Patents Assigned to Kabushiki Kaisha Toyota Jidoshokki
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Patent number: 11901829Abstract: A power converter includes an alternating-current-side circuit, a direct-current-side inductor, an alternating-current-side inductor, a direct-current-side circuit, a controlling unit, a transformer, a direct-current-side capacitor, and an alternating-current-side capacitor. The alternating-current-side circuit includes an alternating-current-side buffer circuit and a bridge circuit, and is connected to an alternating-current-side winding of the transformer via the alternating-current-side capacitor. The direct-current-side circuit includes a direct-current-side buffer circuit and a rectification switching element, and is connected to a direct-current-side winding of the transformer via the direct-current-side capacitor. The controlling unit controls switching of the switching elements.Type: GrantFiled: September 6, 2022Date of Patent: February 13, 2024Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Sadanori Suzuki
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Patent number: 11892480Abstract: A voltage detection unit includes a voltage detection terminal including a first portion configured to be conductively connected to a detection target and a second portion, a housing having a plate shape and including a terminal accommodating concave configured to accommodate the voltage detection terminal, a cover configured to be engaged with the housing at a temporary locking position at which the cover does not cover the first portion of the voltage detection terminal accommodated in the terminal accommodating concave and at a final locking position at which the cover covers the first portion and an electric wire conductively connected to the voltage detection terminal at the second portion and configured to, when the voltage detection terminal is accommodated in the terminal accommodating concave, be drawn out from the housing.Type: GrantFiled: April 21, 2022Date of Patent: February 6, 2024Assignees: YAZAKI CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Yutaro Okazaki, Shinichi Yanagihara, Satoshi Morioka, Motoyoshi Okumura, Hiromi Ueda, Naoto Morisaku, Motoo Nojima, Ryosuke Murata
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Patent number: 11890992Abstract: A vehicle electric fluid machine includes: a housing provided with a mounting leg; a fastener having a shaft portion and a head portion at one end of the shaft portion, the fastener fastening the other end of the shaft portion to a mounting object; a sleeve disposed between the mounting leg and the shaft portion; elastic vibration dampers each having a cylindrical portion and a collar extending from one of opposite ends of the cylindrical portion in its radial outward direction; and an annular plate through which a fastening force is applied to the mounting leg. The annular plate has an elongated protrusion protruding toward the mounting leg, the elongated protrusion spaced from the collar with a predetermined clearance formed radially outside the collar. A deformation limit of the collar is defined by the elongated protrusion being in contact with the collar.Type: GrantFiled: March 18, 2022Date of Patent: February 6, 2024Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Ryuji Watanabe, Suehiro Fukazawa, Noritaka Nishimori, Takayuki Kato
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Publication number: 20240039351Abstract: A rotor of a rotating electrical machine includes a cylindrical member; a magnetic material disposed inside the cylindrical member; a shaft member disposed on at least one of opposite ends of the cylindrical member in an axial direction of the cylindrical member and fixed to an inner peripheral surface of the cylindrical member with the shaft member located adjacent to the magnetic material in the axial direction of the cylindrical member; and a welding portion via which the cylindrical member and the shaft member are welded together. The shaft member has a fitting portion that is press-fitted onto the inner peripheral surface of the cylindrical member. The fitting portion is located closer to the magnetic material than to the welding portion. The welding portion is spaced from the fitting portion in the axial direction.Type: ApplicationFiled: November 12, 2021Publication date: February 1, 2024Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Yoshihiro KATAGIRI
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Patent number: 11889668Abstract: A DC/DC converter includes a metal case, a power converter accommodated in the case, a substrate, and a temperature sensor mounted on a surface of the substrate. The case includes a bottom wall, a side wall extending from the bottom wall, a boss, and a coupling portion. The coupling portion couples the side wall to the boss. The coupling portion extends from the bottom wall along an axis of the boss and along a surface of the side wall. The temperature sensor is arranged to face the coupling portion.Type: GrantFiled: December 19, 2019Date of Patent: January 30, 2024Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Ryoto Tsuchiya, Masayoshi Kobayashi, Tatsuya Goto, Kazuji Yamazaki
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Patent number: 11888359Abstract: A motor-driven compressor includes a compression portion, an electric motor, an inverter, and a metal housing. The inverter includes three-phase switching elements and a plastic holder that retains the three-phase switching elements. The housing includes a thermal radiation surface. The holder includes a metal spring. The holder is fixed to the housing using two fasteners. The three-phase switching elements are laid out between the two fasteners. The switching elements at opposite ends of the three-phase switching elements are pressed toward the thermal radiation surface by only the holder. The switching element at the middle of the three-phase switching elements is pressed toward the thermal radiation surface by the holder and the spring.Type: GrantFiled: March 28, 2022Date of Patent: January 30, 2024Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Koki Shinohara, Junya Yano, Yusuke Kinoshita, Kenji Momma
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Publication number: 20240026921Abstract: A foil bearing includes a bearing housing, a top foil, and a bump foil. The bump foil has: a first portion, a second portion, and a third portion disposed at least between the first portion and the second portion and configured to come in contact with the top foil. The top foil applies a load to the second portion with displacement of the top foil in a radially outward direction of the bearing housing. The third portion is not in contact with the top foil when the load is equal to or lower than a predetermined load, and is in contact with the top foil with elastic deformation of the second portion when the load is higher than the predetermined load. The first portion is in surface contact with the inner peripheral surface.Type: ApplicationFiled: July 13, 2023Publication date: January 25, 2024Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Fumiya SHINODA, Fumihiro SUZUKI
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Publication number: 20240030833Abstract: An inverter including two switching elements of an inverter circuit connected in series to each other, drivers configured to respectively drive switching elements, and protection circuits each configured to transmit an output signal of the driver to each of the switching elements via a first resistor element. The protection circuit includes a second resistor element arranged to be electrically connectable in parallel to a first resistor element and a switch configured to switch between a first state in which electrical parallel connection of the second resistor element to the first resistor element is enabled and a second state in which the connection is cancelled. The protection circuit is configured to determine whether a short-circuit current has been generated in a first pattern or a second pattern and switch the switch to the first state in a case of determining that the short-circuit current of the second pattern has been generated.Type: ApplicationFiled: July 10, 2023Publication date: January 25, 2024Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Yusuke SHINTANI
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Publication number: 20240021933Abstract: A power storage module includes: a stack including power storage cells stacked in a first direction and having stack side surfaces that extends in the first direction; and a sealing member formed in contact with the stack side surfaces. The power storage cells each includes: a first electrode including a first electrode plate having a first surface and a first active material layer formed on the first surface; a second electrode including a second electrode plate having a second surface and a second active material layer having an electrode polarity different from that of the first active material layer and formed on the second surface; and a spacer. A portion of the sealing member disposed on at least one of the stack side surfaces serves as a low elastic modulus portion that has an elastic modulus lower than that of the spacer.Type: ApplicationFiled: October 5, 2021Publication date: January 18, 2024Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Yuki OKAMOTO, Osamu OHMORI, Kayo MIZUNO, Mutsumi TAKAHASHI, Kanae MURASE
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Publication number: 20240018966Abstract: A centrifugal compressor includes a rotary shaft, an electric motor, an impeller, a thrust bearing, and a housing having a passage that includes a motor cooling passage and a bearing cooling passage. The housing includes an inner housing and an outer housing. The motor cooling passage is defined by the inner housing and the outer housing. The passage includes a branching passage through which cooling fluid is divided and flows into the motor cooling passage and the bearing cooling passage and a joining passage through which the cooling fluid flowing through the bearing cooling passage joins the cooling fluid flowing through the motor cooling passage. The motor cooling passage includes a guide wall that guides the cooling fluid flowing through the motor cooling passage.Type: ApplicationFiled: June 30, 2023Publication date: January 18, 2024Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Takayuki HIRANO
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Publication number: 20240006666Abstract: A power storage device includes power storage cells that includes a positive electrode, a negative electrode, a separator, and an accommodation chamber accommodating a liquid electrolyte in a liquid-tight manner. The power storage device includes a cell stack in which the power storage cells are stacked in series. A side surface of the cell stack is covered with a seal portion made of a plastic. The terminal positive electrode current collector and the terminal negative electrode current collector located in the outermost layer of the cell stack are made of a high thermal conductivity material having a thermal conductivity greater than or equal to 100 W/(m·K). The power storage device includes a positive electrode cooling unit, which cools the terminal positive electrode current collector, and a negative electrode cooling unit, which cools the terminal negative electrode current collector. The liquid electrolyte contains an oxalate compound.Type: ApplicationFiled: November 19, 2021Publication date: January 4, 2024Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Yushi KONDO, Osamu OHMORI, Tomoyuki KAWAI, Takeshi KATAYAMA, Yusuke YAMASHITA
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Patent number: 11859629Abstract: A turbo fluid machine includes a rotary shaft configured to rotate in one rotational direction, and a thrust foil bearing that includes: a plurality of bump foils each having a corrugated shape and a plurality of top foils each having a bearing surface that faces a thrust collar. Each bump foil is divided into an outer peripheral foil and an inner peripheral foil in a radial direction of the rotary shaft. Ridges on the outer peripheral foil are inclined in the other rotational direction of the rotary shaft while extending from an edge of the outer peripheral foil adjacent to an inner peripheral side toward an outer peripheral side, and the ridges on the inner peripheral foil are inclined in the other rotational direction while extending from an edge of the inner peripheral foil adjacent to the outer peripheral side toward the inner peripheral side.Type: GrantFiled: September 29, 2022Date of Patent: January 2, 2024Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Fumiya Shinoda, Fumihiro Suzuki, Ryo Umeyama
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Publication number: 20230417245Abstract: A scroll compressor includes a housing, a first scroll, a second scroll being configured to rotate relative to the first scroll about a driving axis of the scroll compressor. The second scroll has an end plate, a spiral element, and an adjustment portion adjusting a center-of-gravity of the second scroll. The adjustment portion has a bottom surface, a peripheral surface enclosing the bottom surface, and a connection surface connecting the bottom surface to the peripheral surface. The peripheral surface has a first peripheral surface and a second peripheral surface. A length of the first peripheral surface in a direction in which the driving axis extends is shorter than a length of the second peripheral surface in the direction in which the driving axis extends.Type: ApplicationFiled: June 26, 2023Publication date: December 28, 2023Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Ken NAMIKI, Takuro Yamashita, Shiori Yamamoto
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Publication number: 20230417581Abstract: An industrial vehicle control device for controlling an industrial vehicle includes: a first signal acquisition unit that acquires a first signal; a second signal acquisition unit that acquires a second signal; a data processing unit that performs data processing based on time-series data of the first signal and the second signal; and a state estimation unit that estimates a state of the industrial vehicle by distinguishing results of the data processing.Type: ApplicationFiled: June 15, 2023Publication date: December 28, 2023Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Mitsuru KAWAMOTO, Hironobu OKAMOTO
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Patent number: 11855503Abstract: A motor-driven compressor includes a plurality of motor wires and an insulating terminal container. The motor wires include portions covered with an insulating tube and distal ends at which a connection terminal is provided. The terminal container includes a cluster block and a terminal holder. The cluster block accommodates the connection terminal and has an opening. The terminal holder holds the connection terminal and has a lid that closes the opening. The cluster block includes a base portion. The lid has a cutout that receives the tube. The lid is in contact with the base portion such that a part of a hole defined by the cutout is closed by the base portion.Type: GrantFiled: September 23, 2020Date of Patent: December 26, 2023Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Hiroki Takayama, Shozo Hamana, Taku Adaniya
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Publication number: 20230407127Abstract: A coating agent has: a film-forming component containing an organosilicon compound having a radical polymerizable functional group and an alkoxysilyl group; and a film-curing component composed so that a base and a radical can be generated on irradiation with ultraviolet light. The film-curing component includes a nonionic photobase generator having no ionic bond in the molecular structure. The content of the nonionic photobase generator is 0.1 parts by mass or more and 50 parts by mass or less, based on 100 parts by mass of the organosilicon compound.Type: ApplicationFiled: November 12, 2021Publication date: December 21, 2023Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Tokyo University of Science FoundationInventors: Ayano SASAKI, Sayako SATO, Hidenori MUNEKATA, Motoshige ISOBE, Hisashi MURAMATSU, Koji ARIMITSU
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Publication number: 20230411812Abstract: A power storage device includes power storage cells that includes a positive electrode, a negative electrode, a separator, and an accommodation chamber accommodating a liquid electrolyte in a liquid-tight manner. The power storage device includes a cell stack in which the power storage cells are stacked in series. A side surface of the cell stack is covered with a seal portion made of a plastic. A terminal positive electrode current collector and a terminal negative electrode current collector located in the outermost layer of the cell stack are made of a high thermal conductivity material having a thermal conductivity greater than or equal to 100 W/(m·K). The power storage device includes a positive electrode cooling unit, which cools the terminal positive electrode current collector, and a negative electrode cooling unit, which cools the terminal negative electrode current collector. The liquid electrolyte contains an ester compound.Type: ApplicationFiled: November 19, 2021Publication date: December 21, 2023Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Yushi KONDO, Osamu OHMORI, Takeshi KATAYAMA, Yusuke YAMASHITA
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Patent number: D1008948Type: GrantFiled: October 29, 2021Date of Patent: December 26, 2023Assignees: YAZAKI CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Satoshi Morioka, Motoyoshi Okumura, Hiromi Ueda, Naoto Morisaku, Yutaro Okazaki, Shinichi Yanagihara
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Patent number: D1008963Type: GrantFiled: October 29, 2021Date of Patent: December 26, 2023Assignees: YAZAKI CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Satoshi Morioka, Motoyoshi Okumura, Hiromi Ueda, Naoto Morisaku, Yutaro Okazaki, Shinichi Yanagihara
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Patent number: D1008964Type: GrantFiled: October 29, 2021Date of Patent: December 26, 2023Assignees: YAZAKI CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Satoshi Morioka, Motoyoshi Okumura, Hiromi Ueda, Naoto Morisaku, Yutaro Okazaki, Shinichi Yanagihara