Patents Assigned to Aisin AW
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Patent number: 11319971Abstract: A vehicle driving apparatus including: a fluid pump; a rotary member; a bearing supporting the rotary member; a pump cover covering the fluid pump; a relief valve; and a casing storing the fluid pump, the rotary member, the bearing, the pump cover and the relief valve. The casing includes a casing body and a casing cover. The casing cover defines a fluid passage that is in communication with an outlet port of the fluid pump, and includes cylindrical-shaped first and second boss portions. The first boss portion includes a supporting portion supporting the rotary member through the bearing which is fitted in a space radially inside the first boss portion. The second boss portion defines a valve room that is in communication with the fluid passage, with the relief valve being stored in the valve room.Type: GrantFiled: September 28, 2020Date of Patent: May 3, 2022Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.Inventors: Chunyang Sun, Wataru Matsumoto, Tomonori Uchida, Fumiaki Shigematsu, Satoshi Miyanaga
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Publication number: 20220055150Abstract: A laser welding device includes a chamber which has an internal space in which a workpiece is disposed, a laser beam irradiation unit which irradiates the workpiece with a laser beam to weld the workpiece, a vacuum pump which suctions air in the chamber to decrease a pressure in the chamber, a laser transmission window through which the laser beam emitted from the laser beam irradiation unit is transmitted, and a shutter which is disposed on the chamber side with respect to the laser transmission window and closed when the pressure in the chamber is returned to the atmospheric pressure after laser welding.Type: ApplicationFiled: December 4, 2019Publication date: February 24, 2022Applicant: AISIN AW INDUSTRIES CO., LTD.Inventors: Kouji TAKEMOTO, Kazuyoshi MIYAMOTO, Tomoaki YOSHIDA, Daichi SUMIMORI, Hiroshi HASEGAWA
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Publication number: 20220055151Abstract: The laser welding device includes a laser transmission window and a gas injection nozzle. The gas injection nozzle includes an optical path hole and an injection unit that injects an inert gas for shielding metal vapor into the optical path hole toward an irradiation direction (E) side and an optical axis (A) side of a laser beam (L).Type: ApplicationFiled: December 4, 2019Publication date: February 24, 2022Applicant: AISIN AW INDUSTRIES CO., LTD.Inventors: Kouji TAKEMOTO, Kazuyoshi MIYAMOTO, Tomoaki YOSHIDA, Daichi SUMIMORI, Hiroshi HASEGAWA
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Patent number: 11258391Abstract: Two inverters provided at both ends of each open-end winding, respectively, are appropriately controlled. A rotating electrical machine control device (1) that has at least two control schemes among pulse width modulation control, active short-circuit control, and rectangular-wave control, as control schemes for a first inverter (11) and a second inverter (12), and that can control the first inverter (11) and the second inverter (12) by control schemes which are independent of each other considers one of the plurality of control schemes as a first control scheme and one of the plurality of control schemes different than the first control scheme as a second control scheme, and has a control mode in which the first inverter (11) is controlled by the first control scheme and the second inverter (12) is controlled by the second control scheme.Type: GrantFiled: January 17, 2019Date of Patent: February 22, 2022Assignee: AISIN AW CO., LTD.Inventors: Subrata Saha, Isao Fujiwara
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Patent number: 11247658Abstract: A control apparatus for a vehicle provided, with a step-variable transmission, includes: a feedback control portion; an input torque resetting control portion; a target input torque setting portion operated upon an increase of the accelerator pedal operation amount in the process of the shift-down action in a power-off state of the vehicle, to restrict an amount of increase of the input torque target value with respect to an amount of increase of an operator-required input torque value, so as to keep the target value not larger than an upper limit value until termination of the input torque resetting control; and an actual input torque increasing portion operated upon the increase of the accelerator pedal operation amount prior to initiation of the inertia phase, to implement an input torque increasing control to control the input torque so as to be larger than the target value, prior to the inertia phase initiation.Type: GrantFiled: December 18, 2019Date of Patent: February 15, 2022Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, Aisin AW CO., Ltd.Inventors: Kenta Kumazaki, Tooru Matsubara, Daisuke Suyama, Mitsuru Maeda, Tomoyasu Kimura
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Publication number: 20220042573Abstract: A damper device including an input element to which a torque from an engine is transmitted; an output element; an elastic body to transmit torque between the input element and the output element; and rotary inertia mass damper having a mass body that rotates in accordance with a relative rotation of the input element and the output element. The output element is coupled to a rotor of an electric motor, which is coupled to an input shaft of a transmission. The rotary inertia mass damper includes a planetary gear mechanism having a carrier that supports pinion gears, the carrier is a part of the input element, one of the sun gear and the ring gear is a part of the output element, and the other of the sun gear and the ring gear functions as the mass body.Type: ApplicationFiled: December 26, 2019Publication date: February 10, 2022Applicants: AISIN CORPORATION, AISIN AW INDUSTRIES CO., LTD.Inventors: Takuya YOSHIKAWA, Tomonori KINOSHITA, Akiyoshi KATO, Ryosuke OTSUKA, Yoichi OI, Yu MIZUKAMI, Aki OGAWA
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Patent number: 11238735Abstract: To provide a technique for recognizing a tendency of a parking lot that was actually used by users visiting a target facility, a parking lot information management system includes: a parking information collecting unit that collects parking information indicating a parking point at which a vehicle is parked from the vehicle; and a history information accumulating unit that accumulates history information for every target facility that is set as a destination, the history information configured so that a tendency of a parking lot that the vehicle was actually parked in when the target facility was set as the destination is derived, based on the parking information.Type: GrantFiled: February 15, 2018Date of Patent: February 1, 2022Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Daisuke Tanizaki, Xin Jin
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Publication number: 20220023970Abstract: This laser welding device includes a tubular portion. The tubular portion includes a first tubular portion and a second tubular portion. The second tubular portion has a constant cross-sectional shape orthogonal to an irradiation direction along the irradiation direction E. The tubular portion has a predetermined length that is longer than a length of a chamber in the irradiation direction.Type: ApplicationFiled: December 4, 2019Publication date: January 27, 2022Applicant: AISIN AW INDUSTRIES CO., LTD.Inventors: Kouji TAKEMOTO, Kazuyoshi MIYAMOTO, Tomoaki YOSHIDA, Daichi SUMIMORI, Hiroshi HASEGAWA
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Patent number: 11204078Abstract: A vibration damping device includes a support member that rotates, together with a rotary element to which torque from an engine is transmitted, about a center of rotation of the rotary element, a restoring force generation member that is coupled to the support member to transmit torque to and receive torque from the support member and that is swingable along with rotation of the support member, and an inertial mass body that is coupled to the support member via the restoring force generation member and that swings about the center of rotation in conjunction with the restoring force generation member along with rotation of the support member. The support member is disposed between at least a part of the restoring force generation member and at least a part of the inertial mass body in an axial direction.Type: GrantFiled: August 9, 2018Date of Patent: December 21, 2021Assignee: AISIN AW CO., LTD.Inventors: Yoichi Oi, Takao Sakamoto, Kazuhiro Itou, Masahiko Kobayashi
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Publication number: 20210379982Abstract: A vehicle drive device includes: rotary electric machine; rotor support member; friction engagement device disposed at position on inner side in radial direction with respect to a rotor and at which friction engagement device overlaps rotor as viewed in radial direction along radial direction; and a first and second bearing that rotatably support rotor support member. Friction engagement device has a first and second engagement device disposed side by side in axial direction. First piston portion of first engagement device and a second piston portion of second engagement device are disposed separately on both sides in axial direction across a first and a second friction member. First bearing is disposed at a position at which first bearing overlaps first piston portion as viewed in the radial direction. Second bearing is disposed at a position at which second bearing overlaps second piston portion as viewed in the radial direction.Type: ApplicationFiled: January 29, 2019Publication date: December 9, 2021Applicant: AISIN AW CO., LTD.Inventors: Kenji OMOTE, Keishi MORITA, Kenta TAMABAYASHI, Hiroshi ISHIYAMA
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Patent number: 11190070Abstract: A rotor for a rotating electrical machine, the rotor including: a rotor core having a plurality of magnetic poles; and a plurality of permanent magnets arranged in the rotor core, wherein: in each of the plurality of magnetic poles, the rotor core has a plurality of holes including a first hole and a second hole in each of which a respective permanent magnet of the plurality of permanent magnets having a planar magnetic pole surface is arranged.Type: GrantFiled: December 18, 2017Date of Patent: November 30, 2021Assignee: AISIN AW CO., LTD.Inventors: Naoto Saito, Masayuki Ikemoto, Tsuyoshi Miyaji
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Patent number: 11186284Abstract: A control device performs upshifting in a state in which an operating point of a rotating electrical machine for outputting requirement-based torque at wheel-based rotational speed falls within an operable range of the rotating electrical machine both before and after shifting a shift speed by the upshifting, and in which before shifting the shift speed, output torque from the rotating electrical machine is less than or equal to determination torque (T1), the wheel-based rotational speed being rotational speed of the rotating electrical machine based on rotational speed (V) of a wheel, the requirement-based torque being output torque from the rotating electrical machine based on required wheel transmission torque, and the determination torque (T1) being torque obtained by subtracting an amount of increased torque (?Tmg) resulting from torque increase control from maximum torque (Tmax) that can be outputted from the rotating electrical machine at the wheel-based rotational speed.Type: GrantFiled: July 19, 2019Date of Patent: November 30, 2021Assignee: AISIN AW CO., LTD.Inventors: Ryo Watanabe, Yasuyuki Sato, Kenta Kimata, Takuro Iwase, Junichiro Ohtsubo
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Publication number: 20210367472Abstract: A stator includes: a stator core; a plurality of coils each including coil end portions protruding from end faces of the stator core facing in a central axis direction and a lead wire portion; and a connecting wire unit that is disposed between outer ends of the coil end portions facing in the central axis direction and the end faces of the stator core in the central axis direction and is connected to the lead wire portions of the coils.Type: ApplicationFiled: March 28, 2019Publication date: November 25, 2021Applicants: AISIN AW CO., LTD., HAYASHIKOGYOSYO CO., LTD.Inventors: Toru KUROYANAGI, Takahiko HOBO
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Publication number: 20210362592Abstract: A drive device for vehicles includes a transmission device including a transmission mechanism that changes a speed of inputted rotation of a drive source of a vehicle and outputs the rotation and that is provided on an axis of rotation orthogonal to a front-rear direction of the vehicle; and a casing that holds the transmission mechanism; and a control device that performs electronic control of the transmission device, at least a part of the control device being installed on an outside of the casing, and the control device is installed at either one of a front side portion and a rear side portion of the casing in the front-rear direction of the vehicle.Type: ApplicationFiled: September 19, 2018Publication date: November 25, 2021Applicant: AISIN AW CO., LTD.Inventors: Ryohei TAKAHASHI, Jun TAKAMATSU, Toshihiro OKADA
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Publication number: 20210364047Abstract: A damper device includes: an input element coupled to an engine via a clutch; an intermediate element; an output element coupled to an input shaft of a transmission; a first elastic body that is disposed between the input element and the intermediate element; and a second elastic body that is disposed between the intermediate element and the output element and that acts in series with the first elastic body. When a total moment of inertia of the output element and a rotation element that rotates integrally with the output element on the engine side with respect to the input shaft is J2, and a total moment of inertia of all rotation members included between the input shaft and a differential gear coupled to an output shaft of the transmission is JTM, 0.12?J2/(J2+JTM)?0.5 is satisfied.Type: ApplicationFiled: September 12, 2019Publication date: November 25, 2021Applicant: AISIN AW CO., LTD.Inventors: Masaki WAJIMA, Akihiro NAGAE, Yuichiro HIRAI
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Publication number: 20210356034Abstract: An intermediate wall is provided with a return oil hole through which oil discharged from a friction engagement device returns toward an oil reservoir. A chain drive is disposed adjacent to the intermediate wall. The chain drive transmits a driving force from an input member and/or a rotary electric machine to an oil pump. There is provided an oil guide through which oil flowing through the return oil hole is guided to a region other than a chain placement region inside a case. The chain placement region is a region where a chain of the chain drive is placed.Type: ApplicationFiled: January 9, 2020Publication date: November 18, 2021Applicant: AISIN AW CO., LTD.Inventors: Takahiro TORII, Kazuki KOJIMA, Masahiro ITO, Yuya ISHIHARA
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Publication number: 20210351653Abstract: In this armature, between the first segment conductor and the second segment conductor that are joined to each other in the joint portion, a first clearance portion is provided between the tip end portion of the first leg portion and the second leg portion body portion in the axial direction, and a second clearance portion is provided between the tip end portion of the second leg portion and the first leg portion body portion in the axial direction.Type: ApplicationFiled: October 9, 2019Publication date: November 11, 2021Applicant: AISIN AW CO., LTD.Inventors: Kiyotaka KOGA, Takahiro KOBUCHI, Takashi KATO
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Patent number: 11171549Abstract: A method for forming a coil, including the steps of: forming a spiral coil-segment forming member that includes a plurality of coil-segment forming portions each having a shape corresponding to a coil segment including a straight slot body that is accommodated in a slot of a stator core and a non-straight coil end that projects from the stator core in a rotational axis direction of the stator core; and dividing the spiral coil-segment forming member to form a plurality of the coil segments from the plurality of coil-segment forming portions.Type: GrantFiled: March 27, 2018Date of Patent: November 9, 2021Assignee: AISIN AW CO., LTD.Inventor: Shingo Hashimoto
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Publication number: 20210344295Abstract: An inverter unit includes a switching element unit, a control board, a cooler, and an inverter case. The inverter case is integrally fixed to a rotating electrical machine case. The cooler is disposed so as to be in contact with the switching element unit on an opposite side to a rotating electrical machine side. The control board is disposed on the rotating electrical machine side of the switching element unit.Type: ApplicationFiled: November 8, 2019Publication date: November 4, 2021Applicant: AISIN AW CO., LTD.Inventors: Yutaka HOTTA, Seiji YASUI, Shinya OSUKA
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Publication number: 20210344243Abstract: In this stator armature, a first leg portion has a first surface side part that has a thickness in a radial direction smaller than a thickness of a first leg portion body portion in the radial direction, a second leg portion has a second surface side part that has a thickness in the radial direction smaller than a thickness of a second leg portion body portion in the radial direction, and in the radial direction, a thickness of a joint portion is equal to or more than a thickness of a part other than the joint portion.Type: ApplicationFiled: November 6, 2019Publication date: November 4, 2021Applicant: AISIN AW CO., LTD.Inventors: Kiyotaka KOGA, Takahiro KOBUCHI, Takashi KATO