Patents Assigned to Hitachi
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Patent number: 12296806Abstract: A vehicle brake fluid pressure control device that restrains brake fluid pressure from decreasing counter to driver's intent during vehicle stop time pressure holding control is disclosed. The vehicle brake fluid pressure control device is capable of exercising vehicle stop time pressure holding control (time t2 to t3) under which brake fluid pressure is held when it is determined that a vehicle has been stopped; if a first condition which includes a condition that an amount of lateral motion of the vehicle (yaw rate Y) has become equal to or greater than a first specified value (Yth1) within a first specified time period (T1) elapsed from a time when determined that the vehicle has been stopped (time t2) is fulfilled (time t3) during the vehicle stop time pressure holding control, the vehicle stop time pressure holding control is canceled even without operation of an operation member for operating the vehicle.Type: GrantFiled: June 21, 2021Date of Patent: May 13, 2025Assignee: HITACHI ASTEMO UEDA, LTD.Inventors: Kanako Kogure, Takashi Kurosaki
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Patent number: 12300998Abstract: A device uses linking rules to process and optionally update a hierarchical substation model of a power system substation. The linking rules determine to which substation object at a first hierarchy level substation objects at a further hierarchy level of the hierarchical substation model are to be connected.Type: GrantFiled: June 3, 2020Date of Patent: May 13, 2025Assignee: HITACHI ENERGY LTDInventors: Theo Widmer, Lorenzo Santoro
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Patent number: 12296802Abstract: A vehicle brake fluid pressure control device that restrains a brake fluid pressure from decreasing counter to driver's intent during a vehicle stop time pressure holding control is disclosed. The vehicle brake fluid pressure control device is capable of exercising a vehicle stop time pressure holding control under which a brake fluid pressure is held when it is determined that a vehicle has been stopped. During the vehicle stop time pressure holding control (time t2 to t3), if a first condition which includes an amount of lateral motion (yaw rate Y) of the vehicle being equal to or greater than a specified value (Yth), and an absolute value (G) of frontward/rearward acceleration undergone by the vehicle being equal to or greater than a first threshold (G1) is fulfilled, the vehicle stop time pressure holding control is canceled (time t3) even without operation of an operation member for operating the vehicle.Type: GrantFiled: June 21, 2021Date of Patent: May 13, 2025Assignee: HITACHI ASTEMO UEDA, LTD.Inventor: Kanako Kogure
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Patent number: 12299947Abstract: An object of the present disclosure is to provide a technique capable of acquiring an analysis target region and color information without causing a decrease in extraction accuracy of the analysis target region due to erroneous extraction of a color of a colored label, measuring a solution volume of the specimen, and determining a specimen type. The biological specimen analysis device according to the present disclosure creates a developed view by cutting out a partial region from a color image of a biological sample tube and connecting the partial region along a circumferential direction of the biological sample tube, and extracts a detection target region from the developed view (see FIG. 6B).Type: GrantFiled: February 8, 2021Date of Patent: May 13, 2025Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Mayu Sao, Hirofumi Inomata, Fumiyasu Sato
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Patent number: 12301075Abstract: The reliability of a rotating electrical machine is improved. A method for manufacturing a stator used in a rotating electrical machine includes: a first step of arranging a first segment coil and a second segment coil to face each other; a second step of processing the first segment coil to generate a bridge part that comes into contact with the second segment coil; and a third step of joining the bridge part and the second segment coil by laser welding.Type: GrantFiled: November 4, 2020Date of Patent: May 13, 2025Assignee: Hitachi Astemo, Ltd.Inventors: Kenichi Nakayama, Akira Toba, Hiromitsu Okamoto, Teruaki Higuchi, Zhi Jing, Satoshi Yamamura
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Patent number: 12301071Abstract: A motor control device of the present invention is connected to a power converter for converting power from direct current power to alternating current power, and controls the drive of an alternating current motor that is driven using said alternating current power, and the motor control device is provided with: a carrier wave generator; a carrier wave frequency adjuster that adjusts the frequency of the carrier wave; and a gate signal generator that uses the carrier wave to pulse width modulate a voltage command according to a torque command, and generates a gate signal for controlling operation of the power converter, wherein the carrier wave frequency adjuster adjusts the voltage command and carrier wave phase difference to reduce eddy current loss generated in rotor magnets of the alternating current motor according to a d-axis current flowing to the alternating current motor and the rotational speed of the alternating current motor.Type: GrantFiled: March 1, 2021Date of Patent: May 13, 2025Assignee: HITACHI, LTD.Inventors: Takafumi Hara, Makoto Ito, Akeshi Takahashi, Toshiyuki Ajima
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Publication number: 20250145155Abstract: The present invention provides a vehicle movement control device to achieve both ride quality and minimization in travel time by setting a speed to make a physical quantity of an acceleration or jerk fall within a specified value in consideration of cooperation of longitudinal movement and lateral movement generated on a vehicle during travel. The vehicle movement control device includes: path command value calculation means that generates a path on which a vehicle travels; specified value setting means that sets a specified value of a physical quality of a vehicle behavior when traveling on the path; path feature point setting means that sets a path feature point based on the path and the specified value; and speed command value calculation means that calculates a speed for the vehicle to travel on the path based on the path, the specified value, and the path feature point.Type: ApplicationFiled: October 25, 2022Publication date: May 8, 2025Applicant: Hitachi Astemo, Ltd.Inventors: Shingo NASU, Kentarou UENO, Shinji SETO
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Publication number: 20250147850Abstract: A system managing apparatus decides a time optimum for executing data copying from a copy source volume to a copy destination volume, and manages an RPO requirement of a user and a quiescing time period for each application at the time of a copy start. The system managing apparatus calculates a copy execution time and a copy execution interval such that data in which application consistency is maintained can be acquired at an interval that satisfies the RPO. In addition, the system managing apparatus monitors the use status of an application and the use status of a copy line after the start of copy operation, and calculates a copy execution time and a copy execution interval that allow a return to an appropriate recovery point, taking into consideration an application quiescing time period and a period of time required for copy completion that change in real time.Type: ApplicationFiled: September 5, 2024Publication date: May 8, 2025Applicant: Hitachi Vantara, Ltd.Inventors: Noriko ICHIKAWA, Jun Nakajima
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Publication number: 20250147883Abstract: One object of the disclosure is to reduce a capacity of cached data, reduce a transfer volume, or reduce a management cost. One aspect of the disclosure is a computer system including a storage control unit and a storage apparatus. The storage control unit receives a notification of information on an operation mode determined by an operation mode determination unit based on processing executed by a processing execution unit. When an access request is received via a virtual volume from the processing execution unit in a case where target data is not stored in a cache volume, the storage control unit executes an access to a real volume. The storage control unit controls the cache volume based on the information on the operation mode.Type: ApplicationFiled: March 1, 2024Publication date: May 8, 2025Applicant: Hitachi, Ltd.Inventors: Mutsumi HOSOYA, Norio SHIMOZONO
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Publication number: 20250146451Abstract: Provided is an electronic control device that drives and controls a fuel injection valve, the electronic control device increasing a boost current of a booster circuit only in a scene where boosting energy needs to be increased by short-time boosting, and reducing the boost current of the booster circuit in other scenes. The electronic control device including; a booster circuit; a boost setting controller that holds boost control information of the booster circuit; a boost controller that controls an energizing current of the booster circuit based on a current setting value from the boost setting controller; and a fuel injection circuit that supplies current to a fuel injection valve using voltage generated by the booster circuit, in which the boost setting controller reduces a boost speed of the booster circuit when information on engine temperature is higher than a predetermined value.Type: ApplicationFiled: November 10, 2022Publication date: May 8, 2025Applicant: Hitachi Astemo, Ltd.Inventor: Koichi TSUKIO
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Publication number: 20250147789Abstract: The present disclosure enables appropriate collection and management of dependency relations regarding booting and/or shutdown of virtual elements and physical elements in a computer system. A dependency relation grasping system collecting and managing information in a computer system that has a plurality of servers and makes up a virtual machine by the plurality of servers, includes a processor. The processor is configured to acquire correlative relation information between a physical element and the virtual machine in the computer system, and identify dependency relations for booting and/or shutdown, between the virtual machine and the physical element, on the basis of the correlative relation information, and store, in a database, relationship information indicating the dependency relation.Type: ApplicationFiled: September 23, 2024Publication date: May 8, 2025Applicant: Hitachi, Ltd.Inventor: Yumiko OE
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Publication number: 20250147749Abstract: An object of the present invention is to obtain an update management system that makes it possible to perform writing and switching of a program in an ECU configuration having redundancy while a vehicle is traveling, even when the ECU configuration does not have a double-sided memory structure. An update management system of the present invention is mounted on a vehicle and includes: a plurality of arithmetic operation devices; and an update management device that controls the plurality of arithmetic operation devices. The plurality of arithmetic operation devices include at least a first arithmetic operation device and a second arithmetic operation device.Type: ApplicationFiled: August 24, 2022Publication date: May 8, 2025Applicant: HITACHI ASTEMO, LTD.Inventors: Tatsuaki NAGAI, Hideyuki SAKAMOTO, Yuji FUKUSHIMA, Tsutomu KANEKO, Takaaki NOKAIDO
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Publication number: 20250146985Abstract: To provide a method for controlling a liquid chromatograph mass spectrometer by which contamination of a mobile phase solvent caused by a foreign substance can be detected without using an internal standard substance. The method for controlling a liquid chromatograph mass spectrometer according to the present disclosure includes: calculating a first ratio of signal intensities at a first time point and a second time point when measurement is performed using a first mobile phase solvent; calculating a second ratio of signal intensities at the first time point and the second time point when measurement is further performed using a second mobile phase solvent; and determining whether or not the second mobile phase solvent is contaminated according to an absolute difference between the first ratio and the second ratio.Type: ApplicationFiled: September 21, 2022Publication date: May 8, 2025Applicant: HITACHI HIGH-TECH CORPORATIONInventors: Yuka Sugawara, Hiroyuki Yasuda, Riku Tamura, Tsugunao Toma, Yuichiro Hashimoto, Masuyuki Sugiyama
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Publication number: 20250145393Abstract: Provided are a conveying device and a conveying method capable of improving the position detection accuracy of the holder as compared with the related art. A conveying device 100 includes a coil 107 including a core 105 and a winding 106, a drive unit 108 that supplies a current to the winding 106, a current detection unit 109 that detects the value of the current flowing through the winding 106, and a control unit 110 that calculates the position of a holder 102, in which the control unit 110 calculates the position of the holder 102 based on the current value detected by the current detection unit 109 and the calibration curve obtained in advance, and changes the calibration curve used depending on how the drive voltage is applied by the drive unit 108.Type: ApplicationFiled: October 28, 2022Publication date: May 8, 2025Applicant: HITACHI HIGH-TECH CORPORATIONInventors: Shinji Azuma, Hiroshi Watanabe, Shigeru Yano
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Publication number: 20250147703Abstract: A first node performs copy (virtual copy) of address mapping between a virtual volume and a pool to a first virtual volume to create a third virtual volume in the first node. A second node performs mapping from a first pool volume in the second node to the third virtual volume in the first node, and links an address of the first pool volume, which is mapped to the third virtual volume, to an address of a second virtual volume in the second node.Type: ApplicationFiled: January 8, 2025Publication date: May 8, 2025Applicant: Hitachi Vantara, Ltd.Inventors: Takaki MATSUSHITA, Kazuki MATSUGAMI, Akira DEGUCHI, Norio SHIMOZONO, Shinichi HAYASHI
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Publication number: 20250147773Abstract: An arithmetic apparatus includes a memory, a non-volatile storage medium that stores a non-real-time OS, a management object program that cannot be activated simultaneously with another management object program, a background program that executes the management object program, and a management program that manages the management object program, and a central processing unit that executes the OS, the management object program, the background program, and the management program. The background program generates one or more temporary processes by the OS, and stores the management object program in the memory, selects a selection process that is one of the temporary processes, and associates the selection process with the management object program stored in the memory, and the management program causes the management object program associated with the selection process to operate, without generating a new process, when the management program receives a command to start the management object program.Type: ApplicationFiled: March 30, 2022Publication date: May 8, 2025Applicant: Hitachi, Ltd.Inventors: Sungho KIM, Yusaku OTSUKA
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Publication number: 20250147862Abstract: A processing device includes a storage unit that stores a software component database indicating a correspondence relationship between a software component including at least a source code and a software feature indicating characteristics of a software, and heterogeneous features correlation information indicating a correspondence relationship between the software feature and a system feature having a lower abstraction level than the software feature and indicating characteristics of a system, an input unit that receives a request feature list including one or more of the system features, a feature conversion unit that refers to the heterogeneous features correlation information and outputs the software feature corresponding to the system feature included in the request feature list, and a software component selecting unit that refers to the software component database and outputs as a software component selection result the software component corresponding to the software feature output by the feature converType: ApplicationFiled: February 7, 2022Publication date: May 8, 2025Applicant: Hitachi Astemo, Ltd.Inventor: Takafumi SUZUKI
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Publication number: 20250149909Abstract: Provided is a charging system that can appropriately assign a power conversion unit to an apparatus to be charged. For this purpose, a unit assignment section is configured to, when a new apparatus to be charged is connected to any of charging ports, reduce the number of assigned units preferentially for one, from among apparatuses to be charged for which the number of assigned units is plural, that involves a smaller reduction in charging power when the number of assigned units is reduced, and to assign the power conversion section in a vacant state resulting from the reduction to the newly connected device to be charged.Type: ApplicationFiled: January 18, 2023Publication date: May 8, 2025Applicant: HITACHI, LTD.Inventors: Takae SHIMADA, Kimihisa FURUKAWA, Yuuichi MABUCHI, Hiroshi KAMIZUMA, Yuki KAWAGUCHI
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Publication number: 20250146972Abstract: An electrolyte concentration measuring device measures an ion concentration of analyte ions contained in a liquid, and includes: an ion selective electrode to which the liquid is supplied; a reference electrode serving as a potential reference; and a control unit outputting the ion concentration of the analyte ions based on an electromotive force between the reference electrode and the ion selective electrode to, whereby the control unit obtains a selectivity coefficient of interfering ions that affect measurement of a concentration of the analyte ions or a value corresponding to a concentration of the interfering ions from a trained model by inputting a measured potential of a solution containing the analyte and interfering ions into the model, the model outputting the selectivity coefficient of the interfering ions or the value corresponding to the concentration of the interfering ions based on the potential of the solution containing the ions.Type: ApplicationFiled: November 29, 2022Publication date: May 8, 2025Applicant: Hitachi High-Tech CorporationInventor: Kotaro YAMASHITA
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Patent number: 12292023Abstract: Failure in ignition of a fuel by an ignition plug is reduced, and, at the same time, wearing of electrodes of the ignition plug in an internal combustion engine is suppressed. A control device 1 for an internal combustion engine includes an ignition control unit that controls energization of an ignition coil 300 that supplies electric energy to an ignition plug 200 that discharges in a cylinder 150 of the internal combustion engine 100 to ignite fuel. The ignition control unit controls the energization of the ignition coil 300 such that first electric energy is released from the ignition coil 300 and second electric energy is released in superposition with the first electric energy. At this time, the energization of the ignition coil 300 is controlled such that releasing of the second electric energy is stopped at a timing that depends on a state of gas around the ignition plug 200 so that the discharge of the ignition plug 200 is stopped.Type: GrantFiled: June 16, 2020Date of Patent: May 6, 2025Assignee: Hitachi Astemo, Ltd.Inventor: Eiichiro Ohata