A dual wheel tyre inflation pressure control system including a pair of vehicle wheels having tyre interiors providing first and second fluid chambers. A first valve arrangement is installed remote from the wheels and is connectable to a pressurised fluid source. A second valve arrangement, suitably mounted on one of the wheels, is connected to the first valve arrangement by means of first and second fluid connections. The second valve arrangement is controllably operable to connect the first fluid connection to either fluid chamber. Controlled variation of fluid pressure in and between the fluid connections is provided by the first valve arrangement to control said second valve arrangement for operating the tyre pressure control system to connect the second fluid chamber to the first valve arrangement, and to connect the first and second fluid chambers.

A pressure measuring device for a bicycle has a housing that includes a pressure chamber. The pressure chamber has a valve disposed in a first opening and a second opening into or out of a tire assembly volume of a tire assembly. A sense element is in pressure communication with the pressure chamber along a flow path between the first and second openings.

A tire pressure monitor includes a printed circuit board (PCB) and a sealed pressure chamber mounted to the PCB. The tire pressure monitor also includes a piston mounted adjacent to the sealed pressure chamber. The piston is configured to contact the sealed pressure chamber in response to an applied pressure. The tire pressure monitor also includes a liquid within the sealed pressure chamber. Translation of the piston causes the liquid to apply pressure to a pressure sensor. The pressure sensor is mounted within the sealed pressure chamber, and is configured to detect the applied pressure.

A sensing assembly for detecting a temperature of a tire of a vehicle comprises a fender, one or more cavities, and at least one contactless temperature sensor. The fender comprises an outer surface and an inner surface. The inner surface of the fender defines the one or more cavities. The contactless temperature sensor is seated within each of the one or more cavities. Further, the contactless temperature sensor is configured to detect the temperature of the tire of the vehicle.

A pressure measuring device for a bicycle has a housing that includes a pressure chamber. The pressure chamber has a valve disposed in a first opening and a second opening into or out of a tire assembly volume of a tire assembly. A sense element is in pressure communication with the pressure chamber along a flow path between the first and second openings.

An apparatus for measuring the pressure of a two-wheeler tire comprises: an adapter component which comprises a joining mechanism to connect the apparatus to a valve of the two-wheeler tire; a valve opener to open the valve so that in a state connected to the valve pressurized air flows from the two-wheeler tire through the valve into the until the which can be connected to the adapter component; and a sensor component which can be connected to the adapter component. The sensor component comprises a pressure measurement device to measure the pressure in the apparatus and a transmitter to wirelessly transmit information corresponding to the measured pressure.

A device for measuring the liquid level inside a tire that includes a stem of a tire pressure valve that includes a first electrode, a second electrode, and an isolated part between the electrodes, a power source, and an electric circuit. The stem is fixed to the rim of the tire in a way that the electrodes' upper parts protrude outside the rim and the electrodes' lower parts protrude inside the rim. The lower parts are immersed inside the liquid inside the tire when the tire pressure valve faces the ground. The electrodes' upper parts are connected to the power source and to the electric circuit that measures an electric property of the liquid between the lower parts of the electrodes, and the intensity of this property represents the liquid level and can be used for calculation this level.

A sensing assembly for detecting a temperature of a tire of a vehicle comprises a fender, one or more cavities, and at least one contactless temperature sensor. The fender comprises an outer surface and an inner surface. The inner surface of the fender defines the one or more cavities. The contactless temperature sensor is seated within each of the one or more cavities. Further, the contactless temperature sensor is configured to detect the temperature of the tire of the vehicle.

Disclosed is a method for detecting an inclination, relative to the ground, of a wheel of a motor vehicle which includes: measuring two accelerations by using two accelerometers mounted on the wheel and suitable for measuring the acceleration of the wheel along a first axis and along a second axis, respectively, the first axis and the second axis being in the plane of the wheel and orthogonal, and calculating the components of a gravity vector in a reference frame formed by the first axis and the second axis from the measurements of acceleration, determining a modulus of the gravity vector from the calculated components, and determining a position of inclination of the wheel relative to the ground by comparing the value of the modulus of the gravity vector with a predetermined value.

An apparatus for measuring the pressure of a two-wheeler tire comprises: an adapter component which comprises a joining mechanism to connect the apparatus to a valve of the two-wheeler tire; a valve opener to open the valve so that in a state connected to the valve pressurized air flows from the two-wheeler tire through the valve into the until the which can be connected to the adapter component; and a sensor component which can be connected to the adapter component. The sensor component comprises a pressure measurement device to measure the pressure in the apparatus and a transmitter to wirelessly transmit information corresponding to the measured pressure.