公开(公告)号：US12005990B2

公开(公告)日：2024-06-11

申请号：US17240479

申请日：2021-04-26

Applicant: HITACHI ASTEMO, LTD.

Inventor： Naoya Kuroiwa ,  Yosuke Murakami

IPC: B62K25/08 ,  B62K25/04 ,  F16F9/18 ,  F16F9/46 ,  F16F13/00

CPC classification number: B62K25/08 ,  F16F9/182 ,  F16F9/185 ,  F16F9/464 ,  B62K2025/044 ,  F16F13/007 ,  F16F2222/12 ,  F16F2228/066 ,  F16F2230/18 ,  F16F2230/186 ,  F16F2232/08 ,  F16F2234/02

Abstract: A hydraulic shock absorber includes an enclosure member. The enclosure member has an inflow path which guides oil from the outside to the inside. The inflow path is arranged so that an axis of the inflow path deviates from a central axis of a rod.

公开(公告)号：US20240188252A1

公开(公告)日：2024-06-06

申请号：US18524763

申请日：2023-11-30

Applicant: Hitachi Astemo, Ltd. ,  HONDA MOTOR CO., LTD.

Inventor： Daiki KUDO ,  Yoshiharu TANABE ,  Kohei NAKANO ,  Hiroyuki NAKADE ,  Kenichi SASAKI ,  Takahiro UNEME ,  Ryuta WAKABAYASHI

IPC: H05K7/20 ,  H05K7/14

CPC classification number: H05K7/20272 ,  H05K7/14322 ,  H05K7/20927

Abstract: An electronic device includes a supply refrigerant pipe that is connected to an opening end. The supply refrigerant pipe has a connection opening end that is directly connected to the opening end, a refrigerant pipe-side reduced diameter flow path in which flow path area decreases with increasing distance from the connection opening end, and a small diameter flow path connected to an end portion of the refrigerant pipe-side reduced diameter flow path on a side opposite to the connection opening end A main body case has, as parts of the refrigerant flow path, a case-side reduced diameter flow path in which flow path area decreases with increasing distance from the opening end, and a flat flow path formed in a shape flatter than the small diameter flow path and connected to an end portion of the case-side reduced diameter flow path on a side opposite to the opening end.

公开(公告)号：US20240187987A1

公开(公告)日：2024-06-06

申请号：US18552559

申请日：2022-03-01

Applicant: HITACHI ASTEMO, LTD.

Inventor： Ryo FUKUDA

IPC: H04W52/02 ,  H04L67/12

CPC classification number: H04W52/0225 ,  H04L67/12

Abstract: An object is to provide a communication device capable of appropriately storing communication information for specifying another device that performs communication at an abnormal timing. A communication device 10 is a communication device that is mounted on a vehicle and communicates with other devices. The communication device 10 includes a communication monitoring unit 40 that monitors communication with another device and accumulates communication information for specifying another device that performs communication, a storage medium 30 that stores the communication information, and a timer 22 that counts a duration of a wake-up state of the communication device 10. When the duration of the wake-up state has passed a predetermined time, the communication monitoring unit 40 stores the accumulated communication information in the storage medium 30.

公开(公告)号：US20240186822A1

公开(公告)日：2024-06-06

申请号：US18285670

申请日：2021-08-20

Applicant: Hitachi Astemo, Ltd.

Inventor： Masafumi YAMAMOTO ,  Takumi MASUBUCHI

IPC: H02J9/06 ,  G11C5/14

CPC classification number: H02J9/068 ,  G11C5/141

Abstract: A power supply control device includes: a plurality of power supply circuits; a control circuit that controls the power supply circuits; an output current monitor that monitors output currents of the power supply circuits; and a storage unit in which any one of a plurality of operation modes for controlling the power supply circuits is settable. The control circuit controls the power supply circuits based on the operation mode set in the storage unit and the output currents monitored by the output current monitor.

公开(公告)号：US20240174230A1

公开(公告)日：2024-05-30

申请号：US18553288

申请日：2022-02-28

Applicant: HITACHI ASTEMO, LTD.

Inventor： Takayuki SAITO ,  Masashi SEIMIYA ,  Taku TAKAHAMA ,  Keisuke TAKEUCHI ,  Yuta TSURUMOTO ,  Seiya ISHII

IPC: B60W30/14 ,  B60W30/16 ,  G06V20/56 ,  G06V20/58 ,  H04W4/46

CPC classification number: B60W30/143 ,  B60W30/16 ,  G06V20/58 ,  G06V20/588 ,  H04W4/46 ,  B60W2420/403 ,  B60W2552/53 ,  B60W2554/4041 ,  B60W2554/4045 ,  B60W2554/802 ,  B60W2556/10 ,  B60W2556/65

Abstract: An object of the present invention is to provide a vehicle control device capable of improving ride comfort of a driver. A lane change detection unit 205 of a vehicle control device 200 determines a possibility of cut-in of an adjacent vehicle immediately in front of an own vehicle on the basis of an adjacent vehicle relationship value (for example, a relative speed between the own vehicle and the adjacent vehicle) in an advancing direction. An acceleration/deceleration control unit 206 corrects acceleration/deceleration of the own vehicle on the basis of the possibility of the cut-in determined on the basis of the adjacent vehicle relationship value in the advancing direction.

公开(公告)号：US20240171107A1

公开(公告)日：2024-05-23

申请号：US18281731

申请日：2021-08-31

Applicant: Hitachi Astemo, Ltd.

Inventor： Shun TANIGUCHI ,  Noriya NAKAO ,  Kazuaki TOBARI ,  Toshiyuki AJIMA ,  Kentaro MATSUO

IPC: H02P25/024 ,  H02P21/14 ,  H02P21/22 ,  H02P27/08

CPC classification number: H02P25/024 ,  H02P21/141 ,  H02P21/22 ,  H02P27/08

Abstract: Disclosed is a synchronous machine control device capable of suitably executing stabilization control of a synchronous machine. This synchronous machine control device controls a power converter (2) to which a synchronous machine (1) is connected, and comprises: a first magnetic flux command calculation unit (21) that calculates a first magnetic flux command value from an electric current command value of the synchronous machine; a magnetic flux estimation unit (23) that estimates a magnetic flux value of the synchronous machine from an electric current detection value of the synchronous machine; a voltage calculation unit (19) that generates a voltage command value for the power converter such that the first magnetic flux command value and the magnetic flux value match; and a damping ratio control unit (27) that, on the basis of a vibration component of the magnetic flux value, generates a correction amount for the voltage command value such that the vibration component is damped.

公开(公告)号：US20240166177A1

公开(公告)日：2024-05-23

申请号：US18282611

申请日：2022-03-07

Applicant: Hitachi Astemo, Ltd.

Inventor： Suguru SAOTOME ,  Hirohito TADA ,  Norikazu MATSUZAKI ,  Masayuki KIKAWA

IPC: B60T8/172 ,  B60T8/171 ,  B60T13/14 ,  B60T13/58 ,  B60T13/74 ,  H02P3/04

CPC classification number: B60T8/172 ,  B60T8/171 ,  B60T13/588 ,  B60T13/746 ,  H02P3/04 ,  B60T13/145

Abstract: In an application, which refers to holding actuation of a parking brake mechanism (a rotation-linear motion conversion mechanism), a braking control apparatus (a parking brake control apparatus) determines an application stroke from a load detection point including as far as an overshoot amount. The load detection point is a generation point of a thrust force that is detected due to a current flowing in the electric motor. The overshoot amount is generated based on a rotation of an electric motor due to inertia after driving of the electric motor is stopped. The braking control apparatus determines a target release stroke in a release, which is release actuation of the parking brake mechanism, according to the application stroke. The braking control apparatus outputs a control instruction to conduct the release based on the target release stroke.

公开(公告)号：US20240161956A1

公开(公告)日：2024-05-16

申请号：US18282585

申请日：2022-03-04

Applicant: Hitachi Astemo, Ltd.

Inventor： Yasuo SHIMA ,  Yoichiro KOBAYASHI

IPC: H01F7/18

CPC classification number: H01F7/1844 ,  H01F7/1811 ,  H01F2007/1888

Abstract: A load drive device that drives and controls an inductive load based on a PWM signal from a microcomputer is provided, and the load drive device has excellent reliability and responsiveness capable of quickly detecting disconnection of the inductive load. The load drive device includes a microcomputer and a driver circuit that drives an inductive load by a pulse width modulation signal of a constant cycle based on a control command from the microcomputer, in which the driver circuit includes a current monitoring circuit that monitors a current flowing through the inductive load, and a disconnection diagnosis circuit that detects disconnection of the inductive load based on a current value detected by the current monitoring circuit, and the disconnection diagnosis circuit obtains a change amount of a current value detected by the current monitoring circuit, and when the change amount is equal to or less than a predetermined threshold, determines that the inductive load is disconnected and notifies the microcomputer of the disconnection.

公开(公告)号：US20240161610A1

公开(公告)日：2024-05-16

申请号：US18548671

申请日：2022-03-07

Applicant: HITACHI ASTEMO, LTD.

Inventor： Yuta MUTO ,  Takashi NOMURA ,  Naoki MORI

IPC: G08G1/056

CPC classification number: G08G1/056

Abstract: An object of the present invention is to provide a technology for estimating a traveling direction of a lane by using accuracy of external environment information. An information processing device (100) of the present invention includes at least one memory (102 and 103) including a program code and at least one processor (101) configured to execute the program code. The processor is configured to acquire external environment information including at least information regarding a peripheral region of a vehicle, and determine a traveling direction of at least one lane by using a first accuracy (A1) indicating the level of precision of the external environment information.

公开(公告)号：US20240160433A1

公开(公告)日：2024-05-16

申请号：US18549670

申请日：2022-03-01

Applicant: HITACHI ASTEMO, LTD.

Inventor： Teruaki NOMURA ,  Nobuyoshi MORITA ,  Masashi YANO ,  Mikio KATAOKA ,  Yasuhiro FUJII ,  Shuhei KANEKO

IPC: G06F8/654 ,  G06F21/64

CPC classification number: G06F8/654 ,  G06F21/64

Abstract: An object is to shorten a time required for reprogramming of a control device including a single-bank microcomputer. An ECU 901 is a control device including a first microcomputer 1 and a second microcomputer 2 that execute a program stored in a rewriting area 13 in which a memory bank is configured as a single bank. The second microcomputer 2 includes a preprocessing unit 214 that performs preprocessing on a rewriting program 5 in reprogramming processing of rewriting the program stored in the rewriting area 13 into the rewriting program 5, and a transmission unit 213 that transmits the preprocessed rewriting program 5 to the first microcomputer 1. The first microcomputer 1 includes a reception unit 121 that receives the rewriting program 5 transmitted from the second microcomputer 2, and a writing unit 122 that writes the received rewriting program 5 in the rewriting area 13.