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公开(公告)号：US20230239182A1
公开(公告)日：2023-07-27
申请号：US18009458
申请日：2021-02-26
Applicant: Hitachi Astemo, Ltd.
Inventor： Yasuhiro IKEDA , Yutaka UEMATSU , Hideyuki SAKAMOTO
CPC classification number: H04L25/03878 , H04B3/04
Abstract: An electronic control device includes a receiving unit that receives a data signal from an external device via a transmission line, a determination criterion selection unit that determines a determination criterion based on transition information of a waveform in the data signal, and a condition determination unit that determines a condition of a communication system including the external device, the receiving unit, and the transmission line based on a transmission waveform characteristic in the data signal and the determination criterion.
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公开(公告)号：US20220346267A1
公开(公告)日：2022-10-27
申请号：US17760581
申请日：2020-06-18
Applicant: HITACHI ASTEMO, LTD.
Inventor： Shinya KAWAKITA , Hideyuki SAKAMOTO , Minami TERANISHI , Miki HIRAOKA
IPC: H05K7/20
Abstract: An electronic control device includes: an electronic component; a base thermally coupled to the electronic component; a first fan and a second fan provided on one surface of the base; a plurality of first heat-dissipating fins provided on the one surface of the base and provided in a first region including a region between the first fan and the second fan; and a plurality of second heat-dissipating fins provided on the one surface of the base and provided in a second region farther from the first and second fans than the first region. The plurality of first heat-dissipating fins have a structure for guiding a refrigerant sent by one of the first fan and the second fan toward a remaining one of the first fan and the second fan in the first region. The plurality of second heat-dissipating fins formed in the second region have a structure for guiding a refrigerant flowing in from the first fan or the second fan to a side away from each of the first fan and the second fan.
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公开(公告)号：US20220293487A1
公开(公告)日：2022-09-15
申请号：US17636124
申请日：2020-04-20
Applicant: HITACHI ASTEMO, LTD.
Inventor： Minami TERANISHI , Hideyuki SAKAMOTO , Shinya KAWAKITA
IPC: H01L23/367 , H01L23/467 , H05K7/20
Abstract: An electrical device includes a first housing which has therein a first circuit board on which a first electronic component is mounted, a second housing which has therein a second circuit board on which a second electronic component is mounted, and fans which send air passing between the first housing and the second housing. The first housing has a plurality of fins facing the second housing. The second housing has a plurality of fins facing the first housing. In at least one of cross sections of the first circuit board in a thickness direction, the electrical device has a structure having a region in which the fin of the first housing is longer than the fin of the second housing and a region in which the fin of the first housing is shorter than the fin of the second housing.
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公开(公告)号：US20220118977A1
公开(公告)日：2022-04-21
申请号：US17428087
申请日：2020-02-06
Applicant: Hitachi Astemo, Ltd.
Inventor： Kenichi SHIMBO , Tadanobu TOBA , Hideyuki SAKAMOTO , Taisuke UETA
Abstract: An electronic control unit that is installed on a vehicle connected to a trailer and capable of towing the trailer changes travel control of the vehicle according to a type of the trailer when the trailer is connected to the vehicle.
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公开(公告)号：US20220058020A1
公开(公告)日：2022-02-24
申请号：US17428107
申请日：2020-01-29
Applicant: Hitachi Astemo, Ltd.
Inventor： Taisuke UETA , Tatsuya HORIGUCHI , Kenichi SHIMBO , Hideyuki SAKAMOTO
Abstract: An electronic control device includes a processing control unit and an information acquisition unit. The information acquisition unit collects external environment information and transfers the 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 processing configuration that executes non-redundant processing using the first processor and the second processor, and arithmetic processing by a redundant processing configuration that executes redundant processing using the first processor and the second processor, 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.
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Patent Agency Ranking
公开(公告)号：US20220017119A1
公开(公告)日：2022-01-20
申请号：US17295362
申请日：2019-11-27
Applicant: Hitachi Astemo, Ltd.
Inventor： Yuki TANAKA , Tatsuya HORIGUCHI , Teppei HIROTSU , Hideyuki SAKAMOTO
Abstract: Provided is an automatic driving system based on a model predictive control, the automatic driving system where, in an event of a failure of an actuator, identification between a real vehicle and a vehicle model is simplified. Based on information regarding the failure of the actuator, the automatic driving system updates a spot in the vehicle model, the spot corresponding to the spot of failure detected, to a fixed value, and causes an actuator control device for the actuator, where the failure is detected, to fix a command value that is overwritten in accordance with a state of the actuator. With this configuration, the identification between the real vehicle and the vehicle model is simplified.
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公开(公告)号：US20230273251A1
公开(公告)日：2023-08-31
申请号：US18015441
申请日：2021-07-12
Applicant: Hitachi Astemo, Ltd.
Inventor： Soshi SHIMOMURA , Yasuhiro IKEDA , Yutaka UEMATSU , Hideyuki SAKAMOTO
Abstract: A communication device includes: a transmitting circuit that repeatedly outputs a first prescribed signal to a transmission path at a prescribed cycle; a receiving circuit that receives a second prescribed signal repeatedly output at the prescribed cycle from another communication device via the transmission path; a waveform equivalence processing unit that performs waveform equivalence processing on the signal received by the receiving circuit; a holding unit that holds parameters of the waveform equivalence processing; a storage unit that stores information on a signal propagation speed in the transmission path, duration of a prescribed cycle, and a transmission rate; and an abnormality position determining unit that calculates a distance to a position of an abnormality in the transmission path using information on the parameter caused by the abnormality of the transmission path among the parameters and the information stored in the storage unit.
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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：US20220017107A1
公开(公告)日：2022-01-20
申请号：US17414795
申请日：2019-11-20
Applicant: Hitachi Astemo, Ltd.
Inventor： Hiroshi SHINODA , Hideyuki SAKAMOTO
IPC: B60W50/02 , B60W50/029 , B60W50/035 , B60W60/00
Abstract: An autonomous drive ECU 1 includes: at least two microcomputers 10 and 30 capable of receiving sensing data from a plurality of sensors 61; failure detection units 11 and 31 that detect a failure of the plurality of sensors 61 or the microcomputers 10 and 30; a mode selection unit 33 that selects a normal operation mode and a fallback operation mode; and a sensor selection unit that selects the sensor 61 based on a failure part detected by the failure detection unit 31 or a surrounding situation of an own vehicle calculated from the sensing data. Any of the at least two microcomputers 10 and 30 generates a drive signal for operating an actuator using the sensing data received from the sensor 61 selected by the sensor selection unit in the case of the fallback operation mode.
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