公开(公告)号：US20250135830A1

公开(公告)日：2025-05-01

申请号：US18730109

申请日：2023-01-19

Applicant: Hitachi Astemo, Ltd.

Inventor： Yoshifumi KAWASAKI ,  Makoto MATSUURA ,  Ryusuke HIRAO

IPC: B60G17/06 ,  B60G17/0165

Abstract: A controller as a vehicle control apparatus controls a force (a damping force) of a shock absorber. A preview sensor detects road surface displacement information in a traveling direction of a vehicle. A vehicle speed sensor outputs vehicle speed information of the vehicle. The controller records the road surface displacement information into a memory for each predetermined distance by which the vehicle moves based on the vehicle speed information and a sampling time. The controller determines wheel position road surface displacement information corresponding to a position of the wheel based on the road surface displacement information recorded in the memory. The controller outputs an actuator instruction value for causing the shock absorber to perform a predetermined operation according to the wheel position road surface displacement information.

公开(公告)号：US12286970B2

公开(公告)日：2025-04-29

申请号：US18685353

申请日：2022-07-08

Applicant: Hitachi Astemo, Ltd.

Inventor： Daisuke Kato ,  Koji Saga ,  Nobuaki Sogawa

IPC: F04C2/344 ,  F01C21/08 ,  F04C14/22 ,  F04C15/06

Abstract: An oil pump includes: a housing; a pump constituting section; a discharge opening portion; and a suction opening portion which includes a termination end portion including a termination end inner circumference portion, a termination end outer circumference portion provided radially outside the termination end inner circumference portion, and positioned radially outside the cam profile surface, a curved surface portion connecting the termination end inner circumference portion and the termination end outer circumference portion, and a cross portion at which the curved surface portion is crossed with the cam profile surface, and which is positioned at a position at which a radial length of a vane of the plurality of the vanes that confronts the suction opening portion is shorter than a half of an entire length of the vane.

公开(公告)号：US20250129755A1

公开(公告)日：2025-04-24

申请号：US18834871

申请日：2022-04-15

Applicant: Hitachi Astemo, Ltd.

Inventor： Akihiro KOMORI ,  Kunihiko SUZUKI

IPC: F02D41/30 ,  F01N3/20 ,  F01N3/22

Abstract: An internal combustion engine control device integrates an oxygen storage amount stored in a three-way catalyst in a period from an integration start position where combustion gas of an internal combustion engine obtained from an air-fuel ratio of exhaust gas starts to change from lean to rich or from rich to lean to an integration stop position where an oxygen concentration that has increased or decreased from before the integration start position is reversed.

公开(公告)号：US12280795B2

公开(公告)日：2025-04-22

申请号：US17928816

申请日：2021-02-25

Applicant: Hitachi Astemo, Ltd.

Inventor： Takeyuki Tominaga

IPC: B60W60/00 ,  B60W30/18 ,  B60W40/06

Abstract: An object of the present invention is to provide a vehicle control device configured, regardless of the number of travel lanes of a road, to generate a travel route based on a road width of the road or the like, so as to improve a continuous automatic driving system. The present invention provides a vehicle control device configured to perform vehicle control of a self vehicle based on information of a position of the self vehicle, information of a map, and information of a route. The vehicle control device determines, at a specific spot of the route, whether or not a travel lane (311) of the self vehicle has a lane width (Wr1) that allows a plurality of virtual vehicles (303 and 304) to travel parallel to each other, and on determination that the travel lane has the lane width, the vehicle control device generates, on the travel lane, a plurality of virtual lanes and virtual lane center lines (332 and 333) of the plurality of virtual lanes.

公开(公告)号：US12279392B2

公开(公告)日：2025-04-15

申请号：US18011237

申请日：2021-02-05

Applicant: Hitachi Astemo, Ltd.

Inventor： Kenta Yakuzawa ,  Toshikazu Shigyo

IPC: H05K5/00 ,  B60R16/023 ,  H05K5/06

Abstract: Provided is an electronic control device capable of suppressing outflow of a sealing material to the outside and reducing defective attachment of a bracket.
The electronic control device 1 to be attached to a bracket 2 includes a cover 4 (first housing) and a case 3 (second housing) fitted to the cover 4. The cover 4 (first housing) includes a first flange 4F and a first groove portion 31 filled with a sealing material 5. The case 3 (second housing) includes a second flange 3F overlapping the first flange 4F, and a case protrusion 33 (protrusion) fitted to the first groove portion 31 and embedded in the sealing material 5. The first flange 4F of the cover 4 (first housing) has a second groove portion 41 present at a position that is closer to the outside than the first groove portion 31 is.

公开(公告)号：US12275465B2

公开(公告)日：2025-04-15

申请号：US18053947

申请日：2022-11-09

Applicant: Hitachi Astemo, Ltd.

Inventor： Miki Kohso ,  Kosuke Sano

IPC: B62D5/04

Abstract: Provided is a feature capable of improving steering sensation in an electric power steering control device. This electric power steering control device is provided with: a basic control amount calculation unit that calculates a basic control amount corresponding to driver's steering; a friction force calculation unit that calculates, by using a friction model, a friction force corresponding to at least one of a yaw rate and lateral acceleration, and calculates a friction-caused control amount resulting from the calculated friction force; and a control amount calculation unit that calculates a steering control amount in accordance with the basic control amount and the friction-caused control amount.

公开(公告)号：US20250115083A1

公开(公告)日：2025-04-10

申请号：US18729203

申请日：2022-02-22

Applicant: HITACHI ASTEMO, LTD.

Inventor： Kenji YOSHIHARA ,  Hiroyuki ABE ,  Fumio YUKI ,  Takeo HOSOKAWA

IPC: B60C23/06

Abstract: The present disclosure provides a strain detection device capable of downsizing and improvement in strain detection accuracy as compared with the conventional functional components without hindering deformation of a tire. An aspect of the present disclosure includes a housing 110 bonded to an inner peripheral surface Ti of a tire T via an elastic adhesive EA, and a recess portion 111c provided on an end surface 111e of the housing 110 facing the inner peripheral surface Ti of the tire T. The strain detection device 100 includes the strain detection element 120 that is disposed at the center part of the recess portion 111c and detects strain of the tire T via the elastic adhesive EA, and the elastic member 130 that is disposed in the inner peripheral edge part of the recess portion 111c and protrudes toward the inner peripheral surface Ti of the tire T relative to the end surface 111e of the housing 110. The elastic adhesive EA is filled in a space between the bottom surface 111b of the recess portion 111c and the inner peripheral surface Ti of the tire T inside the elastic member 130.

公开(公告)号：US12270453B2

公开(公告)日：2025-04-08

申请号：US17546205

申请日：2021-12-09

Applicant: Hitachi Astemo, Ltd.

Inventor： Daisuke Ikeda

IPC: F16F9/44 ,  F16F9/348 ,  B62K25/28

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.

公开(公告)号：US12265129B2

公开(公告)日：2025-04-01

申请号：US17865569

申请日：2022-07-15

Applicant: Hitachi Astemo, Ltd.

Inventor： Jun Suzuki ,  Tsuyoshi Takaku ,  Koichi Takahashi

IPC: G01R31/371 ,  B60L58/10 ,  H01M10/42 ,  H04B17/318

Abstract: A battery monitoring apparatus includes: battery state detection devices configured to detect states of battery modules: a control device wirelessly connected to a plurality of the battery state detection devices to manage the states of the battery modules; and a processing unit configured to give, to the battery state detection devices to which identification information is to be given, an identification information indicating arrangement positions of the battery state detection devices based on a plurality of wireless communication strengths among wireless communication strengths between the battery state detection devices to which the identification information is to be given and other battery state detection devices, and wireless communication strengths between the battery state detection devices to which the identification information is to be given and the control device.

公开(公告)号：US20250105724A1

公开(公告)日：2025-03-27

申请号：US18730599

申请日：2022-12-27

Applicant: HITACHI ASTEMO, LTD.

Inventor： Ryoichi INADA ,  Hiroshi NAKANO ,  Nobuyasu KANEKAWA ,  Satoru SHIGETA

IPC: H02M1/32 ,  H02M7/483

Abstract: This power conversion device comprises: a power conversion circuit in which at least three-phases of upper/lower arm circuits having switching elements connected in series are connected in parallel and which outputs AC current to a motor via an output line, said AC current being generated by the switching elements of each phase; a breaker that is provided on the output line of each phase and allows the AC current to flow or interrupts the AC current; a first failure location determination unit that determines a failure location of the switching elements; a breaker control unit that sets, as a failure phase, a phase corresponding to the switching element determined as the failure location by the first failure location determination unit and controls the breaker of the failure phase so that the AC current of the failure phase is allowed to flow at a predetermined specific electric angle in one electric angle cycle and the AC current of the failure phase is interrupted at another electric angle except the specific electric angle; and a failure-time current control unit that controls the drive of other switching elements different from the switching element determined as the failure location.