公开(公告)号：US20160280018A1

公开(公告)日：2016-09-29

申请号：US15027367

申请日：2014-09-30

Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO ,  PACIFIC INDUSTRIAL CO., LTD.

Inventor： Masanori KOSUGI ,  Takao ARAYA ,  Koji OKUMURA

IPC: B60C23/04

CPC classification number: B60C23/0415 ,  B60C23/0416 ,  B60C23/0462 ,  B60C23/0488 ,  B60C23/0489

Abstract: Each of a plurality of tire air pressure detectors includes an information retention portion that retains one or more pieces of timing information indicating the time at which the tire air pressure detector has rotated to a specific detector angle in a first time band for withholding transmission of a radio wave signal, and a radio wave transmission control portion that transmits one or more of the pieces of timing information retained in the information retention portion to a receiver in a second time band enabling transmission of the radio wave signal. The receiver includes an axle rotation amount reader portion that receives axle rotation amount information generated in each of a plurality of axle rotation detection portions, and a position determination portion that calculates an axle rotation amount at the point in time at which the tire air pressure detectors have rotated to the specific detector angle.

Abstract translation: 多个轮胎空气压力检测器中的每一个包括信息保持部分，其保持一个或多个定时信息，其指示轮胎气压检测器已经在第一时间带中旋转到特定检测器角度的时间，以阻止传送 无线电波信号和无线电波传输控制部分，其将保留在信息保持部分中的一条或多条定时信息发送到能够传送无线电波信号的第二时间段中的接收机。 接收机包括轴转量读取器部分，其接收在多个轴旋转检测部分中的每一个中产生的轮转量信息，以及位置确定部分，其计算在轮胎气压检测器 已经旋转到特定的检测器角度。

公开(公告)号：US20170190224A1

公开(公告)日：2017-07-06

申请号：US15101475

申请日：2015-09-09

Applicant: PACIFIC INDUSTRIAL CO., LTD.

Inventor： Takao ARAYA

IPC: B60C23/04

CPC classification number: B60C23/0416 ,  B60C23/04 ,  B60C23/0408 ,  B60C23/0488 ,  B60C23/0489

Abstract: A vehicle is mounted with a pulse detecting unit that detects rotation of a wheel as pulses, a wheel rotation number storage unit that stores the number of pulses in correspondence with time, and a wheel position specifying device that specifies on which of the plurality of wheels the tire state detecting device arranged on each wheel is arranged. The wheel position specifying device includes a reception unit that receives a transmission signal, including a time required for the wheel to make a predetermined number of rotations, transmitted from each tire state detecting device, and a specifying unit that specifies the wheel on which each tire state detecting device is arranged from a difference of the number of pulses counted during the time included in the transmission signal and the number of pulses while the wheel makes the predetermined number of rotations.

公开(公告)号：US20170259627A1

公开(公告)日：2017-09-14

申请号：US15022785

申请日：2015-09-09

Applicant: PACIFIC INDUSTRIAL CO., LTD.

Inventor： Takao ARAYA

IPC: B60C23/04 ,  G01B5/24 ,  G01B5/00 ,  B60T8/171 ,  B60T8/1761

CPC classification number: B60C23/0416 ,  B60C23/04 ,  B60C23/0486 ,  B60C23/0488 ,  B60C23/0489 ,  B60T8/171 ,  B60T8/1761 ,  B60T2240/03 ,  G01B5/0025 ,  G01B5/24

Abstract: The tire state detecting device includes a calculating unit that calculates an acceleration difference of the gravitational acceleration value acquired at a first acquiring angle and the gravitational acceleration value acquired at a second acquiring angle; a storage unit that stores a correction formula defined in advance based on an angular difference between the adjacent acquiring angles and an angular difference of the first acquiring angle and the second acquiring angle, and corrects the first acquiring angle to an angle determined in advance from the acceleration difference; a transmission unit that transmits a transmission signal including information indicating the angle determined in advance in addition to information indicating the state of the tire; and a control unit that causes the transmission signal to be transmitted to a wheel position specifying device.