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公开(公告)号：US20230406046A1
公开(公告)日：2023-12-21
申请号：US18247694
申请日：2021-09-21
发明人： Masahiro NARUSE , Jun MATSUDA , Heishiro FUDO , Eiji SHINOHARA , Shinya ICHISE , Shinichi SEO , Yuki OHNO
CPC分类号： B60C11/246 , B60C19/00 , B60C2019/004
摘要： A tire information detection device that detects tire information including at least one of wear, deformation, road surface state, ground contact state, presence/absence of failure, travel history, load state, or frictional coefficient, includes at least one detection unit disposed on a tire inner surface, a power supply unit to supply power to the detection unit, a position information detection unit to detect position information of the tire or a vehicle, an additional information acquisition unit to acquire additional information associated with the position information, a determination unit to determine whether a current position specified based on the position information is included in an area that satisfies a determination condition extracted from the additional information, and a control unit to control measurement of the detection unit based on a determination result from the determination unit.
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公开(公告)号：US20230160780A1
公开(公告)日：2023-05-25
申请号：US17995377
申请日：2021-03-18
发明人： Masahiro NARUSE , Jun MATSUDA , Heishiro FUDO , Eiji SHINOHARA , Shinya ICHISE , Hiroyuki TOBARI
CPC分类号： G01M17/02 , G01L17/00 , G01B7/16 , B60C23/064 , B60C23/061
摘要： Provided is a tire information detecting device capable of determining an attachment state of a sensor module based on a measurement value supplied from the sensor module installed in a pneumatic tire and accurately detecting tire information. A tire information detecting device (10) configured to detect tire information including at least one of wear of a tire, deformation of the tire, a road surface state, a ground contact state of the tire, presence of failure of the tire, a travel history of the tire, or a load state of the tire includes at least one sensor module (20) disposed on a tire inner surface and a determination unit (15) configured to determine an attachment state of the sensor module (20) based on a measurement value supplied from the sensor module (20).
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公开(公告)号：US20240290142A1
公开(公告)日：2024-08-29
申请号：US18660834
申请日：2024-05-10
发明人： Heishiro FUDO , Shinichi SEO , Eiji SHINOHARA , Shinya ICHISE , Nozomi ITO , Dong gu KIM , Naoshi MIYASHITA , Tadashi HIGUCHI
摘要： A method creates determination spaces for determining a road surface state of a road surface on which a vehicle is running from output waveform data obtained by measuring changes in a physical quantity of a tire of the vehicle during the running using information regarding road surfaces and the output waveform data. The method includes obtaining the output waveform data in a plurality of different road surface states and a running condition at times of measurement of the output waveform data, classifying the output waveform data into a plurality of groups on a basis of the running condition, performing, for each group, machine learning using training data where the output waveform data is associated with information regarding the road surface states, and creating the determination space corresponding to the group.
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公开(公告)号：US20230081018A1
公开(公告)日：2023-03-16
申请号：US17759419
申请日：2021-01-15
发明人： Masahiro NARUSE , Jun MATSUDA , Heishiro FUDO , Eiji SHINOHARA , Shinya ICHISE , Hiroyuki TOBARI , Yuki ONO
摘要： A wear state detection device includes an element configured to generate voltage based on deformation of a tread portion during tire rotation, a voltage detection unit configured to detect the voltage generated by the element, a speed detection unit configured to detect vehicle speed or tire rotation speed, a storage area configured to store waveform data over time of the voltage detected by the voltage detection unit together with the vehicle speed or the tire rotation speed detected by the speed detection unit, a calculation unit configured to calculate frequency of exceedance of a predetermined threshold value based on the waveform data in a predetermined speed range and a predetermined time period stored in the storage area, and a determination unit configured to determine a progress condition of wear of the tread portion based on the frequency of exceedance of the predetermined threshold value calculated by the calculation unit.
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