Abstract: A transmitter is coupled to each of a plurality of wheel assemblies included in a vehicle. The transmitter is configured to function in one of a plurality of formats that are selectable by a command from a trigger device. The transmitter includes a pressure sensor configured to detect the tire pressure, a memory that stores an ID code, a transmission unit configured to transmit a signal, a controller configured to control the transmitter, and a trigger reception unit configured to receive a trigger signal including the command from the trigger device. The controller is configured so that when the trigger reception unit receives a trigger signal including a command designating a format of the transmitter, the controller has the transmitter function in the designated format and has the transmission unit transmit the signal including the ID code to register the ID code to an in-vehicle receiver.

Abstract: A power generator includes: a stator fixed to a wheel; and a rotor disposed coaxially with the wheel and rotatably supported by the stator. The power generator generates electric power by relative rotation between the stator and the rotor, and supplies the electric power to an electric device attached to the wheel. The power generator further includes: a blade portion fixed to the rotor; a container portion that is fixed to one of the rotor and the stator and houses the blade portion; and liquid which is contained in the container portion in an amount smaller than a volume of the container portion and in which at least a part of the blade portion is immersed.

Abstract: A power supply device includes: a generator including a stator which rotates with a tire wheel, and a rotor which rotates around a rotation axis of the tire wheel; an inertial component fixed to the rotor and configured to maintain a consistent attitude by an own weight of the inertial component; a circuit board fixed to the tire wheel and arranged such that a plate thickness direction is oriented parallel to the rotation axis; a rectifier circuit mounted on the circuit board and rectifies a current output from the generator to supply the current to a load; a plurality of smoothing capacitors provided in the rectifier circuit and positioned on a common imaginary circle around the rotation axis so that the plurality of smoothing capacitors as a whole has a center of gravity located in a central area of rotation.

Abstract: The transmitter is arranged in a tire attached to a wheel and configured to transmit data to a receiver. The transmitter includes an obtaining section configured to obtain a detection result of the sensor, a generating section configured to generate the data including the detection result of the sensor, a transmitting section configured to transmit the data generated by the generating section, and an organic power generation element that is a power source of the transmitter. The organic power generation element is configured to generate power through a chemical reaction with organic matter contained in a fuel solution accommodated in the tire.

Abstract: A bracket that is pressed against and fixed to an outer peripheral surface of a rim of a tire wheel by a belt wound around the outer peripheral surface of the rim, and detachably holds an electric circuit unit includes: a pair of rim contact portions that are provided at both ends in a circumferential direction of the rim in a rim facing surface facing the outer peripheral surface of the rim, and come into contact with the outer peripheral surface of the rim in such a way as to cause a portion between the both ends to be spaced apart from the outer peripheral surface of the rim.

Abstract: A transmitter is configured to be attached to each of wheel assemblies provided in a vehicle and execute a process in accordance with a command included in a trigger signal transmitted from a trigger device. The transmitter includes a battery, a condition detecting section, which detects a condition of the transmitter, a trigger receiving section, which receives, as the trigger signal, an unmodulated wave having a received signal strength indication greater than or equal to a predetermined received signal strength indication, a transmitting section, which transmits a signal, a controlling section, which performs response transmission, by which the signal is transmitted to the transmitting section in response to the unmodulated wave, when the trigger receiving section receives the unmodulated wave, and a memory section, which stores at least one of reception time of the unmodulated wave and a number of times of the response transmission.

Abstract: A vehicle running control system includes: a steering apparatus that includes a turning device being mechanically separated from a steering wheel; a vehicle drive unit; and a control device. The control device is configured to execute: a turning processing that controls the turning device such that an actual turning angle of the wheel approaches a target turning angle; a vehicle driving processing that determines a target vehicle driving force according to a required vehicle driving force based on a vehicle driving request and that controls the vehicle drive unit so as to cause an actual vehicle driving force to the target vehicle driving force determined; and where a turning angle difference is greater than a turning angle threshold value in a low vehicle speed condition, a driving force limiting processing that limits the target vehicle driving force so as to become smaller than the required vehicle driving force.

Abstract: A transmitter arranged in a tire includes a transmitting section, which has a terminal, and a pressure switch. The pressure switch includes a hollow box and a passage that causes an interior of the box and an interior of the tire to communicate with each other. The box includes a conductive deforming portion, which is separate from the terminal when the difference between the pressure in the box and the pressure in the tire is less than a predetermined value and is elastically deformed to contact the terminal when the pressure in the box is higher than the pressure in the tire at least by the predetermined value. The transmitting section transmits a warning signal that causes a tire pressure warning device to issue a warning in response to contact between the deforming portion and the terminal.

Abstract: A flow control valve in which a needle-shaped valve element is fitted into a valve hole provided in a partition wall partitioning a flow path at an intermediate portion, and the valve element moves in an axial direction of the valve element to control a flow rate of a fluid passing between an outer side surface of the valve element and an inner side surface of the valve hole, the flow control valve includes: a tapered inner side surface that is included in the inner side surface of the valve hole; and a tapered outer side surface that is included in the outer side surface of the valve element, faces the tapered inner side surface from inside, and is inclined along the tapered inner side surface.

Abstract: A dividing wall mounting device includes: a main device body extending along a central axis of a through-hole; and a flexible flange protruding laterally from an intermediate position of the main device body, and when the dividing wall mounting device is inserted into the through-hole from one end side in the axial direction, the flexible flange passing through the through-hole in a first state of collapsing towards another end side in the axial direction to narrow due to contact with an opening edge of the through-hole, and when the dividing wall mounting device is pulled back in a direction opposite to the insertion, the flexible flange being press-fitted into the through-hole in a second state of collapsing towards the one end side in the axial direction to narrow due to contact with the opening edge and having an outer diameter larger than an outer diameter in the first state.

Abstract: 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.

Abstract: A transmitter is configured to be attached to each of wheel assemblies in a vehicle and execute a process in accordance with a command included in a trigger signal. The transmitter includes a condition detecting section, a trigger receiving section which receives, as the trigger signal, an unmodulated wave having a received signal strength indication a transmitting section, and a controlling section. When the trigger receiving section receives the unmodulated wave, the controlling section causes the transmitting section to transmit the signal in response to the unmodulated wave. The controlling section is configured to execute an accumulation process to accumulate reception time of the unmodulated wave from a starting point in time, and shift into a restriction state to restrict a response to the unmodulated wave when the accumulated reception time reaches a predetermined time.

Abstract: The transmitter is arranged in a tire attached to a wheel and configured to transmit data to a receiver. The transmitter includes an obtaining section configured to obtain a detection result of the sensor, a generating section configured to generate the data including the detection result of the sensor, a transmitting section configured to transmit the data generated by the generating section, and an organic power generation element that is a power source of the transmitter. The organic power generation element is configured to generate power through a chemical reaction with organic matter contained in a fuel solution accommodated in the tire.

Abstract: A valve stem includes: a pair of internal electrodes connected to an internal circuit; a pair of external electrodes connectable to an external circuit; first and second conductive members having the internal electrodes and the external electrodes and insulated from each other; a conductive stem main body forming the first conductive member; a core fitting portion; and an inner sleeve fitted in the stem main body. The inner sleeve includes a conductive inner sleeve main body forming the second conductive member, and an insulating layer covering an outer side surface of the inner sleeve main body to insulate between the inner sleeve main body and the stem main body. The stem main body has a side surface through-hole laterally penetrating the stem main body and closed with an end portion of the inner sleeve, the side surface through-hole providing the external electrode of the second conductive member.

Abstract: An air supply system includes: a telescopic pump attached to a wheel and discharging compressed air into a tire by extending and contracting; a cam member rotatably supported on the wheel and having a center of gravity eccentric to the wheel and an annular cam surface eccentric to the wheel, wherein the cam member rotating relative to the wheel as the wheel rotates, with one end part of the pump following the cam surface, causing the pump to extend and contract to supply air into the tire by a rotary power of the wheel; and a pump on/off mechanism that is activated upon receiving a pressure inside the tire, allowing the pump to operate when the pressure is at or below a reference lower limit, and stopping the pump when the pressure is at or above a reference upper limit that is larger than the reference lower limit.

Abstract: A slave terminal includes: a data transmission unit that wirelessly transmits status data relating to a condition of a monitoring target to a monitoring apparatus in response to a transmission trigger at every fixed period; a reply check unit that determines whether or not an ACK signal was sent back from the monitoring apparatus in response to the status data that was transmitted; an adjustment value calculation unit that determines an adjustment period of a random length when there was no reply; a timing update unit that outputs a measurement start trigger after the adjustment period has elapsed when there was no reply, the timing update unit outputting the measurement start trigger without the adjustment period when there was a reply; and a trigger generation unit that outputs the transmission trigger after counting the fixed period in response to the measurement start trigger.

Abstract: A wireless terminal includes a pressure sensor, a wireless circuit, and a case accommodating the pressure sensor and the wireless circuit in a waterproof manner, and is left inside a stomach of a livestock animal to measure pressure inside the stomach and wirelessly transmit acquired pressure data. The case includes a cylindrical case body and a lid member closing an opening of the case body. The lid member has a measurement hole extending between inside and outside of the lid member and a protection wall part located outside of the case body. The measurement hole has a pressure-receiving pressure measurement part inside for measurement of the pressure and is closed. The measurement hole includes a first linear part and a second linear part intersecting in T shape with the first linear part, and has distal ends open to an outer face of the protection wall part.

Abstract: A power feeding device includes: a generator, the generator including a stator fixed to a wheel and a cylindrical rotor that rotates around a rotation axis of the wheel; an inertial member that is fixed to the cylindrical rotor and maintains a constant attitude by its own weight; a circuit board that is fixed to the stator and is mounted with a power feeding circuit to supply an output of the generator to a load; and a circuit receiving space that is provided inside the cylindrical rotor and receives a whole of the circuit board or an element that is mounted on the circuit board and protrudes from the circuit board.