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16 条记录 (耗时 0.013 秒)

    POWER GENERATION DEVICE
    3.
    发明申请
    POWER GENERATION DEVICE 审中-公开

    公开(公告)号：US20190280627A1

    公开(公告)日：2019-09-12

    申请号：US16426440

    申请日：2019-05-30

    申请人： DENSO CORPORATION ,  TOHOKU UNIVERSITY

    发明人： Yoichiro SUZUKI ,  Akira TAKAOKA ,  Takatoshi SEKIZAWA ,  Hiroki KUWANO

    IPC分类号： H02N2/18 ,  H02N2/00

    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.

    ROAD SURFACE CONDITION ESTIMATION DEVICE
    4.
    发明申请
    ROAD SURFACE CONDITION ESTIMATION DEVICE 审中-公开

    公开(公告)号：US20180364197A1

    公开(公告)日：2018-12-20

    申请号：US15770828

    申请日：2016-09-23

    申请人： DENSO CORPORATION

    发明人： Youichirou SUZUKI ,  Akira TAKAOKA ,  Takatoshi SEKIZAWA

    IPC分类号： G01N29/04 ,  B60C19/00 ,  G01N29/44

    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.

    ROAD SURFACE CONDITION ESTIMATION DEVICE
    5.
    发明申请
    ROAD SURFACE CONDITION ESTIMATION DEVICE 审中-公开

    公开(公告)号：US20180222458A1

    公开(公告)日：2018-08-09

    申请号：US15770517

    申请日：2016-09-23

    申请人： DENSO CORPORATION

    发明人： Youichirou SUZUKI ,  Akira TAKAOKA ,  Takatoshi SEKIZAWA

    IPC分类号： B60T8/172 ,  B60T8/171 ,  B60T8/1763 ,  G01W1/02 ,  G01M17/02

    摘要： A road surface condition estimation device extracts a detection signal of a vibration power generation element during a ground contact section to detect a road surface condition. A threshold used for determination of the ground contact section is variable according to a traveling speed of a vehicle. As a result, even if a pulse level of an output voltage of the vibration power generation element changes according to the traveling speed of the vehicle, the threshold corresponding to the change can be set. The ground contact section is determined with the use of the above thresholds, thereby being capable of performing the determination with high accuracy. Therefore, the road surface condition can be detected with high accuracy based on the ground contact section determined with high accuracy.

    COMMUNICATION SYSTEM
    6.
    发明申请
    COMMUNICATION SYSTEM 审中-公开
    通讯系统

    公开(公告)号：US20140136742A1

    公开(公告)日：2014-05-15

    申请号：US14078681

    申请日：2013-11-13

    申请人： DENSO CORPORATION

    发明人： Hirokazu OOYABU ,  Hideaki ISHIHARA ,  Akira TAKAOKA

    IPC分类号： G06F13/364

    CPC分类号： G06F13/364 ,  Y02D10/14

    摘要： A communication system includes: a master device; and slave devices communicating with the master device via a transmission line. The master device includes: an electric power supply unit for outputting an electric power supply signal having one specific frequency to the transmission line; a master communication unit for communicating with each slave device through a communication signal; and an electric power supply frequency setting unit for setting the one specific frequency. Each slave device includes: an electric power supply signal input and output unit for retrieving the electric power supply signal having a set frequency from the transmission line; a communication signal input and output unit for receiving and transmitting the communication signal to the transmission line; a slave communication unit for communicating with the master device through the communication signal; and a power source for energizing the slave communication unit according to the electric power supply signal.

    摘要翻译： 通信系统包括：主设备; 以及从设备经由传输线路与主设备通信。 主装置包括：电力供应单元，用于向传输线输出具有一个特定频率的电力供应信号; 主通信单元，用于通过通信信号与每个从设备进行通信; 以及用于设定一个特定频率的电源频率设定单元。 每个从设备包括：电源信号输入和输出单元，用于从传输线检索具有设定频率的电力供应信号; 通信信号输入和输出单元，用于接收和发送通信信号到传输线; 从通信单元，用于通过通信信号与主设备进行通信; 以及用于根据电力供应信号激励从通信单元的电源。

    VEHICULAR POWER LINE COMMUNICATION SYSTEM
    7.
    发明申请
    VEHICULAR POWER LINE COMMUNICATION SYSTEM 有权
    电力线路通信系统

    公开(公告)号：US20130208775A1

    公开(公告)日：2013-08-15

    申请号：US13761266

    申请日：2013-02-07

    申请人： Denso Corporation

    发明人： Fan WANG ,  Yuukou MURASE ,  Yoshie SUGIURA ,  Akira TAKAOKA

    IPC分类号： H04B3/46

    CPC分类号： H04B3/46 ,  H04B3/54 ,  H04B3/56

    摘要： A vehicular power line communication system includes a master and a slave. The master uses a pair of twisted wires, whose far ends are connected to each other to be loop-shaped, as a power line and a communication line. The master thereby outputs high-frequency signals via the pair of twisted wires, transmitting an electric power and data modulation signals. The slave includes an aperture antenna being loop-shaped to receive data modulation signals using an electromagnetic induction connection in an electromagnetic field generated in the pair of twisted wires in response to an energization current of the pair of twisted wires. The slave further includes an error rate monitor circuit which monitors an error rate of data which are obtained from demodulation of the data modulation signals received via the aperture antenna.

    摘要翻译： 车辆电力线通信系统包括主机和从机。 主机使用一对双绞线，其远端彼此连接成环形，作为电源线和通信线路。 从而通过一对双绞线输出高频信号，发送电力和数据调制信号。 从动装置包括一个环形的孔径天线，以响应于该对绞合线的通电电流，在一对扭绞线中产生的电磁场中使用电磁感应连接来接收数据调制信号。 从设备还包括错误率监视电路，该电路监视通过孔径天线接收的数据调制信号的解调获得的数据错误率。

    ROAD SURFACE CONDITION ESTIMATION DEVICE
    9.
    发明申请
    ROAD SURFACE CONDITION ESTIMATION DEVICE 审中-公开
    道路表面条件估算装置

    公开(公告)号：US20160368502A1

    公开(公告)日：2016-12-22

    申请号：US15122227

    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

    IPC分类号： B60W40/06 ,  G01M17/02

    CPC分类号： B60W40/06 ,  B60C19/00 ,  B60W40/068 ,  B60W2520/26 ,  B60W2530/20 ,  G01M17/025

    摘要： A road surface condition estimation device includes a tire side device and a vehicle side device. The tire side device includes a vibration detection unit outputting a detection signal indicating a tire vibration magnitude, a signal processing unit, and a transmitter. The signal processing unit extracts a ground contact duration during which a portion of the tread corresponding to an arrangement position of the vibration detection unit is in contact with a ground, calculates a high frequency component level of the detection signal detected during the ground contact duration, counts cumulative rotation number of the tire, and corrects the level of the high frequency component based on the cumulative rotation number of the tire. The transmitter transmits corrected level of the high frequency component as road surface condition data. The vehicle side device estimates a road surface condition of the travelling road based on the received road surface condition data.

    摘要翻译： 路面状态估计装置包括轮胎侧装置和车辆侧装置。 轮胎侧装置包括输出表示轮胎振动幅度的检测信号的振动检测单元，信号处理单元和发送器。 信号处理单元提取地面接触持续时间，在该接触持续时间期间，与振动检测单元的布置位置对应的部分胎面与地面接触，计算在接地持续时间期间检测到的检测信号的高频分量电平， 计算轮胎的累积转数，并且基于轮胎的累积转数来校正高频分量的水平。 发射机发送高频分量的校正电平作为路面状况数据。 车辆侧装置根据接收到的路面条件数据来估计行驶道路的路面状况。

    ROAD SURFACE CONDITION ESTIMATION DEVICE
    10.
    发明申请
    ROAD SURFACE CONDITION ESTIMATION DEVICE 审中-公开
    道路表面条件估算装置

    公开(公告)号：US20160368501A1

    公开(公告)日：2016-12-22

    申请号：US15122218

    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

    IPC分类号： B60W40/06

    CPC分类号： B60W40/06 ,  B60C19/00 ,  B60T2210/12 ,  B60W40/068 ,  B60W2520/28

    摘要： A road surface condition estimation device includes a tire side device and a vehicle side device. The tire side device includes a vibration detection unit attached to a back surface of a tire tread and outputting a detection signal indicating a tire vibration magnitude, a signal processing unit, and a transmitter. The signal processing unit extracts a ground contact duration during which a portion of the tread corresponding to an arrangement position of the vibration detection unit is in contact with a ground, and calculates a high frequency component level of the detection signal detected during the ground contact duration as road surface condition data. When the ground contact duration is ended, a transmission trigger is transmitted to the transmitter and the transmitter transmits the road surface condition data. The vehicle side device estimates a road surface condition of the travelling road based on the road surface condition data.

    摘要翻译： 路面状态估计装置包括轮胎侧装置和车辆侧装置。 轮胎侧装置包括安装在轮胎胎面的背面的振动检测单元，输出表示轮胎振动幅度的检测信号，信号处理单元和发送器。 信号处理单元提取地面接触持续时间，在该接地持续时间期间，与振动检测单元的布置位置对应的部分胎面与地面接触，并且计算在接地持续时间期间检测到的检测信号的高频分量电平 作为路面状况数据。 当接地持续时间结束时，传输触发被发送到发射机，并且发射机发射路面状况数据。 车辆侧装置基于路面状况数据来估计行驶道路的路面状况。