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.

公开(公告)号：US20230079532A1

公开(公告)日：2023-03-16

申请号：US17801620

申请日：2020-12-25

Applicant: Hitachi Astemo, Ltd.

Inventor： Binti Haridan FATIN FARHANAH ,  Hiroyuki ABE ,  Takayuki YOGO ,  Nozomi YATSUMONJI ,  Mizuki IJUIN

IPC: G01F1/692

Abstract: To provide an airflow amount measuring device capable of accurately measuring a flow amount of air without occurrence of warpage in a thin film portion when an airflow measuring element is mounted on a lead frame to form a resin-sealed package in which the airflow amount measuring element and the lead frame are sealed. A chip package includes a lead frame, an element mounted on the lead frame and having a detection portion, and a structure for sealing the lead frame and the element such that at least the detection portion is exposed. Then, the curvature radius ρ of the exposed portion of the element exposed from the sealing resin member is 2.13 or less.

公开(公告)号：US20230332936A1

公开(公告)日：2023-10-19

申请号：US17796957

申请日：2020-12-22

Applicant: Hitachi Astemo, Ltd.

Inventor： Mizuki SHIBATA ,  Takayuki YOGO ,  Akira UENODAN ,  Hiroyuki ABE ,  Binti Haridan FATIN FARHANAH

IPC: G01F1/684 ,  G01F1/696

CPC classification number: G01F1/6842 ,  G01F1/6847 ,  G01F1/696

Abstract: Provided is a highly reliable thermal flow meter. In a thermal flow meter 20, a flow rate detection element 321 that detects an air flow rate, and a conductive coating film 400 containing a conductive substance and a resin as constituent elements are provided on at least a part of a portion provided in an auxiliary passage 135 on a surface facing a detection surface 322 of the flow rate detection element 321.

公开(公告)号：US20220390264A1

公开(公告)日：2022-12-08

申请号：US17776859

申请日：2020-10-20

Applicant: Hitachi Astemo, Ltd.

Inventor： Takayuki YOGO ,  Binti Haridan FATIN FARHANAH ,  Akira UENODAN ,  Hiroyuki ABE ,  Mizuki IJUIN

IPC: G01F15/16

Abstract: The objective of the present invention is to obtain a flow rate measurement device capable of reducing variations in the flow rate detection accuracy by suppressing the inclination of a chip package relative to a circuit board. A flow rate measurement device 20 of the present invention includes a chip package 310 having a flow rate sensor 311 and a passage wall 314 formed therein, and a circuit board 300 on which the chip package 310 is mounted, in which the chip package 310 is mounted such that the flow rate sensor 311 faces a portion of the circuit board 300 and a portion of the passage wall 314 as a resin portion of the chip package 310 contacts the circuit board 300.

公开(公告)号：US20220099469A1

公开(公告)日：2022-03-31

申请号：US17416585

申请日：2020-01-21

Applicant: Hitachi Astemo, Ltd.

Inventor： Nozomi YATSUMONJI ,  Akira UENODAN ,  Takahiro MIKI ,  Hiroyuki ABE

IPC: G01F1/684 ,  G01F15/14

Abstract: Provided is a physical quantity detection device capable of electrically connecting with a neutralization region arranged at a place through which a measurement target gas passes in a simple process. A physical quantity detection device 300 of the invention includes a housing 301 having a terminal 303 and a passage portion 100 through which a measurement target gas passes, and a support body 600 that supports a flow rate detection element 601. A neutralization region 500 is formed on the bottom surface of the passage portion of the housing, and the support body is supported by the housing such that the detection unit of the flow rate detection element faces the neutralization region.

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：US20210398886A1

公开(公告)日：2021-12-23

申请号：US17288618

申请日：2019-09-20

Applicant: Hitachi Astemo, Ltd.

Inventor： Binti Haridan FATIN FARHANAH ,  Takayuki YOGO ,  Hiroyuki ABE

IPC: H01L23/495 ,  H01L23/31 ,  H01L23/04 ,  H05K3/34 ,  H05K1/18 ,  G01F5/00

Abstract: To obtain a chip package positioning structure capable of adjusting a tilt and a position of a chip package with respect to the circuit board and reducing mounting variations. The chip package positioning and fixing structure that positions and fixes, to a circuit board 4, a chip package 5 in which a flow rate detection element 53 is sealed with a resin so that a detection portion is at least exposed, in which the chip package includes a solder fixation portion 52 that fixes the chip package to the circuit board by soldering, and a positioning portion 514 that performs positioning to the circuit board, and the positioning portion is provided closer to the flow rate detection element from the solder fixation portion.

公开(公告)号：US20210396561A1

公开(公告)日：2021-12-23

申请号：US17291535

申请日：2019-11-14

Applicant: Hitachi Astemo, Ltd.

Inventor： Takayuki YOGO ,  Binti Haridan FATIN FARHANAH ,  Hiroyuki ABE ,  Satoshi IKEO ,  Yuta CHIBA

IPC: G01F1/69

Abstract: Provided is a physical quantity measurement device capable of preventing a sealing of a cavity portion on a back surface side of a diaphragm of a thermal air flow rate sensor while improving measurement accuracy of the thermal air flow rate sensor as compared with the related art. A physical quantity measurement device 20 includes a lead frame 208f having a mounting surface f1 on which a flow rate sensor 205 which is the thermal air flow rate sensor is mounted, and a flow passage forming member 209 disposed on a back surface f2 opposite to the mounting surface f1 of the lead frame 208f. A ventilation flow path 210 is formed by a first through hole 211 provided in the lead frame 208f and communicating with a cavity portion 205c of the flow rate sensor 205, a second through hole 212 provided in the lead frame 208f and opened in the mounting surface f1, and a connection flow path 213 that is defined between the lead frame 208f and the flow passage forming member 209 and connecting the first through hole 211 and the second through hole 212.

公开(公告)号：US20240416927A1

公开(公告)日：2024-12-19

申请号：US18702944

申请日：2021-10-21

Applicant: HITACHI ASTEMO, LTD.

Inventor： Fumio YUKI ,  Takeo HOSOKAWA ,  Kenji YOSHIHARA ,  Atsuo SOMA ,  Hiroyuki ABE

IPC: B60W40/12 ,  B60W40/105

Abstract: A physical quantity detecting device (10) detects a plurality of different physical quantities on the basis of an output signal waveform. A strain sensor (3) as one sensor element outputs a sensor signal waveform (15) having a reference level (151), a positive level positively changing from the reference level (151), and a negative level negatively changing from the reference level (151). An estimating unit (4) estimates a first physical quantity corresponding to a peak value (152) of the positive level and a second physical quantity corresponding to a peak value (153) of the negative level on the basis of the sensor signal waveform (15) output by the strain sensor (3).

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.