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公开(公告)号：US11313300B2
公开(公告)日：2022-04-26
申请号：US17422625
申请日：2019-12-24
Applicant: Hitachi Astemo, Ltd.
Inventor： Naoki Yoneya , Masayuki Saruwatari
Abstract: The present invention relates to a device and a method for controlling the start of an internal combustion engine, wherein the internal combustion engine is equipped with an ignition device comprising a fuel-fed prechamber to ignite an air-fuel mixture in a main combustion chamber. In order to reduce the emissions of the internal combustion engine during engine start a prechamber heating operations is performed by injecting a predetermined amount of fuel into the prechamber and igniting an air-fuel-mixture therein, while the main fuel injector is deactivated during at least a first engine cycle after engine start request.
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公开(公告)号：US20220104340A1
公开(公告)日：2022-03-31
申请号：US17420978
申请日：2019-11-05
Applicant: HITACHI ASTEMO, LTD.
Inventor： Naoki MORIYAMA
Abstract: An electronic control device includes: a circuit board to which electronic components are mounted; an electrolytic capacitor that is mounted to the circuit board, and includes a bottom facing the circuit board, and includes a pressure reduction mechanism disposed in the bottom and structured to release internal pressure of the electrolytic capacitor; and a housing containing the circuit board. The housing includes a pocket that opens at a position to face the electrolytic capacitor mounted to the circuit board and contains the electrolytic capacitor. The pocket includes in its inner periphery a bottom wall surface and a side wall surface that surround the electrolytic capacitor. The electrolytic capacitor is covered by heat dissipation material filling a space between the pocket and a part of the electrolytic capacitor wherein the part faces the bottom wall surface and the side wall surface of the pocket.
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公开(公告)号：US20220103068A1
公开(公告)日：2022-03-31
申请号：US17397109
申请日：2021-08-09
Applicant: Hitachi Astemo, Ltd.
Inventor： Atsushi OGAWA , Motoaki KATO , Kengo NOMURA
Abstract: There is provided a transformation control device of a transformation chopper circuit that transforms an input by turning on and off a current using a switch and outputs the transformed input. The transformation control device controls at least an ON/OFF state of a main switch by acquiring an output voltage of the transformation chopper circuit in a case where the main switch is in an ON state, the main switch being turned on in a case where energy is accumulated in an inductor.
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公开(公告)号：US20220097796A1
公开(公告)日：2022-03-31
申请号：US17546205
申请日：2021-12-09
Applicant: Hitachi Astemo, Ltd.
Inventor： Daisuke IKEDA
Abstract: A shock absorber includes a first damping force generating portion which is fixed to a first end portion of a cylinder in an axial direction thereof, a second damping force generating portion which is disposed to be movable in the axial direction in the cylinder. The second damping force generating portion includes a first flow path which passes through a piston in the axial direction, the piston partitioning a space inside the cylinder, a first valve which opens and closes the first flow path, a first adjustment unit which adjusts a force required to open the first valve, a second flow path which is located at a different position from the first flow path and passes through the piston in the axial direction, a second valve which opens and closes the second flow path, and a second adjustment unit which adjusts a force required to open the second valve.
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公开(公告)号：US20220097794A1
公开(公告)日：2022-03-31
申请号：US17547130
申请日：2021-12-09
Applicant: Hitachi Astemo, Ltd.
Inventor： Daisuke IKEDA
Abstract: A shock absorber includes a cylinder, a rod, a first damping force generating portion, and a second damping force generation portion. The second damping force generating portion includes a flow path which passes through the piston in the axial direction, a valve which opens and closes an opening portion at the second end portion side of the flow path, and an adjustment unit which adjusts a force required to open the valve from an outer side of the rod.
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Patent Agency Ranking
公开(公告)号：US20220097473A1
公开(公告)日：2022-03-31
申请号：US17425437
申请日：2020-01-08
Applicant: Hitachi Astemo, Ltd.
Inventor： Kentaro KASUYA , Ryusuke HIRAO , Nobuyuki ICHIMARU
IPC: B60G17/0165
Abstract: Provided is a vehicle behavior device including: a variable damper, which is provided between a vehicle body side and a wheel side of a vehicle, and is configured to adjust a force to be generated; a camera device configured to measure a road surface state forward of the vehicle; a future vehicle state estimation unit configured to predict a sprung behavior of the vehicle from a road surface displacement acquired by the camera device and a vehicle speed; and a command value calculation unit configured to obtain a force to be generated by the variable damper based on a predicted value obtained by the future vehicle state estimation unit, and output a command signal.
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公开(公告)号：US20220092395A1
公开(公告)日：2022-03-24
申请号：US17420823
申请日：2019-10-11
Applicant: HITACHI ASTEMO, LTD.
Inventor： Daichi MURATA
IPC: G06N3/063
Abstract: A computing device having input data and a neural network which performs an operation using a weighting factor includes a network analyzing unit which calculates a state of ignition of neurons of the neural network by the input data, and a contracting unit which narrows down candidates for contraction patterns from a plurality of contraction patterns to which a contraction rate of the neural network is set, based on the ignition state of the neurons, and executes the contraction of the neural network, based on the narrowed-down candidates for the contraction patterns to generate a post-contraction neural network.
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公开(公告)号：US20220084330A1
公开(公告)日：2022-03-17
申请号：US17423945
申请日：2020-01-21
Applicant: Hitachi Astemo, Ltd.
Inventor： Tomoyasu SAKAGUCHI , Masashi SEIMIYA , Yoshitaka FUKASAWA
Abstract: A vehicle control device includes a counting unit that counts rotation of wheels by a sensor; and a rotation determination unit that determines the rotation based on a count value of each of the wheels obtained by the counting unit. Based on a movement distance of a vehicle, the movement distance of each of the wheels from rotation detection to the next rotation detection is defined as a rotation detection travel distance of each of the wheels. The rotation determination unit determines a rotation direction of a wheel a second time is a direction opposite to that detected for a first time when rotation detection is not performed even once for a first reference wheel having a rotation detection travel distance equal to or less than a rotation detection travel distance of the first determination target wheel while the rotation of the selected first determination target wheel is detected twice.
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公开(公告)号：US20220082421A1
公开(公告)日：2022-03-17
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
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：US20220080987A1
公开(公告)日：2022-03-17
申请号：US17420045
申请日：2019-12-19
Applicant: Hitachi Astemo, Ltd.
Inventor： Teppei HIROTSU , Nobuyasu KANEKAWA , Atsushi ARATA
IPC: B60W50/02 , B60W50/023 , B60W60/00
Abstract: Provided is a device that prevents a vehicle behavior from being unstable when an operation is continued using a degeneration function at a time of failure of a drive unit command value generation function in an autonomous driving system. A future actuator command value outputted by a main function unit for generating a drive unit command value and a simple actuator command value outputted by the degeneration function of generating a drive unit command value are synthesized using a weighting factor that changes with time.
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