公开(公告)号：US09186938B2

公开(公告)日：2015-11-17

申请号：US14371304

申请日：2013-01-15

Applicant: DENSO CORPORATION

Inventor： Noriaki Okada ,  Nobuya Watabe ,  Masashi Mori ,  Takatoshi Sekizawa

IPC: G06F17/00 ,  B60C23/04

CPC classification number: B60C23/0408 ,  B60C23/0415 ,  B60C23/0416 ,  B60C23/0488 ,  B60C23/0489

Abstract: In a wheel position detector for a vehicle, a transmitter on each wheel repeatedly transmits a data frame containing identification information when an angle of the transmitter reaches a transmission angle. A receiver for receiving the frame is mounted on a body of a vehicle and performs wheel position detection based on the frame to specify a target wheel from which the frame is transmitted. The receiver acquires a tooth position of a gear rotating with a corresponding wheel when receiving the frame and sets a variation allowable range based on the tooth position. The receiver specifies the target wheel by determining whether the tooth position falls within the variation allowable range a predetermined number of times in a row.

Abstract translation: 在用于车辆的车轮位置检测器中，当发射机的角度达到传输角度时，每个车轮上的发射器重复发送包含识别信息的数据帧。 用于接收框架的接收器安装在车辆的车身上，并且基于该帧执行车轮位置检测，以指定从其发送帧的目标车轮。 接收器在接收到框架时​​获取与相应的车轮旋转的齿轮的齿位置，并且基于齿位置设定变化允许范围。 接收机通过确定牙齿位置是否处于一个预定次数的变化允许范围内来指定目标轮。

公开(公告)号：US11091163B2

公开(公告)日：2021-08-17

申请号：US16841488

申请日：2020-04-06

Applicant: DENSO CORPORATION

Inventor： Masashi Mori ,  Nobuya Watabe

IPC: B60W40/00 ,  B60W40/06 ,  B60W50/029 ,  B60W50/04

Abstract: A road surface condition assessing device includes a tire-side device disposed in a tire and a vehicle-body-side system disposed on a vehicle body side. The tire-side device generates a detection signal corresponding to a magnitude of vibration of the tire, produces road surface data based on the detection signal, and performs data communication with the vehicle-body-side system. The vehicle-body-side system performs the data communication with the tire-side device and assesses a road surface condition based on the road surface data received from the tire-side device.

公开(公告)号：US09827815B2

公开(公告)日：2017-11-28

申请号：US14776220

申请日：2014-03-11

Applicant: DENSO CORPORATION ,  NIPPON SOKEN, INC.

Inventor： Youichirou Suzuki ,  Takashi Saitou ,  Akira Takaoka ,  Nobuya Watabe ,  Takatoshi Sekizawa ,  Masashi Mori

IPC: B60C19/00 ,  B60C23/06 ,  B60C23/04 ,  B60T8/172

CPC classification number: B60C23/065 ,  B60C19/00 ,  B60C23/0411 ,  B60C23/064 ,  B60C2019/004 ,  B60T8/1725

Abstract: 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.

公开(公告)号：US09713944B2

公开(公告)日：2017-07-25

申请号：US15122820

申请日：2015-02-26

Applicant: DENSO CORPORATION

Inventor： Youichirou Suzuki ,  Akira Takaoka ,  Takashi Saitou ,  Nobuya Watabe ,  Masashi Mori ,  Takatoshi Sekizawa

IPC: B60C23/00 ,  B60C23/04 ,  G01L17/00 ,  B60C23/06 ,  B60C25/00 ,  B60C25/05 ,  G01B17/00

CPC classification number: B60C23/0486 ,  B60C23/064 ,  B60C25/007 ,  B60C25/0551 ,  G01B17/00 ,  G01L17/00

Abstract: 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.

公开(公告)号：US09692133B2

公开(公告)日：2017-06-27

申请号：US14436124

申请日：2013-10-23

Applicant: DENSO CORPORATION ,  NIPPON SOKEN, INC.

Inventor： Yuuji Kakuya ,  Munenori Matsumoto ,  Akira Takaoka ,  Toshifumi Shimoda ,  Takatoshi Sekizawa ,  Nobuya Watabe

IPC: H01Q1/24 ,  H01Q9/06 ,  H01Q1/48 ,  H01Q9/42 ,  H01Q21/30 ,  H01Q5/328 ,  H01Q5/378 ,  H01Q7/00

CPC classification number: H01Q9/065 ,  H01Q1/243 ,  H01Q1/48 ,  H01Q5/328 ,  H01Q5/378 ,  H01Q7/00 ,  H01Q9/42 ,  H01Q21/30

Abstract: 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.

公开(公告)号：US09539867B2

公开(公告)日：2017-01-10

申请号：US14371279

申请日：2012-12-12

Applicant: DENSO CORPORATION

Inventor： Noriaki Okada ,  Nobuya Watabe ,  Masashi Mori ,  Takatoshi Sekizawa

IPC: B60C23/04 ,  G01B21/22

CPC classification number: B60C23/0418 ,  B60C23/0415 ,  B60C23/0416 ,  B60C23/042 ,  B60C23/0489 ,  G01B21/22

Abstract: A wheel position detector for a vehicle includes: a transmitter at each wheel having a first control portion for transmitting a frame with specific identification information; and a receiver at a vehicle body receiving the frame from one wheel and having a second control portion for performing wheel position detection; and a wheel speed sensor for detecting a tooth of a gear. The second control portion: acquires gear information indicating a tooth position; sets a variation allowance based on the tooth position; registers the one wheel with using the variation allowance; and performs the wheel position detection by excluding an identified wheel as the one wheel from a candidate of another wheel mounting the transmitter that transmits another frame when the second control portion identifies the one wheel.

Abstract translation: 一种用于车辆的车轮位置检测器包括：每个车轮处的发射机具有用于发送具有特定识别信息的帧的第一控制部分; 以及在车身处接收来自一个车轮的框架的接收器，并具有用于执行车轮位置检测的第二控制部分; 以及用于检测齿轮的齿的车轮速度传感器。 第二控制部分：获取指示齿位置的齿轮信息; 根据牙齿位置设定变化余量; 使用变化补偿登记一个车轮; 并且当所述第二控制部分识别所述一个车轮时，从安装所述发送器的另一车轮的另一车轮的候选者排除所识别的车轮作为所述车轮位置检测。

公开(公告)号：US20150183279A1

公开(公告)日：2015-07-02

申请号：US14371304

申请日：2013-01-01

Applicant: DENSO CORPORATION

Inventor： Noriaki Okada ,  Nobuya Watabe ,  Masashi Mori ,  Takatoshi Sekizawa

IPC: B60C23/04

CPC classification number: B60C23/0408 ,  B60C23/0415 ,  B60C23/0416 ,  B60C23/0488 ,  B60C23/0489

Abstract: In a wheel position detector for a vehicle, a transmitter on each wheel repeatedly transmits a data frame containing identification information when an angle of the transmitter reaches a transmission angle. A receiver for receiving the frame is mounted on a body of a vehicle and performs wheel position detection based on the frame to specify a target wheel from which the frame is transmitted. The receiver acquires a tooth position of a gear rotating with a corresponding wheel when receiving the frame and sets a variation allowable range based on the tooth position. The receiver specifies the target wheel by determining whether the tooth position falls within the variation allowable range a predetermined number of times in a row.

Abstract translation: 在用于车辆的车轮位置检测器中，当发射机的角度达到传输角度时，每个车轮上的发射器重复发送包含识别信息的数据帧。 用于接收框架的接收器安装在车辆的车身上，并且基于该帧执行车轮位置检测，以指定从其发送帧的目标车轮。 接收器在接收到框架时​​获取与相应的车轮旋转的齿轮的齿位置，并且基于齿位置设定变化允许范围。 接收机通过确定牙齿位置是否处于一个预定次数的变化允许范围内来指定目标轮。

公开(公告)号：US20140372070A1

公开(公告)日：2014-12-18

申请号：US14368240

申请日：2012-12-04

Applicant: DENSO CORPORATION

Inventor： Noriaki Okada ,  Nobuya Watabe ,  Masashi Mori ,  Takatoshi Sekizawa

IPC: B60C23/04 ,  G01P3/44 ,  G01P15/00

CPC classification number: B60C23/0489 ,  B60C23/0416 ,  G01P3/44 ,  G01P15/003

Abstract: A wheel position detector for a vehicle includes: a transmitter at each wheel having a first control portion for generating and transmitting a frame with specific identification information; and a receiver at a vehicle body receiving the frame from one wheel and having a second control portion for performing wheel position detection; and a wheel speed sensor for detecting a tooth of a gear. The second control portion: acquires gear information indicating a tooth position; corrects the tooth position based on a time difference between acquiring of the gear information and receiving time of the frame; and specifies the one wheel based on the tooth position at reception time.

Abstract translation: 用于车辆的车轮位置检测器包括：每个车轮处的发射机具有用于生成和发送具有特定识别信息的帧的第一控制部分; 以及在车身处接收来自一个车轮的框架的接收器，并具有用于执行车轮位置检测的第二控制部分; 以及用于检测齿轮的齿的车轮速度传感器。 第二控制部分：获取指示齿位置的齿轮信息; 基于获取齿轮信息和帧的接收时间之间的时间差来校正牙齿位置; 并根据接收时刻的齿位置来指定一个车轮。

公开(公告)号：US20140371980A1

公开(公告)日：2014-12-18

申请号：US14374636

申请日：2013-02-05

Applicant: DENSO CORPORATION

Inventor： Takatoshi Sekizawa ,  Masashi Mori ,  Noriaki Okada ,  Nobuya Watabe

IPC: B60C23/04

CPC classification number: B60C23/0416 ,  B60C23/0488 ,  B60C23/0489

Abstract: In a wheel position detector for a vehicle, a transmitter on each wheel repeatedly transmits a data frame containing identification information when an angle of the transmitter reaches a transmission angle. A receiver for receiving the frame is mounted on a body of a vehicle and performs wheel position detection, based on the frame, to specify a target wheel from which the frame is transmitted. The receiver acquires a tooth position of a gear rotating with a corresponding wheel when receiving the frame. The receiver specifies the target wheel based on a frequency with which the tooth position appears.

Abstract translation: 在用于车辆的车轮位置检测器中，当发射机的角度达到传输角度时，每个车轮上的发射器重复发送包含识别信息的数据帧。 用于接收框架的接收器安装在车辆的车身上，并且基于该帧执行车轮位置检测，以指定从其发送帧的目标车轮。 接收器在接收到帧时获取与相应的轮旋转的齿轮的齿位置。 接收机根据出现齿位置的频率指定目标车轮。

公开(公告)号：US08723662B2

公开(公告)日：2014-05-13

申请号：US13772878

申请日：2013-02-21

Applicant: Denso Corporation

Inventor： Nobuya Watabe ,  Masashi Mori ,  Noriaki Okada ,  Takatoshi Sekizawa

IPC: B60C23/00 ,  B60C23/02 ,  G01M17/02 ,  B60R22/00

CPC classification number: B60C23/0416 ,  B60C23/0488 ,  B60C23/0489

Abstract: In a tire pressure detecting apparatus, a receiver stores wheel positions detected by a previous wheel position detection as previous wheel positions. When an ignition switch is turned on and until wheel positions are newly specified by a current wheel position detection, the receiver permits an indicator to indicate tire pressure of each of wheels based on the previous wheel positions to notify a driver of the tire pressure from an earlier timing. The receiver permits the indication of the tire pressure based on the previous wheel positions only when a difference of the tire pressure between the wheels is equal to or less than a threshold. If there is a possibility that tire pressure of one of the wheels is insufficient, the receiver prevents the indicator to indicate the tire pressure until a current wheel position detection finishes.

Abstract translation: 在轮胎压力检测装置中，接收器将由前一轮位置检测检测到的车轮位置存储为前轮的位置。 当点火开关打开并且通过当前车轮位置检测重新指定车轮位置时，接收器允许指示器基于先前的车轮位置来指示每个车轮的轮胎压力，以通知驾驶员来自驾驶员的轮胎压力 更早的时机。 只有当车轮之间的轮胎压力的差等于或小于阈值时，接收器才允许基于先前车轮位置的轮胎压力的指示。 如果一个车轮的轮胎压力有可能不足，则接收器防止指示器指示轮胎压力，直到当前车轮位置检测结束。