Patents Assigned to Toyota Jidosha Kabushiki Kaisha
  • Publication number: 20180332591
    Abstract: A wireless terminal, comprises an intercept mode evaluation unit configured to evaluate a congestion state of wireless resources, based on a communication state of other terminals intercepted during executing an intercept mode, which is a mode of intercepting communication by the other terminal; and a transmission mode execution unit configured to execute a transmission mode, in which the wireless terminal performs transmission and reception, without executing the intercept mode when the intercept mode evaluation unit evaluates that an off-time has set in.
    Type: Application
    Filed: May 2, 2018
    Publication date: November 15, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ryokichi ONISHI
  • Publication number: 20180330615
    Abstract: Provided is a road obstacle detection method including: a region segmentation step of segmenting an input image into a plurality of local regions; and a likelihood calculation step of calculating a probability of presence of the road obstacle in a target local region based on a probability that the target local region is not a normal object set in advance and a degree of visual saliency defined by a relationship between a surrounding local region and the target local region, wherein the degree of the visual saliency is calculated to be larger as a probability that the surrounding local region is a road is higher and calculated to be larger as a difference in visual characteristics between the target local region and the surrounding local region is larger.
    Type: Application
    Filed: April 27, 2018
    Publication date: November 15, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masao YAMANAKA, Yasuyuki KUSUMOTO
  • Publication number: 20180329810
    Abstract: A test method for a first module that is performed by an information processing device includes integrating a second module or a test module that performs the same response as the second module to the first module, performing an integration test on a module group including at least the first module, and outputting any one of a result of an integration test for the first module and the second module and a result of an integration test for the first module based on determination data indicating which one of the second module and the test module is integrated to the first module.
    Type: Application
    Filed: May 11, 2018
    Publication date: November 15, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinichi SUZUKI, Hideaki YAJIMA
  • Publication number: 20180328246
    Abstract: An exhaust gas purification system comprise a first fuel supply unit to supply fuel to exhaust gas flowing in an exhaust passage by a supply valve arranged in the exhaust passage, and a second fuel supply unit to supply fuel to exhaust gas by adjusting a fuel injection condition wherein in a temperature raising stage of the NOx SCR catalyst associated with the exhaust gas temperature raising processing, first control is performed in which fuel is supplied by the first fuel supply unit, and in a temperature holding stage of the NOx SCR catalyst associated with the exhaust gas temperature raising processing, at least second control is performed in which the ratio of an amount of fuel supply by the second fuel supply unit with respect to an amount of fuel supply by the first fuel supply unit becomes higher in comparison with that when performing the first control.
    Type: Application
    Filed: December 15, 2015
    Publication date: November 15, 2018
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Akira Mikami, Shigeki Nakayama, Keishi Takada, Nobumoto Ohashi, Junichi Matsuo
  • Publication number: 20180331376
    Abstract: There is provided a fuel cell system comprising a fuel cell including an electrolyte membrane, an anode and a cathode; and a controller configured to control a fuel gas supply part and an oxidizing gas supply part to supply amounts of a fuel gas and an oxidizing gas corresponding to a required power, to the fuel cell. During an intermittent operation that has the required power equal to or lower than a predetermined value and stops power generation in the fuel cell, the controller estimates a crossover amount that is an amount of the fuel gas moved from the anode to the cathode through the electrolyte membrane. The controller also calculates a supply amount of the oxidizing gas that is an amount of the oxidizing gas to be supplied to the fuel cell, based on the estimated crossover amount and controls the oxidizing gas supply part to supply the calculated supply amount of the oxidizing gas to the fuel cell.
    Type: Application
    Filed: May 9, 2018
    Publication date: November 15, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke Miyamoto, Tomotaka Ishikawa, Atsuo Iio
  • Publication number: 20180329416
    Abstract: An automatic driving system includes an electronic control device configured to: detect a driving operation input amount during an automatic driving control for a vehicle; determine whether the driver is able to start manual driving during the automatic driving control for the vehicle; output a signal for performing switching from automatic driving to the manual driving based on a result of a comparison between the driving operation input amount and a driving switching threshold that is a threshold for the switching from the automatic driving to the manual driving; set the driving switching threshold to a first driving switching threshold when it is determined that the driver is able to start the manual driving; and set the driving switching threshold to a second driving switching threshold exceeding the first driving switching threshold when it is determined that the driver is not able to start the manual driving.
    Type: Application
    Filed: July 5, 2018
    Publication date: November 15, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kentaro ICHIKAWA, Taisuke SUGAIWA
  • Publication number: 20180329421
    Abstract: Provided is a road link information updating device including an information acquisition unit configured to acquire speed information on a plurality of communication target vehicles in association with positions of the communication target vehicles, a road link information database configured to store road link information on a plurality of nodes and a road link connecting the nodes to each other, an inflection point position recognition unit configured to recognize an inflection point position in the road link from a change in the vehicle speed or the acceleration, a road link information updating unit configured to update the road link information by using the inflection point position as the node, and a recommended speed setting unit configured to set a recommended speed to the node, on the basis of the speed information and the road link information.
    Type: Application
    Filed: May 14, 2018
    Publication date: November 15, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshiki KINDO, Ryo IGARASHI, Junichi MEGURO, Kunihiro GOTO
  • Publication number: 20180328252
    Abstract: An exhaust gas control system for an internal combustion engine includes: a first catalyst disposed on an exhaust passage for the internal combustion engine, the first catalyst being a NOx storage reduction catalyst; a second catalyst disposed on the exhaust passage at a position downstream of the first catalyst, the second catalyst being a NOx selective catalytic reduction catalyst; a first NOx sensor mounted on the exhaust passage at a position between the first catalyst and the second catalyst; a second NOx sensor mounted on the exhaust passage at a position downstream of the second catalyst; and an electronic control unit. The electronic control unit is configured to evaluate NOx reducing performance of the second catalyst based on a value detected by the first NOx sensor and a value detected by the second NOx sensor, when an evaluation condition is satisfied.
    Type: Application
    Filed: April 26, 2018
    Publication date: November 15, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Rio OOMUKAI
  • Publication number: 20180326965
    Abstract: A vehicle brake system including a hydraulic brake device having two systems and configured to generate a braking force, wherein, in a failure condition of one of the two systems, one of the following two operation modes of the hydraulic brake device is selectively established: (a) a two-wheel mode in which master shut-off valves shut respective master fluid passages and a braking force that depends on a pressure of a working fluid supplied from a master cylinder is generated for each of right and left wheels; and (b) a one-wheel mode in which one of the master shut-off valves corresponding to the other of the two systems shuts off the corresponding master fluid passage and a braking force that depends on the working fluid supplied by a controlled-pressure supply device is generated for only one of the right and left wheels that corresponds to the other of the two systems.
    Type: Application
    Filed: April 19, 2018
    Publication date: November 15, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Naoki YAMAMOTO
  • Publication number: 20180326979
    Abstract: Disclosed is a driving assist apparatus which executes a process for collision avoidance when the possibility of collision of a vehicle with an obstacle is high. When the steering angle of the steering wheel is greater than an angle threshold, the apparatus determines that a driver is trying to avoid the collision by operating the steering wheel and does not execute the collision avoidance process. When the vehicle is making a right turn or a left turn, there arises a possibility that the collision avoidance process is not executed even in a situation where the collision avoidance process must be executed. In view of this, when the vehicle is making a right turn or a left turn, the angle threshold mentioned above is set to a larger value as compared with the case where the vehicle is not making a right turn or a left turn.
    Type: Application
    Filed: May 10, 2018
    Publication date: November 15, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noriyuki TSURUOKA, Kohei MOROTOMI
  • Publication number: 20180328476
    Abstract: A torque converter includes a housing, and a fluid-operated power transmitting portion and a vibration damping device which are accommodated within the housing and which are disposed around an axis such that the vibration damping device is located adjacent to the fluid-operated power transmitting portion in a direction of the axis, the torque converter further includes a space occupying member which occupies a part of a space formed within the housing and between the fluid-operated power transmitting portion and the vibration damping device. The space occupying member comprises a wall surface facing the fluid-operated power transmitting portion in the direction of the axis. A distance in the direction of the axis between a part of the wall surface and the fluid-operated power transmitting portion is smaller than a distance in the direction of the axis between the part of the wall surface and the vibration damping device.
    Type: Application
    Filed: May 15, 2018
    Publication date: November 15, 2018
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuji SUZUKI, Hiroyuki Amano, Yu Miyahara, Shuhei Horita
  • Publication number: 20180328242
    Abstract: An internal combustion engine includes: a case; an oil pan disposed below the case; an oil filter into which oil inside the oil pan flows; and a guide that guides oil flowing out from the oil filter and flowing down along a sidewall surface of the case. The guide includes a projection that is provided continuously in a transverse direction in the sidewall surface of the case and extends so as to project outside the case from the sidewall surface, a descending portion that is extended downward from an outer peripheral edge of the projection, and a collecting portion that is positioned in a lower end edge of the descending portion and collects the oil that flows along the sidewall surface of the case downwardly from the projection through the descending portion.
    Type: Application
    Filed: April 30, 2018
    Publication date: November 15, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shunji MORIHIRO
  • Publication number: 20180326987
    Abstract: A control apparatus for a vehicle provided with (a) a transmission and (b) a shifting device including (b-1) a shift actuator and (b-2) a shift lever. The shift actuator establishes one of shift ranges in the transmission such that the established one of the shift ranges corresponds to a selected one of shift-lever operating positions of the shift lever. When a switching request is made to request the transmission to be switched to an opposite-direction drive range that is for driving the vehicle in a direction opposite to a current running direction of the vehicle, during running of the vehicle with a speed being not lower than a given value, the control apparatus rejects the switching request. The control apparatus rejects the switching request, also during running of the vehicle with the running speed being lower than the given value, if the vehicle is running on a downhill road.
    Type: Application
    Filed: April 23, 2018
    Publication date: November 15, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazumi SHINE, Kazuhiko YAMADA
  • Publication number: 20180328243
    Abstract: An internal combustion engine includes: a case; an oil pan disposed below the case; an oil filter into which oil inside the oil pan flows; and a guide that guides oil flowing out from the oil filter and flowing down along a sidewall surface of the case, the guide projecting such that an end portion of the guide is positioned outside a sidewall surface of the oil pan.
    Type: Application
    Filed: April 30, 2018
    Publication date: November 15, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shunji MORIHIRO
  • Publication number: 20180328269
    Abstract: A control device for an internal combustion engine including a turbocharger and a negative-pressure waste gate valve includes an electronic control unit configured i) to apply a first drive current value to a pressure regulation valve so as to maintain an opening degree of the waste gate valve in a fully closed state in a case where an actual boost pressure is lower than a target boost pressure and a boost pressure difference between the actual boost pressure and the target boost pressure is equal to or larger than a threshold, and ii) to apply a second drive current value that is smaller than the first drive current value to the pressure regulation valve in a case where the actual boost pressure is lower than the target boost pressure and the boost pressure difference is smaller than the threshold.
    Type: Application
    Filed: April 16, 2018
    Publication date: November 15, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinsuke AOYAGI, Junichi MURASE
  • Publication number: 20180326473
    Abstract: Provided is a method of producing foamed sand (s) for forming a sand mold. The foamed sand (s) includes sand particles (p) and foam (f) adhering to surfaces of the sand particles (p). The foam (f) contains water glass (b), water (w), and a surfactant (c). According to the method, an aqueous surfactant solution (e) in which the surfactant (c) is dissolved is frothed to generate froth (d) from the aqueous surfactant solution (e). Then, the generated froth (d), the water glass (b), and the water (w) are kneaded with the sand constituted by the sand particles (p).
    Type: Application
    Filed: October 25, 2016
    Publication date: November 15, 2018
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, SINTOKOGIO, LTD.
    Inventors: Takumi MAEGAWA, Masashi MORIKAWA, Kenichiro MORI, Yusuke KATO
  • Publication number: 20180328330
    Abstract: A control device for a vehicle includes an electronic control unit. The electronic control unit is configured to: execute first automatic stop control for automatically stopping an engine when a first condition is established during traveling of the vehicle; execute second stop control for automatically stopping the engine when a second condition is established during stop of the vehicle; predict a vehicle stop duration; calculate a required cold and heat storage amount of an evaporator; calculate a reaching time until a cold and heat storage amount of the evaporator reaches the required cold and heat storage amount; predict a time needed for vehicle stop; and when the first condition is established during traveling of the vehicle, in a case where the calculated reaching time is equal to or longer than the predicted time needed for vehicle stop, automatically stop the internal combustion engine during traveling of the vehicle.
    Type: Application
    Filed: April 30, 2018
    Publication date: November 15, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Katsuya Terahata
  • Publication number: 20180326490
    Abstract: A method of producing a sintered and forged member includes a mixing process in which a manganese-containing powder made of Fe—Mn—C—Si containing manganese as a main component, an iron powder made of Fe, a copper powder made of Cu, and a graphite powder made of graphite are mixed together to prepare a mixed powder; a molding process in which the mixed powder is compression-molded into a molded product; a sintering process in which, when the molded product is heated, copper derived from the copper powder and manganese contained in the manganese-containing powder are alloyed, the alloyed copper-manganese alloy is brought into a liquid phase state, and the molded product is sintered to produce a sintered product while elements of the copper-manganese alloy diffuse into an iron base of the molded product; and a process in which the sintered product is forged.
    Type: Application
    Filed: May 9, 2018
    Publication date: November 15, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Nobuyuki SHINOHARA, Kimihiko ANDO, Toshiyuki KOSAI
  • Publication number: 20180328422
    Abstract: A control device of a vehicle power transmission device including a first power transmission path transmitting power by engaging a first clutch, a sub-clutch and a second power transmission path transmitting power by engaging a second clutch each disposed between an engine and drive wheels and parallel to each other, the device including a fail-safe valve for preventing simultaneous engagement of the first and second clutches, the fail-safe valve configured to be switched to a fail-safe spool position preventing simultaneous engagement of the first and second clutches by a hydraulic pressure of a hydraulic fluid supplied to the first clutch or an output pressure of a first electromagnetic valve controlling the hydraulic pressure and the hydraulic pressure of the hydraulic fluid supplied to the second clutch or an output pressure of a second electromagnetic valve controlling the hydraulic pressure, the second electromagnetic valve configured to increase the output pressure.
    Type: Application
    Filed: May 9, 2018
    Publication date: November 15, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke OHGATA, Hiroki KONDO, Makoto SAWADA, Shinya TOYODA, Shuji MORIYAMA, Kyohei SUZUMURA, Hiroki TAKEDA
  • Publication number: 20180327034
    Abstract: A mud guard portion is placed on a vehicle rear side relative to a rear tire. This makes it possible to restrain mud or the like splashed by the rear tire from hitting an underfloor. Further, an inside flow regulating portion is provided adjacently to an inner side of the mud guard portion in the vehicle width direction, and the inside flow regulating portion extends from its upper end toward a vehicle lower side and toward the vehicle rear side. Hereby, when a travel wind flowing on an inner side of the rear tire in the vehicle width direction in the wheel house hits the inside flow regulating portion, the travel wind flows toward the vehicle rear side along a deflection wall portion of the inside flow regulating portion. Accordingly, turbulence of the air on a vehicle rear side of the rear tire due to the travel wind is restrained.
    Type: Application
    Filed: July 26, 2018
    Publication date: November 15, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Fumihiko KISHIMA