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公开(公告)号:US20220305852A1
公开(公告)日:2022-09-29
申请号:US16340951
申请日:2017-12-05
发明人: Yasuhisa TSUJITA
摘要: 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. The transmitter includes a battery, which serves as a power source for the transmitter, a condition detecting section, which is configured to detect a condition of a tire, a trigger receiving section, which is configured to receive, 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 is configured to transmit a signal, and a controlling section, which is configured such that, 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.
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公开(公告)号:US20190070908A1
公开(公告)日:2019-03-07
申请号:US15765441
申请日:2017-04-27
发明人: Yasuhisa TSUJITA
摘要: Each of transmitters attached to respective wheel assemblies transmits transmission data when the wheel assembly reaches any of specific angles set at equal angular intervals. A receiver mounted in the vehicle obtains the rotation angles of the wheel assemblies from a rotation angle detecting section upon reception of the transmission data and obtains specific rotation angles by correcting the obtained rotation angles by using the value of the angle difference between the specific angles. The specific rotation angles are values that can be regarded as rotation angles that are obtained upon reception of the transmission data transmitted at the same specific angle. The receiver identifies the correspondence between ID codes included in the transmission data and the wheel assemblies by using the specific rotation angles.
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公开(公告)号:US20170155977A1
公开(公告)日:2017-06-01
申请号:US15025304
申请日:2015-06-26
发明人: Yasuhisa TSUJITA
CPC分类号: H04Q9/00 , B60C23/0416 , B60C23/0483 , B60C23/0486 , H04Q2209/40 , H04Q2209/88
摘要: A wheel assembly position identifying apparatus includes transmitters, each of which is provided in one of wheel assemblies, and a receiver, which is provided in a body of a vehicle. Each transmitter includes a transmission section, an acceleration sensor, and a transmission-side control section. The receiver includes a reception section, which is configured to receive the signals, and a reception-side control section, which is configured to execute a first identifying process and a second identifying process. In the first identifying process, the positions of the wheel assemblies, in which the corresponding transmitters are provided, are identified based on variations of the rotational positions of the wheel assemblies at the time when the constant position signals are received. In the second identifying process, the positions of the wheel assemblies, in which the corresponding transmitters are provided, are identified based on the received signal strength indications (RSSIs).
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公开(公告)号:US20240217278A1
公开(公告)日:2024-07-04
申请号:US17783142
申请日:2021-04-30
发明人: Yasuhisa TSUJITA
CPC分类号: B60C23/0447 , B60C23/004 , B60C23/137
摘要: An air pressure adjusting device includes a supplying device and a reception circuit configured to receive a detection signal that includes information indicating an air pressure of a tire. The supplying device includes a piston that supplies air to the tire by being moved by rotation of the tire. The air pressure adjusting device includes a switching unit and a controller. The switching unit is configured to be switched between a first state, in which the switching unit allows movement of the piston, and a second state, in which the switching unit prohibits movement of the piston. The controller is configured to control the switching unit. The controller is configured to obtain the information indicating the air pressure of the tire from the detection signal received by the reception circuit, switch the switching unit to the second state when the air pressure of the tire is greater than or equal to a threshold, and switch the switching unit to the first state when the air pressure of the tire is less than the threshold.
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公开(公告)号:US20220176756A1
公开(公告)日:2022-06-09
申请号:US17312210
申请日:2019-08-29
发明人: Yasuhisa TSUJITA
IPC分类号: B60C23/04 , B60R16/023
摘要: A transmitter includes a data generating unit configured to generate transmission data, a transmitting unit configured to transmit the transmission data to a receiver that includes a setting unit that sets a threshold for controlling a vehicle in accordance with the type of the tire valve, and a controlling unit that causes the transmitting unit to transmit the transmission data. The transmission data is information with which the setting unit sets the threshold. The transmission data includes valve identification information for causing the setting unit to recognize the type of the tire valve to which the transmitter is attached.
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公开(公告)号:US20220176755A1
公开(公告)日:2022-06-09
申请号:US17311782
申请日:2019-08-29
发明人: Yasuhisa TSUJITA
摘要: A transmitter is configured to be integrated with a tire valve attached to a wheel. The transmitter includes a data generating unit, a transmitting unit, and a controlling unit. The data generating unit is configured to generate transmission data. The transmitting unit is configured to transmit the transmission data to a receiver that includes a setting unit that sets a threshold related to control of a vehicle in accordance with a type of the wheel. The controlling unit causes the transmitting unit to transmit the transmission data. The transmission data includes wheel identification information. The wheel identification information is required by the setting unit when setting the threshold and allows the setting unit to recognize the type of the wheel to which the tire valve is attached.
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公开(公告)号:US20170164072A1
公开(公告)日:2017-06-08
申请号:US15026079
申请日:2015-06-26
发明人: Yasuhisa TSUJITA
IPC分类号: H04Q9/00 , H04B17/318 , B60C23/04
CPC分类号: H04Q9/00 , B60C23/04 , B60C23/0415 , B60C23/0416 , B60C23/0437 , B60C23/045 , B60C23/0459 , B60C23/0483 , B60C23/0486 , B60C23/0489 , B60C23/061 , H04B17/318 , H04Q2209/40 , H04Q2209/80
摘要: A wheel assembly position identifying apparatus includes transmitters, each of which is provided in one of wheel assemblies and includes a transmission section and a control section, and a receiver, which includes a receiving section, a measuring section, and a wheel assembly position identifying section. The wheel assembly position identifying section is configured to detect, more than once, a rotational position of each wheel assembly at which the RSSI has an extreme value, for each position detecting signal received during one rotation of the wheel assembly, and identify the position of the wheel assembly in which the corresponding transmitter is provided based on variation of the rotational position of the wheel assembly at which the RSSI has the extreme value.
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公开(公告)号:US20200300732A1
公开(公告)日:2020-09-24
申请号:US16605851
申请日:2018-10-01
发明人: Yasuhisa TSUJITA
IPC分类号: G01M17/02
摘要: A tire condition monitoring system includes transmitters that are respectively attached to wheel assemblies of a vehicle Each transmitter includes a power source, a data generating section a storage section that stores a correspondence relationship in which ranges obtained by dividing possible values of the detection value of a traveling state detecting section are respectively assigned to a plurality of specific angles set for the rotation angles of the wheel assemblies, and a transmission control section capable of performing specific angle transmission in which the transmission control section transmits the transmission data from the transmitting section when detecting that the rotation angle of the wheel assembly is any of the specific angles. When performing the specific angle transmission, the transmission control section transmits the transmission data when detecting that the rotation angle is the specific angle that corresponds to the detection value of the traveling state detecting section.
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公开(公告)号:US20200298637A1
公开(公告)日:2020-09-24
申请号:US16625303
申请日:2018-12-26
发明人: Akira MOMOSE , Yasuhisa TSUJITA
摘要: A fuel solution introducing method introduces a fuel solution into a tire. The tire includes a transmitter configured to transmit data that includes a detection result detected by a sensor to a receiver. The transmitter is operated with, as a power source, an organic power generation element configured to generate power through a chemical reaction with organic matter contained in the fuel solution. The fuel solution introducing method includes introducing the fuel solution and gas into the tire from a tire valve arranged on a wheel to which the tire is attached.
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公开(公告)号:US20180147899A1
公开(公告)日:2018-05-31
申请号:US15576597
申请日:2016-05-25
发明人: Yasuhisa TSUJITA
摘要: When receiving a transmission signal, a reception controller obtains a pulse count value of each of rotation sensor units. Next, the reception controller compares, with a threshold, the difference between the obtained pulse count value and a previously obtained pulse count value. The reception controller identifies, based on the result of comparison between the difference between pulse count values and the threshold, the positions of wheel assemblies, in each of which a transmitter is provided.
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