Patents by Inventor Akihiko Hyodo
Akihiko Hyodo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220301424Abstract: Provided is a control system that can realize an efficient operation of a traveling body. The control system includes: a traveling route control unit configured to control information on a traveling path on which a traveling body travels; a traveling body position control unit configured to communicate with the traveling body and configured to control at least positional information on the traveling body; a lane setting unit configured to dynamically set a lane on the traveling path using at least the positional information on the traveling body and a size of the traveling body; and a control information setting unit configured to set control information for controlling traveling of the traveling body in the lane. The control system realizes an efficient operation of the traveling body.Type: ApplicationFiled: February 24, 2022Publication date: September 22, 2022Inventors: Hidenori SAKANIWA, Akihiko HYODO, Takashi MATSUMOTO, Akihiro KONDO
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Publication number: 20220270328Abstract: A drive assist apparatus includes a storage unit that stores a three-dimensional model indicating a moving region, an input unit that receives, from a sensor group installed in the moving region, first height information indicating a first height which is a height of the mobile object and second height information indicating a second height which is a height of an object that satisfies a predetermined distance criterion from the mobile object, an extraction unit that extracts, from the three-dimensional model, a first plan view based on the first height information and a second plan view based on the second height information, a generation unit that generates a combined map for two-dimensionally showing the moving region and assisting the driving of the mobile object by combining the first plan view and the second plan view, and an output unit that transmits a generated combined map to the mobile object.Type: ApplicationFiled: February 23, 2022Publication date: August 25, 2022Inventors: Hang LIU, Akihiko HYODO, Hidenori SAKANIWA
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Patent number: 11402228Abstract: A vehicle control system includes in-vehicle devices, a comparison unit, and an occupation management unit. The comparison unit calculates a section and time of a road occupied by a first vehicle and unavailable for another vehicle to travel based on the trajectory of the first vehicle generated by the trajectory generation unit. The occupation management unit adds the section and the time calculated by the comparison unit into the occupation information.Type: GrantFiled: September 8, 2020Date of Patent: August 2, 2022Assignee: Hitachi, Ltd.Inventors: Takashi Matsumoto, Akihiro Kondo, Akihiko Hyodo
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Publication number: 20210108940Abstract: Provided is a vehicle control system that can create a route using only an available road in advance when it is scheduled in advance that a part of a road is unavailable. The vehicle control system includes in-vehicle devices each mounted on a corresponding one of a plurality of vehicles and a computing device. The in-vehicle device receives a vehicle allocation plan including time and travel route information from the computing device. The computing device includes a storage unit that stores a vehicle allocation request, map information, and occupation information. The vehicle allocation request includes constraints on a first place, a second place, and time. The map information includes information relating to connection of roads on which a vehicle travels. The occupation information includes a section and time of a road that is occupied and unavailable for traveling.Type: ApplicationFiled: September 8, 2020Publication date: April 15, 2021Inventors: Takashi MATSUMOTO, Akihiro KONDO, Akihiko HYODO
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Publication number: 20210056838Abstract: A traffic-flow control device includes: a benchmark-vehicle operation input section that receives an input of a traveling state of a benchmark vehicle; a scenario input section that reads in a traveling scenario including definitions of target traveling states of a plurality of controlled vehicles using the traveling state of the benchmark vehicle; and a target setting section that computes the target traveling states of the controlled vehicles on the basis of the traveling state and the traveling scenario.Type: ApplicationFiled: November 21, 2018Publication date: February 25, 2021Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Akihiko HYODO, Yasuo SUGURE, Yoshinobu FUKANO
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Publication number: 20200279481Abstract: A server includes: an infrastructure linkage unit that acquires sensing information from an infrastructure sensor, an affected vehicle identification unit that identifies a vehicle that is affected by an obstacle as an affected vehicle, a passing ability determination unit that determines whether the affected vehicle is capable of passing by the obstacle, a route designing unit that designs a detour route on which the affected vehicle travels to avoid the obstacle point, when the passing ability determination unit determines the affected vehicle is not capable of passing, and a vehicle linkage unit that has a function of communicating with a plurality of in-vehicle devices, the vehicle linkage unit transmitting information about the detour route to the in-vehicle device installed in the affected vehicle among the plurality of in-vehicle devices.Type: ApplicationFiled: February 25, 2020Publication date: September 3, 2020Inventors: Akihiro KONDO, Takashi MATSUMOTO, Akihiko HYODO, Tsuneo SOBUE
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Patent number: 10467363Abstract: A fault simulation system that has a simulation unit comprising an ECU model including an element fault model made to have a fault by a time setting or external command and all or a portion of a sensor model, actuator model, vehicle model, and driver model and can evaluate vehicle behavior at the time of an element fault according to driving operation based on a set travel scenario, wherein the passage time, vehicle behavior, driving operation, and the like, at each point on a course are determined through non-fault simulation and on the basis of that information, an element fault is inserted according to a fault time setting or fault command for the element fault model.Type: GrantFiled: October 5, 2015Date of Patent: November 5, 2019Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Akihiko Hyodo, Yasuo Sugure, Shogo Nakao, Yoshinobu Fukano
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Publication number: 20190287391Abstract: Provided is a traffic demand prediction system for predicting traffic demand when a new event as a prediction target event occurs, the system including: a past event data base including information indicating a site of a past event which is an event held in the past and traffic demand data of the past event; a retrieving unit retrieving a past event held in a site coinciding with a site of the new event from the past event data base as a similar event; and a correcting unit reflecting the difference between the similar event retrieved by the retrieving unit and the new event to traffic demand data of the similar event.Type: ApplicationFiled: March 12, 2019Publication date: September 19, 2019Applicant: HITACHI, LTD.Inventors: Ryo OZAWA, Akihiko HYODO, Yasuo SUGURE
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Publication number: 20170316134Abstract: A fault simulation system that has a simulation unit comprising an ECU model including an element fault model made to have a fault by a time setting or external command and all or a portion of a sensor model, actuator model, vehicle model, and driver model and can evaluate vehicle behavior at the time of an element fault according to driving operation based on a set travel scenario, wherein the passage time, vehicle behavior, driving operation, and the like, at each point on a course are determined through non-fault simulation and on the basis of that information, an element fault is inserted according to a fault time setting or fault command for the element fault model.Type: ApplicationFiled: October 5, 2015Publication date: November 2, 2017Applicant: Hitachi Automotive Systems, Ltd.Inventors: Akihiko HYODO, Yasuo SUGURE, Shogo NAKAO, Yoshinobu FUKANO
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Patent number: 9606902Abstract: Provided is a malfunction influence evaluation system comprising a controller simulator that simulates the operation of a controller, an input apparatus that provides input data to the controller simulator, a simulation manager that exercises integrated management of the operation of the input apparatus and the controller simulator, and a database wherein malfunction information and simulation conditions to be referred to by the simulation manager is stored. The controller simulator retains a control program for the controller and an analysis unit, and the analysis unit has a propagation flag tracking function wherein propagation flags are assigned to a variable within the control program, bits of the variable are set by inputting a prescribed value thereto as a malfunction input value, the bits are propagated each time the variable is involved in a calculation within the control program, the states of propagation of the bits are tracked, and the result thereof is output.Type: GrantFiled: July 3, 2012Date of Patent: March 28, 2017Assignee: Hitachi, Ltd.Inventors: Akihiko Hyodo, Yasuo Sugure, Yasuhiro Ito, Tetsuya Yamada
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Patent number: 9194944Abstract: Disclosed is a measurement device that can accurately measure size, position, the presence of an object, and the like by means of a simple and low-cost method. Specifically, disclosed is a measurement device that is provided with: a transmitter that transmits radio waves; a vibrating surface that vibrates mechanically; a receiver that receives radio waves; and a controller that transmits radio waves from the transmitter, and on the basis of the signal of the radio waves reflected by the vibrating surface and received by the receiver, outputs information about a measured object on the pathway between the transmitter and the receiver with the vibrating surface therebetween.Type: GrantFiled: July 14, 2010Date of Patent: November 24, 2015Assignee: Hitachi, Ltd.Inventors: Tatsuo Nakagawa, Akihiko Hyodo, Hideaki Kurata, Shigeru Oho
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Publication number: 20150121148Abstract: Provided is a malfunction influence evaluation system comprising a controller simulator that simulates the operation of a controller, an input apparatus that provides input data to the controller simulator, a simulation manager that exercises integrated management of the operation of the input apparatus and the controller simulator, and a database wherein malfunction information and simulation conditions to be referred to by the simulation manager is stored. The controller simulator retains a control program for the controller and an analysis unit, and the analysis unit has a propagation flag tracking function wherein propagation flags are assigned to a variable within the control program, bits of the variable are set by inputting a prescribed value thereto as a malfunction input value, the bits are propagated each time the variable is involved in a calculation within the control program, the states of propagation of the bits are tracked, and the result thereof is output.Type: ApplicationFiled: July 3, 2012Publication date: April 30, 2015Inventors: Akihiko Hyodo, Yasuo Sugure, Yasuhiro Ito, Tetsuya Yamada
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Publication number: 20130113644Abstract: Disclosed is a measurement device that can accurately measure size, position, the presence of an object, and the like by means of a simple and low-cost method. Specifically, disclosed is a measurement device that is provided with: a transmitter that transmits radio waves; a vibrating surface that vibrates mechanically; a receiver that receives radio waves; and a controller that transmits radio waves from the transmitter, and on the basis of the signal of the radio waves reflected by the vibrating surface and received by the receiver, outputs information about a measured object on the pathway between the transmitter and the receiver with the vibrating surface therebetween.Type: ApplicationFiled: July 14, 2010Publication date: May 9, 2013Applicant: Hitachi, Ltd.Inventors: Tatsuo Nakagawa, Akihiko Hyodo, Hideaki Kurata, Shigeru Oho
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Patent number: 7956796Abstract: A system according to the invention detects location information of a vehicle by using a reflection strength change of an electromagnetic wave. The system incorporates a radiowave transmitter which emits a first radiowave, positional markers which generate unique reflection strengths and patterns of temporal changes in the reflection strength from the emitted first radiowave at respective absolute positions, a radiowave receiver which receives a second radiowave reflected by the positional marker and converts the second radiowave into a signal format for extracting location information to output the same, and a marker recognition device which obtains a location of the vehicle from the output of the radiowave receiver. Accordingly, a highly-precise location specification with a resolution smaller than or equal to 1 cm and a highly-reliable location specification which is not affected by slip and slide of the vehicle's wheels can be realized.Type: GrantFiled: May 6, 2009Date of Patent: June 7, 2011Assignee: Hitachi, Ltd.Inventors: Akihiko Hyodo, Shigeru Oho, Naoki Kato
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Publication number: 20100026562Abstract: Location information of a vehicle such as a railroad vehicle and an elevator cage is detected by using a reflection strength change of an electromagnetic wave. A system is configured by a radiowave transmitter which emits a first radiowave, positional markers which generate unique reflection strengths and patterns of temporal changes in the reflection strength from the emitted first radiowave at respective absolute positions, a radiowave receiver which receives a second radiowave reflected by the positional marker and converts the second radiowave into a signal format for extracting location information to output the same, and a marker recognition device which obtains a location of the vehicle from the output of the radiowave receiver. Accordingly, a highly-precise location specification with a resolution smaller than or equal to 1 cm and a highly-reliable location specification which is not affected by slip and slide of wheels can be realized.Type: ApplicationFiled: May 6, 2009Publication date: February 4, 2010Inventors: Akihiko Hyodo, Shigeru Oho, Naoki Kato
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Publication number: 20070021847Abstract: A distributed control system having a plurality of network-connected control units is realized in which a task having characteristics specific to a controller, such as input/output processing being necessary, or data stored in a dedicated controller having to be used, can be transferred to another controller for execution. In order to transfer a task specific to a controller to another controller for execution, a transfer source controller is provided with, in addition to an original function, a function of collecting input data of a storage area and context information and transferring them to a transfer destination controller. The destination controller has a function of storing the data transferred from the source controller in a storage area, making arithmetic operations, and sending the arithmetic result to the source controller. An arithmetic operation program is provided for both the source and destination controllers.Type: ApplicationFiled: February 15, 2006Publication date: January 25, 2007Inventors: Akihiko Hyodo, Naoki Kato, Fumio Arakawa
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Wobble plate type refrigerant compressor having a thrust bearing assembly for a wobble plate support
Patent number: 4981419Abstract: A thrust bearing assembly of a wobble plate type refrigerant compressor for supporting a non-rotatable inclined wobble plate on a rotatable drive element which rotates with a drive shaft, and having a inclined drive face able to convert a rotating motion of the drive element into a wobbling motion of the wobble plate to thereby cause a reciprocation of compression pistons in cylinder bores, the thrust bearing assembly having a plurality of roller elements, an annular retainer elements holding the roller elements therein and rotating in a space between the drive face of the drive element and an inclined face of the wobble plate confronting the drive face, a pair of race elements attached to the drive and inclined faces of the drive element and the wobble plate to provide raceways for rolling of the roller elements, and a circumferentially extended guide way element supplying the annular retainer elements with a constant slide guide during the operation of the compressor irrespective of a change in the operatinType: GrantFiled: August 15, 1989Date of Patent: January 1, 1991Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Hiroaki Kayukawa, Kenji Takenaka, Takashi Okamoto, Akihiko Hyodo -
Patent number: 4732545Abstract: A variable capacity wobble plate type compressor with a lubricator for oil-lubricating wobble plate bearings in a crankcase interior, which has an oil dam formed in an entrance of the central bore of a drive plate rotatably mounted on a compressor drive shaft for catching and preserving a lubricating oil scattered by a non-rotary wobble plate during wobbling in the crankcase interior and an oil supply conduit for supplying the preserved oil in the oil dam to the thrust and radial bearings by which the wobble plate is supported on the drive plate.Type: GrantFiled: November 7, 1986Date of Patent: March 22, 1988Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Masaki Ohta, Kenji Takenaka, Hiroaki Kayukawa, Akihiko Hyodo
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Patent number: 4729719Abstract: A variable displacement wobble plate type compressor with a variable angle non-rotary wobble plate, having a suction chamber for refrigerant returning from a refrigerating circuit via an evaporator, a discharge chamber for refrigerant after compression, suction and compression cylinder bores formed in a cylinder block, pistons reciprocating in the cylinder bores, a crankcase attached to the end of the cylinder block and receiving therein a drive and a wobble plate mechanism mounted about a drive shaft connectable to a rotary drive source, connected to the pistons to cause reciprocating motion of the pistons and capable of changing the wobble angle thereof and thereby change the strokes of the pistons, a first passageway for communicating the crankcase interior chamber with a discharge chamber to supply pressure acting as a back-pressure applied to the pistons, a control valve unit for closing and opening the first passageway, a second passageway extending through the drive shaft for communicating the crankcasType: GrantFiled: July 27, 1987Date of Patent: March 8, 1988Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Hiroaki Kayukawa, Masaki Ohta, Akihiko Hyodo, Kenji Takenaka
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Patent number: 4729718Abstract: The inclination angle of the wobble plate in a wobble plate type compressor is changed to obtain a discharge capacity in accordance with a cooling load. A spring is provided to adjust the inclination angle of the wobble plate in cooperation with the pressure force acting upon the pistons connected to the wobble plate, and thus the pressure in the suction chamber corresponding to the temperature of the exhausted air is kept at a constant level. That is, the temperature of the exhausted air is kept at a constant level suitable for maintaining a desired cooling condition in a vehicle.Type: GrantFiled: September 24, 1986Date of Patent: March 8, 1988Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Masaki Ohta, Shinichi Suzuki, Akihiko Hyodo, Kenji Takenaka