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公开(公告)号：US10411609B2
公开(公告)日：2019-09-10
申请号：US16207245
申请日：2018-12-03
Inventor： Junichi Yukawa , Yoshihiko Maeda , Satoshi Okawa
IPC: H02M7/00 , H02M3/335 , H03K17/687 , H03K17/0412 , H02M3/156
Abstract: The present disclosure reduces heat concentration on switching elements. A plurality of high-side transistors are connected in parallel to constitute high-side switching element. A plurality of low-side transistors are connected in parallel to constitute low-side switching element. The plurality of high-side transistors are arranged, one by one, next to the plurality of low-side transistors.
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公开(公告)号：US11695324B2
公开(公告)日：2023-07-04
申请号：US17404229
申请日：2021-08-17
Inventor： Junichi Yukawa , Zenyou Tei , Hiroyuki Handa , Hideki Nakata
Abstract: A power converter according to the present disclosure includes a cooling plate and a plurality of circuit elements. The cooling plate includes a first cooling surface and a second cooling surface on an opposite side from the first cooling surface. The cooling plate is provided with a through hole passing through between the first and second cooling surfaces. The circuit elements convert AC power supplied from an external power source into DC power of a certain voltage and output the DC power. The circuit elements at least include first and second circuit elements. The first circuit element includes a first terminal and is thermally connected to the first cooling surface. The second circuit element includes a second terminal electrically connected to the first terminal and inserted into the through hole, and is thermally connected to the second cooling surface.
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公开(公告)号：US10046753B2
公开(公告)日：2018-08-14
申请号：US15032657
申请日：2015-01-13
Inventor： Junichi Yukawa
IPC: B60W20/10 , B60K6/50 , B60K6/26 , B60W10/02 , B60K6/387 , B60W10/08 , B60W10/06 , B60K6/442 , B60K6/383 , B60K6/48 , B60K6/547 , B60L7/14 , B60L11/14 , B60L15/20 , B60W20/40 , B60W20/00 , B60W30/18
Abstract: A vehicle hybrid system includes a transmission mechanically coupled with an engine, a drive shaft mechanically coupled with the transmission, a rotation-transmitting part coupled with the drive shaft, a power connecting-disconnecting part coupled with the drive shaft via the rotation-transmitting part, a motor generator mechanically coupled with the power connecting-disconnecting part, and a directional power transmission part for transmitting power in a direction from the motor generator to the engine to drive the engine and for not transmitting power in a direction from the engine to the motor generator to drive the motor generator. This vehicle hybrid system has high efficiency.
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公开(公告)号：US11260874B2
公开(公告)日：2022-03-01
申请号：US17004796
申请日：2020-08-27
Inventor： Akira Masuo , Junichi Yukawa , Kenji Sugihara
Abstract: An acquisition unit acquires at least one of first information and second information. A notification unit provides warning information to the driver, the warning information being generated based on at least one of the first information and the second information acquired and indicating a possibility of an increase in an insurance premium of an insurance applied to the driver. An reception unit receives acceptance of the provided warning information from the driver. A processor determines to transmit the acceptance by the driver of the possibility of an increase in the insurance premium to an insurance company server when the acceptance is received and determines to transmit at least one of the first information and the second information to the insurance company server when acceptance is not received.
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公开(公告)号：US09776625B2
公开(公告)日：2017-10-03
申请号：US15115238
申请日：2015-02-18
Inventor： Junichi Yukawa
IPC: B60L9/00 , B60L11/00 , G05D3/00 , G05D1/00 , G06F7/00 , G06F17/00 , B60W20/19 , B60K6/24 , B60K6/48 , B60L11/14 , B60W10/02 , F02D23/00 , B60K6/26 , B60W10/06 , B60W10/08 , B60W10/30 , B60W30/18 , B60W20/00 , F02B37/04 , F02B39/10 , F02B33/00
CPC classification number: B60W20/19 , B60K6/24 , B60K6/26 , B60K6/48 , B60K6/485 , B60K2006/4808 , B60K2006/4825 , B60L11/14 , B60W10/02 , B60W10/06 , B60W10/08 , B60W10/30 , B60W20/00 , B60W30/18127 , B60Y2200/92 , B60Y2300/43 , B60Y2300/51 , B60Y2300/91 , F02B33/00 , F02B37/04 , F02B39/10 , F02D23/00 , F02D29/02 , F02D41/0007 , F02N11/04 , Y02T10/144 , Y02T10/6221 , Y02T10/6226 , Y02T10/6252 , Y02T10/626 , Y02T10/6286 , Y02T10/6295 , Y02T10/7077 , Y10S903/93
Abstract: A vehicle drive device includes an engine configured to be mounted to a vehicle, a drive shaft mechanically connected to the engine as to drive the vehicle, a first power connecting-disconnecting unit connected to one of the drive shaft and the engine, a motor generator mechanically connected to the one of the drive shaft and the engine via the first power connecting-disconnecting unit, a second power connecting-disconnecting unit connected to the motor generator, and a supercharger mechanically connected to the motor generator via the second power connecting-disconnecting unit. The vehicle drive device can retrieve regenerative electric power efficiently.
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Patent Agency Ranking
公开(公告)号：US11338822B2
公开(公告)日：2022-05-24
申请号：US16596307
申请日：2019-10-08
Inventor： Junichi Yukawa , Kenji Sugihara
Abstract: A vehicle and a stop switch apparatus capable of accommodating various unexpected situations in a software operable vehicle. The vehicle is provided with a first operation section that allows operation of the vehicle without software, a second operation section capable of operating the vehicle by using software, a communicator that communicates with an external apparatus, and a stop switch that is provided physically and operable to stop operation of the second operation section without software.
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公开(公告)号：US11095237B2
公开(公告)日：2021-08-17
申请号：US16703254
申请日：2019-12-04
Inventor： Junichi Yukawa , Naoya Iwasaki , Hisazumi Watanabe , Yoshihiko Maeda
Abstract: A vehicle driving apparatus includes an inverter which drives a permanent magnet motor. The inverter includes a three-phase bridge circuit including a plurality of switch elements, a drive circuit connected to the three-phase bridge circuit, a control circuit connected to the drive circuit, and an abnormality detecting unit which detects abnormality of the inverter. The drive circuit includes a three-phase-short-circuit-forming circuit which causes three phases of the permanent magnet motor to form short circuits, an abnormality accepting terminal which accepts an abnormality signal output from the abnormality detecting unit, and a check terminal which accepts an active check signal for causing the three-phase-short-circuit-forming circuit to perform three-phase short circuit control.
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公开(公告)号：US10418726B2
公开(公告)日：2019-09-17
申请号：US16084000
申请日：2016-10-13
Inventor： Junichi Yukawa , Tatehiko Inoue
Abstract: A bus bar connection structure includes a housing, a circuit board including metal, and a bus bar that are disposed in order from a lower side, a lower nut including metal and disposed in an upper surface-side of the housing in a state in which the lower nut is embedded in the housing, and a bolt including metal. On an upper surface of the circuit board, an insulation layer and a copper foil pattern are formed in order from a lower side. An insulation paper piece is disposed between the lower nut and the circuit board. The bolt is screwed into the lower nut in a state in which the bolt is inserted through the insulation paper piece, the circuit board, the insulation layer, the copper foil pattern, and the bus bar. A rotation-preventing part is further provided, the rotation-preventing part preventing the insulation paper piece from rotating due to torque generated during fastening of the bolt.
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公开(公告)号：US10994596B2
公开(公告)日：2021-05-04
申请号：US16707275
申请日：2019-12-09
Inventor： Junichi Yukawa
Abstract: A vehicle driving device includes a permanent magnet motor, an inverter that drives the permanent magnet motor, a DC-to-DC converter that is a buck-boost converter and connected to the inverter, and a driving battery that is connected to the DC-to-DC converter. The DC-to-DC converter outputs, to the inverter, (i) a voltage inputted to the DC-to-DC converter of a positive electrode of the driving battery as-is and (ii) a voltage inputted to the DC-to-DC converter of a negative electrode of the driving battery after increasing the voltage in a negative direction.
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公开(公告)号：US20200262288A1
公开(公告)日：2020-08-20
申请号：US16707275
申请日：2019-12-09
Inventor： Junichi Yukawa
Abstract: A vehicle driving device includes a permanent magnet motor, an inverter that drives the permanent magnet motor, a DC-to-DC converter that is a buck-boost converter and connected to the inverter, and a driving battery that is connected to the DC-to-DC converter. The DC-to-DC converter outputs, to the inverter, (i) a voltage inputted to the DC-to-DC converter of a positive electrode of the driving battery as-is and (ii) a voltage inputted to the DC-to-DC converter of a negative electrode of the driving battery after increasing the voltage in a negative direction.
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