公开(公告)号：US12103616B2

公开(公告)日：2024-10-01

申请号：US17291892

申请日：2019-10-30

Applicant: Hitachi Astemo, Ltd.

Inventor： Hiroshi Nakano ,  Tomoaki Fujibayashi ,  Kazuya Takahashi

IPC: B62D6/00 ,  B62D13/00

CPC classification number: B62D6/003 ,  B62D13/00

Abstract: In a steering control device, method, and system, a command is calculated for generating a periodical yaw moment having a phase opposite to oscillating motion based on information on oscillating motion which occurs in a vehicle combination composed of a vehicle and a trailer, and based on the calculated command, a first steering angle command for controlling a steering angle of the front wheels of the vehicle is output to a front wheel steering control unit and a second steering angle command for controlling a steering angle of the rear wheels of the vehicle is output to a rear wheel steering control unit, so that the oscillating motion can be suppressed.

公开(公告)号：US20240308579A1

公开(公告)日：2024-09-19

申请号：US18576135

申请日：2022-06-01

Applicant: Hitachi Astemo, Ltd.

Inventor： Shunsuke ARITOMI ,  Tadaharu YOKOTA ,  Yasuhito NAKAKUKI ,  Atsushi HIRATA ,  Takahiro ITO ,  Kenta MAEDA

IPC: B62D6/00 ,  B62D5/00 ,  B62D5/04

CPC classification number: B62D6/008 ,  B62D5/001 ,  B62D5/0409 ,  B62D5/0421 ,  B62D5/046

Abstract: A steer-by-wire control device according to the present invention includes a control device that controls a first motor that operates a steering wheel of a vehicle and a second motor that controls steering operation of a wheel. Before making a transition to an automatic driving mode of the vehicle, the control device applies input torque to the steering wheel by the first motor in a forward rotation direction and a backward rotation direction of rotation directions of the first motor, acquires behavior information of the steering wheel obtained by application of the input torque, and determines whether or not to estimate a control parameter of the steering wheel based on the behavior information. The behavior information includes at least one of a value of a rotation angle of a steering wheel and a value obtained by time-differentiating a rotation angle.

公开(公告)号：US12093066B2

公开(公告)日：2024-09-17

申请号：US17286698

申请日：2019-09-19

Applicant: Hitachi Astemo, Ltd.

Inventor： Masahiro Doi ,  Yuri Ohara ,  Takeo Yamashita

IPC: G05F1/565 ,  G05F1/46 ,  G05F1/577 ,  H03K17/22

CPC classification number: G05F1/565 ,  G05F1/465 ,  G05F1/577 ,  H03K17/223

Abstract: Provided is a highly versatile and reliable power supply device (power supply ASIC) that can support electronic devices with a wide range of drive currents while suppressing a cost increase, and an electronic control device using the same. An electronic control device includes: a first power supply circuit that outputs a first voltage; a second power supply circuit that generates a second voltage from the first voltage; and a first MOSFET arranged independently of the first power supply circuit and the second power supply circuit. The second power supply circuit includes: a reference power supply that outputs a reference voltage; an amplifier that amplifies the reference voltage; a second MOSFET connected in parallel with the first MOSFET; a voltage detection unit that detects a voltage value of a gate terminal of the first MOSFET; and a switching unit that connects an output from the amplifier to either the gate terminal of the first MOSFET or a gate terminal of the second MOSFET. The switching unit is controlled based on a voltage value at a start detected by the voltage detection unit.

公开(公告)号：US12087703B2

公开(公告)日：2024-09-10

申请号：US17293617

申请日：2019-11-27

Applicant: Hitachi Astemo, Ltd.

Inventor： Katsumi Ikegaya ,  Takayuki Oshima ,  Yoichiro Kobayashi ,  Masato Kita ,  Keishi Komoriyama ,  Minoru Migita ,  Yu Kawagoe ,  Kiyotaka Kanno

IPC: H01L23/528 ,  B60R16/03 ,  H01L21/8234 ,  H01L23/00 ,  H01L23/522 ,  H01L27/088

CPC classification number: H01L23/562 ,  B60R16/03 ,  H01L21/823475 ,  H01L23/522 ,  H01L23/5226 ,  H01L23/5283 ,  H01L23/5286 ,  H01L27/088

Abstract: In a semiconductor device equipped with a current mirror circuit, a highly reliable semiconductor device capable of suppressing a change in a mirror ratio of the current mirror circuit over time is provided. A current mirror circuit that includes a first MOS transistor and a plurality of MOS transistors paired with the first MOS transistor, and a plurality of wiring layers formed on an upper layer of the MOS transistor are provided. The plurality of wiring layers are arranged such that wiring patterns have the same shape within a predetermined range from an end of a channel region of each of the first MOS transistor and the plurality of MOS transistors.

公开(公告)号：US12086585B2

公开(公告)日：2024-09-10

申请号：US17908502

申请日：2021-01-15

Applicant: Hitachi Astemo, Ltd.

Inventor： Yusuke Kogure ,  Takaaki Nokaido ,  Kentaro Yoshimura

IPC: G06F9/44 ,  G06F8/65 ,  B60R16/023

CPC classification number: G06F8/65 ,  B60R16/0231

Abstract: Updating of a program is realized even with a small-sized temporary storage area. A program update system distributes an update program from an update program distributing unit to a vehicle control device. The update program distributing unit encrypts an update program by a predetermined unit of encryption, and transmits the update program, which has been encrypted, by a predetermined unit of transfer to the vehicle control device to be updated, the vehicle control device decrypts the received update program by the unit of encryption, and stores the update program, which has been decrypted, by a predetermined unit of writing in a program storage unit, and the unit of writing is an integral multiple of the unit of encryption.

公开(公告)号：US12085141B2

公开(公告)日：2024-09-10

申请号：US17430439

申请日：2020-02-14

Applicant: Hitachi Astemo, Ltd.

Inventor： Masato Suehiro ,  Atsushi Maeda ,  Yuji Nakayama ,  Takashi Kozono ,  Koichi Yamaka

IPC: F16F9/54 ,  F16F9/18 ,  F16F9/32 ,  B60G13/08 ,  B60G17/08 ,  F16F9/38 ,  F16F9/46

CPC classification number: F16F9/54 ,  F16F9/182 ,  F16F9/3221 ,  F16F9/3271 ,  B60G13/08 ,  B60G17/08 ,  B60G2202/24 ,  B60G2204/128 ,  B60G2204/129 ,  B60G2204/40 ,  B60G2206/41 ,  B60G2206/82092 ,  B60G2500/11 ,  B60G2800/162 ,  B60G2800/916 ,  F16F9/38 ,  F16F9/463 ,  F16F2222/12 ,  F16F2226/045 ,  F16F2228/066 ,  F16F2230/10 ,  F16F2230/18 ,  F16F2232/08 ,  F16F2234/02

Abstract: A mounting eye (21) is fastened to a rod by pushing, partially or over an entire periphery, an outer periphery of a joint portion of a mounting eye into an annular groove of the rod. Accordingly, an axial length of a fastening portion can be set shorter than that of a related-art structure (screw fastening), thereby being capable of securing a stroke of the rod of a shock absorber in which the mounting eye is fastened to the rod.

公开(公告)号：US12085074B2

公开(公告)日：2024-09-10

申请号：US17777682

申请日：2020-10-30

Applicant: Hitachi Astemo, Ltd.

Inventor： Shingo Tamura ,  Hiroyuki Yamada ,  Kiyotaka Ogura ,  Minoru Hashida

IPC: F04B53/10 ,  F16K27/02 ,  F16K31/06

CPC classification number: F04B53/1082 ,  F16K27/029 ,  F16K31/0655 ,  F16K31/0675

Abstract: An object of the present invention is to secure a gap between a component on a suction valve side and a component on an anchor side when a valve is closed, regardless of an integration tolerance of a plurality of components, and to be able to reliably close the valve. In an electromagnetic valve mechanism 300 including an anchor assembly 36 and a magnetic core 33 between which a magnetic attraction force acts, and a suction valve 30 configured to be able to come into and out of contact with the anchor assembly 36, the anchor assembly 36 includes a first anchor assembly component 36a having a facing surface 36ab that faces the magnetic core 33, a second anchor assembly component 36b configured integrally with the first anchor assembly component 36a, and a press-fitting portion 36c that fixes the first anchor assembly component 36a and the second anchor assembly component 36b. A press-fitting length L1 of the press-fitting portion 36c is set to a length at which the second anchor assembly component 36b and the suction valve 30 are separated from each other in a state where the suction valve 30 is closed.

公开(公告)号：US12077178B2

公开(公告)日：2024-09-03

申请号：US17628498

申请日：2020-07-14

Applicant: HITACHI ASTEMO, LTD.

Inventor： Naoto Aoki ,  Haruki Nishimura ,  Shunsuke Matsuo ,  Akira Kuriyama ,  Tatsuhiko Monji

IPC: B60W60/00 ,  B60W40/09 ,  B60W40/12 ,  G01S7/40 ,  G01S7/497 ,  G01S13/931 ,  G01S17/93 ,  G06F18/25 ,  G08G1/16

CPC classification number: B60W60/001 ,  B60W40/09 ,  B60W40/12 ,  G06F18/25 ,  B60W2420/408 ,  B60W2540/30

Abstract: An axial deviation of the sensor is corrected. An aiming device that calculates a correction parameter for correcting a detection result of a target sensor includes an estimated-track generation unit that detects a track of a target for a period when an own vehicle moves, by using information of a movement of the own vehicle, which is detected by a movement sensor, and generates a plurality of estimated tracks having different start-point positions from the detected track of the target by using a first variable group, a corrected-track generation unit that generates a plurality of corrected tracks from the track of the target around the own vehicle, which is detected by the target sensor, by using a second variable group, and a correction parameter calculation unit that selects a combination in which a difference between the estimated track and the corrected track is small, and calculates the correction parameter for correcting a displacement of the target sensor by using a first variable related to the selected estimated track and a second variable related to the selected corrected track.

公开(公告)号：US12077154B2

公开(公告)日：2024-09-03

申请号：US17627032

申请日：2020-05-25

Applicant: Hitachi Astemo, Ltd.

Inventor： Hidetoshi Arima ,  Chikara Nishiura ,  Satoshi Kashiwamura

IPC: B60T7/12 ,  B60W10/04 ,  B60W10/18 ,  B60W10/20 ,  B60W30/10 ,  B60W50/00

CPC classification number: B60W30/10 ,  B60W10/04 ,  B60W10/18 ,  B60W10/20 ,  B60W50/00 ,  B60W2050/0022 ,  B60W2520/10 ,  B60W2520/14 ,  B60W2552/30

Abstract: A vehicle motion control device according to the present invention obtains a translation force for causing the position of a vehicle to trace a target travel path, on the basis of a lateral displacement amount which is an amount of displacement of the vehicle in a lateral direction with respect to a target movement point, obtain a rotational force for correcting an orientation of the vehicle with respect to the target travel path, on the basis of an orientation displacement amount which is an amount of displacement of the vehicle in a yaw direction with respect to the target movement point, weight the translation force and the rotational force on the basis of specifications relating to traveling of the vehicle, and output a control command for achieving a target lateral force obtained by adding up the weighted translation force and the weighted rotational force.

公开(公告)号：US20240287974A1

公开(公告)日：2024-08-29

申请号：US18569380

申请日：2022-05-18

Applicant: Hitachi Astemo, Ltd.

Inventor： Junnosuke NAKATSUGAWA ,  Masaki KOYAMA ,  Hiroshi SAKAI ,  Kan KOBAYASHI ,  Yoshinori KAWAI

IPC: F04B17/03 ,  B60G11/27 ,  F25B31/02 ,  F25D11/02 ,  H02K33/16

CPC classification number: F04B17/03 ,  B60G11/27 ,  F25B31/023 ,  H02K33/16 ,  B60G2202/152 ,  F25D11/02

Abstract: A linear motor for a compressor having asymmetric load characteristics in both directions of a stroke, improves the service life of a bearing, and reduces a total length of a system. The linear motor includes a movable element having a magnetic pole frame and a plurality of field element poles, and a plurality of magnetic pole teeth around which windings are wound and that are provided so as to sandwich the movable element, and the movable element and the magnetic pole teeth are relatively displaced. The plurality of field element poles include primary magnets arranged between the plurality of magnetic pole teeth and secondary magnets arranged externally relative to spaces between the plurality of magnetic pole teeth in either direction of the relative displacement. A neck part of the magnetic pole frame connected to a bearing is arranged externally in the other direction of the relative displacement direction.