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公开(公告)号：US20210239500A1
公开(公告)日：2021-08-05
申请号：US17052313
申请日：2019-06-19
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Akira UENODAN , Takahiro MIKI , Tsutomu KONO , Akihiro YAGUCHI
Abstract: To obtain a physical-quantity detection device that reduces a variation in mounting position in a main passage. A physical-quantity detection device 20 of the present invention is inserted into and disposed in a main passage 22, and includes a flange 211 fixed to a seat surface 103 of the main passage 22, and the flange 211 includes a press-fitting portion 281 for positioning with respect to a seat surface 103 side.
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公开(公告)号：US20170268916A1
公开(公告)日：2017-09-21
申请号：US15532170
申请日：2015-11-02
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Takahiro MIKI , Hiroaki HOSHIKA , Takayuki YOGO , Takahiro YAMAMOTO
CPC classification number: G01F1/684 , G01F1/6842 , G01F5/00 , G01F15/14 , G01M15/042
Abstract: To improve measurement stability of a flow rate detection unit in a physical quantity detection device, a periphery of a synthetic resin material is provided with a protruding section protruding to a cover side. A physical quantity detection device includes a housing, a front cover fixed to the housing, a circuit board housed in the housing, a flow rate detection unit that detects, in a sub-path, the flow rate of a gas to be measured by being attached to the circuit board, a connecting wire that electrically connects the flow rate detection unit to the circuit board, and a synthetic resin material that seals a connecting wire-included connection portion between the circuit board and the flow rate detection unit, the front cover having a protruding section covering at least a part of the synthetic resin material by protruding into the sub-path.
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公开(公告)号：US20170248455A1
公开(公告)日：2017-08-31
申请号：US15329873
申请日：2015-06-15
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Takahiro MIKI , Takayuki YOGO , Hiroaki HOSHIKA
CPC classification number: G01F1/6845 , F02M35/1038 , F02M35/10386 , F02M35/10393 , G01F1/684 , G01F1/6842 , G01F1/696 , G01F5/00 , G01N33/0022
Abstract: The purpose of this invention obtain a physical-quantity detection device, the external shape of the housing of which can be reduced in size. Said physical-quantity detection device, which detects a plurality of physical quantities of a gas being measured that flows through a main channel, is characterized by having a housing positioned inside said main channel, a circuit board insert-molded into said housing, and a plurality of detection sensors mounted on both sides of the circuit board.
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公开(公告)号：US20210116279A1
公开(公告)日：2021-04-22
申请号：US17047468
申请日：2019-02-14
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Binti Haridan FATIN FARHANAH , Takayuki YOGO , Noboru TOKUYASU , Akira UENODAN , Takahiro MIKI , Hiroaki HOSHIKA
Abstract: A compact physical quantity detecting device is provided since it is possible to lower the mounting height of a chip package by accommodating the chip package in a notched board. In the physical quantity detecting device of the present invention, a part in a thickness direction of a support body on which a flow rate detection unit and a processing unit are mounted is accommodated in a notch provided in a printed board.
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公开(公告)号：US20180313681A1
公开(公告)日：2018-11-01
申请号：US15534114
申请日：2016-02-26
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Takayuki YOGO , Takahiro MIKI , Hiroaki HOSHIKA , Hiroyuki ABE
CPC classification number: G01F1/684
Abstract: The objective of the present invention is to provide an air flow rate detecting device with which the inflow of air to the reverse surface of a diaphragm is reduced, while stresses acting on a flow rate detecting unit are alleviated and variability in the mounting of the flow rate detecting unit is reduced. This air flow rate measuring device comprises: a flow rate detecting unit including a diaphragm which detects the air flow rate of a gas being measured; a circuit board on which the flow rate detecting unit is mounted; and a housing which accommodates the circuit board. The flow rate detecting unit and the circuit board are secured to one another using a sheet-like adhesive, and are secured in such a way that a surface of the flow rate detecting unit that is perpendicular to the direction of flow is sealed by means of a resilient body, and a surface of the flow rate detecting unit that is parallel to the direction of flow is open.
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Patent Agency Ranking
公开(公告)号：US20170082051A1
公开(公告)日：2017-03-23
申请号：US15126298
申请日：2015-01-07
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Hiroaki HOSHIKA , Takayuki YOGO , Takahiro MIKI , Takeo HOSOKAWA , Yuki ISOYA
CPC classification number: F02D41/182 , F02D37/02 , F02D41/18 , F02D2041/281 , F02D2041/286 , F02D2200/0414 , F02D2200/0418 , G01D3/0365 , G01D21/02 , G01N27/121 , G01N27/223 , G01N27/228 , G01N33/0073
Abstract: To achieve a physical quantity detection device capable of obtaining a desired overall device accuracy without unnecessarily raising the tolerances of detection elements, the present invention is characterized by having a plurality of physical quantity detection units for respectively detecting plurality of physical quantities, a storage unit for storing the error characteristics of individual physical quantity detection units, a physical quantity calculation unit for using at least two physical quantities detected by at least two of the plurality of physical quantity detection units to calculate a separate physical quantity, and an error calculation unit for reading the error characteristics of the plurality of physical quantity detection units from the storage unit and calculating the error of the separate physical quantity.
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公开(公告)号：US20170037819A1
公开(公告)日：2017-02-09
申请号：US15301493
申请日：2015-03-25
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Takeo HOSOKAWA , Hiroaki HOSHIKA , Takayuki YOGO , Takahiro MIKI , Yuki ISOYA
CPC classification number: F02M35/10393 , F02D41/1494 , F02D41/26 , F02D2200/0414 , F02D2200/0418 , F02M35/10268 , G01N25/62 , G01N25/64 , G01N27/00 , G01N33/0016
Abstract: The purpose of the present invention is to reduce a load of preventing dew condensation, and to provide a highly reliable humidity detection device. In order to achieve the purpose, this humidity detection device is provided with: a humidity sensor having a humidity detection unit and a temperature detection unit; a heating resistor that heats the humidity sensor; and a heating control unit that controls a heating temperature of the heating resistor. The humidity detection device is characterized in having a target temperature storage unit that stores target temperatures of the heating resistor, said target temperatures having been determined corresponding to temperatures and humidities.
Abstract translation: 本发明的目的是减少防止结露的负担，并提供高度可靠的湿度检测装置。 为了达到这个目的，该湿度检测装置具有：湿度传感器，其具有湿度检测单元和温度检测单元; 加热电阻器，加热湿度传感器; 以及加热控制单元，其控制加热电阻器的加热温度。 湿度检测装置的特征在于具有存储加热电阻器的目标温度的目标温度存储单元，所述目标温度已经根据温度和湿度确定。
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公开(公告)号：US20210302211A1
公开(公告)日：2021-09-30
申请号：US17057811
申请日：2019-02-13
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Takahiro YAMAMOTO , Tsutomu KONO , Takahiro MIKI , Yuki ISOYA
IPC: G01F1/696
Abstract: It is possible to suppress overcorrection.
A physical quantity detecting device includes: a physical quantity detecting sensor that detects a physical quantity of a measurement target fluid and outputs a detection signal; a compensation amount calculation unit that calculates, by using the detection signal, a lead compensation amount used in lead compensation for the detection signal; and a gain control unit that adjusts the lead compensation amount based on a deviation that is an amount of change in lead compensation amount over time.-
公开(公告)号：US20180188084A1
公开(公告)日：2018-07-05
申请号：US15740452
申请日：2016-08-03
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Takayuki YOGO , Hiroyuki ABE , Hiroaki HOSHIKA , Takahiro MIKI
CPC classification number: G01F1/00 , F02M35/10386 , G01F1/684 , G01F1/6842
Abstract: To prevent a circuit board and circuit board wiring from being damaged at the time of assembling a physical quantity detection device. A physical quantity detection device of the present invention is characterized by having, on a circuit board, a sensor unit wherein a flow rate detection unit is disposed, a circuit unit wherein a circuit element is disposed, and a partitioning wall that partitions the sensor unit and the circuit unit from each other. The physical quantity detection device is also characterized in that an internal layer conductor for electrically connecting the flow rate detection unit and the circuit unit to each other is provided on a circuit board internal layer where the partitioning wall is positioned.
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公开(公告)号：US20170370862A1
公开(公告)日：2017-12-28
申请号：US15539799
申请日：2016-01-04
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Yuki ISOYA , Hiroaki HOSHIKA , Takayuki YOGO , Takahiro MIKI , Takahiro YAMAMOTO
CPC classification number: G01N25/64 , F02D41/042 , F02D41/144 , F02D41/1494 , F02D41/222 , F02D41/2438 , F02D41/2448 , F02D41/2474 , F02D41/28 , F02D2041/285 , F02D2200/0402 , F02D2200/0414 , F02D2200/0418 , F02M35/10393 , Y02T10/40
Abstract: The present invention obtains a humidity measuring device capable of performing self-diagnosis with high reliability. This humidity measuring device 20 has a diagnosis processing unit 25 for performing self-diagnosis by using gas temperatures and gas humidities before and after a gas in an ambient atmosphere to be measured is heat-controlled. The diagnosis processing unit has a diagnosis start determining unit 26 for determining whether the self-diagnosis can be started on the basis of an exchange state in the ambient atmosphere to be measured and the gas temperature and the gas humidity before the gas in the ambient atmosphere to be measured is heat-controlled, and a diagnosis continuation determining unit 28 for determining whether the self-diagnosis can be continued on the basis of the gas temperature and the gas humidity that are heat-controlled during the self-diagnosis.
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