Device for evaluating the deformation of a pneumatic tire casing

1. A device for evaluating the deformation of a tire casing comprising:

the tire casing having a rotation axis, including a crown and two sidewalls ending with two grip zones, and having a radial stiffness k radial and a footprint of the tire casing having a dimension L adc in the axial direction when the tire casing is included in a mounted assembly in a nominal condition of use; and

an electronic device comprising at least one bending sensor,

wherein the at least one bending sensor includes an active part having a main dimension of between 10% and 80% of the dimension L adc ,

wherein the active part of the at least one bending sensor is located in line with the crown,

wherein a main dimension of the active part is oriented in a circumferential direction of the tire casing, and

wherein the at least one bending sensor has a bending stiffness that is lower than the radial stiffness k radial of the tire casing.

2. The device according to claim 1 , wherein the at least one bending sensor is sensitive to bending of between 0 and 60 degrees.

3. The device according to claim 1 , wherein the footprint of the tire casing included in the mounted assembly under nominal conditions of use has a dimension l adc in the transverse direction, and the electronic device has a measurement zone which extends transversally over a distance of between 10% and 80% of the dimension l adc .

4. The device according to claim 1 , wherein the active part of the at least one bending sensor is on a surface shape, and the surface shape is selected from the group consisting of square, rectangular, parallelogram, oblong, circular, oval and elliptical.

5. The device according to claim 1 , wherein the active part of the at least one bending sensor is located in line with a zone of the crown of the radial stiffness material homogenous tire casing.

6. The device according to claim 1 , wherein the active part of the at least one bending sensor is located in line with a sculpture element of a tread of the crown of the tire casing.

7. The device according to claim 1 , wherein the active part of the at least one bending sensor is centered transversally with respect to the crown of the tire casing.

8. The device according to claim 1 , wherein at least part of the electronic device is located radially inwardly with respect to the crown of the tire casing.

9. The device according to claim 1 , wherein the active part of the at least one bending sensor has an external surface connected to a radially interior surface of the crown of the tire casing.

10. The device according to claim 1 , wherein the at least one bending sensor is a passive and resistive sensor.

11. The device according to claim 1 , wherein the at least one bending sensor is an active and piezoelectric sensor.

12. The device according to claim 1 , wherein the electronic device includes at least one sensor, for measuring parameters of the mounted assembly, selected from the group consisting of a temperature sensor, a pressure sensor and an accelerometer.

13. The device according to claim 1 , wherein the electronic device includes at least one radiofrequency transmitting device.

14. The device according to claim 1 , wherein the electronic device includes at least one radiofrequency receiving device.