Patents Assigned to Aisin Aw Co., Ltd.
  • Publication number: 20220196131
    Abstract: A differential device includes a differential case (10) that has a flange portion (11) and a differential ring gear (40) that has a tooth portion, a fixed and supported portion (45), and a coupling portion. The differential case (10) has a first abutting surface (10a) and a restricting portion (10b). The differential ring gear (40) has a second abutting surface (40a) and an abutting portion (40b). A welding portion that is formed by welding the flange portion (11) of the differential case (10) and the fixed and supported portion (45) of the differential ring gear (40) is disposed at a position that is different from an abutting part between the first abutting surface (10a) and the second abutting surface (40a) and an abutting part between the restricting portion (10b) and the abutting portion (40b).
    Type: Application
    Filed: August 27, 2018
    Publication date: June 23, 2022
    Applicant: AISIN AW CO., LTD
    Inventors: Hiroyuki ONO, Yusuke SUZUKI
  • Patent number: 11329473
    Abstract: According to one aspect of embodiments, a driver circuit having an overcurrent protection function includes a control signal generating circuit that outputs a Pulse Width Modulation (PWM) control signal for controlling turning ON and OFF of the output transistor that supplies output current to a load; and a control circuit that generates a signal indicating an overcurrent state when a count value of an overcurrent detecting signal exceeds a predetermined number, which indicates that a value of an output current of the output transistor within the predetermined time interval exceeds a predetermined threshold value.
    Type: Grant
    Filed: July 19, 2020
    Date of Patent: May 10, 2022
    Assignees: TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION, AISIN AW CO., LTD.
    Inventors: Hiroyuki Sugiyama, Yuji Yamanaka, Tatsufumi Kurokawa
  • Patent number: 11319971
    Abstract: 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: Grant
    Filed: September 28, 2020
    Date of Patent: May 3, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.
    Inventors: Chunyang Sun, Wataru Matsumoto, Tomonori Uchida, Fumiaki Shigematsu, Satoshi Miyanaga
  • Patent number: 11258391
    Abstract: 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: Grant
    Filed: January 17, 2019
    Date of Patent: February 22, 2022
    Assignee: AISIN AW CO., LTD.
    Inventors: Subrata Saha, Isao Fujiwara
  • Patent number: 11247658
    Abstract: 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: Grant
    Filed: December 18, 2019
    Date of Patent: February 15, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, Aisin AW CO., Ltd.
    Inventors: Kenta Kumazaki, Tooru Matsubara, Daisuke Suyama, Mitsuru Maeda, Tomoyasu Kimura
  • Patent number: 11238735
    Abstract: 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: Grant
    Filed: February 15, 2018
    Date of Patent: February 1, 2022
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daisuke Tanizaki, Xin Jin
  • 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: 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
  • 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
  • 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: 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: 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: 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
  • 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
  • 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
  • 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