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公开(公告)号：US20220017108A1
公开(公告)日：2022-01-20
申请号：US17414814
申请日：2019-10-11
Applicant: Hitachi Astemo, Ltd.
Inventor： Shigenobu KOMATSU , Hiroshi SHINODA , Hideyuki SAKAMOTO , Masaru KOKUBO , Hidetatsu YAMAMOTO
IPC: B60W50/02 , B60W50/029 , G07C5/08
Abstract: Provided is an in-vehicle control system capable of reducing an increase in cost accompanying advancement of a fallback operation. Therefore, the in-vehicle control system includes: a plurality of control circuits 3 and 4 respectively including control units that perform data communication with each other; an external environment recognition sensor a5; and a plurality of wirings 11, 12, 13, and 14 connecting the external environment recognition sensor a5 and the plurality of control circuits 3 and 4. The plurality of control circuits 3 and 4 include: a first power supply unit that supplies power to the external environment recognition sensor a5 via a corresponding wiring among the plurality of wirings 11, 12, 13, and 14; and a first detection unit that detects an abnormality related to the power supplied to the external environment recognition sensor a5. A control unit in a control device including a first detection unit that has detected the abnormality is controlled to acquire data of the external environment recognition sensor a5 from a control unit included in the other control device.
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公开(公告)号：US20250010882A1
公开(公告)日：2025-01-09
申请号：US18895041
申请日：2024-09-24
Applicant: Hitachi Astemo, Ltd.
Inventor： Hideyuki SAKAMOTO , Teppei HIROTSU , Taisuke UETA , Hidetatsu YAMAMOTO
IPC: B60W60/00 , G01S13/86 , G01S13/931 , G06N3/04 , G06V10/776 , G06V10/80 , G06V10/82 , G06V20/56
Abstract: There are realized a vehicle control device and an electronic control system with high reliability capable of safely shifting control even when an operation abnormality occurs in a sensor around a vehicle or an arithmetic block that processes sensor fusion. The vehicle control device includes a first arithmetic block which performs sensor fusion processing based on pieces of raw data output from a plurality of surrounding environment sensors, a second arithmetic block which performs sensor fusion processing based on pieces of object data generated by processing the pieces of raw data output from the plurality of surrounding environment sensors, and a third arithmetic block which diagnoses an output result of the first arithmetic block by using the output result of the first arithmetic block and an output result of the second arithmetic block.
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公开(公告)号：US20230288954A1
公开(公告)日：2023-09-14
申请号：US18013784
申请日：2021-04-16
Applicant: Hitachi Astemo, Ltd.
Inventor： Daisuke TANAKA , Hidetatsu YAMAMOTO
Abstract: There is provided an electronic control device that performs distributed processing using a plurality of microcomputers and can perform highly accurate time synchronization between the microcomputers with less delay without hindering arithmetic processing of each microcomputer. The device includes a plurality of microcomputers, and a waveform generation circuit connected between a master microcomputer serving as a time synchronization source and a slave microcomputer that performs time synchronization, among the plurality of microcomputers, wherein the master microcomputer outputs a reset signal synchronized with time to the waveform generation circuit, the waveform generation circuit outputs a waveform signal corresponding to a change in time of the master microcomputer, to the slave microcomputer, and the slave microcomputer measures a voltage value of the waveform signal and detects time corresponding to the measured voltage value.
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公开(公告)号：US20240184343A1
公开(公告)日：2024-06-06
申请号：US18286145
申请日：2022-02-04
Applicant: Hitachi Astemo, Ltd.
Inventor： Daisuke TANAKA , Hidetatsu YAMAMOTO
CPC classification number: G06F1/26 , H02J7/0063 , H03K17/56
Abstract: To achieve an electronic module capable of reducing dark current, which is current flowing when the electronic module is turned off, and contributing to prevention of battery wear of a vehicle or the like. Therefore, the electronic module connected to a first electronic module via a communication line includes: a microcomputer; a power supply IC that supplies power to the microcomputer; a power supply control circuit that supplies power from a battery power supply to the power supply IC; a control line connected to the communication line; and a first switch circuit that connects the control line and the power supply control circuit.
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Patent Agency Ranking
公开(公告)号：US20230004184A1
公开(公告)日：2023-01-05
申请号：US17782135
申请日：2020-09-17
Applicant: HITACHI ASTEMO, LTD.
Inventor： Nozomi KASAHARA , Yutaka UEMATSU , Hideyuki SAKAMOTO , Hidetatsu YAMAMOTO
Abstract: An electronic control device is connected via a cable to each of a plurality of sensors which outputs a sensor output for each data acquisition cycle determined in advance in accordance with a clock signal. The electronic control device includes a power supply unit configured to supply power to the sensor via the cable, an acquisition unit configured to acquire a feature amount directly or indirectly indicating a magnitude of radiation noise from at least one sensor among the plurality of sensors, a phase difference decision unit configured to decide a phase difference of a data acquisition cycle for each of the plurality of sensors based on the feature amount, and a control unit configured to transmit the phase difference to each of the plurality of sensors.
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公开(公告)号：US20220190874A1
公开(公告)日：2022-06-16
申请号：US17432288
申请日：2020-02-21
Applicant: Hitachi Astemo, Ltd.
Inventor： Yutaka UEMATSU , Hideyuki SAKAMOTO , Masahiro TOYAMA , Hidetatsu YAMAMOTO
Abstract: A signal transmission circuit that is connected to a communication unit by a signal wiring and performs signal transmission to/from the communication unit via the signal wiring includes: a direct-current supply unit that outputs a direct current with a variable output voltage, superimposes the direct current on the signal, and supplies the direct current to the communication unit via the signal wiring; a signal reception unit that receives the signal from the communication unit; and a signal processing unit that performs signal processing based on the signal received by the signal reception unit, wherein the signal reception unit has an equalizer function that adjusts a waveform of the signal to compensate for attenuation due to the signal wiring, and the output voltage is controlled based on an equalizer setting value used for control of the equalizer function.
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公开(公告)号：US20230232589A1
公开(公告)日：2023-07-20
申请号：US18009911
申请日：2021-05-20
Applicant: Hitachi Astemo, Ltd. , HITACHI, LTD.
Inventor： Ryujo SUGAHARA , Eiji ICHIKAWA , Hideyuki SAKAMOTO , Daisuke TANAKA , Hidetatsu YAMAMOTO , Michihito WATARAI , Minami TERANISHI
IPC: H05K7/20
CPC classification number: H05K7/20409 , H05K7/20154
Abstract: An electronic control device includes a housing including a first region in which heat dissipation fins are formed on one side and an electronic component generating the largest amount of heat is in thermal contact with the other side, and a second region in which an electronic component is in thermal contact with the one side and the other side.
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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
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.
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公开(公告)号：US20220089179A1
公开(公告)日：2022-03-24
申请号：US17425525
申请日：2020-01-15
Applicant: HITACHI ASTEMO, LTD.
Inventor： Hideyuki SAKAMOTO , Teppei HIROTSU , Taisuke UETA , Hidetatsu YAMAMOTO
IPC: B60W60/00 , G06V10/80 , G06V10/776 , G06V20/56 , G06V10/82 , G06N3/04 , G01S13/931 , G01S13/86
Abstract: There are realized a vehicle control device and an electronic control system with high reliability capable of safely shifting control even when an operation abnormality occurs in a sensor around a vehicle or an arithmetic block that processes sensor fusion. The vehicle control device includes a first arithmetic block which performs sensor fusion processing based on pieces of raw data output from a plurality of surrounding environment sensors, a second arithmetic block which performs sensor fusion processing based on pieces of object data generated by processing the pieces of raw data output from the plurality of surrounding environment sensors, and a third arithmetic block which diagnoses an output result of the first arithmetic block by using the output result of the first arithmetic block and an output result of the second arithmetic block.
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