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公开(公告)号：US20190186454A1
公开(公告)日：2019-06-20
申请号：US16309621
申请日：2017-02-28
Applicant: Mitsubishi Electric Corporation
Inventor： Ryota ASAKURA , Tomokazu SAKASHITA , Takahiro INOUE
Abstract: A barrier-discharge-type ignition apparatus that can accurately determine the application voltage, of a barrier ignition plug, that causes a non-ignition discharge to occur. In the barrier-discharge-type ignition apparatus, in a combustion assist control, the voltage difference between the one-period-prior application voltage and the present-period application voltage in the AC period is calculated based on an application voltage detected by a voltage detection circuit; then, it is determined whether or not a discharge exists in the barrier ignition plug, based on the comparison between the voltage difference and a preliminarily set discharge determination threshold value.
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公开(公告)号：US20200271084A1
公开(公告)日：2020-08-27
申请号：US16646151
申请日：2018-05-24
Applicant: Mitsubishi Electric Corporation
Inventor： Takahiro INOUE , Taichiro TAMIDA , Ryota ASAKURA , Tomokazu SAKASHITA , Takashi HASHIMOTO
Abstract: An ignition device according to the present invention includes: an ignition plug, which includes a first electrode, a second electrode, and a dielectric body arranged between the electrodes; an AC power supply configured to generate an AC voltage to be applied between the electrodes; a thermal plasma detection portion configured to output a thermal plasma occurrence signal when thermal plasma has occurred between the electrodes; and an application time period determination portion configured to determine an application time period for the AC voltage during one cycle of the internal combustion engine in advance before the application, and when the thermal plasma occurrence signal is received while the AC voltage is being applied based on the application time period, change the application time period so as to shorten the application time period.
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公开(公告)号：US20170074921A1
公开(公告)日：2017-03-16
申请号：US15180383
申请日：2016-06-13
Applicant: Mitsubishi Electric Corporation
Inventor： Shiori UOTA , Fumitaka TAMETANI , Takahiro INOUE , Rei YONEYAMA
IPC: G01R31/26 , H01L27/06 , H01L29/739 , H01L29/16 , H01L29/861
CPC classification number: G01R31/2642 , G01R31/2608 , G01R31/2632 , G01R31/42 , H01L27/0635 , H01L29/16 , H01L29/1608 , H01L29/7393 , H01L29/861 , H03K17/18
Abstract: A life estimation circuit includes a temperature detector configured to detect temperature of a power element unit, an inflection point detection unit configured to detect an inflection point of temperature variation in the power element unit based on an output signal from the temperature detector, an operation unit configured to determine an absolute value of a difference between the temperature of the power element unit at an inflection point detected this time and the temperature of the power element unit at an inflection point detected last time, a count circuit configured to count the number of times that the absolute value of the difference in temperature has reached a threshold temperature, and a signal generation unit configured to output, when a count value from the count circuit reaches a threshold number of times, an alarm signal indicating that the power element is about to reach the end of its life.
Abstract translation: 寿命估计电路包括：温度检测器，被配置为检测功率元件单元的温度;拐点检测单元，被配置为基于来自温度检测器的输出信号检测功率元件单元中的温度变化的拐点;操作单元 被配置为确定在此时检测的拐点处的功率元件单元的温度与上次检测到的拐点处的功率单元的温度之间的差的绝对值，配置为计数次数的计数电路 温度差的绝对值达到阈值温度，并且信号生成单元被配置为当来自计数电路的计数值达到阈值次数时，输出表示功率元件即将到达的报警信号 到达终身。
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4.发明申请公开(公告)号：US20190078520A1
公开(公告)日：2019-03-14
申请号：US15765632
申请日：2015-12-03
Applicant: MITSUBISHI ELECTRIC CORPORATION
Inventor： Takahiro INOUE , Taichiro TAMIDA , Takashi HASHIMOTO , Noboru WADA , Akira NAKAGAWA , Tomokazu SAKASHITA , Tetsuya HONDA
CPC classification number: F02D19/12 , F02D41/0002 , F02D41/0025 , F02D41/045 , F02D41/10 , F02D2200/0406 , F02D2200/0414 , F02D2200/0418 , F02D2200/1002 , F02D2250/21 , F02M25/10 , Y02T10/42
Abstract: A change amount per unit time of an engine output command for controlling engine output of an internal combustion engine is calculated as an engine output increasing rate, and a power supply device is controlled so that power corresponding to the calculated engine output increasing rate is supplied to a combustion promoter generation device. The combustion promoter generation device generates a combustion promoter through the power supplied from the power supply device to supply the combustion promoter to a combustion chamber of the internal combustion engine, and a generation amount of the combustion promoter increases as the supplied power increases. In this manner, the generation amount of the combustion promoter is adjusted.
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公开(公告)号：US20200274440A1
公开(公告)日：2020-08-27
申请号：US16616777
申请日：2018-04-02
Applicant: Mitsubishi Electric Corporation
Inventor： Ryota ASAKURA , Tomokazu SAKASHITA , Takahiro INOUE
Abstract: In order to provide a power conversion device capable of estimating a load voltage with high accuracy without directly detecting the load voltage to be applied to a load, a control circuit is provided, which includes a means for estimating the load voltage to be applied to the load based on an electric current of a resonant circuit, an AC frequency of an inverter and an electrostatic capacitance of the load, or a means for estimating the load voltage based on the electric current of the resonant circuit, the AC frequency of the inverter, an inductance of a resonant coil and a correction coefficient previously set from a relationship between a voltage of the resonant coil and the load voltage, and which controls an output to a target load voltage based on the estimated load voltage.
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Patent Agency Ranking
公开(公告)号：US20180283323A1
公开(公告)日：2018-10-04
申请号：US15765747
申请日：2016-08-31
Applicant: Mitsubishi Electric Corporation
Inventor： Noboru WADA , Takahiro INOUE , Taichiro TAMIDA , Yasutaka INANAGA , Takashi HASHIMOTO , Koji WADA , Tetsuya HONDA
CPC classification number: F02M25/12 , C01B13/11 , C01B13/115 , C01B2201/12 , C01B2201/22 , C01B2201/32 , C01B2201/62 , C01B2201/70 , F02B51/04 , F02D9/02 , F02D2009/0283 , F02M25/00 , F02M26/05 , F02M27/04 , Y02T10/121 , Y02T10/126
Abstract: An ozone generator and an internal combustion engine with the ozone generator that can raise ozone additive rate of whole intake air, while suppressing pressure loss in the intake pipe from increasing. The internal combustion engine with an ozone generator includes a tubular intake pipe, through an inner region of which air flows, an ozone generator having an electrode plate that makes ozone and is disposed in the inner region or in the intake pipe, and a limiter that limits the flow of air in the inner region of the intake pipe; the electrode plate has a planar dielectric and high-voltage-side and low-voltage-side electrodes adhered and fixed to the dielectric and is formed in a shape of a plate extending in a direction in which air flows.
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公开(公告)号：US20200083882A1
公开(公告)日：2020-03-12
申请号：US16415643
申请日：2019-05-17
Applicant: Mitsubishi Electric Corporation
Inventor： Keisuke EGUCHI , Takahiro INOUE , Rei YONEYAMA , Shiori UOTA , Haruhiko MURAKAMI
IPC: H03K17/567 , H01L25/16 , H01L25/18 , H01L25/07 , H03K17/687
Abstract: First and second switching regions include first and second gate electrodes respectively. Channel currents of the first and second switching regions are controlled according to electric charge amounts supplied by control signals input to the first and second gate electrodes respectively. The second switching region is connected in parallel with the first switching region. A control section outputs a first control signal for turning-on the first switching region to the first gate electrode and a second control signal for turning-on the second switching region to the second gate electrode. The control section stops outputting the second control signal after a first predetermined period elapses from a start of outputting the first and second control signals, and outputs the second control signal after a second predetermined period elapses from a stop of outputting the second control signal.
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公开(公告)号：US20190227020A1
公开(公告)日：2019-07-25
申请号：US16309532
申请日：2017-06-08
Applicant: Mitsubishi Electric Corporation
Inventor： Taichiro TAMIDA , Takahiro INOUE , Takashi HASHIMOTO , AKIHIKO IWATA , Shuhei KOYAMA , Takahiko KOBAYASHI
Abstract: Provided is an electrostatic capacitance detection device including: an electrode pair including a pair of electrodes, the electrode pair being arranged inside a compressor configured to compress refrigerant; a capacitor being connected in series to the electrode pair; an inverter having one of power lines connected to one end of series-connected electrode pair and capacitor, and is configured to drive the compressor, the power lines being used for driving the compressor; and a voltage detecting unit configured to measure a voltage between the pair of electrodes of the electrode pair.
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公开(公告)号：US20180301877A1
公开(公告)日：2018-10-18
申请号：US15769120
申请日：2016-10-07
Applicant: Mitsubishi Electric Corporation , NGK SPARK PLUG CO., LTD.
Inventor： Taichiro TAMIDA , Takahiro INOUE , Takashi HASHIMOTO , Akira NAKAGAWA , Tomokazu SAKASHITA , Takayoshi NAGAI , Kimihiko TANAYA , Hiroyuki KAMEDA , Yuichi YAMADA , Kenji BAN
CPC classification number: H01T13/32 , F02B23/08 , F02P3/01 , F02P5/145 , F02P13/00 , F02P15/10 , F02P23/04 , H01T13/34 , H01T13/467 , H01T13/50 , H01T13/52 , H01T13/54 , H01T19/04 , H05H1/2406 , H05H2001/2412 , H05H2001/2418
Abstract: In an ignition plug, since a ground electrode is formed in a thin-rod-shape or a mesh-like shape, sufficiently strong radicals are locally generated by a barrier discharge, an anti-inflammation effect by the electrode is small, and the growth of a flame is hardly hindered. Furthermore, by making the thickness dimension of a second dielectric facing a discharge region uniform, the barrier discharge is spread over the surface of the second dielectric, the generation of the radicals is maintained, and combustibility after ignition is promoted. Furthermore, because an end portion of a high voltage electrode and a ground electrode are disposed to face each other within a combustion chamber, a fuel gas introduced into the combustion chamber is liable to flow into the discharge region, and is easily ignited by the radicals generated due to the discharge.
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公开(公告)号：US20170278811A1
公开(公告)日：2017-09-28
申请号：US15509126
申请日：2015-08-19
Applicant: Mitsubishi Electric Corporation
Inventor： Kenichi SUGA , Takao TSURIMOTO , Hiroki SHIOTA , Kenichi MOROKUMA , Shoichi ORITA , Fumitaka TAMETANI , Takahiro INOUE , Shiori UOTA
CPC classification number: H01L24/03 , G11C11/34 , H01F27/2804 , H01F27/32 , H01F2027/2809 , H01L23/3738 , H01L23/62 , H01L23/645 , H01L25/162 , H01L25/18 , H04L1/0006 , H05K7/1432
Abstract: A signal transmission insulating device includes: a first coil; a second coil opposing the first coil to form a transformer together with the first coil; a first insulating film provided between the opposing first coil and second coil and made of a first dielectric material; a second insulating film surrounding the first coil and made of a second dielectric material having a lower resistivity or a higher permittivity than the first dielectric material; and a third insulating film surrounding the second coil and made of a third dielectric material having a lower resistivity or a higher permittivity than the first dielectric material.
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