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公开(公告)号：US20240071095A1
公开(公告)日：2024-02-29
申请号：US18269753
申请日：2021-09-13
Applicant: Hitachi Astemo, Ltd.
Inventor： Jyunya IIZUKA , Takashi OKADA
CPC classification number: G06V20/58 , B60W50/0098 , B60W2420/42 , B60W2420/52 , B60W2554/4049
Abstract: Provided is a vehicle control system which selects detection information of a delay time or reliability according to a content of a driving support function and supplies the detection information to a control processing unit. The vehicle control system includes: an externality recognition device which detects a target around a vehicle; an accuracy-prioritized control unit which controls an in-vehicle control target based on integrated information supplied from the externality recognition device; and a response-prioritized control unit which controls an in-vehicle control target based on prompt report information supplied from the externality recognition device, wherein the externality recognition device includes: a first type sensor which detects the target and outputs first detection information; a second type sensor which detects the target and outputs second detection information, the second type sensor having a longer delay time required to output detection information than the first type sensor; a sensor fusion processing unit which generates the integrated information and the prompt report information based on the first detection information and the second detection information; and a controller which generates an activation instruction of the response-prioritized control unit based on the prompt report information.
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公开(公告)号：US11905906B2
公开(公告)日：2024-02-20
申请号：US17297314
申请日：2019-11-19
Applicant: Hitachi Astemo, Ltd.
Inventor： Koichi Tsukio
CPC classification number: F02D41/20 , F02D41/062 , F02D2041/2003 , F02D2041/2051 , F02D2041/2086 , F02D2200/503
Abstract: Provided is a load drive device for controlling a fuel injection device for a vehicle engine and capable of checking an operation of the fuel injection device with high reliability without actually injecting fuel before starting the engine. The load drive device includes: a first switching element that is connected to a high-side of a load; a second switching element that is connected to a low-side of the load; a pre-driver circuit that transmits a drive instruction to the first switching element and the second switching element; and an arithmetic device that transmits a control instruction to the pre-driver circuit, in which a first monitor line and the second monitor line are connected to the arithmetic device, the first monitor line monitoring the drive instruction from the pre-driver circuit to the first switching element before starting an engine, and the second monitor line monitoring the drive instruction from the pre-driver circuit to the second switching element, and the pre-driver circuit has a first control mode in which the first switching element is turned off and the drive instruction is transmitted to the second switching element, and a second control mode in which the second switching element is turned off and the drive instruction is transmitted to the first switching element.
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公开(公告)号：US11904896B2
公开(公告)日：2024-02-20
申请号：US17290835
申请日：2019-11-20
Applicant: HITACHI ASTEMO, LTD.
Inventor： Ryoh Inaba , Toshiharu Sugawara , Hidehiro Toyoda
CPC classification number: B60W60/0016 , B60W40/09 , B60W50/14 , B60W60/0013 , B60W2050/143
Abstract: Provided is a vehicle control device that can ensure riding comfort or safety. A vehicle control device includes a driving plan calculation unit that calculates a drivable area, which is a space in which an own vehicle is safely drivable, based on a driving environment around the own vehicle and a destination of the own vehicle; and a vehicle motion control unit that calculates a target track including a route and a velocity satisfying a predetermined riding comfort condition in the drivable area calculated by the driving plan calculation unit and controls the own vehicle so as to follow the target track.
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公开(公告)号：US11901836B2
公开(公告)日：2024-02-13
申请号：US17405466
申请日：2021-08-18
Applicant: Hitachi Astemo, Ltd.
Inventor： Daiki Kudo , Shogo Tokita , Kohei Nakano
Abstract: A power control unit includes a plurality of power devices, a heat dissipation member disposed to face the power device with an insulating resin member interposed therebetween, and a plurality of plate-shaped bus bars each of which has one end connected to the power device, in which at least one of the plurality of bus bars is erected so that a direction along a plate width is aligned with a direction along a normal line of a surface of the heat dissipation member facing the power device, the power devices are arranged in a row along one direction in a straight line, an input bus bar is disposed on one side of the power device in a direction orthogonal to an arrangement direction of the power device, and an output bus bar is disposed on the other side of the power device in the orthogonal direction.
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公开(公告)号：US20240047231A1
公开(公告)日：2024-02-08
申请号：US18266405
申请日：2021-09-29
Applicant: HITACHI ASTEMO, LTD.
Inventor： Yasuhiro TSUYUKI , Nobutake TSUYUNO , Eiichi IDE , Yujiro KANEKO
IPC: H01L21/56 , H01L23/473 , H01L25/11 , H01L25/18 , H01L23/31
CPC classification number: H01L21/566 , H01L23/473 , H01L25/115 , H01L25/18 , H01L23/3121 , H01L24/32
Abstract: An electric circuit body including a power semiconductor element joined to one surface of a conductor plate; a sheet member including an insulating layer joined to the other surface of the conductor plate; a sealing member that integrally seals the sheet member, the conductor plate, and the power semiconductor element in a state where a surface of the sheet member opposite to a surface joined to the conductor plate is exposed; a cooling member that cools heat of the power semiconductor element; and a heat conduction member provided between the opposite surface of the sheet member and the cooling member, where the heat conduction member is provided over a first projection region facing the conductor plate and a second projection region facing the sealing member, and a thickness of the heat conduction member is thicker in the second projection region than in the first projection region.
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Patent Agency Ranking
公开(公告)号：US20240044949A1
公开(公告)日：2024-02-08
申请号：US18267602
申请日：2021-09-29
Applicant: Hitachi Astemo, Ltd.
Inventor： Toshinari TEZUKA
IPC: G01R19/165 , G01R31/388 , G01R35/00
CPC classification number: G01R19/16542 , G01R31/388 , G01R35/00
Abstract: A voltage detection circuit includes a first buffer circuit and second buffer circuit that output a voltage corresponding to an input voltage, a voltage detection unit that detects an output voltage from the first buffer circuit and an output voltage from the second buffer circuit, a reference voltage output circuit capable of selectively outputting one of a plurality of reference voltages different in voltage value from each other, and a switch circuit connected to the first buffer circuit and second buffer circuit. The switch circuit switches an input voltage to the first buffer circuit, from a first input voltage corresponding to a voltage of a first input terminal connected to a measurement target to the reference voltage outputted from the reference voltage output circuit, and switches an input voltage to the second buffer circuit, from a second input voltage to the reference voltage outputted from the reference voltage output circuit.
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公开(公告)号：US11892333B2
公开(公告)日：2024-02-06
申请号：US17423946
申请日：2020-01-21
Applicant: Hitachi Astemo, Ltd.
Inventor： Masatoshi Ogata , Norio Ishitsuka , Takahiro Miki , Akira Uenodan , Takayuki Yogo
CPC classification number: G01F1/6842 , G01F15/14
Abstract: An object is to improve measurement accuracy of a thermal air flow meter. A flow-rate measuring device comprising: a sensor assembly having a flow-rate detecting element; a circuit board on which the sensor assembly is mounted; and a housing on which the circuit board is mounted, wherein the sensor assembly is mounted on the circuit board such that a detection portion side of the flow-rate detecting element is closer to the housing, and the sensor assembly includes a contact portion in contact with the housing on the detection portion side.
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公开(公告)号：US11891051B2
公开(公告)日：2024-02-06
申请号：US17619091
申请日：2020-06-05
Applicant: Hitachi Astemo, Ltd.
Inventor： Satoshi Matsuda , Masashi Seimiya , Akitoshi Miyazaki
IPC: B60W30/06 , B60W30/045
CPC classification number: B60W30/06 , B60W30/045 , B60W2556/25 , B60W2556/30
Abstract: A parking assist device capable of parking assistance that ensures high accuracy of a parking location is provided. A parking assist device that assists in performing an operation of parking a vehicle includes a parking-allowing location calculation unit that before the vehicle stops at a parking-allowing location, calculates and updates the parking-allowing location a plurality of times, and a parking route calculation unit that calculates a parking route. The parking route calculation unit sets a minimum turning radius for calculating the parking route, based on the amount of a shift between the parking-allowing location not updated and the parking-allowing location having been updated, and calculates the parking route, using the minimum turning radius. The minimum turning radius is set larger than the minimum value of a turning radius unique to the vehicle.
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公开(公告)号：US11888408B2
公开(公告)日：2024-01-30
申请号：US17439044
申请日：2020-01-30
Applicant: Hitachi Astemo, Ltd.
Inventor： Takeshi Seki , Ayumu Hatanaka , Naoya Suto
CPC classification number: H02M7/003 , H01L23/34 , H02M7/537 , H05K7/1432 , H05K7/209
Abstract: A negative-side bus bar 41 includes a capacitor connection portion and first and second negative terminal portions 271 exposed from a resin portion 44 and connected to a DC negative-side terminals 103 of first and second power semiconductor modules 30. A partition portion 252b of a case 252 is provided with a protruding portion 281 that protrudes toward a mold bus bar 40 further than an upper surface 257 of the first and second power semiconductor modules 30 and is thermally coupled to the mold bus bar 40. The projecting portion 281 is disposed between a root portion 275 of an exposed portion where the first negative electrode terminal portion 271 is exposed from the resin portion 44 and a second root portion 275 of an exposed portion where the second negative electrode terminal portion 271 is exposed from the resin portion 44. In this manner, a spatial distance and a creepage distance between the exposed portion from the resin portion of the mold bus bar and the power semiconductor module are made large and the temperature rise of a capacitor is suppressed.
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公开(公告)号：US11886874B2
公开(公告)日：2024-01-30
申请号：US17610251
申请日：2020-04-08
Applicant: HITACHI ASTEMO, LTD.
Inventor： Tadashi Kishimoto , Goichi Ono , Akira Kitayama , Daichi Murata
CPC classification number: G06F9/3001 , G06F7/4991 , G06F7/49947 , G06N3/063
Abstract: An arithmetic operation device causes a convolution arithmetic unit to perform a convolution arithmetic operation between a filter and target data corresponding to a size of the filter in each of a plurality of convolution layers constituting a neural network. The arithmetic operation device includes: a bit reduction unit that reduces a bit string corresponding to a first bit number from a least significant bit of the target data and reduces a bit string corresponding to a second bit number from a least significant bit of a weight that is an element of the filter for each convolution layer; and a bit addition unit that adds a bit string corresponding to a third bit number obtained by adding the first bit number and the second bit number to a least significant bit of a convolution arithmetic operation result output from the convolution arithmetic unit by inputting the target data and the weight after being reduced by the bit reduction unit to the convolution arithmetic unit.
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