公开(公告)号：US20240074034A1

公开(公告)日：2024-02-29

申请号：US18261250

申请日：2021-11-29

Applicant: HITACHI ASTEMO, LTD.

Inventor： Akira ISHII ,  Tomio SAKASHITA

IPC: H05K1/02 ,  H05K1/14

CPC classification number: H05K1/0218 ,  H05K1/14 ,  H05K2201/09345

Abstract: An electronic control device includes a plurality of circuit boards that transmit signals to each other and a power supply connector for direct-current power. A ground line connected to a ground terminal of the power supply connector is connected to a ground of one of the plurality of circuit boards by way of a ground of another one of the plurality of circuit boards. In this way, the electronic control device including the plurality of circuit boards needs fewer noise reduction components while enabling easier routing of ground lines.

公开(公告)号：US11912351B2

公开(公告)日：2024-02-27

申请号：US16996430

申请日：2020-08-18

Applicant: SHOWA CORPORATION

Inventor： Kyouichi Tagami ,  Ken Isshiki ,  Nobuyuki Enomoto ,  Eishi Ishimaru

IPC: B62D5/04 ,  B62D6/10

CPC classification number: B62D5/0463 ,  B62D6/10

Abstract: A steering control device which applies an assist torque or a reaction torque to a steering member operated by a driver, includes: a torque loss estimation unit which estimates torque loss; and a correction amount calculation unit which calculates a correction amount according to a rack axial force estimation value calculated based on a roll rate when the torque loss estimation unit estimates the torque loss.

公开(公告)号：US20240060782A1

公开(公告)日：2024-02-22

申请号：US18257971

申请日：2021-09-02

Applicant: HITACHI ASTEMO, LTD.

Inventor： Tomoaki WATAHIKI ,  Shinichi AMAYA

IPC: G01C21/34 ,  G01C21/32

CPC classification number: G01C21/3446 ,  G01C21/32

Abstract: The present disclosure provides a route conversion apparatus which enables, in a case where a first route based on first map data is converted into a second route based on second map data in a range which is narrower than a section of an electronic map, an error of the converted second route to be detected, and conversion into a correct second route to be performed. The route conversion apparatus 100 includes a route conversion unit 122a that generates a second route RT2 based on location reference information LRI of a first route RT1, a storage unit 121 that stores a route verification model RVM, and a route verification unit 122b that inputs the second map data MD2, the location reference information LRI, and the second route RT2 to the route verification model RVM to verify whether the second route RT2 is correct or incorrect.

公开(公告)号：US11904949B2

公开(公告)日：2024-02-20

申请号：US17925906

申请日：2020-06-16

Applicant: Hitachi Astemo, Ltd.

Inventor： Satoshi Enomoto

IPC: B62D3/12 ,  F16H19/04

CPC classification number: B62D3/126 ,  F16H19/04 ,  F16H2019/046

Abstract: A vehicular steering device includes a turning shaft, a housing storing therein the turning shaft, a stopper provided at a shaft end of the turning shaft, and an annular elastic body. An opening of the housing is formed in a U-shaped cross-sectional shape and in an annular shape opened toward the stopper by an external cylinder portion and an internal cylinder portion. The elastic body includes a first elastic portion and a second elastic portion. The first elastic portion is supported by an inner circumferential surface of the external cylinder portion and the bottom surface, and is provided with a first clearance from an outer circumferential surface of the internal cylinder portion. The second elastic portion extends toward the stopper from the first elastic portion, and is provided with a second clearance larger than the first clearance from the inner circumferential surface of the external cylinder portion.

公开(公告)号：US11901837B2

公开(公告)日：2024-02-13

申请号：US17464067

申请日：2021-09-01

Applicant: Hitachi Astemo, Ltd.

Inventor： Kazunari Kurokawa ,  Takuma Kato ,  Masahiro Shimada ,  Morifumi Shigemasa ,  Akihiro Suzuki

IPC: H02M7/00 ,  H05K7/20

CPC classification number: H02M7/003 ,  H05K7/209

Abstract: A power control unit includes a power device, a heat dissipation member disposed to face the power device with an insulating resin member interposed therebetween, and a plurality of plate-shaped bus bars each of which has one end connected to the power device, in which a plurality of input bus bars connected to an input terminal of the power device are provided as the bus bar, and at least one of the plurality of input bus bars is erected so that a direction along a plate width is aligned with a direction along a normal line of a surface of the heat dissipation member facing the power device, and is disposed with respect to the heat dissipation member with the insulating resin member interposed therebetween.

公开(公告)号：US11898850B2

公开(公告)日：2024-02-13

申请号：US17603697

申请日：2020-04-24

Applicant: Hitachi Astemo, Ltd.

Inventor： Ryota Mita

IPC: G01C21/28 ,  G07C5/08 ,  B60W60/00

CPC classification number: G01C21/28 ,  G07C5/085 ,  B60W60/001

Abstract: It is possible to reduce inadvertent vehicle behavior during autonomous driving. A vehicle position detection device includes: a satellite positioning position calculation unit 15 that receives a satellite positioning position signal of a vehicle and calculates a satellite positioning position of the vehicle; an autonomous navigation position calculation unit 16 that receives an autonomous navigation position signal of the vehicle and calculates an autonomous navigation position of the vehicle; a distance calculation unit 17 that calculates a positional difference between the satellite positioning position and the autonomous navigation position; a recording unit that stores a plurality of parameter sets in which a plurality of thresholds for allowing a positional difference for each speed of the vehicle are set per vehicle characteristic; a selection unit 14 that selects a parameter set according to the vehicle characteristic from a plurality of parameter sets 11 to 13 stored in the recording unit; and a determination unit 18 that outputs the satellite positioning position when the positional difference is within the threshold, and outputs the autonomous navigation position when the positional difference is out of the threshold.

公开(公告)号：US11897449B2

公开(公告)日：2024-02-13

申请号：US17597205

申请日：2020-07-07

Applicant: Hitachi Astemo, Ltd.

Inventor： Nobuyasu Kanekawa ,  Atsushi Arata

IPC: B60W20/50 ,  B60K6/442 ,  B60W50/02 ,  B60W50/029

CPC classification number: B60W20/50 ,  B60K6/442 ,  B60W50/0205 ,  B60W50/029 ,  B60W2050/021 ,  B60W2050/0292

Abstract: A vehicle control system includes a transmission unit, first and second sources, as well as first, second, and third control units. The first control unit controls the transmission unit. The first source inputs energy to the transmission unit. The second source inputs energy to the transmission unit. The second control unit controls the first source. The third control unit controls the second source. The first control unit has a function of continuing an operation when a failure occurs. The second control unit and the third control unit have a common cause failure measure. The function mixes energy from different sources and transmits energy to the driving wheel.

公开(公告)号：US20240048388A1

公开(公告)日：2024-02-08

申请号：US18258412

申请日：2021-09-08

Applicant: HITACHI ASTEMO, LTD.

Inventor： Tetsuya YAMADA ,  Masashi SEIMIYA ,  Yasuhiro FUJII

IPC: H04L9/32 ,  G06F21/62 ,  H04L9/08 ,  H04L9/30

CPC classification number: H04L9/3231 ,  G06F21/6245 ,  H04L9/0894 ,  H04L9/3247 ,  H04L9/30 ,  G06Q40/08

Abstract: The present disclosure provides an information management system capable of solving a problem related to handling of information regarding each driver when a plurality of drivers drives one vehicle. An information management system 1 according to an aspect of the present disclosure manages driver information DI regarding a driver of a vehicle V. The information management system 1 includes a driver identification unit 111 that acquires personal identification information PI of the driver, an information acquisition unit 12 that acquires driver information DI including travel information of the vehicle V, and individual information storage units 125 and 132 that store individual information PD in which the personal identification information PI and the driver information DI are associated with each other.

公开(公告)号：US20240042951A1

公开(公告)日：2024-02-08

申请号：US18286261

申请日：2022-01-27

Applicant: Hitachi Astemo, Ltd.

Inventor： Naomichi YAMAGUCHI ,  Yuta TANAKA ,  Jin SATO

IPC: B60R16/023 ,  G01R31/54

CPC classification number: B60R16/0232 ,  G01R31/54

Abstract: A vehicle-mounted control device capable of detecting disconnection failure of a GND line 104 of an electronic control device 100 without adding a circuit and identifying between disconnection failure of the GND line 104 of the electronic control device 100 and disconnection failure of an electric load is realized. The vehicle-mounted control device 100 is supplied with a drive voltage from a voltage source 103 via the GND line 104 and drives a plurality of electric loads. Further, the vehicle-mounted control device 100 includes a voltage monitoring unit 114 that measures a voltage of the voltage source 103 to be supplied to the electric load; a current monitoring unit 114 that measures a current flowing through the electric load; a driving unit 115 that adjusts an energization amount of the electric load; a current cutoff determination unit 201 that determines whether the driving unit 115 cuts off the current flowing through the electric load; and a disconnection identification diagnosis unit 202 that identifies between a disconnection failure of the electric load and a disconnection failure of the GND line 104.

公开(公告)号：US20240039451A1

公开(公告)日：2024-02-01

申请号：US18266041

申请日：2021-12-03

Applicant: Hitachi Astemo, Ltd.

Inventor： Haruhiko FUJITA ,  Takuya USUI ,  Daisuke GOTO

IPC: H02P29/028 ,  H02M1/32

CPC classification number: H02P29/028 ,  H02M1/325

Abstract: A motor control apparatus controls a brake motor. The motor control apparatus includes a first motor driving portion, a first control portion, a second motor driving portion, and a second control portion. The second control portion is connected to the first control portion. The second control portion has s self-diagnosis function not provided to the first control portion. The second control portion monitors a state of a phase current in the first motor driving portion. For example, the second control portion determines that the first control portion is abnormal in a case where the waveform of the phase current in the first motor driving portion is outside a range of an expected current waveform.