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公开(公告)号：US10086835B2
公开(公告)日：2018-10-02
申请号：US15516267
申请日：2015-11-02
摘要： A road-surface-condition estimation device is configured by a tire-side device and a vehicle-side device so as to grasp a road surface condition based on road surface condition data transmitted from a tire-side device. As a result, the road surface condition or a road surface μ of a traveling road surface of a vehicle can be accurately detected, and a more accurate lane keeping control can be performed according to the detection result. In particular, since the tire-side device estimates the road surface condition by detecting the vibration of a ground contact surface of the tire, the road surface condition can be estimated more accurately. Therefore, the more accurate lane keeping control can be performed.
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公开(公告)号：US09827815B2
公开(公告)日：2017-11-28
申请号：US14776220
申请日：2014-03-11
发明人： Youichirou Suzuki , Takashi Saitou , Akira Takaoka , Nobuya Watabe , Takatoshi Sekizawa , Masashi Mori
CPC分类号： B60C23/065 , B60C19/00 , B60C23/0411 , B60C23/064 , B60C2019/004 , B60T8/1725
摘要： A tire device includes a vibration power generating element, a signal processing unit, and a transmitter. The vibration power generating element is arranged inside a tire and outputs a voltage corresponding to a time variation of a vibration generated in a tread of the tire. The signal processing unit is disposed inside the tire and performs signal processing on the voltage outputted from the vibration power generating element. The transmitter is arranged inside the tire and sends data subjected to the signal processing in the signal processing unit to a device provided outside the tire. The signal processing unit and the transmitter are driven by power generated in the vibration power generating element.
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公开(公告)号：US09764714B2
公开(公告)日：2017-09-19
申请号：US15100466
申请日：2014-11-19
发明人： Youichirou Suzuki , Akira Takaoka , Takashi Saitou , Masashi Mori
CPC分类号： B60R25/24 , B60R25/32 , E05F15/70 , E05F15/77 , E05Y2900/531
摘要： In a vehicular control device, an operating intention detection unit is disposed on a tire or wheel rim of a vehicle to detect an operating intention of a user relative to an opening/closing body of the vehicle. An operating intention acquisition unit is disposed on the vehicle body of the vehicle to acquire the operating intention. An ID code acquisition unit acquires, from a mobile device carried by the user, an ID code that identifies the user or the mobile device. An ID code determination unit determines whether the ID code is correct. The condition establishment determination unit determines, based on the operating intention of the user and on the result of ID code determination, whether an output condition for outputting operating instruction information that designates an operation of the opening/closing body is established. An output unit outputs the operating instruction information when the output conditions are established.
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公开(公告)号：US09692133B2
公开(公告)日：2017-06-27
申请号：US14436124
申请日：2013-10-23
发明人： Yuuji Kakuya , Munenori Matsumoto , Akira Takaoka , Toshifumi Shimoda , Takatoshi Sekizawa , Nobuya Watabe
摘要： In an antenna, a first element is connected to a GND of a feeder, on the same plane as a GND of a wireless circuit, and isolated from the GND of the wireless circuit. A second element is on the same plane as the GND of the wireless circuit and a first end connected to the first element and a second end as an open end. The third element has a first end connected to a power source of the feeder and located in a region occupied by the first element perpendicularly to the first element so that its first end source faces down. The fourth element has a first end connected to a second end of the third element and a second end as an open end, is parallel to the first element, and is perpendicular to a line connecting the first and second ends of the second element.
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公开(公告)号：US20150270614A1
公开(公告)日：2015-09-24
申请号：US14436124
申请日：2013-10-23
发明人： Yuuji Kakuya , Munenori Matsumoto , Akira Takaoka , Toshifumi Shimoda , Takatoshi Sekizawa , Nobuya Watabe
摘要： In an antenna, a first element is connected to a GND of a feeder, on the same plane as a GND of a wireless circuit, and isolated from the GND of the wireless circuit. A second element is on the same plane as the GND of the wireless circuit and a first end connected to the first element and a second end as an open end. The third element has a first end connected to a power source of the feeder and located in a region occupied by the first element perpendicularly to the first element so that its first end source faces down. The fourth element has a first end connected to a second end of the third element and a second end as an open end, is parallel to the first element, and is perpendicular to a line connecting the first and second ends of the second element.
摘要翻译： 在天线中，第一元件连接到馈线的GND，与无线电路的GND在同一平面上，并与无线电路的GND隔离。 第二元件位于与无线电路的GND相同的平面上，并且与第一元件连接的第一端和作为开放端的第二端。 第三元件具有连接到馈电器的电源的第一端，并且位于由第一元件垂直于第一元件占据的区域中，使得其第一端源面朝下。 第四元件具有连接到第三元件的第二端的第一端和作为开口端的第二端，平行于第一元件，并且垂直于连接第二元件的第一端和第二端的线。
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公开(公告)号：US10471959B2
公开(公告)日：2019-11-12
申请号：US15531582
申请日：2015-12-08
申请人： DENSO CORPORATION , SOKEN, INC.
IPC分类号： B60W30/16 , B60C19/00 , B60W40/12 , B60W40/13 , B60T8/172 , B60W30/14 , B60W40/068 , B60T8/173 , B60T7/22 , B60T8/17 , B60C99/00
摘要： A vehicle control device including a tire-side device and a vehicle-side device is provided. The tire-side device includes a vibration detection unit that outputs a detection signal corresponding to a magnitude of vibration of a tire, a signal processing unit that generates μ data representing a friction coefficient between the tire and a road surface by processing the detection signal, and a transmitter that transmits the μ data. The vehicle-side device includes a receiver that receives the μ data and a travel control unit that estimates the friction coefficient based on the μ data, acquires a braking distance of the vehicle based on the friction coefficient, and controls acceleration and deceleration of the vehicle based on the braking distance.
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公开(公告)号：US20130196610A1
公开(公告)日：2013-08-01
申请号：US13753020
申请日：2013-01-29
发明人： Kenichiro Sanji , Munenori Matsumoto , Takatoshi Sekizawa , Masahiro Sugiura , Nobuya Watabe , Akira Takaoka , Takashi Saitou
IPC分类号： H04W4/00
CPC分类号： H04W4/80 , G07C9/00309 , G07C2009/00325 , G07C2009/00793 , H04B1/0458 , H04B1/18
摘要： A first communication apparatus and a second communication apparatus are capable of wireless communication with each other. The first communication apparatus has a normal operation mode and a tuning mode that differs from the normal operation mode and allows a variable matching portion to adjust a matching state. When the tuning mode is selected, the first transmission portion transmits an operation mode transition request signal to the second communication apparatus. A first reception portion receives a tuning reference signal transmitted from the second communication apparatus in response to the operation mode transition request signal. A reception signal intensity measurement portion measures a reception signal intensity of the received tuning reference signal. The variable matching portion adjusts a matching state based on the measured reception signal intensity of the tuning reference signal.
摘要翻译： 第一通信装置和第二通信装置能够彼此进行无线通信。 第一通信装置具有与正常操作模式不同的正常操作模式和调谐模式，并且允许可变匹配部分调整匹配状态。 当选择调谐模式时，第一发送部分向第二通信装置发送操作模式转换请求信号。 第一接收部分响应于操作模式转换请求信号接收从第二通信装置发送的调谐参考信号。 接收信号强度测量部分测量所接收的调谐参考信号的接收信号强度。 可变匹配部分基于所测量的调谐参考信号的接收信号强度来调整匹配状态。
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公开(公告)号：US10029681B2
公开(公告)日：2018-07-24
申请号：US15126457
申请日：2015-03-12
申请人： DENSO CORPORATION
发明人： Youichirou Suzuki , Akira Takaoka , Takashi Saitou , Nobuya Watabe , Masashi Mori , Takatoshi Sekizawa
摘要： An erroneous start is controlled based on vibrations of a tire, irrespective of a poor visibility or an algorithm of an image processing. A tire-side unit detects a vibration of a tire when the tire has collided with a wheel stop or the like, and outputs collision data to a vehicle-side unit. The vehicle-side unit determines an erroneous start of the vehicle. Therefore, the erroneous start of the vehicle can be controlled without being affected by the poor visibility or the algorithm of the image processing as in a case of utilizing a camera or a radar.
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公开(公告)号：US11463024B2
公开(公告)日：2022-10-04
申请号：US16426440
申请日：2019-05-30
摘要： A power generation device is provided. A weight may vibrate in one direction as an axial direction in response to an external vibration. A beam may be arranged in at least one side with respect to the weight in the axial direction of the weight, and vibrate together with the weight. A piezoelectric element may be mounted on the beam. A guide may include a hollow guiding a movement of the weight in the axial direction. A stopper may be included in the weight. The stopper may restrict an amount of the movement of the weight in the axial direction within a predetermined amount. A stopper wall may stop the movement of the weight in the axial direction by contacting with the stopper.
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公开(公告)号：US10605780B2
公开(公告)日：2020-03-31
申请号：US15770828
申请日：2016-09-23
申请人： DENSO CORPORATION
IPC分类号： G01N29/04 , B60T8/173 , G01H1/00 , B60T8/172 , B60C99/00 , B60W40/068 , B60C23/06 , G01N29/44 , B60C19/00
摘要： In order to detect a road surface condition, a road surface condition estimation device extracts a detection signal of a portion that detects vibration in a tire tangential direction in a vibration detection and power generation unit which is in a ground contact section, for example, a vibration power generation element. In this case, it is identified that the vibration detection and power generation unit is in the ground contact section, based on whether a centrifugal force acting on the vibration detection and power generation unit is generated, or not, and it is identified that a time when no centrifugal force is generated is in the ground contact section. As a result, even if a pulse level of an output voltage of the vibration detection generation unit changes according to a traveling speed of the vehicle, the ground contact section can be accurately identified.
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