-
公开(公告)号：US11781513B2
公开(公告)日：2023-10-10
申请号：US17784560
申请日：2020-12-11
Applicant: HITACHI ASTEMO, LTD.
Inventor： Kenichiro Tokuo , Hiroyuki Yamada , Kiyotaka Ogura , Shingo Tamura , Yuto Ishizuka
CPC classification number: F02M59/462 , F02M63/007 , F02M63/0071 , F02M63/0075 , F02M63/0077 , F02M63/0078
Abstract: Provided is a discharge valve mechanism capable of improving responsiveness when a discharge valve is opened, and a high-pressure fuel supply pump including the discharge valve mechanism.
-
公开(公告)号：US20230311976A1
公开(公告)日：2023-10-05
申请号：US18024880
申请日：2021-08-17
Applicant: Hitachi Astemo, Ltd.
Inventor： Toshinobu SUZUKI , Osamu YOSHIDA
IPC: B62D5/04
CPC classification number: B62D5/0454 , B62D5/0421
Abstract: An electric power steering device including a first bolt boss of a second housing provided on a first housing side relative to a worm-wheel accommodating portion of the second housing, and has a first female thread portion open on the first housing side and located within a plane area defined by connecting a second pinion shaft, a first bracket hole, and a second bracket hole; and a first bolt boss of the first housing provided to the first housing to be opposed to the first bolt boss of the second housing, and has a first bolt hole located within the plane area defined by connecting the second pinion shaft, the first bracket hole, and the second bracket hole and being formed through the first housing to be continuous with the first female thread portion of the first bolt boss of the second housing.
-
公开(公告)号：US20230308109A1
公开(公告)日：2023-09-28
申请号：US18040809
申请日：2021-06-29
Applicant: HITACHI ASTEMO, LTD.
Inventor： Nagamori HIRAKI , Tomonobu KOSEKI
CPC classification number: H03M1/1255 , H03M1/64 , H03M1/0626
Abstract: A signal processing device and a control method therefor comprise: a filter circuit including a first capacitor and reducing a predetermined frequency component of an analog signal; a sample-and-hold circuit including a second capacitor and sampling and holding the analog signal that has passed through the filter circuit; and an AD conversion circuit converting an output signal from the sample-and-hold circuit into a digital signal, and a predetermined voltage is applied to the second capacitor, thereby charging the second capacitor, and the sample-and-hold circuit is then caused to sample the analog signal that has passed through the filter circuit. This suppresses the time required to charge the first capacitor and reduces errors in digital signals.
-
公开(公告)号：US20230306796A1
公开(公告)日：2023-09-28
申请号：US18041701
申请日：2021-06-14
Applicant: HITACHI ASTEMO, LTD.
Inventor： Ryo TSUCHIYA , Kazuyoshi SERIZAWA , Koji MAEDA
IPC: G07C5/00
CPC classification number: G07C5/008
Abstract: The present invention addresses the problem of reducing the processor load of an integrated circuit that processes information aggregated in a zone architecture. A network engine (210) of this vehicle control device receives data containing a plurality of pairs of the information and a source address of the information according to a first communication protocol (Protocol A). The network engine (210) identifies a communication protocol (Protocol B, C) of a communication interface of a destination integrated circuit (SoC 220) corresponding to the source address of each item of the information. The network engine (210) sorts the information for each identified communication protocol, converts the sorted information into data of the identified communication protocol, and transmits each converted data item to the destination integrated circuit via the communication interface of the destination integrated circuit.
-
公开(公告)号：US11760203B2
公开(公告)日：2023-09-19
申请号：US17619736
申请日：2020-06-12
Applicant: Hitachi Astemo, Ltd.
Inventor： Kentarou Jyumonji
Abstract: A failure detection frequency of failure diagnosis for a cut-off function can be improved. An on-vehicle control device includes a microcomputer that performs a control operation of an external device, a monitoring element that monitors the microcomputer, an output drive circuit that sends a control signal to the external device based on an instruction from the microcomputer, a communication circuit that switches a communication state with another on-vehicle control device based on an instruction from the monitoring element, and an energization cut-off element that energizes and cuts off a power supply voltage to be supplied to the output drive circuit based on an instruction from the monitoring element. The monitoring element independently instructs the switching of the communication state by the communication circuit and the energization and cut-off of the power supply voltage by the energization cut-off element.
-
Patent Agency Ranking
公开(公告)号：US20230292470A1
公开(公告)日：2023-09-14
申请号：US17918985
申请日：2021-02-02
Applicant: Hitachi Astemo, Ltd.
Inventor： Keiko UENO , Yoshio KAWAI
IPC: H05K7/20
CPC classification number: H05K7/20409
Abstract: An electronic control device capable of improving cooling performance by air cooling is provided.
The electronic control device includes a circuit board 6 (board), a heat-generating component 7 (heating element) mounted on the circuit board 6, a heat dissipation material 12 (thermally conductive material) that is in contact with the heat-generating component 7 and conducts heat of the heat-generating component 7, a fin-integrated housing 3 (housing) that is in contact with the heat dissipation material 12 and covers the circuit board 6, and a cover 1 that covers the fin-integrated housing 3. The cover 1 has a hole (2) 8 and a hole (3) 9 as intake holes, and a hole (1) 2 as an exhaust hole. The hole (1) 2 is formed at a position close to the heat-generating component 7 relative to the hole (2) 8 and the hole (3) 9. The hole (2) 8 and the hole (3) 9 are formed at positions away from the heat-generating component 7 relative to the hole (1) 2.-
公开(公告)号：US11757336B2
公开(公告)日：2023-09-12
申请号：US17887263
申请日：2022-08-12
Applicant: Hitachi Astemo, Ltd.
Inventor： Tetsurou Tateyama , Kumiko Yoshinaga , Eiji Ichikawa , Hirofumi Watanabe , Mototaka Takahashi
Abstract: A wiring board (3) has first and second rigid sections (11, 12) each having six metal leaf layers, and a flexible section (13) having two metal leaf layers that connect the both rigid sections (11, 12). A capacitor unit (34) and a filter unit 31, which supplies power to an inverter, are mounted on the first rigid section (11), and a CPU (21) and a pre-driver circuit element (22) are mounted on the second rigid section (12). Mutually-independent two control systems are arranged so as to be symmetrical about a board center line (M). Detection signal lines (51) of rotation sensors (37, 38) located at the middle of the first rigid section (11) extend along the board center line (M) on the flexible section (13). Each of the two control systems is configured along a wiring direction of the detection signal lines (51).
-
公开(公告)号：US20230283125A1
公开(公告)日：2023-09-07
申请号：US18017911
申请日：2021-05-18
Applicant: Hitachi Astemo, Ltd.
Inventor： Masahiro HORI , Masanori SAWAHATA
Abstract: An object of the present invention is to improve the holding power of magnets used in the rotary electric machine. In a lateral cross section, magnets 112-1, 112-2 are arranged such that a q-axis side portion is located on an outer diameter side with respect to a d-axis side portion, and a magnet thickness Ti on an inner diameter side (d-axis side) of a rotor core 111 is formed to be larger than a magnet thickness To on the outer diameter side (q-axis side) of the rotor core 111. An axial space 120 is formed in the magnets 112-1, 112-2. The axial space 120 is formed such that when the lateral cross section of each of the magnets 112-1, 112-2 is divided into an outer diameter side region 112o and an inner diameter side region 112i in a manner that the lateral cross section areas are equal to each other with a circumference C around a rotation center as a boundary, a space density of the axial space 120 in the inner diameter side region 112i is larger than a space density of the axial space 120 in the outer diameter side region 112o.
-
公开(公告)号：US20230279920A1
公开(公告)日：2023-09-07
申请号：US18017862
申请日：2021-07-14
Applicant: HITACHI ASTEMO, LTD.
Inventor： Takamasa KOTANI
CPC classification number: F16F9/341 , F16F9/185 , F16F9/348 , F16F9/512 , F16F2222/12 , F16F2232/08 , F16F2228/066 , B60G13/08
Abstract: A shock absorber includes a first passage (92) through which a working fluid flows out from a chamber that is an upstream side to a chamber (23) that is a downstream side due to movement of a piston (21), a first damping force generating mechanism (41) provided in the first passage (92) to generate a damping force, a second passage (182) provided separately from the first passage (92), a second damping force generating mechanism (183) provided in the second passage (182) and opened to generate a damping force when a piston speed is lower than that of the first damping force generating mechanism (41), a third passage (512) provided separately from the second passage (182), a volume variable mechanism (186) provided in the third passage (512), a fourth passage (521) provided separately from the third passage (512), and a relief mechanism (522) provided in the fourth passage (521) and opened after the second damping force generating mechanism (183) is opened.
-
公开(公告)号：US11745731B2
公开(公告)日：2023-09-05
申请号：US17774457
申请日：2020-09-29
Applicant: HITACHI ASTEMO, LTD.
Inventor： Tatsunori Harai , Takashi Tsutsui
CPC classification number: B60W30/06 , B60W50/12 , B60W2510/20
Abstract: To obtain a vehicle control device capable of creating a route that facilitates tracing by a vehicle in autonomous driving and improving positional accuracy of the vehicle at the time of tracing. A vehicle control device (520) of the present invention includes an oversteer angle determination unit (508) that determines whether or not a steering angle of a vehicle (10) is an oversteer angle, a stationary steering determination unit (509) that determines whether or not stationary steering operation is performed on a vehicle, a route storage mode detection unit (505) that determines whether or not a route storage mode is set, a specific operation detection unit (507) that determines whether a steering angle is the oversteer angle or the stationary steering operation is performed in the route storage mode, and an output unit that outputs a control command of steering angle restriction control that restricts steering operation of a driver in the route storage mode in a case where the specific operation detection unit determines that a steering angle is the oversteer angle or the stationary steering operation is performed.
-
-
-
-
-
-
-
-
-
Search Results
1790
records
(took 0.026 seconds)
