公开(公告)号：US12196146B2

公开(公告)日：2025-01-14

申请号：US18281996

申请日：2022-01-25

Applicant: Hitachi Astemo, Ltd.

Inventor： Fumihiro Itaba ,  Osamu Mukaihara

IPC: F02D41/20 ,  F02D41/30 ,  F02M51/06

Abstract: An object of the present invention is to provide a fuel injection control device capable of improving the execution frequency and accuracy of individual difference detection of a plurality of fuel injection valves. Therefore, the fuel injection control device 127 is configured to measure, as a valve closing time, a time from when energization of the solenoid 407 is finished to when the valve body 402 moves to the valve closing position for each of the plurality of fuel injection valves 105; divide an energization time of the solenoid 407 into a plurality of sections 1001 to 1004; calculate, as an average valve closing time, an average value of the valve closing times measured a plurality of times, in each of the plurality of sections 1001 to 1004; calculate a specific valve closing time based on the average valve closing time of at least one section among the plurality of sections 1001 to 1004; and correct the energization time according to the specific valve closing time of each of the plurality of fuel injection valves 105.

公开(公告)号：US20250015690A1

公开(公告)日：2025-01-09

申请号：US18888257

申请日：2024-09-18

Applicant: HITACHI ASTEMO, LTD. ,  HIRATA CORPORATION

Inventor： Akira TOBA ,  Yasuhiko KIMURA ,  Osamu FUJITA ,  Yoshitaka MOTODA

IPC: H02K15/085

Abstract: A holder for positioning ends of coil conductors constituting a coil of a stator, wherein the ends of the coil conductors protrude in an axial direction and are arranged in the circumferential direction so as to form a row in the radial direction, comprises positioning members each configured to rotate about the radial direction as a rotation axis to bring a section of a positioning portion extending to the one side in contact with the ends forming the rows on one side in the circumferential direction, bring a section of the positioning portion extending to another side in contact with the ends forming the rows on another side, and thereby position the ends forming the rows together with the positioning portion of another adjacent positioning member.

公开(公告)号：US20250012610A1

公开(公告)日：2025-01-09

申请号：US18711164

申请日：2021-11-30

Applicant: HITACHI ASTEMO, LTD.

Inventor： Nobuaki GORAI ,  Naoki SAITO ,  Akira UENODAN ,  Takahiro MIKI

IPC: G01F1/684

Abstract: A physical quantity detection device (20), which can be disposed in a main flow path (22a) where a measurement target gas (2) flows in one direction, includes: a circuit chamber (135a) that accommodates a circuit board (300); an inflow hole (220) that communicates the main flow path (22a) with the circuit chamber (135a) and allows the measurement target gas (2) flowing through the main flow path (22a) to flow into the circuit chamber (135a); an outflow hole (170) that communicates the main flow path (22a) with the circuit chamber (135a) and allows the measurement target gas (2) in the circuit chamber (135a) to flow out to the main flow path (22a); and a sensor (322) disposed in the circuit chamber (135a) to be at least partially located on a path (2a) of the measurement target gas (2) flowing from the inflow hole (220) to the outflow hole (170).

公开(公告)号：US20250010967A1

公开(公告)日：2025-01-09

申请号：US18743831

申请日：2024-06-14

Applicant: Hitachi Astemo, Ltd.

Inventor： Ryo HASHIMOTO ,  Yohei HAMA

IPC: B63H25/02

Abstract: A watercraft steering device includes: a steering rotatably provided on a hull; a helm mechanism configured to convert a rotational operation of the steering into a linear motion and adjust a traveling direction of the hull; and an electric assist device configured to generate a torque depending on a rotation amount of the steering. The electric assist device is couplable to the helm mechanism, and the electric assist device includes: a coupling shaft portion that is coupled to a helm shaft portion that is a rotation shaft of the helm mechanism; an electric motor that generates a torque by being energized and transmits the generated torque to the coupling shaft portion; and a control device that controls the electric motor to generate a predetermined torque based on a magnitude of the torque generated by rotation of the steering.

公开(公告)号：US12188533B2

公开(公告)日：2025-01-07

申请号：US17785101

申请日：2020-12-10

Applicant: Hitachi Astemo, Ltd.

Inventor： Khai Piau Lim ,  Shinji Suzuki

IPC: F16D55/226 ,  F16D65/00 ,  F16D55/00

Abstract: This disc brake includes a mounting member, a pair of brake pads, a caliper, a cover member, and a locking member. The caliper includes a cylinder part having a cylinder hole in which a piston for moving one of the pair of brake pads is disposed, a bridge part extending across an outer circumferential surface of a disc from the cylinder part, a plurality of claw parts formed on an extended distal end side of the bridge part and disposed to face the cylinder part, and a recessed part provided between the plurality of claw parts, having an opening at a disc radial direction inner end, and formed to face the cylinder hole. The locking member includes a fixing part fixed to the cover member, and a plurality of locking pieces extending from the fixing part in a direction inclined with respect to a movement direction of the piston.

公开(公告)号：US12187310B2

公开(公告)日：2025-01-07

申请号：US17435909

申请日：2020-04-30

Applicant: HITACHI ASTEMO, LTD.

Inventor： Yuki Okuhara

IPC: B60W50/16 ,  B60W10/04 ,  B60W10/18 ,  B60W10/20 ,  B60W30/09 ,  B60W60/00 ,  B60W50/14

Abstract: A vehicle control controller is configured to acquire information on an obstacle in front of a vehicle acquired by an external world recognition device, and to output, based on the acquired obstacle position and own vehicle position, a first notification command for controlling a notification unit so as to give to a driver a notification for urging the driver to avoid touching a steering wheel when transitioning to an autonomous emergency avoidance steering mode for avoiding the obstacle based on control by an electric power steering device.

公开(公告)号：US12187204B2

公开(公告)日：2025-01-07

申请号：US17921550

申请日：2021-01-22

Applicant: Hitachi Astemo, Ltd.

Inventor： Kenji Kogo ,  Koji Maeda

IPC: B60R16/023 ,  H04B3/54

Abstract: As the level of autonomous driving of an automobile is improved, traveling in a system without a driver is required, and high reliability of the system is essential. One method for achieving high reliability is redundancy of a power supply. To construct a redundant power supply network, a redundant power supply network is required in addition to a main power supply network, and the number of wires of the network increases. In addition, since a cable having a thick core wire is used as a power supply wiring in order to handle a large current, the weight of the cable becomes heavy, which leads to fuel consumption degradation of the vehicle. An electronic control device 11-B receives power fed from a power storage unit 12-A via another electronic control device 11-A, as a redundant power supply redundant to a power superimposition data wiring 16. That is, the electronic control device 11-B receives power fed or transmitted from both the directly-connected power storage unit 12-B and the indirectly-connected power storage unit 12-A.

公开(公告)号：US20250006566A1

公开(公告)日：2025-01-02

申请号：US18712774

申请日：2022-11-25

Applicant: HITACHI ASTEMO, LTD.

Inventor： Nobutake TSUYUNO ,  Akira MIMA ,  Yujiro KANEKO ,  Eiichi IDE

IPC: H01L23/051 ,  H01L21/56 ,  H01L23/31 ,  H01L23/473 ,  H01L23/64 ,  H01L25/07 ,  H01L25/18 ,  H02M7/00

Abstract: A semiconductor module includes: a plurality of power semiconductor elements arranged in parallel to each other; a first conductor plate and a second conductor plate respectively bonded to an upper surface and a lower surface of the power semiconductor elements arranged in parallel to each other; a wiring substrate provided on the second conductor plate; and an electronic component mounted on the wiring substrate, the power semiconductor elements, the first conductor plate, the second conductor plate, the wiring substrate, and the electronic component being sealed with a sealing member. The first conductor plate positioned on the upper surface side of the wiring substrate has at least one of a recess and a through hole in a region facing with the electronic component on the wiring substrate.

公开(公告)号：US12181306B2

公开(公告)日：2024-12-31

申请号：US17626568

申请日：2020-07-17

Applicant: Hitachi Astemo, Ltd.

Inventor： Motomune Suzuki ,  Masashi Seimiya

IPC: G01C21/00 ,  G01C21/34 ,  G01C21/36 ,  B60W60/00

Abstract: An object is to reduce the data size of surrounding environment information to be stored. A vehicle control device that includes a processor, a first storage unit, and a second storage unit, and stores route information to a target point, the vehicle control device including: an input device that acquires route information of a vehicle and surrounding environment information around the vehicle; and a short-term storage information processing unit that stores the route information and the surrounding environment information acquired while the vehicle is traveling into the first storage unit as short-term storage information, in which the short-term storage information processing unit calculates a feature degree of the surrounding environment information when storing the route information, and temporarily stores the surrounding environment information in which the feature degree is equal to or greater than a predetermined value into the first storage unit as the short-term storage information.

公开(公告)号：US12179835B2

公开(公告)日：2024-12-31

申请号：US17435950

申请日：2020-04-30

Applicant: Hitachi Astemo, Ltd.

Inventor： Jian Wang ,  Taku Takahama

IPC: B62D12/02 ,  B60D1/62 ,  B62D6/00 ,  B62D7/15 ,  B62D13/00 ,  B62D13/06

Abstract: Provided is a vehicle coupling assistance device which is configured to select, in accordance with a physical quantity relating to an angle of a second coupling part of a trailer with respect to a first coupling part of a vehicle, as a steering angle control mode, any one of a first steering angle control mode in which a steering angle of front wheels of the vehicle and a steering angle of rear wheels of the vehicle are controlled to achieve the same steering angle and a second steering angle control mode f in which the steering angle of the front wheels and the steering angle of the rear wheels are controlled to achieve different steering angles, and to output steering angle control commands for executing control in the selected steering angle control mode to a front-wheel steering device and a rear-wheel steering device of the vehicle.