The invention relates generally to tire monitoring systems for collecting measured tire parameter data during vehicle operation and, more particularly, to a system and method for estimating tire wear state and inflation pressure based upon such measurements.

A tire pressure monitoring sensor includes a housing, a pressure sensor core, a PCB with a processing circuit, a battery, a transmitting antenna and a metallic cover plate. The pressure sensor core includes a tube socket, a silicon piezoresistive element, a sensor shell, a seal, a ceramic body, a pressure sensing and transferring medium, an output terminal, a metallic sensing diaphragm and a protective shield. The metallic sensing diaphragm is subjected to a pressure, which is delivered to through said pressure sensing and transferring medium, and finally a pressure signal is output by said output terminal. The tire pressure monitoring sensor meets the requirements for application in an engineering vehicle or a special vehicle, and is suitable for use in an environment in the presence of liquid.

The invention comprises a tire pressure monitoring system. One system comprises a tire pressure monitor that signals to a user with audio alarm and visual alarm. Another component is the use of a tire air pressure balancing device with a safety trigger to ensure that dual tire systems share air but that stop sharing air in the case of rapid air pressure drop as in cases of tire blow out.

The present disclosure includes a combination sensor and pressure relief valve. The combination sensor and valve may be used with existing aircraft wheel systems. Wheel systems utilizing the combination sensor and valve are also disclosed.

A pressure detector includes: a case provided with a hole portion; support pillar members standing on the bottom surface of the case and each including a tapered portion at an end of each of the support pillar members; a circuit board including a sensor having a detection aperture, and mounting holes into which the respective tapered portions are insertable; and a packing provided with a through hole. The case and the circuit board are fixed by a cured resin while the hole portion is connected to the detection aperture via the through hole by inserting the tapered portion of each of the support pillar members into the mounting hole of the circuit board and by sandwiching the packing between the bottom surface of the case and the sensor.

A rim for a bicycle wheel includes a radially inner portion disposed along an inner circumference of the rim, a first sidewall, and a second sidewall spaced apart from the first sidewall. The first sidewall and the second sidewall extend radially outward from the radially inner portion. The rim also includes a radially outer tire engaging portion disposed along an outer circumference of the rim. The radially outer tire engaging portion extends from the first sidewall and the second sidewall, respectively. The rim also includes an opening through the radially inner portion at a first circumferential position along the inner circumference. An air valve of the bicycle wheel is positionable through the opening. The rim also includes a receptacle for a sensor device within the radially inner portion at a second circumferential position along the inner circumference. The second circumferential position is different than the first circumferential position.

A module (25) for measuring at least one parameter of a tire of a wheel of a motor vehicle, the wheel having a wheel rim (1). The measurement module (25) includes an inflation valve (30) designed to be assembled on the wheel rim (1) and including a deformable body (32) and a hollow rod (31) passing through the body (32) including an assembly notch (36) and a sensor device (40), mounted slidingly on the hollow rod (31), including at least one sensor for measuring the value of the parameter and an element (42) for immobilizing the sensor device (40) in the assembly notch (36). The assembly notch (36) has a setting range enabling the movement of the immobilizing element (42) in the assembly notch (36) between a first setting position and a second setting position to adapt to the thickness of the wheel rim (1).

A method for evaluating thermal stresses associated with use of a tire mounted on a rim includes steps of measuring a temperature of a gaseous fluid contained in an internal cavity of the tire at regular time intervals in order to obtain a fluid temperature, measuring a temperature at a location on the rim at regular time intervals in order to obtain a rim temperature, and determining an estimated temperature at at least one internal zone of materials of which the tire is made using a pre-established law connecting the estimated temperature to the fluid temperature and the rim temperature.

A tire pressure monitoring sensor includes a housing, a pressure sensor core, a PCB with a processing circuit, a battery, a transmitting antenna and a metallic cover plate. The pressure sensor core includes a tube socket, a silicon piezoresistive element, a sensor shell, a seal, a ceramic body, a pressure sensing and transferring medium, an output terminal, a metallic sensing diaphragm and a protective shield. The metallic sensing diaphragm is subjected to a pressure, which is delivered to through said pressure sensing and transferring medium, and finally a pressure signal is output by said output terminal. The tire pressure monitoring sensor meets the requirements for application in an engineering vehicle or a special vehicle, and is suitable for use in an environment in the presence of liquid.

A tire pressure sensor is provided. The tire pressure sensor comprises a sensor housing having a first engagement portion defining an opening. A pressure sensing element is within the sensor housing and is in fluid communication with the opening of the sensor housing. The tire pressure sensor is configured to engage and be in fluid communication with an over-inflation pressure relief valve. The over-inflation relief valve is engagable in a wheel of an aircraft wheel assembly. The tire pressure sensor is also disengageable from the over-inflation pressure relief valve. A tire pressure sensor assembly and an aircraft wheel system are also provided.