公开(公告)号：US20250168515A1

公开(公告)日：2025-05-22

申请号：US18841507

申请日：2022-07-29

Applicant: Hitachi Astemo, Ltd.

Inventor： Haruki MATONO ,  Hideaki KIDO ,  Kota IRIE

IPC: H04N23/73 ,  G06V10/141 ,  G06V20/58 ,  H04N13/204

Abstract: Provided is an on-board camera system capable of acquiring accurate three-dimensional information and object recognition information without being affected by a vehicle speed. An on-board camera system including a plurality of cameras arranged on an own vehicle so as to have a stereo vision area in which at least a part of a visual field area is overlapped; a movement amount calculation unit that obtains a movement amount of a feature point of the stereo vision area imaged by the plurality of cameras based on a behavior of the own vehicle; a first exposure condition determination unit that determines a first exposure condition of the plurality of cameras such that the movement amount becomes less than or equal to a threshold value; a second exposure condition determination unit that determines a second exposure condition of the plurality of cameras based on an external light condition of a vehicle exterior; a three-dimensional information acquisition unit that acquires three-dimensional information of the stereo vision area using an image imaged under the first exposure condition; an object recognition unit that recognizes an object around the own vehicle using an image imaged under the second exposure condition; and an exposure control unit that switches an exposure condition of each of the plurality of cameras to the first exposure condition or the second exposure condition.

公开(公告)号：US20250166431A1

公开(公告)日：2025-05-22

申请号：US18840108

申请日：2022-08-08

Applicant: HITACHI ASTEMO, LTD.

Inventor： Kota IDEGUCHI ,  Shinya SASA ,  Takashi YAMAGUCHI ,  Yasuhiro FUJII ,  Nobuyoshi MORITA

IPC: G07C5/08 ,  G06F21/56

Abstract: An object of the present invention is to provide a diagnostic server that can easily diagnose whether an abnormality occurring in a vehicle is a result of an attack or simply a malfunction. A diagnostic server 1 of the present invention includes a log acquisition unit 13 that acquires a history of a first log indicating whether an ECU 32 in a vehicle 3 executes predetermined processing in response to a request signal that requests the ECU 32 to execute the predetermined processing, and a communication determination unit 15 that, when a non-execution log indicating that the predetermined processing is not executed is included in the history, determines validity of communication used to transmit the request signal corresponding to the non-execution log.

公开(公告)号：US20250165378A1

公开(公告)日：2025-05-22

申请号：US18839822

申请日：2023-02-27

Applicant: HITACHI ASTEMO, LTD.

Inventor： Masayuki TAKEI ,  Daisuke FURUYA ,  Takuya KOBAYASHI

IPC: G06F11/362 ,  G06F21/73

Abstract: In an electric control device, a hardware ID unique to an electronic control device and a software ID associated with a software program are set in a ROM, and rewriting of data of the ROM by a data rewriting device is permitted depending on a result of collating the hardware ID with the software ID. Here, a software ID for development used during development of the electronic control device and a software ID for mass-production used during mass-production are set as the software ID in the ROM. Then, the hardware ID and the software ID for mass-production are acquired from the ROM, the IDs are collated, and if there is no conformity between the IDs, the software ID for development is further acquired from the ROM to collate the hardware ID with the software ID for development.

公开(公告)号：US20250162572A1

公开(公告)日：2025-05-22

申请号：US18841298

申请日：2022-10-12

Applicant: Hitachi Astemo, Ltd.

Inventor： Kenta MAEDA ,  Takahiro ITO ,  Kentarou UENO ,  Shuji OHSHITA

IPC: B60W30/02 ,  B60W40/08 ,  B60W50/00 ,  B60W50/14 ,  G06V20/59 ,  G06V40/10

Abstract: To provide a vehicle control device and a vehicle control method that take into consideration individual differences and the effect of vehicle motion, not only in the horizontal direction but also in the front-rear direction, on the head movement of a passenger, and further reduce the head movement of the passenger through vehicle motion that coordinates the front-rear and horizontal directions. The vehicle control device includes: a head movement prediction model that finds, relative to the head movement of a passenger in a first direction caused by vehicle motion in the first direction, the change in the head movement of the passenger in the first direction caused by the vehicle motion in a second direction different from the first direction; and a vehicle motion generation unit that generates the vehicle motion on the basis of the head movement prediction model.

公开(公告)号：US20250158554A1

公开(公告)日：2025-05-15

申请号：US18832967

申请日：2023-04-21

Applicant: HITACHI ASTEMO, LTD.

Inventor： Takafumi HARA ,  Takaya TSUKAGOSHI ,  Shigehisa AOYAGI ,  Hideki MIYAZAKI

IPC: H02P27/12 ,  B60L15/20 ,  H02P21/22

Abstract: This motor control device is connected to an inverter for converting DC power to AC power to output the AC power to a motor and controls the operation of the inverter in accordance with a torque command, thereby controlling the drive of the motor using the inverter. The motor control device comprises: a carrier wave generation unit that generates a carrier wave; a carrier frequency adjustment unit that adjusts a carrier frequency that is the frequency of the carrier wave; and a PWM control unit that performs pulse width modulation on a voltage command using the carrier wave and generates a PWM pulse signal for controlling the operation of the inverter. The carrier frequency adjustment unit adjusts the carrier frequency so that the carrier frequency when the motor performs entrainment drive becomes higher than the carrier frequency when the motor does not perform the entrainment drive.

公开(公告)号：US20250158460A1

公开(公告)日：2025-05-15

申请号：US18726250

申请日：2022-07-25

Applicant: Hitachi Astemo, Ltd.

Inventor： Yuri FUJIMA ,  Masahiro HORI ,  Takaki ITAYA ,  Hideaki GOTO

IPC: H02K1/20 ,  H02K1/32 ,  H02K5/10 ,  H02K7/00

Abstract: The purpose of the present invention is to provide a rotary electrical machine having improved cooling performance. A rotary electrical machine according to the present invention comprises: a stator 301; a rotor 302; and a cooling passage through which a refrigerant for cooling the stator 301 and the rotor 302 flows. The cooling passage is provided with: a refrigerant inlet 343 through which the refrigerant is introduced; stator cooling passages 3013 in communication with the refrigerant inlet 343; a rotor cooling passage 304; and a connection passage 315 which connects the stator cooling passages 3013 with the rotor cooling passage 304. The rotor cooling passage 304 is provided with refrigerant outlets 306a, 306b through which the refrigerant is discharged radially outside the rotor 302 in association with rotational motion of the rotor 302. A plurality of the stator cooling passages 3013 are arranged in the circumferential direction of a stator core 3010. The terminal end of each of the stator cooling passages 3013 is connected to the upstream side of the connection passage 315 at a position opposite to the refrigerant inlet 343 in the axial direction and in the circumferential direction.

公开(公告)号：US20250157333A1

公开(公告)日：2025-05-15

申请号：US18833056

申请日：2022-08-25

Applicant: HITACHI ASTEMO, LTD.

Inventor： Daniel GABRIEL ,  Yuki HORITA ,  Shigenori HAYASE ,  Tatsuhiko MONJI

IPC: G08G1/16 ,  B60W30/09 ,  B60W60/00

Abstract: In the vehicle control device mounted on the vehicle, the information acquisition unit 11 acquires a vehicle information data group representing vehicle information regarding the behavior of the vehicle 2, a road environment data group 32 representing road environment information regarding the environment of the road on which the vehicle 2 is traveling, and a sensor recognition data group 33 representing sensor recognition information regarding the surrounding environment of the vehicle 2 recognized by the external sensor group 4 mounted on the vehicle 2. Based on the road environment data group 32 and the sensor recognition data group 33, the apparent obstacle prediction unit 12 predicts the future behavior of the apparent obstacle that may hinder the traveling of the vehicle 2. The lane risk map generation unit 15 generates a lane risk map representing the collision risk between the vehicle 2 and the obstacle for each lane of the road based on the vehicle information data group 31 and the future behavior of the apparent obstacle predicted by the apparent obstacle prediction unit 12.

公开(公告)号：US20250154995A1

公开(公告)日：2025-05-15

申请号：US18837401

申请日：2023-03-10

Applicant: Hitachi Astemo, Ltd.

Inventor： Koji USUI

IPC: F16D65/18 ,  F16D121/24 ,  F16D127/06

Abstract: The present invention provides an excellently assemblable electric brake apparatus configured to allow an electric actuator to be joined to a bracket member based on application of a single operation to this electric actuator. The electric actuator is engaged with the bracket member by inserting the electric actuator into the bracket member along an axial direction of a motor portion included in this electric actuator.

公开(公告)号：US20250153520A1

公开(公告)日：2025-05-15

申请号：US18834060

申请日：2022-04-06

Applicant: HITACHI ASTEMO, LTD.

Inventor： Takeo HOSOKAWA ,  Fumio YUKI ,  Atsuo SOMA

IPC: B60C23/06 ,  G01L1/22 ,  G01L5/00

Abstract: An object of the present invention is to obtain a step detection device that can accurately detect a step without being affected by weather, environmental conditions, and the like. A step detection device (2) according to the present invention is a step detection device 2 that detects a step (20) in a case where a tire (10) of a vehicle (100) runs over the step, including: a plurality of strain detection elements (1) disposed on a tire inner circumferential surface of the tire at predetermined intervals in a circumferential direction of the tire; and a signal processor (4) that processes detection signals of the plurality of strain detection elements. The signal processor detects the step based on detection signals of two or more adjacent strain detection elements among the plurality of strain detection elements.

公开(公告)号：US20250142790A1

公开(公告)日：2025-05-01

申请号：US18834774

申请日：2022-03-31

Applicant: HITACHI ASTEMO, LTD.

Inventor： Michihito WATARAI ,  Masato SAITO

IPC: H05K7/20

Abstract: An electric controller includes: a circuit board (7); a housing (2) that houses the circuit board (7); a plurality of radiation fins (21a) formed on the housing (2); an air duct (4) attached to the housing (2) in such a way as to cover the plurality of radiation fins (21a); a fan (8) that is held between the housing (2) and the air duct (4) and that sends cooling air to a channel formed by the plurality of radiation fins (21a); a fan connector (8a) electrically connected to the fan (8) via cables (8c); and a feeder connector (7b) electrically connected to the circuit board (7) and fixed to the housing. The fan connector (8a) is detachably connected to the feeder connector (7b), and the fan (8) and the fan connector (8a) are fixed to the air duct (4).