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1. 发明申请

US20180364197A1 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.

2. 发明申请

US20180222458A1 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.

3. 发明申请

US20170057306A1 TIRE CONDITION DETECTION DEVICE 有权
标题翻译：轮胎状况检测装置
公开(公告)号：US20170057306A1
公开(公告)日：2017-03-02
申请号：US15122820
申请日：2015-02-26
申请人： DENSO CORPORATION
发明人： Youichirou SUZUKI , Akira TAKAOKA , Takashi SAITOU , Nobuya WATABE , Masashi MORI , Takatoshi SEKIZAWA
IPC分类号： B60C23/04 , B60C25/05 , G01B17/00 , B60C25/00
CPC分类号： B60C23/0486 , B60C23/064 , B60C25/007 , B60C25/0551 , G01B17/00 , G01L17/00
摘要： Data representing a ground contact time of a tire is transmitted from a tire side device, and received by a vehicle side device to calculate the ground contact time of the tire, to thereby calculate a ground contact length of the tire at that time. In a situation where a tire air pressure may change such as a tire exchange, the ground contact length at that time is set as a reference ground contact length, and a determination reference value is set on the basis of the reference ground contact length. As a result, the relative determination reference value corresponding to the tire type can be set, and a variation of the reduction rate of the tire air pressure when it is determined that the tire air pressure is reduced can be reduced. As a result, the reduction in the tire air pressure can be detected with high precision regardless of the tire type.
摘要翻译：表示轮胎的接地时间的数据从轮胎侧装置传递，并且由车辆侧装置接收，以计算轮胎的接地时间，从而计算出当时轮胎的接地长度。在轮胎气压变化等轮胎更换的情况下，将此时的接地长度设定为基准接地长度，并且基于参考接地长度来设定判定基准值。结果，可以设定与轮胎类型相对应的相对判定基准值，并且可以减少当确定轮胎空气压力降低时轮胎空气压力的减小率的变化。结果，无论轮胎类型如何，都可以高精度地检测轮胎空气压力的降低。

4. 发明申请

US20160297399A1 VEHICULAR CONTROL DEVICE 有权
标题翻译：车辆控制装置
公开(公告)号：US20160297399A1
公开(公告)日：2016-10-13
申请号：US15100466
申请日：2014-11-19
申请人： DENSO CORPORATION , NIPPON SOKEN, INC.
发明人： Youichirou SUZUKI , Akira TAKAOKA , Takashi SAITOU , Masashi MORI
IPC分类号： B60R25/24 , E05F15/70 , B60R25/32
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.
摘要翻译：在车辆控制装置中，操作意图检测单元设置在车辆的轮胎或车轮边缘上，以检测用户相对于车辆的开闭体的操作意图。操作意图获取单元被布置在车辆的车体上以获得操作意图。 ID代码获取单元从用户携带的移动设备获取识别用户或移动设备的ID代码。 ID码确定单元确定ID码是否正确。条件建立确定单元基于用户的操作意图和ID代码确定的结果来确定是否建立了用于输出指定开/关主体的操作的操作指令信息的输出条件。当输出条件建立时，输出单元输出操作指令信息。

5. 发明申请

US20160031273A1 TIRE DEVICE 有权
标题翻译：轮胎装置
公开(公告)号：US20160031273A1
公开(公告)日：2016-02-04
申请号：US14776220
申请日：2014-03-11
申请人： DENSO CORPORATION , NIPPON SOKEN, INC.
发明人： Youichirou SUZUKI , Takashi SAITOU , Akira TAKAOKA , Nobuya WATABE , Takatoshi SEKIZAWA , Masashi MORI
IPC分类号： B60C23/06 , B60C19/00
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.
摘要翻译：轮胎装置包括振动发电元件，信号处理单元和发射器。振动发电元件设置在轮胎内部，并输出与轮胎胎面产生的振动的时间变化相对应的电压。信号处理单元设置在轮胎内，对从振动发电元件输出的电压进行信号处理。发射器布置在轮胎内部，并将经过信号处理的信号处理单元中的数据发送到设在轮胎外部的装置。信号处理单元和发送器由振动发电元件中产生的电力驱动。

6. 发明申请

US20230117249A1 DISTANCE ESTIMATION DEVICE AND DISTANCE ESTIMATION SYSTEM 有权
公开(公告)号：US20230117249A1
公开(公告)日：2023-04-20
申请号：US18069291
申请日：2022-12-21
申请人： DENSO CORPORATION
发明人： Naohito TAKASUKA , Youichirou SUZUKI , Kenichirou SANJI
IPC分类号： G01S11/08 , B60R25/24
摘要： A distance estimation device includes a mobile terminal transmitting a radio wave and an in-vehicle device. The in-vehicle device includes a direction determination unit having a receiver, a distance measurement unit, and a correction unit. The receiver receives the radio wave and is arranged on a side of the vehicle. The direction determination unit determines a direction from which the radio wave comes based on a signal strength of the received radio wave. The distance measurement unit receives the radio wave and measures a distance from an installation position of the distance measurement unit to the mobile terminal based on information other than a signal strength of the received radio wave. The correction unit corrects the measured distance to be a distance from an edge of the vehicle to the mobile terminal based on the determined direction and the installation position.

7. 发明申请

US20180118209A1 VEHICLE CONTROL DEVICE 审中-公开
公开(公告)号：US20180118209A1
公开(公告)日：2018-05-03
申请号：US15531582
申请日：2015-12-08
申请人： DENSO CORPORATION , SOKEN, INC.
发明人： Youichirou SUZUKI , Akira TAKAOKA , Masashi MORI , Takatoshi SEKIZAWA
IPC分类号： B60W30/16 , B60C19/00 , B60W30/14 , B60W40/068 , B60W40/13
CPC分类号： B60W30/16 , B60C19/00 , B60C99/00 , B60C2019/004 , B60T7/22 , B60T8/17 , B60T8/172 , B60T8/1725 , B60T8/173 , B60T2201/024 , B60T2210/12 , B60W30/14 , B60W30/143 , B60W40/068 , B60W40/12 , B60W40/13 , B60W2400/00 , B60W2520/10 , B60W2530/20 , B60W2550/148 , B60W2550/308 , B60W2710/0605 , B60W2710/18 , B60W2720/106
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.

8. 发明申请

US20160368502A1 ROAD SURFACE CONDITION ESTIMATION DEVICE 审中-公开
标题翻译：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。

9. 发明申请

US20160368501A1 ROAD SURFACE CONDITION ESTIMATION DEVICE 审中-公开
标题翻译：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。

10. 发明申请

US20170305421A1 LANE KEEPING CONTROL SYSTEM 审中-公开
公开(公告)号：US20170305421A1
公开(公告)日：2017-10-26
申请号：US15516267
申请日：2015-11-02
申请人： DENSO CORPORATION , NIPPON SOKEN, INC.
发明人： Takatoshi SEKIZAWA , Youichirou SUZUKI , Masashi MORI , Akira TAKAOKA
IPC分类号： B60W30/12 , B60W10/20 , B60W10/18 , B60C19/00 , B60W50/14
CPC分类号： B60W30/12 , B60C19/00 , B60C23/064 , B60C2019/004 , B60T7/12 , B60T7/22 , B60T8/17 , B60T8/1755 , B60T8/17557 , B60T2201/083 , B60T2201/087 , B60W10/18 , B60W10/20 , B60W40/068 , B60W50/14 , B60W2420/42 , B60W2550/12 , B60W2550/147 , B60W2550/148 , B60W2710/18 , B60W2710/20 , B62D6/00 , G08G1/167
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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