Patents Assigned to Mazda Motor Corporation
  • Patent number: 11718168
    Abstract: To provide a vehicle drive device capable of efficiently driving a vehicle by using a motor without falling into the vicious cycle between enhancement of driving via the motor and an increase in vehicle weight. The present invention is a vehicle drive device (10) having a motor for driving the wheels of a vehicle and includes a front wheel motor (20) for driving front wheels (2b) of a vehicle (1) and a battery (18) and a capacitor (22) that supply electric power for driving the front wheel motor (20), in which the voltage of the battery (18) and the capacitor (22) connected in series is applied to the front wheel motor (20) and the capacitor (22) is disposed between the left and right front wheels (2b) of the vehicle (1).
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: August 8, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Isao Toda, Seiyo Hirano, Kei Yonemori, Hideki Sanai
  • Publication number: 20230243313
    Abstract: A stop control device for an internal combustion engine is structured that stops the engine in a state suitable for starting and that does not cause a crank angle to change after the engine is stopped. A four-cycle internal combustion engine includes an electric valve opening and closing timing control device that sets an opening and closing timing of either or both of an intake valve and an exhaust valve. Stop control of stopping the internal combustion engine is performed when a stop signal for stopping the internal combustion engine is acquired, and post-stop phase control of displacing the opening and closing timing of the valve opening and closing timing control device in either an advancing direction or a retarding direction is performed after the internal combustion engine is stopped by the stop control.
    Type: Application
    Filed: May 11, 2021
    Publication date: August 3, 2023
    Applicants: AISIN CORPORATION, Mazda Motor Corporation
    Inventors: Yoshinari TOKUNAGA, Yuki KASUYA, Takano NAKAI, Kenichiro SUZUKI, Yoshiyuki KAMOYAMA, Toru HIROTA
  • Patent number: 11715374
    Abstract: When a start condition determined in advance is satisfied while a vehicle is parked, a controller controls an aircraft such that the aircraft takes off from the vehicle, a photographing unit captures a position notification image including at least the vehicle and notifying a parking position of the vehicle, and the position notification image is transmitted to a mobile terminal having a display unit and carried by a user outside the vehicle.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: August 1, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Hironobu Hashiguchi, Takashi Iwase, Akira Yasutake, Tsuyoshi Arinaga
  • Patent number: 11708472
    Abstract: In a heat-shielding film formed of addition-curing silicone resin containing organopolysiloxane, organopolysiloxane includes the combination of a plurality of units including at least a R1SiO3/2 unit (a T unit), a R2R3SiO2/2 unit (a D unit), and a R4R5R6SiO1/2 unit (a M unit) (in each unit, R1 to R6 is aliphatic hydrocarbon or hydrogen), and the molar ratio of the T unit, the D unit, and the M unit among all structural units is T:33.3 mol % to 71.4 mol %, D:11.1 mol % to 42.9 mol %, and M:7.0 mol % to 42.9 mol %.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: July 25, 2023
    Assignees: MAZDA MOTOR CORPORATION, Shin-Etsu Chemical Co., Ltd.
    Inventors: Kazuaki Yamamoto, Shinji Kadoshima, Hiroyuki Koga, Kazuyuki Negishi, Masahiko Minemura, Koichi Higuchi
  • Patent number: 11708891
    Abstract: A shift control system for an automatic transmission is provided. The system includes a shift switch through which a manual transmission command for arbitrarily changing a gear stage of the automatic transmission can be inputted in a manual transmission mode. The manual transmission mode includes a first manual mode in which the gear stage is changed and maintained by inputting the manual transmission command using the shift switch, and a second manual mode in which an automatic transmission mode is resumed by satisfying a resuming condition after the gear stage is changed. The system includes a mode input device configured to select in advance one of the first manual mode and the second manual mode to be set, the mode input device setting to the automatic transmission mode by the selected mode being changed from the first manual mode to the second manual mode, or vice versa.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: July 25, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Toshiaki Shirasago, Tomohiro Okubo, Shoji Abe, Hideyuki Nishi, Hajime Oyama, Kiminori Higo
  • Patent number: 11709127
    Abstract: Provided is a measurement method for measuring a size of expansion of a surface treatment film occurred in a coated metal material that includes a metal base and the surface treatment film provided on the metal base. The measurement method includes the steps of disposing a water-containing material to be in contact with the expansion and an electrode to be in contact with the water-containing material, and electrically connecting between the electrode and the metal base with an external circuit; applying, with the external circuit, a constant voltage between the electrode and the metal base, as a cathode and an anode, respectively, and measuring a current value flowing therebetween; and calculating a size of the expansion, based on the current value measured and a correlation between the current value and the size of the expansion, the correlation being determined on an exploratory basis in advance.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: July 25, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Teruaki Asada, Katsunobu Sasaki, Tsutomu Shigenaga
  • Patent number: 11702142
    Abstract: A front vehicle-body structure of a vehicle includes: side frames of a suspension subframe; a cross member connecting front-end portions of the side frames in the vehicle width direction; a front beam member; and a connecting member connecting a front-end portion of each side frame to the front beam member. A high-rigidity portion having a higher rigidity than other portions of the side frame is at a connecting portion between the front-end portion of the side frame and the cross member. The front beam member has a side end portion extending on a vehicle-width-direction outer side relative to a connecting position with the connecting member. A protrusion portion protruding from the side end portion toward a vehicle rear side is to come into contact with the high-rigidity portion from the vehicle-width-direction outer side when a collision load from a vehicle front side is input to the side end portion.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: July 18, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Kosuke Mukaigawa, Hiroto Kido, Satoshi Nakamura, Fumihiro Kurohara, Satoshi Okano
  • Publication number: 20230220716
    Abstract: A speed of an opening-closing action of a back door, for example, is changed from an acceleration area to a deceleration area by way of a constant-speed area, and an opening-closing action of the back door is configured to come to an end in the deceleration area. In the deceleration area, deceleration (a second deceleration in FIG. 3, a fourth deceleration in FIG. 4) of an opening-closing action of the back door at a point before the opening-closing action of the back door comes to the end is set to be smaller than another deceleration (a first deceleration in FIG. 3, a third deceleration in FIG. 4) of the opening-closing action of the back door at a deceleration start point of the opening-closing action of the back door.
    Type: Application
    Filed: October 27, 2022
    Publication date: July 13, 2023
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Kohji TAKADA, Keita HIGUCHI, Jiyou PIAO, Tomoya KURODA
  • Patent number: 11697337
    Abstract: To provide a drive system for a hybrid vehicle capable of suppressing energy loss by slip control at a start of an internal combustion engine during electric vehicle (EV) travel, a power transmission system for the hybrid vehicle is configured to couple an internal combustion engine, an electric motor, and a transmission by planetary gear mechanisms, has a brake that engages and disengages the internal combustion engine with and from a case, engages the brake during EV travel in which only the electric motor is used as a drive source, and is configured to start the internal combustion engine by disengaging the brake at the time of switching from the EV travel to hybrid vehicle (HEV) travel in which the internal combustion engine and the electric motor are used as drive sources.
    Type: Grant
    Filed: February 4, 2022
    Date of Patent: July 11, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Yasuhiro Ogauchi, Shinya Kamada, Akihiro Uchida
  • Patent number: 11697413
    Abstract: A vehicle control device includes: a signal processing IC unit that outputs image processing data; a recognition processing IC unit that performs recognition processing of the external environment of a vehicle to output external environment data obtained through the recognition processing; a judgment processing IC unit that performs judgment processing for cruise control of the vehicle; a power management unit capable of controlling an on or off state of a recognition function of the external environment of the vehicle in the recognition processing IC unit according to the conditions of the vehicle; and a bypass path for enabling data communications from the signal processing IC unit to the judgment processing IC unit without performing the recognition processing of the external environment of the vehicle by the recognition processing IC unit.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: July 11, 2023
    Assignees: MAZDA MOTOR CORPORATION, NXP B.V.
    Inventors: Eiichi Hojin, Kiyoyuki Tsuchiyama, Masato Ishibashi, Daisuke Hamano, Tomotsugu Futa, Daisuke Horigome, Atsushi Tasaki, Yosuke Hashimoto, Yusuke Kihara, Arnaud Van Den Bossche, Ray Marshal, Leonardo Surico
  • Patent number: 11691494
    Abstract: A battery unit which stores plural battery modules therein is attached to respective lower faces of a pair of floor frames at its both sides. The battery unit comprises an attaching bracket which protrudes substantially horizontally from the battery case and is positioned just below the lower face of the floor frame with a distance therebetween. A specified rigidity ratio is set for an attachment portion of the battery unit to the floor frame, and the attaching bracket is attached to the lower face of the floor frame via an intermediate part such that the above-described rigidity ratio is 0.1 or greater.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: July 4, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Morihide Yamada, Kazuhisa Hatano, Hisashi Akune, Munenari Takahashi
  • Patent number: 11692477
    Abstract: An engine system is provided, which includes 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, and a subspark plug that ignites the mixture gas inside the subchamber, an throttle valve, and a control device. In a first range, compression self-ignition combustion of the mixture gas inside the main combustion chamber is performed. In a second range, flame propagation combustion is performed while setting an air-fuel ratio of the mixture gas lower than that in the first range. Immediately after the transition from the first range to the second range, only the subignition is performed, or the subignition and the main ignition are performed while setting a timing of the main ignition to a timing same as or retarded from the subignition.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: July 4, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Ryohei Ono, Yuji Harada, Kenji Uchida
  • Patent number: 11691489
    Abstract: A door structure of a vehicle includes: an outer panel (4); an inner member (5, 11A) arranged on an inner side of the outer panel in a vehicle width direction; a rigid member (9) arranged between the inner member (5, 11A) and the outer panel (4); and a vibration suppression member (22) arranged between the outer panel (4) and the rigid member (9). The outer panel (4) includes a hem section (10f, 10r, 10u) disposed on a periphery thereof and connected to the inner member (5, 11A) by swaging. The vibration suppression member (22) includes a damping material (22A to 22C) located adjacent to the hem section (10f, 10r, 10u) and being in contact with the outer panel (4) and the rigid member (9).
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: July 4, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Kazuya Kumamoto, Tomokazu Kitagawa, Takashi Ikemoto
  • Patent number: 11691601
    Abstract: A vehicle parking brake control includes a parking switch for switching the parking brake between ON and OFF, a vehicle power source switch for switching a power source of the vehicle between ON and OFF, a parking brake controller for executing automatic application control when the power source is operated from ON to OFF by the occupant with use of the vehicle power source switch, and a prohibition condition determination unit for determining that when the parking brake is OFF, the vehicle is stopped, and the vehicle power source is ON, a prohibition condition for prohibiting automatically turning the parking brake on is satisfied when a turning-off operation for the vehicle power source switch is executed after a turning-off operation for the parking switch is executed. When a determination is made that the prohibition condition is satisfied, the parking brake controller does not execute the automatic application control.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: July 4, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Shigeyuki Uehara, Tomoji Izumi, Toshiya Oue, Takeshi Yabuki, Tsuyoshi Kojima
  • Patent number: 11691324
    Abstract: An injection molding device includes an injection machine, a molding die, and a high frequency oscillation device. The injection machine injects a resin material containing a dielectric heat generating material while keeping fluidity by temperature control. The molding die includes a cavity being a channel of flow of the resin material, and a pair of electrodes, each of which faces the cavity, the pair of electrodes being disposed to sandwich the resin material therebetween in a direction crossing a direction of the flow. The high frequency oscillation device applies a high frequency alternate-current voltage to the pair of electrodes.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: July 4, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Hidekazu Kato, Michihisa Iwamoto, Yasuhiro Tominaga, Takahiro Tanaka, Teruyuki Hamada
  • Patent number: 11691496
    Abstract: In a vehicle drive system using a motor for cruising, the connection node of serially-connected first and second batteries is grounded. The operation of an inverter is controlled so that the motor drive voltage is higher than the output voltage of each of the first and second batteries. A battery unit is configured so that third and fourth batteries each in a form of a cartridge are removably loaded, and the loaded third battery is connected in parallel with the first battery and the loaded fourth battery is connected in parallel with the second battery.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: July 4, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Akihiro Furukawa, Ikuo Usami, Kazuya Kotani, Seiyo Hirano
  • Patent number: D991273
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: July 4, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takayoshi Yamashita, Hayato Jimbo
  • Patent number: D991949
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: July 11, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takayoshi Yamashita, Hayato Jimbo
  • Patent number: D993858
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: August 1, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Kousuke Takahashi, Ichiro Sakai, Masaki Hirata, Takafumi Shimada, Yasuyuki Murata
  • Patent number: D993859
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: August 1, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Ryouichi Kayakabe, Ryokei Ono, Yuka Moriwaki, Yuta Takanashi, Shinya Mitsutake