Patents Assigned to Mazda Motor Corporation
  • Patent number: 11859582
    Abstract: An intake sound amplifier amplifies intake sound that is transmitted from an engine mounted in an engine compartment of a vehicle to a cabin. The intake sound amplifier includes a first passage branched from an intake passage, through which intake air is introduced into an engine; a device body that includes a vibrating body vibrated by pulsation of the intake air and is connected to a downstream end of the first passage; and a second passage that is connected to a downstream end of the device body and extends to the cabin side. The device body is located outward in a vehicle width direction of a side frame that extends in a vehicle front-rear direction and separates inside of the engine compartment from outside in the vehicle width direction.
    Type: Grant
    Filed: November 30, 2022
    Date of Patent: January 2, 2024
    Assignee: Mazda Motor Corporation
    Inventors: Yousuke Iwasaki, Satoshi Kusumoto, Shin Kodama
  • Patent number: 11857472
    Abstract: A wheelchair includes a seating portion on which a wheelchair user sits, a body frame that supports the seating portion, a pair of rear wheels and a pair of front wheels rotatably supported by the body frame, and a seat back portion capable of changing the inclination angle with respect to the seating portion. The wheelchair includes push-along handle portions as engaging portions capable of fixing the seat back portion to a side sill as a vehicle body member that forms a door opening of the vehicle when the seat back portion is tilted backward of the wheelchair.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: January 2, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takashi Iwase, Isao Toda
  • Patent number: 11860081
    Abstract: A corrosion resistance test method for a coated metal material that includes a metal base and a surface treatment film, includes the steps of: disposing one or more water-containing material holders each holding a water-containing material to be in contact with the surface treatment film and one or more electrodes to be in contact with the water-containing material, and electrically connecting, with an external circuit, between the one electrode and the metal base, or between the electrodes; and supplying a current between the one electrode and the metal base, or between at least one of the electrodes and at least one of the other electrodes, as an anode and a cathode, to bring corrosion of the coated metal material to progress. The water-containing material comprises water, an electrolyte material, and kaolinite, and comprises the kaolinite at 36.0 mass % or more to 45.0 mass % or less.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: January 2, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Teruaki Asada, Katsunobu Sasaki, Tatsuya Ezaki, Tsutomu Shigenaga, Akihide Takami
  • Patent number: 11859675
    Abstract: A friction engagement device of an automatic transmission is provided with a cylindrical drum part supporting an annular friction plate. The drum part includes a cylindrical body with a spline part having serrations extending in the axial direction and depressed radially outward to fit with the friction plate, in an inner circumferential side surface, a vertical wall part provided at an end side of the cylindrical body and extending radially inward, and a corner part provided between the cylindrical body and the vertical wall part. A drum recess is formed inside the corner part, connected to the serration and depressed toward an axial end side. A cut part is provided outside the corner part, connected to the drum recess, and cut in the circumferential direction of the drum part. The drum recess is opened to an outside by the cut part to form an oil gallery.
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: January 2, 2024
    Assignee: Mazda Motor Corporation
    Inventor: Takayuki Ikemoto
  • Patent number: 11858333
    Abstract: A vehicle body structure includes a front floor panel provided on a vehicle front side and a rear floor panel provided at the rear of the front floor panel. The front floor panel is positioned higher than the rear floor panel. A first battery arrangement portion is provided long in a vehicle front-rear direction at a center portion of the front floor panel in the vehicle width direction. A second battery arrangement portion is provided outside the first battery arrangement portion in a vehicle width direction below the front floor panel. An upper portion of the first battery arrangement portion is positioned higher than an upper portion of the second battery arrangement portion.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: January 2, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Isao Toda, Takayuki Kimura, Takehiro Kamei, Hiroshi Tanaka, Haruo Ohe, Masaya Hiramatsu, Masanobu Fukushima, Takao Fukuda, Hironobu Hashiguchi, Hiroyuki Baba
  • Patent number: 11858523
    Abstract: A vehicle travel control device includes computation circuitry, and a device controller that controls actuation of a traveling device mounted on a vehicle, based on a result from the computation circuitry. The computation circuitry identifies a vehicle outdoor environment based on an output from image circuitry that acquires image information of vehicle outdoor environment, sets a route on which the vehicle is to travel, in accordance with the vehicle outdoor environment previously identified, determines a target motion of the vehicle to follow the route previously set, calculates a target physical quantity to be executed by the traveling device to achieve the target motion previously determined, and calculates a controlled variable of the traveling device such that the target physical quantity calculated is achieved, and the device controller outputs a control signal to the traveling device so as to control the traveling device to control a motion of the vehicle.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: January 2, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Shinsuke Sakashita, Daisuke Horigome, Masato Ishibashi, Eiichi Hojin
  • Patent number: 11858555
    Abstract: A front body structure of a vehicle includes a dash member that extends in a vehicle width direction and separates a vehicle interior from an engine room, a pair of left and right front side frames that extend from left and right end portions of the dash member, and a pair of left and right suspension towers that are fixed to the pair of front side frames and support the upper portions of dampers of a suspension device. A first coupling member couples the dash member to the suspension towers. The first coupling member has a reinforced layer portion made of fiber reinforced plastic in which fibers are impregnated with a synthetic resin material. The fibers of the reinforced layer portion are oriented so that more fibers extend in a longitudinal direction than extend in directions other than the longitudinal direction.
    Type: Grant
    Filed: February 2, 2022
    Date of Patent: January 2, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Kenji Nishida, Chikara Kawamura
  • Patent number: 11859574
    Abstract: A method of controlling an engine is provided, which includes the steps of injecting main fuel by a fuel injector during an intake stroke or a compression stroke, providing a mixture gas containing fuel and air inside a cylinder, applying by an ignition device a high voltage between electrodes of a spark plug at a timing when the mixture gas is not ignited, detecting a parameter related to a current value of an electric-discharge channel generated between the electrodes, determining by a controller whether the detected parameter is within a range between a first threshold and a second threshold to determine a flowing state of a vortex inside the cylinder, operating the spark plug to carry out a supplemental ignition when the parameter is determined to be outside the range, and igniting the mixture gas by operation of the spark plug after the supplemental ignition.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: January 2, 2024
    Assignee: Mazda Motor Corporation
    Inventors: Noriyuki Ota, Yoshihisa Nou
  • Patent number: 11858045
    Abstract: Provided is a Fe-based sintered body which has both of a high hardness and a high thermal conductivity and which can be more stably produced. The Fe-based sintered body includes: a matrix (1) containing Fe as a main component; and a hard phase (4) dispersed in the matrix (1). The matrix (1) is formed in a network shape and contains ?Fe. The hard phase (4) contains TiC.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: January 2, 2024
    Assignees: Hiroshima University, Y-tec Corporation, keylex corporation, Mazda Motor Corporation
    Inventors: Kazuhiro Matsugi, Yujiao Ke, Zhefeng Xu, Kenjiro Sugio, Yongbum Choi, Gen Sasaki, Hajime Suetsugu, Hiroki Kondo, Hideki Manabe, Kyotaro Yamane, Kenichi Hatakeyama, Keizo Kawasaki, Tsuyoshi Itaoka, Shinsaku Seno, Yasushi Tamura, Ichirou Ino, Yoshihide Hirao
  • Patent number: 11861956
    Abstract: In a device (1) for recognizing an external environment of a moving body, an image processing unit (10) generates image data indicating the external environment of the moving body. Using this image data, object data indicating an object around the moving body is generated. At an occurrence of a predetermined event, a control unit (30) records the generated object data in a recording device (35), whereas the image processing unit (10) records, in another recording device (15), the image data corresponding to the object data recorded in the recording device (35). The time information generation unit (40) adds the same time information to the recorded object data and image data.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: January 2, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Daisuke Horigome, Daisuke Hamano
  • Publication number: 20230415454
    Abstract: A multilayer coating film includes a lustrous layer containing a luster material and a blackish coloring agent, and a colored layer containing a reddish coloring agent, and having translucency. A slope of a tangent of a spectrum of a spectral transmittance, defined as an absolute value, of the colored layer at the wavelength of 620 nm is 0.02 nm?1 or more and 0.06 nm?1 or less, the spectral transmittance being obtainable by dividing a spectral reflectance measured for the colored layer stacked on the lustrous layer at the light receiving angle of 15° in the case of the light incident angle of 45°, by a spectral reflectance measured for the lustrous layer from which the colored layer is removed and a surface of which is therefore exposed, at the light receiving angle of 15° in the case of the light incident angle of 45°.
    Type: Application
    Filed: October 22, 2021
    Publication date: December 28, 2023
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takakazu YAMANE, Keiichi OKAMOTO, Kouji TERAMOTO, Ryuji NONAKA, Kazuteru TAMAI, Eiichi KAWASE, Tomohiro FUJIMOTO, Takayoshi NAKAMOTO
  • Patent number: 11850780
    Abstract: A resin member includes: a resin substrate; and a micro-embossed pattern and having a plurality of recesses and a plurality of protrusions. The plurality of protrusions includes: a plurality of first protrusions; and a plurality of second protrusions having a height of from ¼ to ¾ of the height of the first protrusions. A distance between peaks of two adjacent ones of the plurality of protrusions ranges from 100 ?m to 500 ?m. The number of the minute regions having an angle of inclination of from ?10° to 10° with respect to the reference plane ranges from 78% to 95% of the number of all of the minute regions included in the micro-embossed pattern corresponding to the predetermined distance, and the number of the minute regions having an angle of inclination of from ?1° to 1° ranges from 25% to 40% of the number of all of the minute regions.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: December 26, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Sakura Nakano, Masaaki Akamine, Kaname Sawai, Akihiro Hosono, Shuhei Narita, Yu Tanaka
  • Patent number: 11852090
    Abstract: A vehicle control system includes an accelerator sensor which detects an accelerator opening, and a processor which sets a target acceleration of a vehicle based on the detected accelerator opening, sets a target torque of a drive source based on the set target acceleration, and controls the drive source to generate the set target torque. In a case where the target acceleration at a time when the accelerator opening is increased is set as a depression-increasing target acceleration and the target acceleration at a time when the accelerator opening is decreased is set as a pedal-returning target acceleration, under the same condition of the accelerator opening, the processor sets the target acceleration such that the depression-increasing target acceleration and the pedal-returning target acceleration are different from each other in a predetermined range of an upper limit acceleration or less and a lower limit acceleration or greater.
    Type: Grant
    Filed: February 11, 2022
    Date of Patent: December 26, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Takefumi Takada, Yuki Ishiyama
  • Patent number: 11850953
    Abstract: In a drive unit, a motor and an inverter having power modules are disposed adjacent in an axial direction of the motor. In the motor, first and second coil groups, each including one U-phase coil, one V-phase coil, and one W-phase coil, are provided. The power modules constitute first and second power module groups that are connected in parallel. The first and second power module groups each include one U-phase power module, one V-phase power module, and one W-phase power module. A distance between the U-phase power module of the first power module group and the U-phase coil of the first coil group, a distance between the V-phase power module of the first power module group and the V-phase coil of the first coil group, and a distance between the W-phase power module of the first power module group and the W-phase coil of the first coil group are equal.
    Type: Grant
    Filed: October 20, 2022
    Date of Patent: December 26, 2023
    Assignees: MAZDA MOTOR CORPORATION, ROHM CO., LTD
    Inventors: Takayuki Sato, Masashi Hayashiguchi
  • Patent number: 11850933
    Abstract: A vehicle body structure includes a front floor panel and a rear floor panel provided at the rear of the front floor panel. The front floor panel is positioned higher than the rear floor panel. A front battery that supplies electric power to the traction motor is arranged below the front floor panel.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: December 26, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Isao Toda, Takayuki Kimura, Takehiro Kamei, Hiroshi Tanaka, Haruo Ohe, Masaya Hiramatsu, Masanobu Fukushima, Takao Fukuda, Hironobu Hashiguchi, Hiroyuki Baba
  • Patent number: 11845496
    Abstract: A vibration damping structure includes a panel which is a structure and a damping member joined to the panel. The damping member has a plurality of joined portions joined to a mating surface of the panel through respective joined surfaces in the X direction, and a plurality of spacing portions recessed toward the side opposite to the panel in the Z direction between adjacent joined portions. The damping member is formed such that the damping member is higher in damping than the panel and a resonance frequency of the damping member is formed such that it is substantially the same as a primary resonance frequency of the panel.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: December 19, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Kaito Nakamura, Miho Kurata, Sakayu Terada, Shuhei Narita, Daisuke Yamada, Toshitaka Miyoshi
  • Patent number: 11845417
    Abstract: A control apparatus for an electric vehicle includes a first motor (traveling motor) for traveling, a battery (high-voltage battery), a second motor (generator motor) for electricity generation, an engine (rotary engine), a first controller (engine ECU), a second controller (motor ECU), and a sensor (voltage-current sensor). The second controller is configured to start the engine by causing the second motor to perform power running, cause the second motor to perform electricity generation driving such that the battery is charged, and adjust a stop position of the engine by causing the second motor to perform power running subsequently to a stop of the engine by the first controller in a case where a state of charge of the battery becomes high and the second motor finishes the electricity generation driving.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: December 19, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventor: Hiroyuki Saito
  • Publication number: 20230399054
    Abstract: A side sill that is disposed in a lower part and on an outer side in a vehicle width direction of a vehicle and has a side sill inner and a side sill outer which collaborate with each other to form a closed cross section extending in a front-rear direction of the vehicle; a wheel that is located ahead of the side sill outer; an outer-side reinforcement member that has a shape extending along a front face part and a side face part in a front end part of the side sill outer and is joined to the front end part from inside the closed cross section; and an inner-side reinforcement member that diagonally couples a front face part and a side face part in a front end part of the side sill inner to each other.
    Type: Application
    Filed: March 23, 2023
    Publication date: December 14, 2023
    Applicant: Mazda Motor Corporation
    Inventors: Ippei KURODA, Masaya NISHIMOTO, Shota NAKAYAMA
  • Patent number: 11840976
    Abstract: A control device for an engine is provided, which includes a combustion chamber formed by a cylinder and a piston, an intake air amount adjuster that adjusts an intake air amount supplied to the combustion chamber, a controller switchable of a combustion mode between a fuel-lean first combustion mode and a stoichiometric second combustion mode based on an engine operating state, and an intake air cooler that cools the intake air supplied to the combustion chamber. The controller controls the intake air cooler to start intake air cooling in response to a request for switching the combustion modes, and after the intake air cooling is started, controls the intake air amount adjuster to start the switching of the combustion modes, and then controls the intake air cooler and the intake air amount adjuster so that the switching of the combustion modes ends after the intake air cooling is finished.
    Type: Grant
    Filed: August 19, 2022
    Date of Patent: December 12, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Tohru Hokazono, Kota Maekawa, Masaharu Marumoto, Kazuaki Narahara, Chinami Morishima
  • Patent number: 11840146
    Abstract: In a control method for a vehicle and a vehicle controller that add deceleration to a vehicle so as to control a vehicle posture when a turning operation of a steering system is performed, the deceleration is appropriately set on the basis of an operation of a single pedal.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: December 12, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Daisuke Umetsu, Osamu Sunahara, Daisaku Ogawa