Patents Assigned to Aisin Aw Co., Ltd.
  • Patent number: 11204078
    Abstract: 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: Grant
    Filed: August 9, 2018
    Date of Patent: December 21, 2021
    Assignee: AISIN AW CO., LTD.
    Inventors: Yoichi Oi, Takao Sakamoto, Kazuhiro Itou, Masahiko Kobayashi
  • Publication number: 20210379982
    Abstract: 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: Application
    Filed: January 29, 2019
    Publication date: December 9, 2021
    Applicant: AISIN AW CO., LTD.
    Inventors: Kenji OMOTE, Keishi MORITA, Kenta TAMABAYASHI, Hiroshi ISHIYAMA
  • Patent number: 11190070
    Abstract: 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: Grant
    Filed: December 18, 2017
    Date of Patent: November 30, 2021
    Assignee: AISIN AW CO., LTD.
    Inventors: Naoto Saito, Masayuki Ikemoto, Tsuyoshi Miyaji
  • Patent number: 11186284
    Abstract: 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: Grant
    Filed: July 19, 2019
    Date of Patent: November 30, 2021
    Assignee: AISIN AW CO., LTD.
    Inventors: Ryo Watanabe, Yasuyuki Sato, Kenta Kimata, Takuro Iwase, Junichiro Ohtsubo
  • Publication number: 20210364047
    Abstract: 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: Application
    Filed: September 12, 2019
    Publication date: November 25, 2021
    Applicant: AISIN AW CO., LTD.
    Inventors: Masaki WAJIMA, Akihiro NAGAE, Yuichiro HIRAI
  • Publication number: 20210367472
    Abstract: 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: Application
    Filed: March 28, 2019
    Publication date: November 25, 2021
    Applicants: AISIN AW CO., LTD., HAYASHIKOGYOSYO CO., LTD.
    Inventors: Toru KUROYANAGI, Takahiko HOBO
  • Publication number: 20210362592
    Abstract: 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: Application
    Filed: September 19, 2018
    Publication date: November 25, 2021
    Applicant: AISIN AW CO., LTD.
    Inventors: Ryohei TAKAHASHI, Jun TAKAMATSU, Toshihiro OKADA
  • Publication number: 20210356034
    Abstract: 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: Application
    Filed: January 9, 2020
    Publication date: November 18, 2021
    Applicant: AISIN AW CO., LTD.
    Inventors: Takahiro TORII, Kazuki KOJIMA, Masahiro ITO, Yuya ISHIHARA
  • Publication number: 20210351653
    Abstract: 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: Application
    Filed: October 9, 2019
    Publication date: November 11, 2021
    Applicant: AISIN AW CO., LTD.
    Inventors: Kiyotaka KOGA, Takahiro KOBUCHI, Takashi KATO
  • Patent number: 11171549
    Abstract: 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: Grant
    Filed: March 27, 2018
    Date of Patent: November 9, 2021
    Assignee: AISIN AW CO., LTD.
    Inventor: Shingo Hashimoto
  • Publication number: 20210344243
    Abstract: 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: Application
    Filed: November 6, 2019
    Publication date: November 4, 2021
    Applicant: AISIN AW CO., LTD.
    Inventors: Kiyotaka KOGA, Takahiro KOBUCHI, Takashi KATO
  • Publication number: 20210344295
    Abstract: 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: Application
    Filed: November 8, 2019
    Publication date: November 4, 2021
    Applicant: AISIN AW CO., LTD.
    Inventors: Yutaka HOTTA, Seiji YASUI, Shinya OSUKA
  • Patent number: 11162588
    Abstract: A seal structure between an oil outlet formed in a first case and an oil inlet formed in a second case and having an end face facing an end face of the oil outlet with a clearance between the end faces, the seal structure including an annular first seal disposed in an increased-diameter hole, which is formed on an outlet side or an inlet side of an oil passage in one of the oil outlet and the oil inlet and has a larger diameter than the oil passage, such that the first seal contacts a step surface located at a boundary between the oil passage and the increased-diameter hole; and an annular second seal harder than the first seal and disposed in the increased-diameter hole such that the second seal contacts the first seal and the end face of the other of the oil outlet and the oil inlet.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: November 2, 2021
    Assignees: AISIN AW CO., LTD., NOK CORPORATION
    Inventors: Daisuke Akafuji, Kazuya Kawamura, Toru Araki, Shinji Onishi, Yuji Otsuka
  • Patent number: 11161516
    Abstract: According to one embodiment, by way of example, a vehicle control device includes: an acquisition unit configured to acquire map data indicating an absolute azimuth of a linear road surface sign disposed on a road surface on which a vehicle travels, and image data obtained by imaging surroundings of the vehicle with a vehicle-mounted camera included in the vehicle; and a correction unit configured to detect the road surface sign from the acquired image data, calculate a relative azimuth of the road surface sign with respect to the vehicle on the image data, calculate a shift of an azimuth in which the vehicle moves based on the calculated relative azimuth and the absolute azimuth of the detected road surface sign indicated by the map data, and correct the azimuth in which the vehicle moves based on the calculated shift.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: November 2, 2021
    Assignees: AISIN SEIKI KABUSHIKI KAISHA, AISIN AW CO., LTD.
    Inventors: Yu Tanaka, Toyoji Hiyokawa
  • Patent number: 11165317
    Abstract: A manufacturing method of a core for a rotary electric machine, the method includes inserting a permanent magnet that is not yet magnetized in a magnet insertion hole that is formed in a rotor core; injecting a magnet fixing material in the magnet insertion hole; curing the magnet fixing material by heating the rotor core and the permanent magnet; and magnetizing the permanent magnet before a temperature of the rotor core and the permanent magnet decreases to a normal temperature, after the curing of the magnet fixing material.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: November 2, 2021
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naomi Inoue, Hiroaki Wakimoto, Tsuyoshi Miyaji, Motoki Hiraoka, Daisuke Ichigozaki
  • Patent number: 11165316
    Abstract: A method for manufacturing a rotor including a rotor core and a permanent magnet, the rotor core having a magnet hole, and the permanent magnet being inserted in the magnet hole and fixed to the rotor core with an adhesive, including the steps of: applying the adhesive, inserting the permanent magnet into the magnet hole of the rotor core, volatilizing the diluting solvent, expanding the expanding agent, and fixing the permanent magnet to the rotor core.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: November 2, 2021
    Assignee: AISIN AW CO., LTD.
    Inventors: Tetsuya Matsubara, Motoki Kori, Akira Takasu, Takamasa Kondo
  • Publication number: 20210333112
    Abstract: To provide a technique for allowing a search for a route taking into account turnarounds in the entire way from a point of departure to a destination. A route search system includes a node obtaining part that obtains nodes present between a point of departure and a destination of a vehicle; a passage cost obtaining part that obtains a passage cost of a road section between the nodes and the passage costs of intersections represented by the nodes; and a route searching part that searches for a route with the smallest sum of the passage costs between the point of departure and the destination, and the route searching part sets the passage cost for a case of making a turnaround, for all of the intersections included in a candidate for a route from the point of departure to the destination, based on the road section traveled after the turnaround.
    Type: Application
    Filed: September 18, 2019
    Publication date: October 28, 2021
    Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Katsuya MATSUNAGA, Koji UCHIYAMA, Xin JIN
  • Patent number: 11156667
    Abstract: Provided is a diagnostic device for a coil including a voltage application unit applying an impulse voltage to the coil; a response voltage detection unit detecting a response voltage from the coil with respect to the impulse voltage; an index calculation unit calculating a determination index indicating an electrical feature of the coil based on the response voltage; and a determination unit determining whether there is an abnormality in a target coil to be diagnosed by comparing the determination index of a reference coil that is the coil that is normal and the determination index of the target coil. At least one of a zero cross point at which the response voltage intersects with a reference voltage and a peak voltage on a positive side and a negative side of the response voltage is used as the determination index, in addition to a circuit constant of the coil.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: October 26, 2021
    Assignee: AISIN AW CO., LTD.
    Inventor: Hideaki Kimura
  • Patent number: 11149817
    Abstract: A damper device includes a plurality of rotational elements, a plurality of elastic bodies, a rotary inertia mass damper and a housing that houses the plurality of rotational elements, the plurality of elastic bodies and the rotary inertia mass damper, the housing including a front cover. The rotary inertia mass damper is configured to include a planetary gear that includes a sun gear, a plurality of pinion gears, and a carrier that rotatably supports the plurality of pinion gears. The carrier is centered by either the sun gear or a member that rotates integrally with the sun gear by being radially supported by either the sun gear or the member that rotates integrally with the sun gear. In addition, the carrier is spline-engaged to the front cover when a lockup clutch is engaged.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: October 19, 2021
    Assignees: AISIN AW INDUSTRIES CO., LTD., AISIN AW CO., LTD.
    Inventors: Takuya Yoshikawa, Aki Ogawa, Yoshihiro Yoshida, Akiyoshi Kato, Ryosuke Otsuka, Kazuyoshi Ito, Masaki Wajima
  • Patent number: 11149820
    Abstract: In an element of a power transfer belt to be wound around a primary pulley and a secondary pulley of a continuously variable transmission to transfer torque, the distance from a boundary line between a surface positioned on the outer peripheral side of the power transfer belt with respect to a rocking edge portion and the rocking edge portion to a saddle surface is determined from the slip amount due to micro slip which is relative slipping between the element and the primary pulley caused when the primary pulley pushes out the power transfer belt toward the secondary pulley, and the angular speed of the element and the angular speed of a ring in a range in which the power transfer belt is wound around the secondary pulley.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: October 19, 2021
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryo Nakamura, Akira Ochi, Takayuki Miyake, Junichi Tokunaga, Keisuke Ninomiya, Yu Inase, Fumiya Kaji, Yuji Hattori, Yuji Nagasawa