A tire assembly includes a tire and a shape measurement unit utilizing magnetism. The shape measurement unit is provided with one device of a magnetic generator or a magnetic sensor configured to detect a distance of separation from the magnetic generator based on a magnetic field generated by the magnetic generator to acquire a deformation state of a sidewall, in a first region that is any one of a tread-portion-corresponding region and bead-portion-corresponding regions that are on an inner surface of the tire, the tread-portion-corresponding region corresponding to a tread portion and the bead-portion-corresponding regions corresponding to bead portions, and is provided with another of the magnetic generator or the magnetic sensor in a second region.

A tire sensing system of kinetic parameters is provided, including: at least one wave-emitting source configured to rotate with a tire, and emit at least one detection wave towards an internal surface of said tire; at least one wave sensor configured to rotate with said at least one wave-emitting source, and output a measurement signal according to a physical parameter of said at least one detection wave being reflected off said internal surface; and a processing unit configured to receive said measurement signal, record at least two instants in time during which said at least one detection wave sweeps across the footprint of said tire, and compute a kinetic parameter of said tire with said at least two instants.

A tire sensing system of kinetic parameters is provided, including: at least one wave-emitting source configured to rotate with a tire, and emit at least one detection wave towards an internal surface of said tire; at least one wave sensor configured to rotate with said at least one wave-emitting source, and output a measurement signal according to a physical parameter of said at least one detection wave being reflected off said internal surface; and a processing unit configured to receive said measurement signal, record at least two instants in time during which said at least one detection wave sweeps across the footprint of said tire, and compute a kinetic parameter of said tire with said at least two instants.

A tire deformation sensing and tire inflation system for tires that makes use of ultrasonic sensors embedded in the bead lock of the tire to measure time intervals between transmitted ultrasonic signals and the echo received signals to and uses the information obtained to adjust the tire pressure through a central tire inflation system.

A tire deformation sensing and tire inflation system for a steel belted tires which makes use of magnetic coils embedded in the wheel assembly to detect the position of the tire's steel belting and uses the information obtained to adjust the tire pressure through a central tire inflation system.

A sensor apparatus for measuring a property of a wheel assembly is disclosed including at least one sensor configured to acquire measurement data; and a mounting member attached to the at least one sensor. The mounting member is configured to engage with a wheel such as to retain the sensor on the wheel within an enclosed space formed by the wheel and a tire mounted on the wheel. The mounting member is further configured to enable the sensor to move around the circumference of the wheel when the mounting member is engaged with the wheel.

A system is provided, the system including a tire disposed on a rim of a wheel, and an array of light-based sensors disposed circumferentially about the rim, where each light-based sensor of the array of light-based sensors directed toward the tire. The system includes a computing device which can receive one or more distance readings from the array of light-based sensors, generate a parabola approximating a contact area of the tire based at least in part on the one or more distance readings, approximate a shape of the contact area based at least in part on the parabola, and determine a static load estimation based at least in part on the shape of the contact area.