Patents Assigned to Toyota Jidosha Kabushiki Kaisha
  • Patent number: 10181750
    Abstract: When a microcomputer does not charge an electric storage device, the microcomputer activates at an interval set based on a timer set value and determines whether an electric power voltage generated by a solar cell is equal to or higher than an electric power generation determination threshold. When the generated electric power voltage is lower than the electric power generation determination threshold, the microcomputer turns to a sleep state after increasing the timer set value by an addition set value while prohibiting charging the electric storage device. When the generated electric power voltage is equal to or higher than the electric power generation determination threshold and a generated electric power amount is equal to or larger than an electric power generation determination threshold, the microcomputer starts charging the electric storage device so the electric power device can be appropriately charged with an electric power generated by the solar cell.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: January 15, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO TEN LIMITED
    Inventors: Seigen Maeno, Takuya Hibino, Yohsuke Ochi
  • Patent number: 10181808
    Abstract: When an electrical primary frequency of power fluctuation of a motor is smaller than a determination threshold value fth1 that is a lower limit frequency of a frequency band where resonance occurs in a circuit including a reactor and a capacitor of a boosting converter or greater than a determination threshold value that is an upper limit frequency of the frequency band where resonance occurs, a value G2 is set as a gain G and when the electrical primary frequency is equal to or greater than the determination threshold value fth1 and equal to or smaller than the determination threshold value, a value G3 at which the upper limit frequency of the resonant frequency band has a low frequency than the determination threshold value fth1 is set as the gain G, and a current control in the boosting converter is executed using the gain G set in this way. The resonance of the circuit including the reactor and the capacitor of the boosting converter can be prevented.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: January 15, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kojiro Asakawa, Kazuhito Hayashi, Daigo Nobe
  • Patent number: 10180094
    Abstract: An internal combustion engine, wherein a chemical thermal storage device is provided with a first heater including a first element generating heat when chemically adsorbing a reaction medium supplied from a storage part through a first connection pipe and desorbing the reaction medium if heated by the heat of exhaust in a state chemically adsorbing the reaction medium and a second heater including a second element generating heat when chemically adsorbing a reaction medium supplied from a storage part through a second connection pipe and desorbing the reaction medium if heated by the heat of exhaust in a state chemically adsorbing the reaction medium and wherein the control device controls the opening degrees of the first valve and the second valve so that the reaction medium supplied to the second heater is preferentially recovered at the storage part.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: January 15, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroyoshi Ueda
  • Patent number: 10179581
    Abstract: In a hybrid vehicle configured such that a sun gear, a carrier and a ring gear of a planetary gear are respectively connected with a rotating shaft of a motor MG1, a crankshaft of an engine and a driveshaft and that a motor MG2 is connected with the driveshaft, when a required braking force that is to be output to the driveshaft is equal to or less than a reference value Tref in an accelerator-off state, the braking force by engine braking is output to the driveshaft by motoring of the engine by the motor MG1. When the required braking force becomes greater than the reference value Tref, on the other hand, the power output from the engine by load operation of the engine in a reverse rotating direction is output as the braking force to the driveshaft.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: January 15, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroyuki Azuma, Tatsuki Saitoh
  • Patent number: 10179602
    Abstract: When a steering intervention of the driver is performed during automated steering control, a driver assistance system for a vehicle determines a P control amount based on a non-linear characteristics and calculates an I control amount using a coefficient according to a characteristics (solid line). In an angle difference range R1, the P control amount based on the non-linear characteristics is determined such that the amount of increase of absolute value of the P control amount with respect to the amount of increase of absolute value of the angle difference becomes smaller as compared to a linear characteristics. The coefficient with the characteristics (solid line) indicates 1 in the angle difference range R1, and approaches zero when the absolute value of the angle difference is greater in an angle difference range R2. To calculate the I control amount, the coefficient is multiplied by the current value of the angle difference.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: January 15, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshio Kudo, Yoji Kunihiro, Ryo Irie, Satoru Yabe
  • Patent number: 10180183
    Abstract: In an automatic transmission including a deceleration planetary gear and a hydraulic clutch, the hydraulic clutch includes a clutch drum, a clutch hub, first and second friction engagement plates, a piston, and an engagement oil chamber defining member. The clutch hub is formed by a ring gear and a support member that rotates together with the ring gear. The piston is movably supported by the clutch hub. The piston and the support member define a cancel oil chamber that cancels a centrifugal oil pressure generated in an engagement oil chamber.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: January 15, 2019
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takeshi Torii, Akira Miyazaki, Masashi Ikemura, Shinji Oita, Masaru Morise
  • Patent number: 10181749
    Abstract: A charging system that includes a charging device and a secondary battery device with improved safety is provided. When the secondary battery device has been connected to a charging terminal of the charging device, a DC voltage for inspection is supplied from a DC power supply unit to the charging terminal to detect a DC signal by a DC signal detection unit, and an AC voltage for inspection is supplied from an AC power supply unit to the charging terminal to detect an AC signal by an AC signal detection unit. The secondary battery device is started to be charged only when the value of the DC signal falls within a reference range defined by a resistance value of the secondary battery device and the value of the AC signal falls within a reference range defined by an impedance value of the secondary battery device.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: January 15, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki Izu, Yu Sasaki, Yoshihiro Okumatsu, Takahiro Nakayama
  • Patent number: 10181622
    Abstract: A proposed cell system 100 has a simple second cell unit 20 (for instance, a unit cell (second cell 21)) electrically connected in series to a first cell unit 10 (battery pack) that constitutes a main power source. The state of charge (SOC) of the first cell unit 10 is detected on the basis of a mixed voltage (V3) of first cells 11 included in the first cell unit 10 and the second cell 21.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: January 15, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takuichi Arai
  • Patent number: 10179520
    Abstract: A fuel cell vehicle comprises a fuel cell module, a vehicle body frame, a plurality of mounting portions and a tank. A front portion of the vehicle body frame that a front side mounting portion is attached to is configured to be movable upward in a vehicle height direction when a load is applied in the vehicle longitudinal direction. A rear side mounting portion configured to mount a rear side of the fuel cell module in the vehicle longitudinal direction to the vehicle body frame is configured to be more easily breakable, compared with the front side mounting portion, when the load is applied in the vehicle longitudinal direction.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: January 15, 2019
    Assignees: Toyota Jidosha Kabushiki Kaisha, Taiho Kogyo Co., Ltd.
    Inventors: Shigetaka Yoshikawa, Hiroaki Nishiumi, Tatsuya Tokumasu
  • Patent number: 10179516
    Abstract: A control device that controls a charging apparatus and a power supplying apparatus stops charging to a secondary battery when a connecting terminal is connected to each of both of a charging terminal and a discharging terminal. Also, the control device continues to stop the charging when the charging-stopped state is detected by the cut-off detecting portion.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: January 15, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Takayuki Ogawa
  • Patent number: 10180098
    Abstract: A control device of an exhaust sensor comprises a battery voltage detection part detecting a voltage of a battery, and a heater control part setting a target temperature of an electrochemical cell and controlling the electric power supplied from the battery to a heater. The heater control part sets the target temperature to a first temperature after startup of the internal combustion engine until the voltage of the battery recovers to a predetermined voltage, and switches the target temperature from the first temperature to a second temperature when the voltage of the battery recovers to the predetermined voltage. The first temperature is a temperature lower than an operating temperature of the electrochemical cell and at least a lowest temperature at which a Leidenfrost phenomenon occurs at the protective layer. The second temperature is a temperature of the operating temperature or more.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: January 15, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiichiro Aoki, Koji Ide, Go Hayashita
  • Patent number: 10179514
    Abstract: In a case where an external charging start time is set in an external charging timer when a charging plug is connected to a charging connector, a charging controller is configured to perform standby setting of external charging before the external charging start time and transits to a pause state. The charging controller is intermittently activated during a timer charging setting period from a pause period start time when transition is made to the pause state to the external charging start time, and when a battery temperature at the time of activation of the charging controller is equal to or lower than a predetermined temperature, execute a temperature increase mode in which a heater is operated to increase the temperature of a main battery.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: January 15, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Murata, Yusuke Kuruma
  • Patent number: 10180184
    Abstract: A detecting device includes a shift selector, a magnet disposed in the shift selector, four or more sensors arranged at positions facing the magnet and an ECU. The ECU is configured to (i) determine a shift position based on signals output from the four or more sensors when the magnet is relatively displaced with respect to the four or more sensors in response to an operation of the shift selector, (ii) determine the shift position based on signals output from three or more of the four or more sensors determined to be normal when any one of the four or more sensors is abnormal, and (iii) determine the abnormality based on whether or not the three or more sensors output, during the traveling of the vehicle, a signal to a shift position pertaining to a case of traveling in the direction opposite to a traveling direction of the vehicle.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: January 15, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takahiko Tsutsumi, Masato Tateno, Koki Ueno, Hiroshi Shibata
  • Patent number: 10180112
    Abstract: An abnormality diagnosis system of an air-fuel ratio sensor 40 or 41 provided in an exhaust passage of an internal combustion engine and generating a limit current corresponding to an air-fuel ratio, comprises a current detecting part 61 detecting an output current of the air-fuel ratio sensor and an applied voltage control device 60 controlling a voltage applied to the air-fuel ratio sensor. The abnormality diagnosis system applies a voltage inside a limit current region where a limit current is generated and a voltage outside the limit current region to the air-fuel ratio sensor when the air-fuel ratio of the exhaust gas circulating around the air-fuel ratio sensor is made a predetermined constant air-fuel ratio, and judges a type of abnormality occurring at the air-fuel ratio sensor based on an output current of the air-fuel ratio sensor detected by the current detecting part at this time.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: January 15, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Go Hayashita, Hidenori Moriya
  • Patent number: 10180100
    Abstract: A cooling system 100 includes an electric oil pump 18, an outside air temperature sensor 22, an oil temperature sensor 21, and a controller 30. The controller 30 permits the actuation of the electric oil pump 18 in one of a first case where an oil temperature To is equal to or greater than a first threshold (A) and where an outside air temperature Ta is equal to or greater than a second threshold (B), a second case where the outside air temperature Ta is less than the second threshold (B) and where the oil temperature To is equal to or greater than a third threshold (C) higher than the first threshold (A), and a third case where the oil temperature To is less than the first threshold (A) and where the outside air temperature Ta is equal to or greater than a fourth threshold (D) higher than the second threshold (B).
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: January 15, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Shinjiro Suzuki
  • Patent number: 10180669
    Abstract: The present invention relates to a control device design method for a control device that determines a manipulation amount of a control object having a dead time by feedback control so as to bring a control amount of the control object closer to a target value. The method according to the present invention includes a step of designing a feedback loop that computes a correction amount for the manipulation amount using a plurality of controllers including a prediction model of the control object, a step of deriving the same number of delay elements as the plurality of controllers from a dead time element of the prediction model, and a step of allocating the plurality of controllers associated with the delay elements to a plurality of arithmetic units so that the computation of the feedback loop is performed by parallel computation by the plurality of arithmetic units that operate in parallel.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: January 15, 2019
    Assignees: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kota Sata, Junichi Kako, Satoru Watanabe, Yuta Suzuki, Masato Edahiro
  • Patent number: 10180095
    Abstract: A NOx catalyst is provided that can realize a favorable NOx reduction in a broad temperature region and that can lighten the overhead involved in production.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: January 15, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroshi Otsuki, Hiromasa Nishioka, Yoshihisa Tsukamoto, Yasumasa Notake
  • Patent number: 10180122
    Abstract: A fuel pump includes a plunger that reciprocates inside a cylinder. The fuel pump includes a first movable element connected to the plunger, a second movable element that functions as a counterweight for preventing or reducing vibrations that are created by reciprocation of the first movable element, an electromagnet provided between the first movable element and the second movable element, a magnetic member that is provided between the first movable element and the second movable element and that attracts both the first movable element and the second movable element when the electromagnet is energized, and a first spring that urges the first movable element and the second movable element so as to move away from each other.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: January 15, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Kazuhiro Asayama
  • Patent number: 10181588
    Abstract: A battery is provided with a lid member that closes a case, a collector terminal member having an insert-through part, an insulator that electrically insulates the lid member and the collector terminal member, and a gasket that provides a seal between the lid member and the collector terminal member. The lid member has a protrusion protruding downward in the vertical direction from the bottom. A gasket is in the same position as the protruding section in an inside-outside direction, which is perpendicular to the vertical direction, and has a sealing part pressed by the protruding section. At least one gap exists in the vicinity of the seal section in a different position to the seal section in the inside-outside direction, and at least portions of the gaps are enclosed by the gasket and the collector terminal member.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: January 15, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Harayama, Kazuyuki Kusama
  • Patent number: 10180109
    Abstract: An internal combustion engine 100 comprises an air-fuel ratio control device. The air-fuel ratio control device controls the amount of fuel fed to the combustion chamber by feedback control so that the air-fuel ratio detected by the upstream side air-fuel ratio sensor matches the target air-fuel ratio when a blow-through amount of air blown from the intake passage through a cylinder to the exhaust passage due to an occurrence of valve overlap is a reference blow-through amount or less. The air-fuel ratio control device sets the target air-fuel ratio of the inflowing exhaust gas based on the air-fuel ratio detected by the downstream side air-fuel ratio sensor and, without performing the feedback control, feeds the amount of fuel calculated from the target air-fuel ratio to the combustion chamber when the blow-through amount is greater than the reference blow-through amount.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: January 15, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuya Okubo, Norihisa Nakagawa, Koichi Kimura