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公开(公告)号：US12007303B2
公开(公告)日：2024-06-11
申请号：US17639372
申请日：2020-08-25
Applicant: Hitachi Astemo, Ltd.
Inventor： Takanori Ito , Takayuki Ohno , Masafumi Iwamoto
CPC classification number: G01M3/04 , G01M3/2869
Abstract: This seal state detection device includes a plurality of part case members including a cylinder facing part and a rod facing part and are aligned in a circumferential direction of a cylinder by causing the cylinder facing part to face the cylinder and the rod facing part to face a rod so that a housing chamber for housing a part of the cylinder and a part of the rod is formed between the cylinder facing part and the rod facing part. The cylinder facing part includes a seal part which contacts with the cylinder. The seal part includes a protruding part formed at one end and a recessed part formed at the other end in the circumferential direction of the cylinder. The protruding part and the recessed part are fitted to each other when the plurality of part case members are aligned in the circumferential direction of the cylinder.
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公开(公告)号：US12005990B2
公开(公告)日：2024-06-11
申请号：US17240479
申请日：2021-04-26
Applicant: HITACHI ASTEMO, LTD.
Inventor： Naoya Kuroiwa , Yosuke Murakami
CPC classification number: B62K25/08 , F16F9/182 , F16F9/185 , F16F9/464 , B62K2025/044 , F16F13/007 , F16F2222/12 , F16F2228/066 , F16F2230/18 , F16F2230/186 , F16F2232/08 , F16F2234/02
Abstract: A hydraulic shock absorber includes an enclosure member. The enclosure member has an inflow path which guides oil from the outside to the inside. The inflow path is arranged so that an axis of the inflow path deviates from a central axis of a rod.
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公开(公告)号：US20240188252A1
公开(公告)日：2024-06-06
申请号：US18524763
申请日：2023-11-30
Applicant: Hitachi Astemo, Ltd. , HONDA MOTOR CO., LTD.
Inventor： Daiki KUDO , Yoshiharu TANABE , Kohei NAKANO , Hiroyuki NAKADE , Kenichi SASAKI , Takahiro UNEME , Ryuta WAKABAYASHI
CPC classification number: H05K7/20272 , H05K7/14322 , H05K7/20927
Abstract: An electronic device includes a supply refrigerant pipe that is connected to an opening end. The supply refrigerant pipe has a connection opening end that is directly connected to the opening end, a refrigerant pipe-side reduced diameter flow path in which flow path area decreases with increasing distance from the connection opening end, and a small diameter flow path connected to an end portion of the refrigerant pipe-side reduced diameter flow path on a side opposite to the connection opening end A main body case has, as parts of the refrigerant flow path, a case-side reduced diameter flow path in which flow path area decreases with increasing distance from the opening end, and a flat flow path formed in a shape flatter than the small diameter flow path and connected to an end portion of the case-side reduced diameter flow path on a side opposite to the opening end.
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公开(公告)号：US20240187987A1
公开(公告)日：2024-06-06
申请号：US18552559
申请日：2022-03-01
Applicant: HITACHI ASTEMO, LTD.
Inventor： Ryo FUKUDA
CPC classification number: H04W52/0225 , H04L67/12
Abstract: An object is to provide a communication device capable of appropriately storing communication information for specifying another device that performs communication at an abnormal timing. A communication device 10 is a communication device that is mounted on a vehicle and communicates with other devices. The communication device 10 includes a communication monitoring unit 40 that monitors communication with another device and accumulates communication information for specifying another device that performs communication, a storage medium 30 that stores the communication information, and a timer 22 that counts a duration of a wake-up state of the communication device 10. When the duration of the wake-up state has passed a predetermined time, the communication monitoring unit 40 stores the accumulated communication information in the storage medium 30.
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公开(公告)号：US20240186822A1
公开(公告)日：2024-06-06
申请号：US18285670
申请日：2021-08-20
Applicant: Hitachi Astemo, Ltd.
Inventor： Masafumi YAMAMOTO , Takumi MASUBUCHI
Abstract: A power supply control device includes: a plurality of power supply circuits; a control circuit that controls the power supply circuits; an output current monitor that monitors output currents of the power supply circuits; and a storage unit in which any one of a plurality of operation modes for controlling the power supply circuits is settable. The control circuit controls the power supply circuits based on the operation mode set in the storage unit and the output currents monitored by the output current monitor.
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Patent Agency Ranking
公开(公告)号：US20240174230A1
公开(公告)日：2024-05-30
申请号：US18553288
申请日：2022-02-28
Applicant: HITACHI ASTEMO, LTD.
Inventor： Takayuki SAITO , Masashi SEIMIYA , Taku TAKAHAMA , Keisuke TAKEUCHI , Yuta TSURUMOTO , Seiya ISHII
CPC classification number: B60W30/143 , B60W30/16 , G06V20/58 , G06V20/588 , H04W4/46 , B60W2420/403 , B60W2552/53 , B60W2554/4041 , B60W2554/4045 , B60W2554/802 , B60W2556/10 , B60W2556/65
Abstract: An object of the present invention is to provide a vehicle control device capable of improving ride comfort of a driver. A lane change detection unit 205 of a vehicle control device 200 determines a possibility of cut-in of an adjacent vehicle immediately in front of an own vehicle on the basis of an adjacent vehicle relationship value (for example, a relative speed between the own vehicle and the adjacent vehicle) in an advancing direction. An acceleration/deceleration control unit 206 corrects acceleration/deceleration of the own vehicle on the basis of the possibility of the cut-in determined on the basis of the adjacent vehicle relationship value in the advancing direction.
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公开(公告)号：US11993253B2
公开(公告)日：2024-05-28
申请号：US17055475
申请日：2019-05-15
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Katsuro Watanabe , Shigenori Hayase , Shunsuke Katoh
CPC classification number: B60W30/06 , B60L58/12 , B60W50/0097 , B60W50/14 , G08G1/14 , B60W2050/146 , B60W2510/244 , B60W2520/10 , B60W2520/12
Abstract: The present invention provides a vehicle control device capable of avoiding a problem due to insufficient energy remaining in a vehicle in a parking lot. The vehicle control device 100 includes a remaining energy amount calculation unit 110, a parking lot information acquisition unit 120, a prediction unit 130, a required energy amount calculation unit 140, and a parking determination unit 150. The remaining energy amount calculation unit 110 calculates a remaining amount of energy of a vehicle V. The parking lot information acquisition unit 120 acquires map information and other vehicles information of a parking lot. The prediction unit 130 predicts a traveling speed and a movement time of the vehicle V at the time of entry and exit. The required energy amount calculation unit 140 calculates a required amount of energy. The parking determination unit 150 determines whether or not the vehicle V can be parked based on the remaining amount of energy and the required amount of energy.
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128.发明公开公开(公告)号：US20240171107A1
公开(公告)日：2024-05-23
申请号：US18281731
申请日：2021-08-31
Applicant: Hitachi Astemo, Ltd.
Inventor： Shun TANIGUCHI , Noriya NAKAO , Kazuaki TOBARI , Toshiyuki AJIMA , Kentaro MATSUO
IPC: H02P25/024 , H02P21/14 , H02P21/22 , H02P27/08
CPC classification number: H02P25/024 , H02P21/141 , H02P21/22 , H02P27/08
Abstract: Disclosed is a synchronous machine control device capable of suitably executing stabilization control of a synchronous machine. This synchronous machine control device controls a power converter (2) to which a synchronous machine (1) is connected, and comprises: a first magnetic flux command calculation unit (21) that calculates a first magnetic flux command value from an electric current command value of the synchronous machine; a magnetic flux estimation unit (23) that estimates a magnetic flux value of the synchronous machine from an electric current detection value of the synchronous machine; a voltage calculation unit (19) that generates a voltage command value for the power converter such that the first magnetic flux command value and the magnetic flux value match; and a damping ratio control unit (27) that, on the basis of a vibration component of the magnetic flux value, generates a correction amount for the voltage command value such that the vibration component is damped.
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129.发明公开公开(公告)号：US20240166177A1
公开(公告)日：2024-05-23
申请号：US18282611
申请日：2022-03-07
Applicant: Hitachi Astemo, Ltd.
Inventor： Suguru SAOTOME , Hirohito TADA , Norikazu MATSUZAKI , Masayuki KIKAWA
CPC classification number: B60T8/172 , B60T8/171 , B60T13/588 , B60T13/746 , H02P3/04 , B60T13/145
Abstract: In an application, which refers to holding actuation of a parking brake mechanism (a rotation-linear motion conversion mechanism), a braking control apparatus (a parking brake control apparatus) determines an application stroke from a load detection point including as far as an overshoot amount. The load detection point is a generation point of a thrust force that is detected due to a current flowing in the electric motor. The overshoot amount is generated based on a rotation of an electric motor due to inertia after driving of the electric motor is stopped. The braking control apparatus determines a target release stroke in a release, which is release actuation of the parking brake mechanism, according to the application stroke. The braking control apparatus outputs a control instruction to conduct the release based on the target release stroke.
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公开(公告)号：US20240161956A1
公开(公告)日：2024-05-16
申请号：US18282585
申请日：2022-03-04
Applicant: Hitachi Astemo, Ltd.
Inventor： Yasuo SHIMA , Yoichiro KOBAYASHI
IPC: H01F7/18
CPC classification number: H01F7/1844 , H01F7/1811 , H01F2007/1888
Abstract: A load drive device that drives and controls an inductive load based on a PWM signal from a microcomputer is provided, and the load drive device has excellent reliability and responsiveness capable of quickly detecting disconnection of the inductive load. The load drive device includes a microcomputer and a driver circuit that drives an inductive load by a pulse width modulation signal of a constant cycle based on a control command from the microcomputer, in which the driver circuit includes a current monitoring circuit that monitors a current flowing through the inductive load, and a disconnection diagnosis circuit that detects disconnection of the inductive load based on a current value detected by the current monitoring circuit, and the disconnection diagnosis circuit obtains a change amount of a current value detected by the current monitoring circuit, and when the change amount is equal to or less than a predetermined threshold, determines that the inductive load is disconnected and notifies the microcomputer of the disconnection.
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