Patents Assigned to Mazda Motor Corporation
  • Patent number: 10730558
    Abstract: A front vehicle-body structure of a vehicle, comprising a dash panel, a pair of right-and-left hinge pillars, a suspension tower, and a heat-insulating inner upper portion connecting the suspension tower and the dash panel, wherein the dash panel comprises a dash panel body, a dash cross member interconnecting respective lower portions of the hinge pillars, and a dash-panel reinforcing member joined to a portion which is positioned above the dash cross member, the heat-insulating inner upper portion is connected to the dash panel body via the dash-panel reinforcing member, and the dash-panel reinforcing member comprises a leg portion which connects the heat-insulating inner upper portion and the dash cross member and a bridge portion which interconnects respective rear ends of the heat-insulating inner upper portions.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: August 4, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Kazuki Yamauchi, Hidenori Matsuoka, Kuniyoshi Tashiro
  • Patent number: 10731590
    Abstract: A compression-ignition engine control system is provided, which includes an intake phase-variable mechanism and a controller. Within a first operating range and a second operating range on a higher engine load side, the controller controls the variable mechanism to form a gas-fuel ratio (G/F) lean environment in which an air-fuel ratio inside a cylinder is near a stoichiometric air-fuel ratio and burnt gas remains inside the cylinder, and controls a spark plug to spark-ignite mixture gas inside the cylinder to combust in a partial compression-ignition combustion. The controller controls the variable mechanism to retard the intake valve open timing on an advancing side of TDC of an exhaust stroke, as the engine load increases within the first range, and advance the intake valve close timing on a retarding side of TDC of intake stroke, as the engine load increases within the second range.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: August 4, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Atsushi Inoue, Masanari Sueoka, Keiji Maruyama, Takuya Ohura, Tomohiro Nishida, Yusuke Kawai, Tetsuya Chikada, Tatsuhiro Tokunaga
  • Publication number: 20200238585
    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: Application
    Filed: March 30, 2018
    Publication date: July 30, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Hidekazu KATO, Michihisa IWAMOTO, Yasuhiro TOMINAGA, Takahiro TANAKA, Teruyuki HAMADA
  • Publication number: 20200238823
    Abstract: A vehicle system comprises an engine driving a vehicle, a front wheel and a rear wheel, a suspension device with an attachment portion to a vehicle body which is located at a higher level than a center axis of the rear wheel, an electromagnetic coupling to distribute a torque of the engine to the front wheel and the rear wheel, a steering wheel to be operated by a driver, a steering angle sensor to detect a steering angle corresponding to operation of the steering wheel, and a controller to control the engine and the electromagnetic coupling. The controller is configured to control the electromagnetic coupling such that the torque distributed to the rear wheel is decreased in accordance with returning operation of the steering wheel which is detected by the steering angle sensor.
    Type: Application
    Filed: January 24, 2020
    Publication date: July 30, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yasumasa IMAMURA, Naoki NOBUTANI, Daisuke UMETSU
  • Publication number: 20200238995
    Abstract: A vehicle system comprises an engine driving a vehicle, a front wheel and a rear wheel, a suspension device with an attachment portion to a vehicle body which is located at a higher level than a center axis of the rear wheel, an electromagnetic coupling to distribute a torque of the engine to the front wheel and the rear wheel, a steering wheel to be operated by a driver, a steering angle sensor to detect a steering angle corresponding to operation of the steering wheel, and a controller to control the engine and the electromagnetic coupling. The controller is configured to control the electromagnetic coupling such that the torque distributed to the rear wheel is increased in accordance with turning operation of the steering wheel which is detected by the steering angle sensor.
    Type: Application
    Filed: January 24, 2020
    Publication date: July 30, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yasumasa IMAMURA, Naoki NOBUTANI, Daisuke UMETSU
  • Publication number: 20200238362
    Abstract: A lower mold includes: refrigerant ejection ports in its press-molding surface; and three or more independent refrigerant guide grooves extending in the press-molding surface from the refrigerant ejection ports to guide the refrigerant ejected from the refrigerant ejection port to an outer portion of the press-molding surface with the refrigerant being in contact with a workpiece. Each of the refrigerant guide grooves neither branches halfway nor merges with the others of the refrigerant guide grooves to extend from the refrigerant ejection ports to the outer portion of the press-molding surface.
    Type: Application
    Filed: January 13, 2020
    Publication date: July 30, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yuri TAKAHASHI, Takeshi MATSUDA, Kenji NAKAMURA, Chie OKAWA, Ichirou INO, Naoyuki IRIE
  • Publication number: 20200238921
    Abstract: Disclosed is a vehicle display system (1) for displaying an image of surroundings of a vehicle. The vehicle display system (1) includes: a display (18a) configured to display an image thereon; a camera (4, 6, 8, 10) mounted on the vehicle and configured to image surroundings of the vehicle; and a display control unit (20) configured to subject an image captured by the camera to mask processing, using a mask image (MR, MF) including a semi-transparent portion (M3, M4, M14, M16) corresponding to a vehicle body, and a portion (M8, M18, M19) corresponding to a window of the vehicle and having a transmittance lower than that of the portion corresponding to the vehicle body, to generate a masked image (D), and cause the masked image to be displayed on the display.
    Type: Application
    Filed: October 10, 2018
    Publication date: July 30, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yoshiaki MATSUBA, Tomonori OHTSUBO
  • Publication number: 20200238980
    Abstract: Disclosed is a vehicle control device which comprises a traveling course control part 10a to update a target traveling course R, and an automatic emergency avoidance control part (10b, 10e) to execute automatic emergency avoidance control processing for automatically operating a given control system to avoid collision with an obstacle. The part 10a corrects the target traveling course R to calculate plural corrected traveling course candidates for avoiding the obstacle, and evaluates the candidates by an evaluation function J to select one of the candidates as a corrected traveling course. The part 10a generates a first request signal for allowing the vehicle 1 to travel along the corrected traveling course. The emergency avoidance course control part (10b, 10e) generates a second request signal. The vehicle control device further comprises an output control part 10d to output the first or second request signal to the given control system.
    Type: Application
    Filed: August 23, 2018
    Publication date: July 30, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takashi GOTO, Hiroshi OHMURA, Kouji HOSODA, Tetsuya TACHIHATA, Takashi NAKAGAMI, Yuma NISHIJO, Yasuhiro KAWAHARA, Shota KATAYAMA
  • Publication number: 20200238363
    Abstract: A lower mold includes: refrigerant ejection ports in its press-molding surface; refrigerant guide grooves in the press-molding surface to guide a refrigerant ejected from the refrigerant ejection ports to an outer portion of the press-molding surface with the refrigerant being in contact with a workpiece; a single connecting groove connected to the refrigerant guide grooves and formed at the outer portion of the press-molding surface into which the refrigerant flows through the refrigerant guide grooves; and discharge ports in the connecting groove. Each of the refrigerant discharge ports is formed at a part of the connecting groove apart from the connecting points between the connecting groove and the refrigerant guide grooves.
    Type: Application
    Filed: January 13, 2020
    Publication date: July 30, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yuri TAKAHASHI, Takeshi MATSUDA, Kenji NAKAMURA, Chie OKAWA, Ichirou INO, Naoyuki IRIE
  • Publication number: 20200231150
    Abstract: A system, method and computer program product provide vehicle driving assistance, wherein candidate travel routes for the vehicle are analyzed to identify one of the travel routes as a selected travel route. The selection includes calculating a route cost associated with directing the vehicle to ride over a center of a travel lane, for each of the candidate routes and selecting the one with the lowest cost.
    Type: Application
    Filed: January 10, 2020
    Publication date: July 23, 2020
    Applicant: Mazda Motor Corporation
    Inventor: Hideki TAKAHASHI
  • Publication number: 20200231219
    Abstract: A rear vehicle-body structure comprises a floor of the vehicle-body, a right-and-left rear frame extending in a vehicle longitudinal direction on both-sides of a rear of the floor, a rear cross member extending in a vehicle width direction and interconnecting a front of the right-and-left rear frame, and a right-and-left reinforcing member directly or indirectly connecting a tunnel portion provided in front of the rear cross member. The right-and-left reinforcing member is provided on the floor so as to extend forwardly and inwardly in the vehicle width direction from the rear cross member toward the tunnel portion, and respective front end portions of the right-and-left reinforcing member overlap each other and are joined to the floor.
    Type: Application
    Filed: January 17, 2020
    Publication date: July 23, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Hideyuki TSUKAMOTO, Kouji MATSUSHITA
  • Publication number: 20200232805
    Abstract: A system and method provide vehicle driving assistance, wherein candidate travel routes for the vehicle are analyzed to identify one of the travel routes as a selected travel route. The selection includes calculating a route cost associated with vehicle acceleration or deceleration, for each of the candidate routes and selecting the one with the lowest cost.
    Type: Application
    Filed: January 10, 2020
    Publication date: July 23, 2020
    Applicant: Mazda Motor Corporation
    Inventor: Hideki TAKAHASHI
  • Publication number: 20200231098
    Abstract: A vehicular auxiliary machine is disposed between seats arranged side by side in a vehicular width direction of a vehicle body. A bracket is a member on which the vehicular auxiliary machine is mounted, and which is fixed to the vehicle body. The vehicular auxiliary machine includes a harness connecting portion disposed in such a way as to locate on a side of one of the seats. The bracket includes a base surface and a pair of vertical wall portions. Further, the bracket includes a rib spanning between a harness connecting portion and the base surface, on a harness-side vertical wall portion of the paired vertical wall portions close to the harness connecting portion.
    Type: Application
    Filed: February 6, 2018
    Publication date: July 23, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yohsuke TAKENAGA, Takeshi FUKUNAGA, Hisakazu KONISHI
  • Publication number: 20200232905
    Abstract: A corrosion resistance tester for a coated metal material including a surface treatment film on a metal substrate includes: a container placed on the surface treatment film, and having a bottom surface in contact with the surface treatment film, the container including a plurality of water-containing electrolyte material holders that open through the bottom surface; the water-containing electrolyte material contained in each of the water-containing electrolyte material holders of the container, and being in contact with an associated one of a plurality of separate measurement target portions of the surface treatment film; a plurality of electrodes being each in contact with the water-containing electrolyte material contained in an associated one of the water-containing electrolyte material holders; an external circuit connecting the electrodes together; and a conduction means configured to conduct electricity to the metal substrate through the electrodes and the external circuit.
    Type: Application
    Filed: December 30, 2019
    Publication date: July 23, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Teruaki ASADA, Katsunobu SASAKI, Tsutomu SHIGENAGA
  • Publication number: 20200231221
    Abstract: A rear vehicle-body structure comprises a rear-floor front part on which a rear seat is placed and which is inclined such that a front side thereof is located at a higher level than a rear side thereof, a right-and-left reinforcing extension having a rear end that is positioned on both sides, in a vehicle width direction, of the rear-floor front part. The right-and-left reinforcing extension extends forwardly and inwardly, in the vehicle width direction, from the rear end. The rear vehicle-body structure further includes a right-and-left second reinforcing extension provided on an outward side in the vehicle width direction of the right-and-left first reinforcing extension, and is configured to extend forwardly and outwardly in the vehicle width direction from a vicinity of the rear end of the right-and-left first reinforcing extension.
    Type: Application
    Filed: January 17, 2020
    Publication date: July 23, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Hideyuki TSUKAMOTO, Akiyoshi MASUDA, Kouji MATSUSHITA
  • Publication number: 20200233425
    Abstract: A system, method and computer program product provide vehicle driving assistance, wherein candidate travel routes for the vehicle are analyzed to identify one of the travel routes as a selected travel route. The selection includes calculating a route cost associated with vehicle acceleration/deceleration, for each of the candidate routes and selecting the one with the lowest cost.
    Type: Application
    Filed: January 10, 2020
    Publication date: July 23, 2020
    Applicant: Mazda Motor Corporation
    Inventor: Hideki TAKAHASHI
  • Publication number: 20200232380
    Abstract: A cavity includes a lower-side cavity, an upper-side cavity, a first lip and a second lip. The upper-side cavity has a guide curved surface which extends along a circumference of a first imaginary circle in a section along a cylinder-axis direction, and the first lip has a curved surface which extends along a circumference of a second imaginary circle in a section along the cylinder-axis direction. An angle X which a cylinder axis makes with a common tangential line of the first imaginary circle and the second imaginary circle is set as 75°<X<80°. The guide curved surface is configured such that an angle Y of this guide curved surface which occupies at the circumference of the first imaginary circle is set as 80°<Y<(180°?X).
    Type: Application
    Filed: January 10, 2020
    Publication date: July 23, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Sangkyu Kim, Takashi Sumimoto, Shintaro Okada, Daisuke Shimo, Shuji Takuma
  • Publication number: 20200233424
    Abstract: A system, method, and computer readable medium provide vehicle driving assistance, wherein candidate travel routes for the vehicle are analyzed to identify one of the travel routes as a selected travel route. The selection includes calculating a route cost associated with vehicle lateral acceleration, for each of the candidate routes and selecting the one with the lowest cost.
    Type: Application
    Filed: January 10, 2020
    Publication date: July 23, 2020
    Applicant: Mazda Motor Corporation
    Inventor: Hideki TAKAHASHI
  • Patent number: 10718425
    Abstract: In a brake device of a transmission, rotation side friction plates are engaged with a cylindrical part of a rotation side holding member, and fixed side friction plates are engaged with a spline part that is provided on an outer peripheral surface of an inner cylindrical part of a fixed side holding member opposed to a cylindrical part of the rotation side holding member. The fixed side holding member includes an inflow oil passage that supplies lubricating oil from the outside to the inside of the radial direction thereof. An annular space communicating with an inflow oil passage is provided on the inside of the cylindrical part of the fixed side holding member. Oil discharge holes supplying lubricating oil, which was flowed into the annular space, to the rotation side and fixed side friction plates are provided on the cylindrical part of the fixed side holding member.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: July 21, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Takashi Nishioka, Tatsuhiko Iwasaki, Norio Iwashita, Tomotaka Ishizaka
  • Patent number: 10718484
    Abstract: Lamp unit includes a housing having a front opening portion and a rear opening portion, and a lamp main body disposed in the housing. The lamp main body includes a lamp case extending in a longitudinal direction of the vehicle in a position closer to a widthwise outer side of the front opening portion and spaced away from a widthwise outer edge of the front opening portion toward a widthwise inner side, and inner side and first outer side heat dissipation fins and protruding from the lamp case to the inner side and outer side in the vehicle width direction. The outer side heat dissipation fin protrudes greater than the inner side heat dissipation fin.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: July 21, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Norihito Iwao, Takahiro Matsui, Ryoma Makino