公开(公告)号：US20230209738A1

公开(公告)日：2023-06-29

申请号：US18008464

申请日：2021-05-20

Applicant: Hitachi Astemo, Ltd. ,  HITACHI, LTD

Inventor： Ryujo SUGAHARA ,  Hidetatsu YAMAMOTO ,  Daisuke TANAKA ,  Eiji ICHIKAWA ,  Michihito WATARAI ,  Hideyuki SAKAMOTO

IPC: H05K5/00 ,  H05K1/14 ,  H05K5/06

CPC classification number: H05K5/0069 ,  H05K1/14 ,  H05K5/069

Abstract: An electronic control device includes: a first board on which a bus bridge and an external communication connector are mounted; a second board on which an accelerator SoC is mounted, the second board being electrically connected to the first board; and a B-to-B connector capable of performing signal transmission between the bus bridge and the accelerator SoC.

公开(公告)号：US20230208233A1

公开(公告)日：2023-06-29

申请号：US18008247

申请日：2021-05-28

Applicant: HITACHI ASTEMO, LTD.

Inventor： Akeshi TAKAHASHI ,  Kenichi NAKAYAMA ,  Tetsuya SUTO ,  Keisuke TAKEUCHI

IPC: H02K3/28 ,  H02K15/00 ,  B60L53/20

CPC classification number: H02K3/28 ,  H02K15/0081 ,  B60L53/20 ,  H02K2213/03 ,  B60L2210/40 ,  B60L2200/26 ,  B61C3/00

Abstract: A rotating electric machine having high efficiency and high reliability without causing an increase in size and cost is realized. Each of the rectangular wire segment coils has a first region portion and a second region portion connected to the first region portion and formed in the circumferential direction including a bent portion in the circumferential direction of the stator core 10, and a pair of the rectangular wire segment coils adjacent to each other at the coil ends of the plurality of rectangular wire segment coils has a conductive portion to which the first region portion of one of the rectangular wire segment coils and the second region portion of the other of the rectangular wire segment coils are connected. The second region portion has a conductive portion cross-section disposed on the same plane as the end portion cross-section of the first region portion, and the conductive portion cross-section is a cross-section in a direction different from a direction of the coil vertical cross-section of the second region portion. Each of the plurality of layers includes a first layer in which the first region portion appears at an axial end portion and a second layer in which the second region portion appears at an axial end portion when the coil end is viewed in an axial direction of the rotating electric machine.

公开(公告)号：US20230198802A1

公开(公告)日：2023-06-22

申请号：US17781627

申请日：2020-09-08

Applicant: Hitachi Astemo, Ltd.

Inventor： Masakazu IKEDA

IPC: H04L12/40 ,  B60R16/023

CPC classification number: H04L12/40143 ,  B60R16/023 ,  H04L12/40182

Abstract: A frame is divided, and is then transferred on a communication protocol having a different frame size. Provided is a vehicle control device configured to transfer data through a first communication path for transferring data having a low priority and a second communication path for transferring data having a high priority, the second communication path having a transfer speed different from that of the first communication path. First transfer data transferable on the first communication path has a data size different from that of second transfer data transferrable on the second communication path. The second communication path allows at least two types of transfer data to be transmitted and received thereon. When the first transfer data is divided and is then transferred on the second communication path, the data is transferred by controlling at least one of a division size, the number of divisions, or a transfer timing of the first transfer data based on a timing cycle for transferring the second transfer data, a vacant time having no transfer, and a transfer time of the first transfer data on the second communication path.

公开(公告)号：US20230196194A1

公开(公告)日：2023-06-22

申请号：US17926939

申请日：2021-02-25

Applicant: Hitachi Astemo, Ltd.

Inventor： Ioannis SOUFLAS ,  Noyan SONGUR

IPC: G06N20/00

CPC classification number: G06N20/00

Abstract: A computer program product comprising computer-readable instructions that, when executed in a computer system including one or more computers, cause the computer system to receive a data set of a machine driven by a human or robot driver; condition said data set by grouping the data based on predefined or definable machine-control parameters; search the conditioned data for determining data imbalances within groups or sub-groups of the conditioned data; balance the data for which an imbalance was determined; and output the balanced data.

公开(公告)号：US20230194628A1

公开(公告)日：2023-06-22

申请号：US17925643

申请日：2021-01-29

Applicant: Hitachi Astemo, Ltd.

Inventor： Tomoki TAKAMOTO ,  Akeo SATOH ,  Akira KOTABE

IPC: G01R31/58 ,  G01R31/28

CPC classification number: G01R31/58 ,  G01R31/2884

Abstract: An object of the present invention is to provide a semiconductor device capable of diagnosing disconnection of a signal line that transmits a command signal in an inspection process even if the command signal is assumed not to be transmitted in the inspection process. A semiconductor device according to the present invention includes a first semiconductor integrated circuit and a control circuit, the control circuit includes a means for controlling a signal line in response to a response signal from the first semiconductor integrated circuit, and the control circuit further includes a means for controlling the signal line regardless of a signal from the first semiconductor integrated circuit.

公开(公告)号：US20230193865A1

公开(公告)日：2023-06-22

申请号：US17927179

申请日：2021-05-19

Applicant: Hitachi Astemo, Ltd.

Inventor： Shingo TAMURA ,  Satoshi USUI ,  Kazuaki TOKUMARU

IPC: F02M59/04 ,  F02M59/44

CPC classification number: F02M59/04 ,  F02M59/44

Abstract: The present invention provides a fuel pump capable of suppressing sticking of a plunger. The fuel pump of the present invention includes a plunger 2 that reciprocates, a cylinder 6 in which a guide hole 6a that guides the reciprocating motion of the plunger 2 extends in the axial direction, and a pump body 1 that holds the cylinder 6. The pump body 1 includes a cylinder insertion hole 1g into which the cylinder 6 is inserted, and a pressurizing chamber 11 that communicates with the cylinder insertion hole 1g and has a volume increased or decreased by the reciprocating motion of the plunger 2. The cylinder 6 includes a press-fitting portion 6b press-fitted into the inner peripheral surface of the cylinder insertion hole 1g, and a groove 6d formed at a position corresponding to the press-fitting portion 6b on the inner peripheral surface of the guide hole 6a.

公开(公告)号：US20230187305A1

公开(公告)日：2023-06-15

申请号：US17925423

申请日：2021-01-22

Applicant: Hitachi Astemo, Ltd.

Inventor： Hiromi SHIMAZU ,  Yujiro KANEKO ,  Yusuke TAKAGI

IPC: H01L23/367 ,  H01L25/07 ,  H01L23/00

CPC classification number: H01L23/3675 ,  H01L25/072 ,  H01L24/32 ,  H01L2224/32245 ,  H01L2924/1011 ,  H01L2924/1611 ,  H01L2924/16196 ,  H01L2924/16251 ,  H01L2924/1815 ,  H01L2924/182 ,  H01L2924/186

Abstract: A power module includes a first conductor plate to which a first power semiconductor element is bonded, a second conductor plate to which a second power semiconductor element is bonded, the second conductor plate being disposed adjacent to the first conductor plate, a first heat-dissipating member disposed counter to the first conductor plate and the second conductor plate, and a first insulating sheet member disposed between the first heat-dissipating member and the first conductor plate. The first power semiconductor element is disposed at a position at which a first length from an end of the first conductor plate, the end being closer to the second conductor plate, to the first power semiconductor element is larger than a second length from an end of the first conductor plate, the end being far from the second conductor plate, to the first power semiconductor element, and the second length is larger than the thickness of the first conductor plate.

公开(公告)号：US11674588B2

公开(公告)日：2023-06-13

申请号：US17200121

申请日：2019-07-05

Applicant: HITACHI ASTEMO, LTD.

Inventor： Kenji Fukasawa ,  Fumio Ohshima

IPC: F16H48/40 ,  F16H57/037 ,  F16H57/04

CPC classification number: F16H57/037 ,  F16H57/0424 ,  F16H57/0483 ,  F16H2700/00

Abstract: A differential case includes an outer shell wall portion configured to accommodate a pinion gear therein, and a first groove is formed in an inner surface of the outer shell wall portion on a back surface side of the pinion gear. In addition, a convex portion is formed on the inner surface of the outer shell wall portion on the back surface side of the pinion gear, and the first groove is formed in the convex portion. Further, a diameter of the convex portion is equal to or larger than a diameter of a back surface of the pinion gear.

公开(公告)号：US11668366B2

公开(公告)日：2023-06-06

申请号：US17570833

申请日：2022-01-07

Applicant: Hitachi Astemo, Ltd.

Inventor： Shunsuke Mori ,  Hiroshi Murakami

IPC: F16F9/46 ,  F16F9/34 ,  F16F9/48 ,  H01F7/08

CPC classification number: F16F9/46 ,  F16F9/34 ,  F16F9/48 ,  H01F2007/086

Abstract: A damping force adjustable shock absorber in2cludes an electromagnetic damping force adjustment device (17) having a damping force adjustment valve (18), and a solenoid (33) configured to variably adjust the damping force. The solenoid includes a coil (39) configured to generate a magnetic force by power supply, a movable iron core (43) located on an inner peripheral side of the coil, an anchor member (40) configured to attract the movable iron core. The movable iron core includes a thick cylindrical portion (43A) and a taper cylindrical portion (43B). The thick cylindrical portion includes a fixation hole (43A1) in which a shaft portion (44) is fixed. The taper cylindrical portion has an inner peripheral surface flaring so as to define a taper shape. A recessed portion (43A2) is formed around the fixation hole. The recessed portion allows hydraulic fluid to flow in an axial direction of the movable iron core.

公开(公告)号：US20230167871A1

公开(公告)日：2023-06-01

申请号：US17912635

申请日：2021-02-22

Applicant: HITACHI ASTEMO, LTD.

Inventor： Fumiyuki YAMAOKA

IPC: F16F9/512

CPC classification number: F16F9/5126 ,  F16F9/185

Abstract: A shock absorber includes a cylinder-side member having an inner cylinder, a piston-side member having a piston and a piston rod that move relative to the inner cylinder, and a phase correction communication passage. The phase correction communication passage is provided between a bottom-side oil chamber, which is one side chamber, and a rod-side oil chamber, which is the other side chamber. That is, the phase correction communication passage is provided in the inner cylinder which is the cylinder-side member and communicates the bottom-side oil chamber and rod-side chamber with each other. By having a spiral conduit that advances in the axial direction while spiraling (orbiting) multiple times at the same diameter, the phase correction communication passage is configured as a second damping mechanism which generates a force (an axial force) that advances the phase of the damping force.