transverse thrust stress (Fy).

Abstract: The invention relates to a method for producing a motor vehicle tire, comprising a step of estimating a laden radius Rl of the tire by using a formula of the form: R l = R 0 - Fz Kzz + R V × V 2 - ( R Y ? ? 1 Pg + R Y ? ? 2 ) × ? Fy ? + R ? × ? ? ? , where KZZ is written in the form KZZ=KZZ0+KZZp×Pg.

Abstract: The invention relates to a method for producing a motor vehicle tire, comprising a step of estimating the effective rolling radius Rroll of the tire by using a formula of the form in which: ? Rroll 1 = Rroll 11 - [ ( ? 11 + ? 12 * deflect Pg ) ] * ( 1 - exp ? ( - deflect Pg * Rroll 16 ) ) Rroll 2 = ( Rroll 21 + Rroll 22 * sign ? ( ? ) * V ) * 1 Fz Rroll 23 * ( 1 - cos ? ( ? ? ? ) ) - Rroll 24 ? ? ? … and: Rroll3=(?31+?32*sign(?*?))*(1?cos(|?|))

Abstract: A device for measuring the temperature of water covering a road surface includes a member for measuring water temperature and channelling means for channelling the water covering the road surface. The channelling means includes a measuring chamber for measuring the temperature of the water covering the road surface. The measuring member includes a temperature measuring head situated in the measuring chamber. The device also includes driving means for driving the device over the road surface, the means being arranged in such a way that the temperature measuring head is situated at some distance from the road surface.

Abstract: A device for measuring the temperature of water covering a road surface includes a member for measuring water temperature and channelling means for channelling the water covering the road surface. The channelling means includes a measuring chamber for measuring the temperature of the water covering the road surface. The measuring member includes a temperature measuring head situated in the measuring chamber. The device also includes driving means for driving the device over the road surface, the means being arranged in such a way that the temperature measuring head is situated at some distance from the road surface.

Abstract: The invention relates to a method for assisting in the driving of a vehicle during a braking test on said vehicle on a track, said track being divided into a plurality of adjacent strips (Z1, . . . , Zn) mainly extending lengthwise in the track, the width (Iz) of each strip being greater than or equal to the width of the tires of the vehicle, each strip being worn on each braking of the vehicle on said strip. The assistance method comprises a step of selecting at least one strip out of the plurality of strips of the track, said strip being selected according to its level of wear. The assistance method also comprises a step of determining a theoretical trajectory of the vehicle, such that, by following said theoretical trajectory, the vehicle is able to brake on the selected strip.

Abstract: The invention relates to a method for assisting in the driving of a vehicle during a braking test on said vehicle on a track, said track being divided into a plurality of adjacent strips (Z1, . . . , Zn) mainly extending lengthwise in the track, the width (Iz) of each strip being greater than or equal to the width of the tyres of the vehicle, each strip being worn on each braking of the vehicle on said strip. The assistance method comprises a step of selecting at least one strip out of the plurality of strips of the track, said strip being selected according to its level of wear. The assistance method also comprises a step of determining a theoretical trajectory of the vehicle, such that, by following said theoretical trajectory, the vehicle is able to brake on the selected strip.

Abstract: A device for measuring the temperature of water covering a road surface includes a member for measuring water temperature and channelling means for channelling the water covering the road surface. The channelling means includes a measuring chamber for measuring the temperature of the water covering the road surface. The measuring member includes a temperature measuring head situated in the measuring chamber. The device also includes driving means for driving the device over the road surface, the means being arranged in such a way that the temperature measuring head is situated at some distance from the road surface.

Abstract: A method for estimating the performance, during a braking situation, of a tire to be provided to a vehicle, this method comprising an experimental phase (EXPERIM) including a step (EVAL_MU) of assessing the grip coefficient (?) of the tire on the ground. This assessment step is performed for different values (Vi) of the relative displacement speed of the tire axis with regard to the ground and for different values (gi %) of the tire slip rate on the ground. The experimental phase (EXPERIM) further comprises a modelization step (MODEL) of representing the grip coefficient of this tire, as resulting from the assessment step (EVAL_MU), by a function (MU3D) of the relative displacement speed of the tire axis with regard to the ground and of the slip rate of this tire on the ground.

Abstract: A method for estimating the performance, during a braking situation, of a tire to be provided to a vehicle, this method comprising an experimental phase (EXPERIM) including a step (EVAL_MU) of assessing the grip coefficient (?) of the tire on the ground. This assessment step is performed for different values (Vi) of the relative displacement speed of the tire axis with regard to the ground and for different values (gi%) of the tire slip rate on the ground. The experimental phase (EXPERIM) further comprises a modelization step (MODEL) of representing the grip coefficient of this tire, as resulting from the assessment step (EVAL_MU), by a function (MU3D) of the relative displacement speed of the tire axis with regard to the ground and of the slip rate of this tire on the ground.