Patents Assigned to Mazda Motor Corporation
  • Patent number: 11919570
    Abstract: To simultaneously avoid contact with a front subframe and secure a connection space for a harness, a front subframe has a right and left pair of side frame sections, each of which is located in front of and below a dashboard. A converter and a vehicle component are provided behind a rear end portion of one of the side frame sections. The converter is arranged along a lower surface of a floor panel, and the vehicle component is arranged adjacent to rear of the converter. The converter is arranged in a vertically inclined state, a front-end portion of the converter is located higher than the rear end portion of the side frame section, and a rear end portion of the converter is located lower than the vehicle component.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: March 5, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Masanao Sato, Katsutoshi Noguchi, Tomokazu Murakami, Yudai Kawaguchi
  • Patent number: 11921191
    Abstract: The object recognition device includes at least one sensor, a data reception unit, and a setting unit. The sensor detects an object present in a detectable range and transmits object data including a plurality of physical quantities indicating a state of the object. The data reception unit receives the object data from the sensor. The setting unit generates prediction data which predicts current object data based on at least a part of past object data received by the data reception unit and a motion model in the object, and sets a association possible region for determining a association between the prediction data and the current object data based on a plurality of physical-quantity delay times each corresponding to each of the plurality of physical quantities included in the prediction data.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: March 5, 2024
    Assignees: Mitsubishi Electric Corporation, MAZDA MOTOR CORPORATION
    Inventors: Tomohiro Akiyama, Takayuki Moritani
  • Patent number: 11919455
    Abstract: A trunk structure for a vehicle improves retainment performance of goods to a vehicle body in a cargo net, and improves flexibility of the layout of a trunk board. The trunk structure includes a trunk board, a hook member attached to the trunk board to which a cargo net covering goods can be locked, an interior member which constitutes an inside surface of a trunk, and an engaged portion of the interior member which the hook member can engage, the engaged portion restraining movement of the trunk board in an up-down direction when the engaged portion is engaged with the hook member. The hook member is switchable between an engaged state where the hook member engages the engaged portion and a non-engaged state where the engagement is released, and retains the engaged state by locking the cargo net to the hook member.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: March 5, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Shinji Ishii, Keita Miyamoto, Takafumi Kawaura, Shumpei Kuwamura
  • Publication number: 20240067269
    Abstract: A front side frame has a first deformation promotion portion to bend and deform a front side frame inwardly in a case where a collision load is applied to a vehicle from a vehicle front side, a front vehicle-body structure further comprises a load transmission portion positioned in front of a suspension housing between the front side frame and an apron reinforcement so as to transmit the collision load to the suspension housing, the load transmission portion being provided to connect the front side frame and the apron reinforcement so as to transmit a tensional load applied in a vehicle width direction between the front side frame and the apron reinforcement, and the load transmission portion has a second deformation promotion portion positioned in the vicinity of the first deformation promotion portion and promoting the bending/deforming of the front side frame.
    Type: Application
    Filed: February 23, 2023
    Publication date: February 29, 2024
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Kenta TACHIBANA, Takashi NARAHARA, Yasushi ISHIKAWA
  • Patent number: 11912288
    Abstract: A controller causes a calculation device to perform calculation that determines an operation of a moving object and generates digital signals that define the operations of actuators. The generated digital signals are output to a digital signal transmission path by a signal bus control IC. ICs attached to the actuators obtain digital signals that define the operations of the actuators from the digital signal transmission path and generate control signals for the actuators based on the operations defined by the digital signals.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: February 27, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventor: Yasuhiro Harada
  • Patent number: 11913871
    Abstract: A physical property evaluation method is the method for evaluating physical properties of a film-shaped measurement target object by means of an electrochemical method, the method including the step of causing an electrolytic solution to contact a front surface of the measurement target object. The speed of penetration of the electrolytic solution into the measurement target object is adjusted in such a manner that the levels of the front-side temperature and the back-side temperature of the measurement target object and a difference between the front-side temperature and the back-side temperature of the measurement target object are adjusted.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: February 27, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Teruaki Asada, Tatsuya Ezaki, Tsutomu Shigenaga, Akihide Takami
  • Patent number: 11912284
    Abstract: An alighting assistance device D of the present disclosure may be a device moving a driver seat rearward in a case where a determination may be made that an occupant seated on the driver seat of a vehicle alights. The device may include a height changer which changes a height of a steering wheel, a sitting height acquirer which acquires a sitting height of the occupant, and a steering wheel controller 33 as one example of a height controller which controls the height changer such that the height of the steering wheel becomes lower as the sitting height acquired by the sitting height acquirer may be higher in the case where a determination is made that the occupant alights.
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: February 27, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Yoshito Hirata, Tomonori Ohtsubo, Hiroki Uemura, Kengo Iwata, Masato Maeda, Hiroaki Matsuda, Masahito Kashihara, Chieko Nakagami
  • Patent number: 11906042
    Abstract: A gear shift control device of an automobile includes memory storing a gear shift map that defines, for each of gear shift points, thresholds of the number of revolutions to determine a switching start timing of each of the gear positions, a transmission control unit that performs switching between the gear positions based on the gear shift map, and a regeneration control unit that controls regeneration. The gear shift map includes a non-cooperative regeneration map that defines the thresholds of revolutions lower than the thresholds in a cooperative request map used in cooperative regeneration, and the non-cooperative regeneration map includes a combustion request map that defines the thresholds of low revolutions and is used when an accelerator is not used, and a travel request map that defines the thresholds of relatively higher revolutions and is used when the accelerator is used.
    Type: Grant
    Filed: March 27, 2023
    Date of Patent: February 20, 2024
    Assignee: Mazda Motor Corporation
    Inventors: Daigo Nishikori, Hiroaki Gotan, Akina Inagaki, Tomohiro Okubo, Kiminori Higo, Takayuki Mikami
  • Patent number: 11897537
    Abstract: A driver assistance system is provided that allows a driver to easily perform an accelerator operation by a finger of his/her hand while grasping a steering holding section. The driver assistance system includes an operation member near a steering wheel held by a driver, which rotates about a rotation shaft in a vehicle front-rear direction and thereby steers the vehicle. The operation member has an operation section that the driver can manually operate to accelerate/decelerate the vehicle, and includes a support member on the steering wheel, the support member supporting the operation member in a slidingly displaceable manner along a steering axial direction. The operation section is disposed near a radially inner side of a rim section of the steering wheel, and the operation section and the rim section overlap in the steering axial direction within a movable range of the operation member along the steering axial direction.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: February 13, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Yoshihiro Yamamoto, Yasuyuki Tonohara, Keiichi Yamasaki, Katsuhisa Maedo, Kenichi Nakamoto
  • Patent number: 11891122
    Abstract: Provided is a frame which is made of a fiber reinforced composite and has an increased bending strength by suppressing occurrence of buckling. The frame which is made of a fiber reinforced composite includes: a compressive wall part where a compressive stress occurs in a longitudinal direction of the frame when the frame receives a bending load in a normal direction perpendicularly intersecting the longitudinal direction; and a side wall part extending in the normal direction and defining one of corners with the compressive wall part. The compressive wall part includes a longitudinal alignment layer having reinforcement fibers aligned in the longitudinal direction. The side wall part has a surface section composed of a normal directional alignment layer having reinforcement fibers aligned in a direction different from the longitudinal direction, and serving as a differential alignment layer.
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: February 6, 2024
    Assignees: MAZDA MOTOR CORPORATION, NIPPON STEEL Chemical & Material Co., Ltd.
    Inventors: Chikara Kawamura, Tetsuya Sugiyama
  • Patent number: 11891963
    Abstract: A method of controlling an engine is provided, which includes the steps of, during motoring of the engine, injecting, by an injector, fuel for analysis into a cylinder at a specific timing after an intake valve of the cylinder of the engine is closed, outputting to a controller, by an in-cylinder pressure sensor, a signal corresponding to a pressure inside the cylinder at least at a timing when a specific crank angle period has passed from the fuel injection timing, and determining, by the controller, a property of the fuel injected by the injector, by comparing a pressure value measured by the in-cylinder pressure sensor with a reference pressure value inside the cylinder measured at a timing when the specific crank angle period has passed after a standard fuel is injected into the cylinder at the specific timing.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: February 6, 2024
    Assignee: Mazda Motor Corporation
    Inventors: Yoshihisa Nou, Fumihiko Saito
  • Patent number: 11894711
    Abstract: An in-vehicle wireless electric power feeding device is used in a vehicle, wirelessly performs electric power feeding to an electric power reception device (e.g., smartphone), and stops the electric power feeding at a temperature not lower than or higher than a predetermined first temperature threshold. The in-vehicle wireless electric power feeding device SD includes an electric power transmission unit that wirelessly performs electric power feeding to the electric power reception device, a temperature measurement unit that measures the temperature of the electric power transmission unit, and a control unit that controls the electric power transmission unit so that the electric power transmission unit wirelessly performs electric power feeding to the electric power reception device when the temperature measured by the temperature measurement unit at startup is not higher than or lower than a predetermined second temperature threshold higher than the first temperature threshold.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: February 6, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Ryohei Takagi, Maho Tanaka, Takayoshi Nishijima
  • Patent number: 11891065
    Abstract: A vehicle gear-shifting control apparatus is equipped with an engine, a motor, an automatic transmission, a friction brake system, and a controller which executes, during deceleration of a vehicle during which the friction brake system is distributing a braking force to front and rear wheels, a regeneration control of imparting a regenerative braking torque to the rear wheels by causing the motor to perform a regeneration operation and a gear-shifting control of changing a shift stage of the automatic transmission by outputting a gear-shifting signal in accordance with the rotation speed of an input shaft to the automatic transmission. When the controller determines an oversteered state of the vehicle during the regeneration control, the controller increases an input torque of the input shaft so that the regenerative braking torque decreases while maintaining the regeneration operation of the motor and, at the same time, limits the gear-shifting control.
    Type: Grant
    Filed: March 24, 2023
    Date of Patent: February 6, 2024
    Assignee: Mazda Motor Corporation
    Inventors: Makoto Yamada, Tooru Uematsu, Atsushi Yamasaki
  • Patent number: 11892077
    Abstract: A vehicle gear-shifting control apparatus is equipped with an engine, an automatic transmission, and a controller which changes a shift stage by outputting a gear-shifting signal in accordance with the rotation speed of an input shaft to the automatic transmission. The controller executes a torque-regulating control of temporarily increasing or decreasing an input torque input to the input shaft during a shift-change, and when executing the control, determines whether or not a target increase/decrease amount of the input torque can be realized based on calculation results of a target output torque and a target gear-shifting time, executes the control to realize the target amount when it is determined that the target amount can be realized, and executes the control based on an allowable gear-shifting time set in advance to be longer than the target gear-shifting time when it is determined that the target amount cannot be realized.
    Type: Grant
    Filed: March 27, 2023
    Date of Patent: February 6, 2024
    Assignee: Mazda Motor Corporation
    Inventors: Makoto Yamada, Yasunari Nakayama, Yusuke Moriyama, Wataru Sakamoto
  • Patent number: 11891973
    Abstract: An engine system is provided, which includes a cylinder block, a cylinder head, a piston, a main combustion chamber, a subchamber, an injector that injects fuel into the main combustion chamber, a main spark plug that ignites a mixture gas inside the main combustion chamber, a subspark plug that ignites the mixture gas inside the subchamber, and a controller electrically connected to the injector, the main spark plug and the subspark plug. When an engine speed is above a given reference engine speed, the controller controls, in a low-load range below a given reference load, the ignition devices so that the subignition is performed after the main ignition, and the controller controls, in a high-load range exceeding the reference load, the ignition devices so that only the subignition is performed, or so that the main ignition is performed at the same timing as or after the subignition.
    Type: Grant
    Filed: July 18, 2022
    Date of Patent: February 6, 2024
    Assignee: Mazda Motor Corporation
    Inventors: Ryohei Ono, Yuji Harada, Kenji Uchida
  • Publication number: 20240030079
    Abstract: Provided is a switching device 1 including a drain fin 103 arranged below a semiconductor chip 101 via a common mode current suppression structure 2. The common mode current suppression structure 2 includes a first insulating layer 2a joined on the drain fin 103, an electric conductive layer 2b joined on the first insulating layer 12a, a second insulating layer 2c joined on the electric conductive layer 2b, and an electrode conductor 2d joined on an upper surface of the second insulating layer 2c and joined to a drain electrode 101a of the semiconductor chip 101. The electric conductive layer 2b is electrically connected to a source electrode 101b of the semiconductor chip 101.
    Type: Application
    Filed: March 23, 2023
    Publication date: January 25, 2024
    Applicant: Mazda Motor Corporation
    Inventor: Kouichi YAMANOUE
  • Publication number: 20240032266
    Abstract: Provided is an inverter 1 configured such that an electric component portion 1a is integrated with a cooling portion 1b. A switching module 20 includes a heat sink 102 joined to the lower surface of a substrate 101. The cooling portion 1b includes an electric conductive cooler 10 forming a refrigerant flow path 11. The switching module 20 is attached to the cooler 10 such that a heat radiation portion 102d of the heat sink 102 is exposed to the inside of the cooler 10. A common mode current suppression structure 21 including an insulating member is interposed between the heat sink 102 and the cooler 10 to electrically insulate the heat sink 102 and the cooler 10 from each other.
    Type: Application
    Filed: March 23, 2023
    Publication date: January 25, 2024
    Applicant: Mazda Motor Corporation
    Inventor: Kouichi YAMANOUE
  • Patent number: 11878576
    Abstract: The vehicle door structure includes: a door outer panel including a projected section that projects outward in a vehicle width direction, a recessed section that is separated from the projected section and recessed inward in the vehicle width direction, and a boundary section between the projected section and the recessed section; and a panel reinforcement fixed to an inner surface in the vehicle width direction of the door outer panel. The panel reinforcement includes: a first frame section that extends in a vehicle front-rear direction; and a second frame section at a position that overlaps the boundary section in the vehicle side view and is configured to be able to transmit a load to the first frame section at the time when the load in an inward direction of the vehicle width direction is applied to the boundary section.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: January 23, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Daisuke Nakayama, Kyohei Yukita, Tomohiro Komaji
  • Patent number: 11878740
    Abstract: A clearance is created between an inner circumference of a bushing main body (2) which surrounds a rack (5) across a row of rack gear teeth (50) and an outer circumference of the rack (5), and two supporting surfaces (21A, 21B) which face each other with a bushing main body axis O therebetween and a supporting surface (21C) which faces a back surface of the rack (5), each extending along an x-axis direction, are formed on the inner circumference of the bushing main body (2). The rack (5) in a neutral state is supported by the two supporting surfaces (21A, 21B) so as to be displaceable along a z-axis direction, and the rack (5) in operation is stably supported by the three supporting surfaces (21A-21C) at three places.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: January 23, 2024
    Assignees: MAZDA MOTOR CORPORATION, KYB CORPORATION, OILES CORPORATION
    Inventors: Gaku Ikeyama, Kazuya Sato, Junya Kuwagaki, Yoshimitsu Fumimoto, Masaki Takahashi, Tomonori Taniguchi, Takuzo Ito, Mitsuhiko Fujikake, Hiroki Masuda, Hiroyuki Kikuchi, Jun Ouchi, Kazuhiko Akeda
  • Publication number: 20240018365
    Abstract: A multilayer coating film includes a lustrous layer containing a luster material and a colored layer containing a reddish coloring agent, and having translucency. Regarding a Y value of an XYZ colorimetric system calibrated with a standard white plate, when a light incident angle is 45°, Y(5°) represents a Y value of reflected light measured at a light receiving angle of 5°, and Y(15°) represents a Y value of reflected light measured at a light receiving angle of 15°, the lustrous layer satisfies the following: Y(5°) is 30 or more to 700 or less; Y(15°)=k×Y(5°) (where k is a coefficient); and k is 0.01 or more to 0.3 or less. The concentration of the reddish coloring agent in the colored layer is 1 mass % or more to 17 mass % or less.
    Type: Application
    Filed: October 22, 2021
    Publication date: January 18, 2024
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takakazu YAMANE, Keiichi OKAMOTO, Kouji TERAMOTO, Ryuji NONAKA, Kazuteru TAMAI, Eiichi KAWASE, Tomohiro FUJIMOTO, Takayoshi NAKAMOTO