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公开(公告)号：US20230070735A1
公开(公告)日：2023-03-09
申请号：US17798419
申请日：2021-02-09
Applicant: Hitachi Astemo, Ltd.
Inventor： Kosuke KADOKURA
Abstract: A pin portion in which an introduction orifice leading to a back-pressure chamber is formed is disposed along inner peripheries of a main body, a main valve, and a pilot casing. A nut disposed on the pin portion is rotated relative to the pin portion to fasten the main body, the main valve, and the pilot casing together. This eliminates the necessity of machining a tool engagement portion in the pin portion and represses an increase in man-hours.
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公开(公告)号：US20230067661A1
公开(公告)日：2023-03-02
申请号：US17792534
申请日：2021-01-28
Applicant: Hitachi Astemo, Ltd.
Inventor： Naoki YONEYA , Masayuki SARUWATARI , Yoshihito YASUKAWA , Maung Maung AYE
Abstract: The present subject matter relates to a control unit for controlling an internal combustion engine, wherein the internal combustion engine includes at least one cylinder 100, at least one combustion chamber 90 within which a fuel is burned, at least one fuel injector 40, 50, at least one ignition device 60, and an oxygen determination unit 20 configured to determine the content of oxygen in the fuel, wherein the control unit 10 is configured to control the internal combustion engine based on the content of oxygen in the fuel detected by the oxygen determination unit 20.
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公开(公告)号：US20230064063A1
公开(公告)日：2023-03-02
申请号：US17785795
申请日：2020-11-27
Applicant: HITACHI ASTEMO, LTD.
Inventor： Kei SUZUKI , Shun KAWANO
IPC: B23K1/00 , B23K1/20 , H01L23/051 , H01L23/495 , H01L23/00
Abstract: Since the solder 106 temporarily remaining in the first region 301 is in a state of being high in curvature, it is in point contact with the semiconductor element 105 at the vertex of the solder 106. Thereafter, the solder 106 is gradually wetted and spread from the center part to the peripheral part and from the first region 301 to the second region 302 while the semiconductor element 105 is pressed against the solder 106. At this time, since the solder 106 wets and spreads while discharging air, generation of voids can be suppressed.
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公开(公告)号：US20230061807A1
公开(公告)日：2023-03-02
申请号：US17797250
申请日：2021-02-04
Applicant: HITACHI ASTEMO, LTD.
Inventor： Yuki YOSHIDA , Ryusuke HIRAO , Nobuyuki ICHIMARU
IPC: B60G17/0195 , B60G17/016
Abstract: A vehicle control device includes a vertical VSE, a riding comfort control logic, a planar VSE, a steering stability control logic, a command limiting unit, a control command selection unit. The command limiting unit acquires specifications related to a traveling of a vehicle such as, for example, a slip rate and a four-wheel independent braking/driving force control flag through a CAN. The command limiting unit limits a variable range of a damping force generated by a suspension device provided between a vehicle body and wheels of the vehicle based on the specifications related to the traveling of the vehicle to obtain a first command value. The command limiting unit outputs the obtained first command value to the control command selection unit.
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公开(公告)号：US20230061556A1
公开(公告)日：2023-03-02
申请号：US17785794
申请日：2020-11-27
Applicant: HITACHI ASTEMO, LTD.
Inventor： Shoho ISHIKAWA
Abstract: Provided is a power conversion device capable of reducing an influence of an electromagnetic wave on a circuit board. A power conversion device 1 includes a circuit board 2, a power conversion module 3 disposed to face the circuit board 2, a bus bar 4 connected to the power conversion module 3, and a shielding portion 5 that shields an electromagnetic wave. The bus bar 4 extends from one side S1 to an opposite side S2 of the circuit board 2 along a thickness direction Dt of the circuit board 2 through a side edge 21 of the circuit board 2. The shielding portion 5 is disposed between the bus bar 4 and the side edge 21 of the circuit board 2, extends from the one side S1 to the opposite side S2 of the circuit board 2 along the thickness direction Dt of the circuit board 2, and extends to both sides of the bus bar 4 along the side edge 21 of the circuit board 2.
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Patent Agency Ranking
公开(公告)号：US20230054252A1
公开(公告)日：2023-02-23
申请号：US17797000
申请日：2020-12-25
Applicant: Hitachi Astemo, Ltd.
Inventor： Miki HIRAOKA , Yoshio KAWAI
Abstract: An electronic control device includes a board including a heat sink on which a heat generation element is mounted, and a housing that is in contact with the board and dissipates heat of the heat generation element to the outside. A potential of the housing is a ground, and a potential of the heat sink is a non-ground. The board includes a first layer including a first non-ground wiring that is in direct contact with the heat sink, and a second layer including a second ground wiring that is in electrical and thermal contact with the housing. The first non-ground wiring and the second ground wiring overlap each other in plan view from a thickness direction of the board.
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公开(公告)号：US20230047822A1
公开(公告)日：2023-02-16
申请号：US17977955
申请日：2022-10-31
Applicant: HITACHI ASTEMO, LTD.
Inventor： Yasutomo MABE , Kiyokazu NAKANE , Hiromichi KOMAI , Xiaojin ZHU , Toshiyuki MASUDA , Kenichiro ISHIKURA
Abstract: A propeller shaft (1) that is a power transmission shaft has a shaft member (2) as a tubular body made of iron-based metal and a balance weight (3) made of iron-based metal and welded to an outer peripheral surface of this shaft member (2). At least a part of the balance weight (3) of the propeller shaft (1) is covered with a sacrificial metal coating (4) made of sacrificial corrosion prevention material that contains metal whose ionization tendency is higher than that of metal forming the shaft member (2). With this, it is possible to suppress local progression of corrosion at a periphery of the balance weight (3) and improve durability of the propeller shaft (1) .
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公开(公告)号：US20230042441A1
公开(公告)日：2023-02-09
申请号：US17792263
申请日：2021-01-13
Applicant: Hitachi Astemo, Ltd.
Inventor： Haruhiko FUJITA , Daisuke GOTO
IPC: B60W50/029 , B60T13/74 , B60K23/04 , B60T17/18 , F16H48/20 , B60T8/92 , B60T8/88 , B60W10/16 , B60W10/184 , B60W30/18
Abstract: An electrically controlled differential gear is disposed between a right front wheel and a left front wheel of a vehicle. The electrically controlled differential gear includes a clutch mechanism that limits a differential operation of the electrically controlled differential gear. A second ECU (control portion) obtains information as to failure associated with actuation of a right front electric brake mechanism. The second ECU obtains a physical amount relating to a required braking force which is applied to the left front wheel and the right front wheel. The second ECU outputs a differential limiting control command for limiting the differential operation of the electrically controlled differential gear to the clutch mechanism (or more specifically, a differential ECU that controls the clutch mechanism) based on the information as to the failure and the physical amount relating to the required braking force.
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公开(公告)号：US20230035819A1
公开(公告)日：2023-02-02
申请号：US17784485
申请日：2020-11-20
Applicant: Hitachi Astemo, Ltd.
Inventor： Hideyuki KUME , Hidehiro TOYODA
IPC: B60W50/16 , B60W30/12 , B60W40/105 , G06V20/56
Abstract: An object of the present invention is to realize lane deviation warning/control at an intersection, on a multilane road and in an environment where no lane dividing lines are present and GNSS accuracy is low. A driving assistance device includes a recording unit that records a plurality of past traveling positions of a vehicle and position estimation information relating to the past traveling positions, a relative position estimation unit that estimates a relative position of the vehicle from an output of a sensor that detects a surrounding of the vehicle, adds a history of the relative position to the past traveling position, and adds the output of the sensor, which is used to estimate the relative position, to the position estimation information, a position estimation unit that estimates a position of the vehicle with respect to the past traveling positions from the output of the sensor and the position estimation information of the recording unit, and adds a history of the estimated position to the past traveling position, a deviation determination unit that determines deviation from the plurality of past traveling positions by using a distribution of the plurality of past traveling positions, the position of the vehicle with respect to the plurality of past traveling positions, and a predetermined reference value, and a control unit that controls the vehicle to cancel a warning or deviation, when the deviation is determined.
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公开(公告)号：US20230035370A1
公开(公告)日：2023-02-02
申请号：US17783982
申请日：2020-12-07
Applicant: HITACHI ASTEMO, LTD.
Inventor： Shimon KISHIRA , Makoto KOBAYASHI
IPC: H02P23/00
Abstract: A drive device for an electric motor according to the present invention includes a first relay that turns a power supply line on and off leading from a power supply to an electric motor, a resistor provided on a bypass line that bypasses the first relay, a second relay that turns the bypass line on and off, a relay control circuit that outputs a relay control signal common to the first relay and the second relay, and a delay unit that delays the turn-on timing based on the relay control signal of the first relay later than the turn-on timing based on the relay control signal of the second relay. This configuration makes it possible to add a function for suppressing an inrush current without increasing the number of output connectors of a relay control circuit.
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