公开(公告)号：US20230331288A1

公开(公告)日：2023-10-19

申请号：US18044330

申请日：2021-08-10

Applicant: Hitachi Astemo, Ltd.

Inventor： Toshinobu SUZUKI ,  Osamu YOSHIDA

IPC: F16H55/26 ,  B62D3/12 ,  F16H57/032 ,  F16H19/04

CPC classification number: B62D3/126 ,  F16H19/04 ,  F16H55/26 ,  F16H57/032 ,  F16H2057/02082

Abstract: A steering device includes: a steering shaft structured to receive rotational force; a rack bar in engagement with the steering shaft; and a rack housing that is made of a metal and contains the rack bar such that the rack bar is movable. The rack housing includes a tubular section extending in a movable direction of the rack bar, and includes a first inclination section disposed in an axial end of the tubular section and inclined to go away from the rack bar outwardly in a radial direction with respect to the rack bar. The tubular section is structured to contact with the rack bar in response to warping of the rack bar due to input from outside. The first inclination section is structured to contact with the rack bar later than the tubular section in response to warping of the rack bar due to input from outside.

公开(公告)号：US11789730B2

公开(公告)日：2023-10-17

申请号：US17428107

申请日：2020-01-29

Applicant: Hitachi Astemo, Ltd.

Inventor： Taisuke Ueta ,  Tatsuya Horiguchi ,  Kenichi Shimbo ,  Hideyuki Sakamoto

IPC: G06F9/30 ,  G06F9/345 ,  G06F9/38 ,  G06F9/445

CPC classification number: G06F9/3001 ,  G06F9/345 ,  G06F9/3877 ,  G06F9/44505

Abstract: An electronic control device includes a processing control unit and an information acquisition unit. The information acquisition unit collects and transfers external environment information to the processing control unit, the processing control unit includes a first processor, a second processor, and a storage unit, the processing control unit executes arithmetic processing by a non-redundant and redundant processing configuration that executes non-redundant and redundant processing using the first processor and the second processor, respectfully, and the processing control unit stores a result of arithmetic processing by the non-redundant processing configuration in the storage unit, individually performs arithmetic processing using the stored result in both the first processor and the second processor by arithmetic processing by the redundant processing configuration, and performs determination for an arithmetic processing result by the non-redundant processing configuration based on an arithmetic result by the first processor and an arithmetic result by the second processor.

公开(公告)号：US20230307995A1

公开(公告)日：2023-09-28

申请号：US18041791

申请日：2021-05-27

Applicant: Hitachi Astemo, Ltd.

Inventor： Masao FUJIMOTO ,  Yuuichi YANAGISAWA ,  Akira ISHII

IPC: H02K11/27 ,  H05K5/00 ,  B62D5/04

CPC classification number: H02K11/27 ,  H05K5/0026 ,  B62D5/0403 ,  B62D5/046 ,  H02K2211/03

Abstract: A fuse circuit element (32) of a fuse module 22 for fail-safe is mounted on a fuse circuit board (31), and connected to wire terminal portions (36) made of respective wire one ends of stator coils. The fuse circuit board (31) has, as main terminals (33), through holes (33a) and land portions (33b), and the wire terminal portions (36) are soldered or welded with the wire terminal portions (36) inserted into the through holes (33a). The fuse circuit board (31) is supported in a cantilever manner by a pedestal portion (52) , and a space (53) is secured between the fuse circuit board (31) and a surface (51) of a housing (7) around the main terminals (33). With this, soldering or welding can be performed without heat escaping during soldering or welding by the space (53).

公开(公告)号：US20230304559A1

公开(公告)日：2023-09-28

申请号：US18012684

申请日：2021-06-10

Applicant: Hitachi Astemo, Ltd.

Inventor： Yuki KURIHARA

IPC: F16F7/09 ,  F16F9/19 ,  F16F9/36 ,  B60G13/08 ,  B60G13/04

CPC classification number: F16F7/09 ,  B60G13/04 ,  B60G13/08 ,  F16F9/19 ,  F16F9/36 ,  B60G2202/23 ,  B60G2202/24 ,  B60G2204/128 ,  B60G2204/129 ,  B60G2206/41 ,  B60G2800/162 ,  F16F2222/04 ,  F16F2222/12 ,  F16F2230/30 ,  F16F2232/08 ,  F16F2234/02

Abstract: A shock absorber includes a cylinder and a movable piston rod inserted into the cylinder to be movable to generate a damping force and having one end which extends to the outside of the cylinder. A seal member is fixed to the cylinder to be in sliding contact with the piston rod, and a friction member generates a frictional force with respect to relative movement between the cylinder and the piston rod. The friction member includes first and second friction parts, respectively fixed to one of the cylinder and the piston rod to be in sliding contact with the other of the cylinder and the piston rod. The second friction part is configured to start to slide with respect to relative movement of the cylinder and the piston rod at a timing different from that of the first friction part and generate an adjustable frictional force.

公开(公告)号：US20230303115A1

公开(公告)日：2023-09-28

申请号：US17928816

申请日：2021-02-25

Applicant: Hitachi Astemo, Ltd.

Inventor： Takeyuki TOMINAGA

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

CPC classification number: B60W60/001 ,  B60W30/18159 ,  B60W40/06 ,  B60W2552/10 ,  B60W2552/53 ,  B60W2556/40

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：US20230299734A1

公开(公告)日：2023-09-21

申请号：US17924392

申请日：2021-03-10

Applicant: Hitachi Astemo, Ltd.

Inventor： Jia LI ,  Aya TOOYAMA ,  Hirofumi SHIMIZU

IPC: H03H7/01 ,  H02M1/44 ,  H02M7/48

CPC classification number: H03H7/01 ,  H02M1/44 ,  H02M7/48 ,  B60L15/007

Abstract: Provided is a filter device including a π-type noise filter, and a metal case in which a first ground point and a second ground point are formed. The π-type noise filter includes a magnetic core configured to surround a direct current wiring, a first capacitor disposed in a stage preceding the magnetic core, a second capacitor disposed in a stage subsequent to the magnetic core, each of the first capacitor and the second capacitor connected to a corresponding one of the first ground point and the second ground point. A first partition and a second partition opposing each other are formed between the first ground point and the second ground point, and the first partition and the second partition have a predetermined gap between each other. Provided is a power conversion device including the filter device and a power conversion unit.

公开(公告)号：US11764720B2

公开(公告)日：2023-09-19

申请号：US17642163

申请日：2020-10-07

Applicant: Hitachi Astemo, Ltd.

Inventor： Hiroto Saotome ,  Masaki Hano

IPC: H02P27/08 ,  H02K11/33 ,  H02P6/08

CPC classification number: H02P27/08 ,  H02K11/33 ,  H02P6/085

Abstract: A three-phase brushless motor control device uses one shunt resistor disposed on a bus of an inverter as a drive circuit driving a three-phase brushless motor and acquires a two-phase current of the three-phase brushless motor at a predetermined timing to vector-control the three-phase brushless motor. At this time, in accordance with a duration in which the two-phase current cannot be accurately acquired, the control device varies an acquisition timing of the two-phase current or varies a period during which the three-phase brushless motor is vector-controlled.

公开(公告)号：US11763035B2

公开(公告)日：2023-09-19

申请号：US17290456

申请日：2019-10-16

Applicant: Hitachi Astemo, Ltd.

Inventor： Hiroki Maehama ,  Fumio Narisawa ,  Satoshi Otsuka ,  Kazuyoshi Serizawa

IPC: G06F9/44 ,  G06F21/70 ,  G06F8/20 ,  G06F8/35 ,  G06F8/72

CPC classification number: G06F21/70 ,  G06F8/20 ,  G06F8/35 ,  G06F8/72

Abstract: A software management device capable of converting a term used in a model and an abstraction level thereof. The software management device includes an input unit that inputs a target model, a storage unit that hierarchically stores functions and/or names constituting the model, and an in-model name replacement unit that selects a corresponding function and/or name from the storage unit according to the input model input from the input unit, and replaces a function and/or a name in the input model with the selected function and/or name.

公开(公告)号：US11761509B2

公开(公告)日：2023-09-19

申请号：US17900418

申请日：2022-08-31

Applicant: Hitachi Astemo, Ltd.

Inventor： Gota Nakano ,  Chikara Yanagisawa

IPC: F16F9/46 ,  F16F9/18 ,  F16F9/34 ,  F16F9/348 ,  F16F9/516 ,  B60G13/08 ,  B60G17/08 ,  F16F9/512

CPC classification number: F16F9/46 ,  F16F9/18 ,  F16F9/185 ,  F16F9/34 ,  F16F9/348 ,  F16F9/3484 ,  F16F9/3485 ,  F16F9/516 ,  B60G13/08 ,  B60G17/08 ,  B60G2202/24 ,  B60G2206/41 ,  B60G2500/114 ,  B60G2800/162 ,  F16F9/5126 ,  F16F2222/12 ,  F16F2226/04 ,  F16F2228/066 ,  F16F2232/08 ,  F16F2234/02

Abstract: A damping force generating mechanism includes: a flow passage formation part that forms a flow passage through which a liquid flows; and a valve that is configured to control a flow of the liquid in the flow passage. The flow passage formation part includes a first seat part that is provided radially outward of a flow passage port of the flow passage, protrudes from the flow passage port and contacts the valve, a second seat part that is provided radially outward of the first seat part, protrudes from the flow passage port and contacts the valve, and a circulation part having an orifice that allows the liquid to flow from the flow passage port toward the second seat part in a state in which the valve is in contact with the first seat part.

公开(公告)号：US20230291260A1

公开(公告)日：2023-09-14

申请号：US18017953

申请日：2021-08-04

Applicant: Hitachi Astemo, Ltd.

Inventor： Masanori SAWAHATA ,  Masahiro HORI ,  Hideaki GOTO ,  Takaki ITAYA

IPC: H02K1/32 ,  H02K1/276 ,  H02K9/19

CPC classification number: H02K1/32 ,  H02K1/276 ,  H02K9/19

Abstract: An object of the present invention is to provide a rotary electric machine in which damage of a magnet is suppressed and cooling performance of the magnet is improved.
The present invention includes a rotation shaft 21, a rotor 20, and core end members 204 and 205 connected to end portions of the rotor 20. The rotor 20 includes a magnet 201, a rotor core 200, and interposed members 301a and 301b interposed between the magnet 201 and the rotor core 200. In the rotor core 200, a magnet insertion hole 202 for disposing the magnet 201 and flux barriers 203a and 203b are formed. The rotation shaft 21 is provided with a first flow path 21a through which a refrigerant flows. The core end members 204 and 205 are provided with a second flow path 504a joining the first flow path 21a and the flux barrier 203a. The interposed members 301a and 301b are provided along the axial direction such that a cooling flow path for the refrigerant is formed on both facing surfaces of the central portion of the magnet 201 in the axial direction, which are long sides of a rectangular cross section.