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公开(公告)号：US11585286B2
公开(公告)日：2023-02-21
申请号：US17655667
申请日：2022-03-21
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , DENSO CORPORATION
Inventor： Takafumi Yamada , Hiroyuki Akuzawa , Noboru Kitahara , Takashi Ooga , Taichi Watanabe
Abstract: A data processing method of variable measurement data in an electronic control unit (ECU) is provided. The ECU that processes the data processing method calculates a filtering frequency based on a delay time frequency based on a transmission timing cycle of the measurement data and a processing timing cycle of the measurement data in the ECU, and also based on a pulsation frequency of the measurement data, and removes, from the measurement data, a component of the filtering frequency calculated in the calculation of the filtering frequency.
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公开(公告)号：US10539434B2
公开(公告)日：2020-01-21
申请号：US15572641
申请日：2016-05-19
Applicant: DENSO CORPORATION
Inventor： Takashi Ooga
Abstract: An air flow rate measurement device includes a housing that includes a bypass flow channel, which branches from a main flow channel and then returns to the main flow channel, a flow rate sensor assy that incorporates a flow rate sensor element, which measures a flow rate of air flowing through the bypass flow channel, and a physical quantity sensor assy that incorporates a physical quantity sensor element, which measures a physical quantity of air flowing through the main flow channel. The housing includes a first mount part on which the flow rate sensor assy is mounted, and a second mount part on which the physical quantity sensor assy is mounted. The flow rate sensor assy and the physical quantity sensor assy are attached to the housing from the same direction to be mounted on the first mount part and the second mount part respectively.
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公开(公告)号：US11053877B2
公开(公告)日：2021-07-06
申请号：US16386762
申请日：2019-04-17
Applicant: DENSO CORPORATION
Inventor： Takashi Ooga
Abstract: The present disclosure provides an air flow rate measuring including a casing and a sensor. The casing includes a main-bypass passage that defines an inlet and an outlet, a sub-bypass passage that branches off from the main-bypass passage at a branching area, and a guiding wall that changes, at a position upstream of the branching area, a flow direction of the passing air taken in from the inlet. The inlet and the guiding wall are arranged in an arranging direction along a flow direction of the intake air in the duct. The guiding wall includes an inlet side surface that faces the inlet and is not perpendicular to the arranging direction.
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公开(公告)号：US09927272B2
公开(公告)日：2018-03-27
申请号：US14752170
申请日：2015-06-26
Applicant: DENSO CORPORATION
Inventor： Takashi Ooga
CPC classification number: G01F1/692 , G01F1/6842 , G01F5/00 , G01F15/12
Abstract: An air flow meter has a housing, a flow rate sensor, and a physical-quantity measuring sensor. The housing therein defines a bypass passage into which a part of air flowing in a duct flows. The flow rate sensor is disposed in the bypass passage. The physical-quantity measuring sensor measures a physical quantity of air flowing in the duct and is disposed separately from the flow rate sensor. The housing has a recessed portion that is recessed from an inner wall surface of the bypass passage and that has a blind-passage shape. The physical-quantity measuring sensor is disposed in the recessed portion.
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公开(公告)号：US11111887B2
公开(公告)日：2021-09-07
申请号：US16512831
申请日：2019-07-16
Applicant: DENSO CORPORATION
Inventor： Noboru Kitahara , Hajime Mashita , Takashi Ooga , Teruaki Kaifu
Abstract: A temperature sensor differs from a relative humidity sensor in responsiveness when the temperature of air changes. An absolute humidity acquisition unit acquires absolute humidity of air from outputs from the temperature sensor and the relative humidity sensor. A delay adjustment unit is to delay an output from one of the temperature sensor and the relative humidity sensor, which is a high response sensor having a higher responsiveness, and to reconcile change-behaviors of the output from the temperature sensor and the output from the relative humidity sensor in response to a temperature change in air. The absolute humidity acquisition unit acquires the absolute humidity based on the output from the other of the temperature sensor and the relative humidity sensor, which is a low response sensor having a lower responsiveness, and the sensor signal, which is from the high response sensor and delayed in the delay adjustment unit.
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Patent Agency Ranking
公开(公告)号：US20190338737A1
公开(公告)日：2019-11-07
申请号：US16512797
申请日：2019-07-16
Applicant: DENSO CORPORATION
Inventor： Noboru Kitahara , Hajime Mashita , Takashi Ooga , Teruaki Kaifu
Abstract: A temperature sensor and a relative humidity sensor are placed in an environment allowing air to flow and are displaced in an upstream-downstream direction of the airflow. An absolute humidity acquisition unit acquires absolute humidity of air from outputs from the temperature sensor and the relative humidity sensor. A delay adjustment unit delays an output from one of the temperature sensor and the relative humidity sensor placed upstream and to reconcile change-behaviors of outputs from the temperature sensor and the relative humidity sensor in response to a state change in air. The absolute humidity acquisition unit acquires the absolute humidity based on the output from the other of the temperature sensor and the relative humidity sensor placed downstream and an output acquired from the one sensor placed upstream and delayed in the delay adjustment unit.
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公开(公告)号：US09759593B2
公开(公告)日：2017-09-12
申请号：US14730525
申请日：2015-06-04
Applicant: DENSO CORPORATION
Inventor： Yasushi Goka , Takashi Ooga , Akiyuki Sudou , Junzo Yamaguchi
CPC classification number: G01F5/00 , G01F1/6842 , G01F15/00 , G01N27/223 , G01N33/00
Abstract: An airflow-rate detecting device capable of detecting humidity has a housing, a flow rate sensor, a humidity sensor, a humidity sensor case, and a dust separating portion. The housing therein defines a bypass passage into which a part of air flowing in a duct flows. The flow rate sensor is disposed in the bypass passage. The humidity sensor detects a humidity of air flowing in the duct at an outside of the housing. The humidity sensor case houses the humidity sensor and therein defines an interior space into which a part of air flowing in the duct flows as a target air of which humidity is detected by the humidity sensor. The dust separating portion removes dust from the target air before the target air flows into the interior space.
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公开(公告)号：US10519886B2
公开(公告)日：2019-12-31
申请号：US15488624
申请日：2017-04-17
Applicant: DENSO CORPORATION
Inventor： Takashi Ooga
Abstract: The present disclosure provides an air flow rate measuring including a casing and a sensor. The casing includes a main-bypass passage that defines an inlet and an outlet, a sub-bypass passage that branches off from the main-bypass passage at a branching area, and a guiding wall that changes, at a position upstream of the branching area, a flow direction of the passing air taken in from the inlet. The inlet and the guiding wall are arranged in an arranging direction along a flow direction of the intake air in the duct. The guiding wall includes an inlet side surface that faces the inlet and is not perpendicular to the arranging direction.
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公开(公告)号：US09140197B2
公开(公告)日：2015-09-22
申请号：US14247515
申请日：2014-04-08
Applicant: DENSO CORPORATION
Inventor： Shinya Nakata , Kazuhiro Sasao , Takashi Ooga , Takehiro Tanaka , Kosei Takagi , Yuusuke Yasuki , Shuhei Oe
CPC classification number: F02D13/02 , F01L1/3442 , F01L31/06 , F01L2001/34423 , F01L2001/34426 , F01L2001/34453 , F01L2013/116 , Y02T10/18
Abstract: A valve timing control apparatus includes a temperature sensing member which expands at a main lock phase when a temperature of an engine is higher than or equal to a predetermined temperature so as to prohibit a main lock component from moving out of a main lock hole to a guide slot. The temperature sensing member shrinks at the main lock phase when the temperature of the engine is lower than the predetermined temperature so as to allow the main lock component to move out of the main lock hole toward the guide slot.
Abstract translation: 气门正时控制装置包括温度检测构件，其在发动机的温度高于或等于预定温度时在主锁定阶段膨胀，以便禁止主锁定部件从主锁孔移出到 导槽 当发动机的温度低于预定温度时，温度感测部件在主锁定阶段收缩，从而允许主锁定部件朝向引导槽移出主锁定孔。
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公开(公告)号：US11125193B2
公开(公告)日：2021-09-21
申请号：US16512797
申请日：2019-07-16
Applicant: DENSO CORPORATION
Inventor： Noboru Kitahara , Hajime Mashita , Takashi Ooga , Teruaki Kaifu
Abstract: A temperature sensor and a relative humidity sensor are placed in an environment allowing air to flow and are displaced in an upstream-downstream direction of the airflow. An absolute humidity acquisition unit acquires absolute humidity of air from outputs from the temperature sensor and the relative humidity sensor. A delay adjustment unit delays an output from one of the temperature sensor and the relative humidity sensor placed upstream and to reconcile change-behaviors of outputs from the temperature sensor and the relative humidity sensor in response to a state change in air. The absolute humidity acquisition unit acquires the absolute humidity based on the output from the other of the temperature sensor and the relative humidity sensor placed downstream and an output acquired from the one sensor placed upstream and delayed in the delay adjustment unit.
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