Tire assembly and tire deformation state determination system

A tire deformation state determination system comprising:

• the tire assembly, and
• a determination device configured to determine a deformation state of the sidewall of the tire based on a detection signal output from the magnetic sensor,
• the tire assembly comprising:
• a tire;
• and
• a measurement unit provided with a magnetic generator and a magnetic sensor configured to acquire the deformation state of the sidewall, the magnetic generator being provided in a first region that is any one of a contact-patch-corresponding region and bead-portion-corresponding regions that are on an inner surface of the tire, the contact-patch-corresponding region corresponding to a contact patch of a tread portion of the tire and the bead-portion-corresponding regions corresponding to bead portions of the tire, the magnetic sensor being provided in a second region that is one of the contact-patch-corresponding region and the bead-portion-corresponding regions and other than the first region, where the magnetic sensor detects a distance of separation from the magnetic generator based on a magnetic field generated by the magnetic generator,
• the magnetic sensor comprising a plurality of magnetic sensors, the plurality of magnetic sensors comprising first and second magnetic sensors disposed in the bead-portion-corresponding regions on both sides in a tire lateral direction or the first and second magnetic sensors disposed in a same bead-portion-corresponding region at positions different from each other in a tire circumferential direction, and
• the magnetic sensor disposed on each of the two porisitions being configured to detect distances of separation from the magnetic generator, based on a common magnetic field generated by the magnetic generator.

A tire assembly that comprises a magnetic sensor configured to acquire a deformation state of a sidewall of a tire, the tire assembly comprising;

• a tire;
• and
• a measurement unit provided with a magnetic generator and a group of magnetic sensors configured to acquire the deformation state of the sidewall, the magnetic generator being provided in a contact-patch-corresponding region that is on an inner surface of the tire and corresponds to a contact patch of a tread portion of the tire, the group of magnetic sensors being provided in bead-portion-corresponding regions that are on the inner surface of the tire and correspond to bead portions of the tire, where the group of magnetic sensors detects a distance of separation from the magnetic generator based on a magnetic field generated by the magnetic generator,
• the group of magnetic sensors comprising at least a first magnetic sensor, a second magnetic sensor, and a third magnetic sensor, the first magnetic sensor and the second magnetic sensor being provided in one of the bead-portion-corresponding regions on one side in a tire lateral direction, the third magnetic sensor being provided in one of the bead-portion-corresponding regions on an other side in the tire lateral direction,
• the first magnetic sensor and the second magnetic sensor being provided on different sides in a tire circumferential direction with respect to a position of the magnetic generator in the circumferential direction, and
• the first magnetic sensor, the second magnetic sensor and the third magnetic sensor detecting distances of separation from the first magnetic generator, based on a common magnetic field generated by the first magnetic generator.