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511.发明授权公开(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
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.
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公开(公告)号：US11898600B2
公开(公告)日：2024-02-13
申请号：US17185282
申请日：2021-02-25
Applicant: Hitachi Astemo, Ltd.
Inventor： Kenichi Mori , Takahiro Nakayama , Kazuki Ohta
IPC: F16C3/02
CPC classification number: F16C3/026 , F16C2326/06 , Y10S138/11
Abstract: A tube for a power transmission shaft is made of fiber-reinforced plastic, rotated to transmit power, and includes a main body in a shape of cylinder about an axis, wherein the main body has an outer diameter thereof gradually decreasing from a central portion thereof toward both ends thereof, and has a thickness thereof gradually decreasing from said both ends toward the central portion.
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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.
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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
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.
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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.
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Patent Agency Ranking
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.
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公开(公告)号：US20240034151A1
公开(公告)日：2024-02-01
申请号：US18022714
申请日：2021-05-07
Applicant: Hitachi Astemo, Ltd.
Inventor： Yusuke YAMAMOTO , Takao FUKUDA
CPC classification number: B60L3/0084 , B60L3/04 , B60L3/0007
Abstract: Provided is an electronic control unit mounted on an electrically driven vehicle, the electronic control unit being excellent in reliability and convenience in which recovery is easy while reliably shutting off a high-voltage power supply line at the time of collision of the vehicle or failure of a power supply shutoff circuit. The electronic control unit includes: an external load switching element that drives an external load; a controller that drives the external load switching element; a shutoff transistor that shuts off connection between an internal GND and an external GND or connection between an internal power supply system and an external power supply system; a diagnosis circuit that receives, as input, a diagnosis signal of a control circuit that controls the external load by the external load switching element, and a diagnosis signal of the controller, and outputs a diagnosis result; and an output holding circuit that holds an output signal of the diagnosis circuit, wherein the shutoff transistor shuts off the connection between the internal GND and the external GND or the connection between the internal power supply system and the external power supply system on the basis of the signal held by the output holding circuit.
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公开(公告)号：US20240025475A1
公开(公告)日：2024-01-25
申请号：US18044452
申请日：2021-09-06
Applicant: HITACHI ASTEMO, LTD.
Inventor： Atsushi HIRATA , Yasuhito NAKAKUKI , Tsukasa MIYAJIMA , Huajun LIU
CPC classification number: B62D6/008 , B62D15/0235
Abstract: A steer-by-wire steering apparatus according to the present invention includes: a reaction force actuator control section that controls an output amount of a reaction force actuator; a steering actuator control section that controls a steering actuator in response to a manipulation of a steering operation input member, the steering actuator steering steered wheels via a steering unit; a deviation recognition section that recognizes a deviation between a manipulation amount of the steering operation input member and a steering amount of the steering unit; and a reaction force actuator output boost section that, when the deviation increases, increases the output amount of the reaction force actuator. Thus, the steering reaction force can be appropriately controlled in correspondence with a response delay in the steering amount of the steering unit with respect to the manipulation amount of the steering operation input member.
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公开(公告)号：US11881846B2
公开(公告)日：2024-01-23
申请号：US17289320
申请日：2019-09-26
Applicant: Hitachi Astemo, Ltd.
Inventor： Keishi Komoriyama , Yoichiro Kobayashi
IPC: H03K17/08 , H03K17/082 , G01R1/20 , G01R19/00
CPC classification number: H03K17/0822 , G01R1/206 , G01R19/0092 , H03K2217/0027
Abstract: To prevent deterioration of current detection accuracy due to a difference in deterioration between a main MOS and a sense MOS. The load drive device includes a main MOS (101) for supplying a load current to a load, a sense MOS (102) to be used for detection of the load current, and an equalizer circuit (110) and a switch (120) which are provided in parallel between the source terminal of the main MOS and the source terminal of the sense MOS. The drain terminal of the main MOS and the drain terminal of the sense MOS have a common connection, and when a current is detected, the terminal voltage of the main MOS and the terminal voltage of the sense MOS are equalized by the equalizer circuit, and the switch is opened. When a current is not detected, the equalizer circuit is stopped and the switch short-circuits the source terminal of the main MOS and the source terminal of the sense MOS.
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公开(公告)号：US11878686B2
公开(公告)日：2024-01-23
申请号：US17283390
申请日：2019-10-08
Applicant: Hitachi Astemo, Ltd.
Inventor： Yoichi Iihoshi , Takashi Okada , Yuuki Okuda
CPC classification number: B60W30/16 , B60W30/18154 , B60W40/04 , B60W50/0097 , B60W50/14 , B60W2552/05 , B60W2554/802
Abstract: A driving assistance device controls the speed of an own vehicle based on a predicted traveling state of a preceding vehicle, and includes a traveling scene recognition unit that detects the distance until the preceding vehicle reaches an intersection, a determination unit that determines a traveling scene of the preceding vehicle at the intersection, and a calculation unit that selects the preceding vehicle prediction model according to the traveling scene determined by the determination unit from among a plurality of preceding vehicle prediction models recorded for each traveling scene in which the preceding vehicle travels, and inputs a distance until the preceding vehicle detected by the traveling scene recognition unit in the selected preceding vehicle prediction model reaches the intersection so as to calculate a predicted traveling state of the preceding vehicle after a predetermined time.
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