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公开(公告)号：US12199526B2
公开(公告)日：2025-01-14
申请号：US17927217
申请日：2021-02-05
Applicant: HITACHI ASTEMO, LTD.
Inventor： Shinichirou Wada , Tomohiko Yano , Yoichiro Kobayashi
IPC: H02M1/08 , H01L29/78 , H02M1/00 , H02M1/088 , H02M7/5387
Abstract: Provided is a power conversion device capable of observing a chip temperature with high accuracy without increasing a cost of the power conversion device mounted with a current sense element for observing a main current of a power device. A main control MOSFET 11, a current MOSFET 12, and a diode 13 connected to a source electrode 8 of the main control MOSFET 11 and a source electrode 9 of the current MOSFET 12 are mounted in a chip of a power device, a temperature measurement circuit 3 is connected to the source electrode 9 of the current MOSFET 12, and when the main control MOSFET 11 is in an off state, a forward current (If) is caused to flow through the diode 13, and an anode potential is observed to measure the chip temperature.
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公开(公告)号：US12196143B2
公开(公告)日：2025-01-14
申请号：US17922814
申请日：2021-02-02
Applicant: Hitachi Astemo, Ltd.
Inventor： Hiroshi Nakano , Nobuyasu Kanekawa , Atsushi Arata
Abstract: A vehicle controller includes a plurality of detectors, a control unit, a data collecting unit, a serial communication line, and a transmission order setting unit. Data that changes at a speed that is lower than a given speed value is transmitted in a period in which a communication volume is lower than a given communication volume value. The transmission order is an order in which the pieces of detection data are serially transmitted from the data collecting unit to the control unit.
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公开(公告)号：US12195034B2
公开(公告)日：2025-01-14
申请号：US17615964
申请日：2020-06-01
Applicant: HITACHI ASTEMO, LTD.
Inventor： Daisuke Mashimo , Akihiko Sato , Keisuke Ampo
Abstract: An electronic control device is mounted on a vehicle and executes automatic driving control using a plurality of pieces of map information. Each piece of the map information includes one or more pieces of partial data corresponding to a predetermined geographical area and being information of a predetermined attribute related to a road of the predetermined geographical area. The electronic control device includes a storage unit that stores one or more pieces of the map information, a specification unit that specifies the map information corresponding to a traveling position of the vehicle, and a control unit that determines a control method of the vehicle at a traveling position of the vehicle according to the partial data included in the map information specified by the specification unit.
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公开(公告)号：US20250010679A1
公开(公告)日：2025-01-09
申请号：US18576493
申请日：2022-07-06
Applicant: Hitachi Astemo, Ltd.
Inventor： Atsushi TAGUCHI , Ryusuke HIRAO
IPC: B60G17/015 , B60G17/019
Abstract: An ECU includes a posture stability control portion configured to determine an instruction value for controlling a variable damper according to an input change in a posture of a vehicle, a ride comfort control portion configured to determine an instruction value for controlling the variable damper according to an input sprung vibration of the vehicle, and an instruction value calculation portion configured to determine an instruction value directed to the variable damper based on both the instruction values of the posture stability control portion and the ride comfort control portion. The instruction value calculation portion prioritizes the instruction value of the ride comfort control portion when a value indicating the change in the posture of the vehicle is equal to or larger than a predetermined value and a value indicating a sprung vibration in a sprung resonance frequency band is larger than a predetermined value.
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公开(公告)号：US12187402B2
公开(公告)日：2025-01-07
申请号：US17665721
申请日：2022-02-07
Applicant: Hitachi Astemo, Ltd.
Inventor： Kenichi Kirihara , Norio Kikuchi , Yusuke Amma , Kyohei Fukushi , Akihiro Kogure
Abstract: A ship steering device includes a handle which is mechanically separated from a rudder mechanism, a steering angle detecting unit that detects a steering angle of the handle, a rudder motor that drives the rudder mechanism, and a turn controller that controls, based on a steering characteristics map which associates a basic relation between the steering angle and a turn angle, the rudder motor so as to obtain the turn angle in accordance with the steering angle. The steering characteristics map has a characteristic such that, in a second steering region where the steering angle is larger than the steering angle in a first steering region, a change amount of the turn angle relative to the steering angle is large with respect to the first steering region where the steering angle is set from zero in advance.
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Patent Agency Ranking
公开(公告)号：US12186949B2
公开(公告)日：2025-01-07
申请号：US17175859
申请日：2021-02-15
Applicant: Hitachi Astemo, Ltd.
Inventor： Satoshi Fujinaka , Haruka Yoshioka
Abstract: Provided is a method for manufacturing a rotary power transmission member including a ring-shaped main body part fixed to a rotating shaft, and a ring-shaped gear part formed on an outer circumference part of the main body part to transmit rotational force of the rotating shaft to other members. The method includes gear part molding for injecting a high melting point resin into a first mold to mold the gear part, and main body part molding for injecting a low melting point resin to mold the main body part while the gear part being inserted into a second mold. The first mold includes a runner defined on an inner circumference side of a ring-shaped cavity for molding the gear part, and a gate which communicates the runner with the cavity to supply a resin into the cavity.
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公开(公告)号：US12179733B2
公开(公告)日：2024-12-31
申请号：US18008396
申请日：2021-02-05
Applicant: Hitachi Astemo, Ltd.
Inventor： Ken Inami , Noriyuki Komatsu
Abstract: A travel control device that prevents malfunctioning of an intersection AEB system is provided. The travel control device includes a sensor that detects the front side, and a control unit that controls a brake, based on information from the sensor. When determining that a host vehicle is going to traverse an intersection and make a turn, the control unit carries out control for controlling the brake when the speed of an oncoming vehicle is equal to or higher than a given threshold. When determining that the oncoming vehicle detected by the sensor is going to traverse the intersection and make a turn, the control unit increases the threshold.
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公开(公告)号：US20240416927A1
公开(公告)日：2024-12-19
申请号：US18702944
申请日：2021-10-21
Applicant: HITACHI ASTEMO, LTD.
Inventor： Fumio YUKI , Takeo HOSOKAWA , Kenji YOSHIHARA , Atsuo SOMA , Hiroyuki ABE
IPC: B60W40/12 , B60W40/105
Abstract: A physical quantity detecting device (10) detects a plurality of different physical quantities on the basis of an output signal waveform. A strain sensor (3) as one sensor element outputs a sensor signal waveform (15) having a reference level (151), a positive level positively changing from the reference level (151), and a negative level negatively changing from the reference level (151). An estimating unit (4) estimates a first physical quantity corresponding to a peak value (152) of the positive level and a second physical quantity corresponding to a peak value (153) of the negative level on the basis of the sensor signal waveform (15) output by the strain sensor (3).
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公开(公告)号：US12169137B2
公开(公告)日：2024-12-17
申请号：US17801620
申请日：2020-12-25
Applicant: Hitachi Astemo, Ltd.
Inventor： Binti Haridan Fatin Farhanah , Hiroyuki Abe , Takayuki Yogo , Nozomi Yatsumonji , Mizuki Ijuin
IPC: G01F1/692
Abstract: To provide an airflow amount measuring device capable of accurately measuring a flow amount of air without occurrence of warpage in a thin film portion when an airflow measuring element is mounted on a lead frame to form a resin-sealed package in which the airflow amount measuring element and the lead frame are sealed. A chip package includes a lead frame, an element mounted on the lead frame and having a detection portion, and a structure for sealing the lead frame and the element such that at least the detection portion is exposed. Then, the curvature radius ρ of the exposed portion of the element exposed from the sealing resin member is 2.13 or less.
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公开(公告)号：US20240413746A1
公开(公告)日：2024-12-12
申请号：US18702542
申请日：2022-10-05
Applicant: HITACHI ASTEMO, LTD.
Inventor： Takeshi TOKUYAMA , Masahiro SEO , Takahiro ARAKI , Shigehisa AOYAGI
Abstract: A power conversion device includes a substrate on which DC wiring and AC wiring are formed, and a plurality of circuit bodies that are electrically connected in parallel and have a first terminal and a second terminal each connected to the DC wiring or the AC wiring. The first terminals and the second terminals are adjacent to each other in the circuit bodies and protrude in a same direction, and the plurality of circuit bodies are disposed such that the first terminals and the second terminals are alternately arranged side by side on the substrate.
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