A connector to connect electric circuits inside and outside the tire includes: a tubular terminal penetrating the connector attachment hole; an outer seal member surrounding outside the tubular terminal and elastically deformed by being pressed against a tire wheel to provide a seal between the tire wheel and the tubular terminal; an inner seal member filled inside the tubular terminal; one or more rod-shaped terminals penetrating the inner seal member; a plurality of communication holes formed at a plurality of positions in a circumferential direction in an intermediate portion in an axial direction of the tubular terminal; and a plurality of seal communication portions integrally formed with one or both of the outer seal member and the inner seal member and arranged in the plurality of communication holes to transmit, to the inner seal member, elastic force toward the tubular terminal by the elastic deformation of the outer seal member.

A connector to connect electric circuits inside and outside the tire includes: a tubular terminal penetrating the connector attachment hole; an outer seal member surrounding outside the tubular terminal and elastically deformed by being pressed against a tire wheel to provide a seal between the tire wheel and the tubular terminal; an inner seal member filled inside the tubular terminal; one or more rod-shaped terminals penetrating the inner seal member; a plurality of communication holes formed at a plurality of positions in a circumferential direction in an intermediate portion in an axial direction of the tubular terminal; and a plurality of seal communication portions integrally formed with one or both of the outer seal member and the inner seal member and arranged in the plurality of communication holes to transmit, to the inner seal member, elastic force toward the tubular terminal by the elastic deformation of the outer seal member.

A portable tire pressure monitoring system (TPMS) tool includes a tire sensor trigger device ensuring the TPMS tool is in close proximity to a TPMS tire sensor to trigger or awaken the sensor to emit measured tire data. In one example, a manually displaceable trigger signal contact device in the form of a push button is used. On manual displacement of the push button against the tire, the tool generates the tire sensor trigger signal. In another example, the tool includes a first power source in the form of a high density capacitor. In another example, a second power source in the form of a lithium button-type battery is used to selectively provide power or recharge the first power source between function cycles.

A tire pressure regulating system and method are provided. The system includes a manifold that provides a fluid flow path between a pressure switch and a valve. The valve can switch between an open state and a closed state. Air bleeds from the tire when the valve is in the open state. The pressure switch signals the valve to open and close according to the pressure inside the manifold that is supplied from air pressure inside the tire.

A portable tire pressure monitoring system (TPMS) tool includes a tire sensor trigger device ensuring the TPMS tool is in close proximity to a TPMS tire sensor to trigger or awaken the sensor to emit measured tire data. In one example, a manually displaceable trigger signal contact device in the form of a push button is used. On manual displacement of the push button against the tire, the tool generates the tire sensor trigger signal. In another example, the tool includes a first power source in the form of a high density capacitor. In another example, a second power source in the form of a lithium button-type battery is used to selectively provide power or recharge the first power source between function cycles.

A tire assembly includes a tire for mounting on a vehicle, an elastic body disposed on an inner side of the tire, and a power generation body disposed between an inner surface of the tire and the elastic body. The power generation body includes a first member and a second member. The first member has a first insulating film forming a first surface. The second member has a second insulating film forming a second surface that faces the first surface and contacts the first surface. The elastic body biases the power generation body toward the inner surface of the tire.

A tire assembly includes a tire for mounting on a vehicle, an elastic body disposed on an inner side of the tire, and a power generation body disposed between an inner surface of the tire and the elastic body. The power generation body includes a first member and a second member. The first member has a first insulating film forming a first surface. The second member has a second insulating film forming a second surface that faces the first surface and contacts the first surface. The elastic body biases the power generation body toward the inner surface of the tire.

The present invention is directed to a wheel sensor system for a vehicle, comprising wheel sensor assemblies; a connector electrically connectable to a vehicle diagnostics system so as to be powered by the vehicle diagnostics system; and at least one electromagnetic energy transmitter for wirelessly transmitting electromagnetic energy received via the connector to each wheel sensor assembly. Each wheel sensor assembly comprises at least one sensor for measuring a property of a vehicle wheel; a sensor assembly antenna for wirelessly receiving the electromagnetic energy transmitted by the electromagnetic energy transmitter; and a converter for converting the electromagnetic energy received by the sensor assembly antenna into an electrical current for powering one or more components of the sensor assembly. Furthermore, the invention is directed to a vehicle comprising the wheel sensor system.