公开(公告)号：US20240053229A1

公开(公告)日：2024-02-15

申请号：US18269658

申请日：2021-08-30

Applicant: Hitachi Astemo, Ltd.

Inventor： Fumio YUKI ,  Takeo HOSOKAWA ,  Kenji YOSHIHARA ,  Tsukasa TAKAHASHI ,  Hiroyuki ABE

IPC: G01M17/02 ,  B60C23/04 ,  B60C23/18 ,  B60C23/06

CPC classification number: G01M17/02 ,  B60C23/0488 ,  B60C23/18 ,  B60C23/064

Abstract: An object of the present invention is to mitigate an influence of a physical quantity other than strain of a tire on a measurement result of a strain sensor and to improve measurement accuracy of the strain sensor. A strain amount detection device according to the present invention calculates an estimation value of a load applied to a tire by using data describing a relationship among an actually measured strain amount, a tire air pressure, a vehicle speed, a tire temperature, and a tire load.

公开(公告)号：US20240085253A1

公开(公告)日：2024-03-14

申请号：US18275625

申请日：2021-08-31

Applicant: Hitachi Astemo, Ltd.

Inventor： Kenji YOSHIHARA ,  Hiroyuki ABE ,  Tsukasa TAKAHASHI ,  Takeo HOSOKAWA

IPC: G01L1/22

CPC classification number: G01L1/2231 ,  B60C2019/004

Abstract: An object of the present invention is to provide a strain amount detection device capable of accurately detecting deformations, in multiple directions, of a tire by one strain measuring element. A strain amount detection device according to the present invention includes a disk-shaped base member that holds a strain measuring element, in which the base member acts as a strain body by transmitting strain of a tire to the strain measuring element.

公开(公告)号：US20240118174A1

公开(公告)日：2024-04-11

申请号：US18271984

申请日：2021-09-17

Applicant: Hitachi Astemo, Ltd.

Inventor： Hiroyuki ABE ,  Tsukasa TAKAHASHI ,  Kenji YOSHIHARA ,  Takeo HOSOKAWA

IPC: G01M17/02 ,  G01K1/14

CPC classification number: G01M17/02 ,  G01K1/14

Abstract: The present disclosure provides a sensor for tires capable of measuring a physical quantity including a temperature of a tire. An aspect of the present disclosure is a sensor for tires including: a base portion 5 fixed to an inside of a tire T and in contact with the tire T, and a sensor chip 7 including a tire temperature detection unit that detects the temperature of the tire T through the base portion 5.