Patents by Inventor Takahide Iida

Takahide Iida has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9434257
    Abstract: A power supply connector (410) is used to supply electric power from a hybrid vehicle (100) equipped with an engine (160) and a motor generator (130, 135) to a device outside of the vehicle (100). When the power supply connector (410) is connected to an inlet (220) of the vehicle (100), the power supply connector (410) outputs a signal for performing a power supply operation while allowing operation of the engine (160) to an ECU (300) of the vehicle (100).
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: September 6, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shigeki Kinomura, Tetsuhiro Ishikawa, Takahide Iida, Takafumi Nishimuta
  • Patent number: 9120641
    Abstract: An electric vehicle charger includes: a first winder unit and a second winder unit for winding and holding a charging cable having a charging connector at its end portion; and a body unit for arranges the first winder unit and the second winder unit with the distance between the first winder unit and the second winder unit set longer than the diameter of the charging cable, wherein the charging cable passes between the first winder unit and the second winder unit, and the charging cable is fixed before passing between the first winder unit and the second winder unit.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: September 1, 2015
    Assignees: Kabushiki Kaisha Toyota Jidoshokki, Nitto Kogyo Corporation
    Inventors: Takahide Iida, Masakatsu Sakuda, Youichi Takahashi
  • Publication number: 20140232182
    Abstract: A power supply connector (410) is used to supply electric power from a hybrid vehicle (100) equipped with an engine (160) and a motor generator (130, 135) to a device outside of the vehicle (100). When the power supply connector (410) is connected to an inlet (220) of the vehicle (100), the power supply connector (410) outputs a signal for performing a power supply operation while allowing operation of the engine (160) to an ECU (300) of the vehicle (100).
    Type: Application
    Filed: August 29, 2012
    Publication date: August 21, 2014
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shigeki Kinomura, Tetsuhiro Ishikawa, Takahide Iida, Takafumi Nishimuta
  • Patent number: 8682517
    Abstract: A vehicle starts traveling in an EV travel mode. When a reset request is issued to a first power storage unit, current control is performed to discharge actively the first power storage unit. After time when charging by an external power supply becomes allowed, a discharge current of the first power storage unit to be reset is kept at a constant current value, and a second power storage unit not to be reset is charged with a charge current including at least the discharge current of the first power storage unit. When a distinctive point appears on a battery voltage characteristic of the first power storage unit at a subsequent time, an estimated value of an SOC of the first power storage unit is reset to a predetermined reference value.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: March 25, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Takahide Iida
  • Patent number: 8659182
    Abstract: Converters are configured to operate in a normal operation to convert the electric power that is input/output to/from secondary batteries bidirectionally to direct current voltage. In a predetermined mode allowing the secondary batteries to be charged, at least one of the converters does not perform a switching operation and holds on an upper arm element to avoid a switching loss in charging the secondary batteries. An electric power loss caused at the converters in charging the secondary batteries can be reduced, and charging efficiency can be enhanced.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: February 25, 2014
    Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Shinji Ichikawa, Takahide Iida
  • Patent number: 8417403
    Abstract: A vehicle includes a battery as a power storage device that can be charged and discharged, a booster unit, an inverter, and a motor generator operating as a vehicle driving unit receiving electric power supply from the battery to drive the vehicle, a coupling unit coupling the vehicle with an external power supply for charging the battery from the outside of the vehicle, and a control device performing control related to the battery. The control device determines whether or not a destination is a charging-available place where the battery can be charged from the outside of the vehicle, and if the destination is a charging-available place, performs control related to the battery so that the temperature of the battery is a charging-efficient temperature on arrival at the destination.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: April 9, 2013
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd.
    Inventors: Takahide Iida, Masatoshi Takahara, Keisuke Kimura
  • Publication number: 20120212180
    Abstract: An electric vehicle charger includes: a first winder unit and a second winder unit for winding and holding a charging cable having a charging connector at its end portion; and a body unit for arranges the first winder unit and the second winder unit with the distance between the first winder unit and the second winder unit set longer than the diameter of the charging cable, wherein the charging cable passes between the first winder unit and the second winder unit, and the charging cable is fixed before passing between the first winder unit and the second winder unit.
    Type: Application
    Filed: February 16, 2012
    Publication date: August 23, 2012
    Applicants: NITTO KOGYO CORPORATION, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takahide Iida, Masakatsu Sakuda, Youichi Takahashi
  • Patent number: 8237398
    Abstract: An ECU executes a program including the steps of causing a battery pack to discharge when an external power supply is connected to a charger, stopping discharge of the battery pack when a state of charge of the battery pack is reduced to a reset value, and charging the battery pack after the state of charge is reduced to the reset value.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: August 7, 2012
    Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota Jidoshokki
    Inventor: Takahide Iida
  • Patent number: 8183837
    Abstract: In an electric system including a first converter and a second converter connected in parallel, an ECU executes a program including a step of selecting a charging mode for a first battery pack connected to the first converter and a charging mode for a second battery pack connected to the second converter, and a step of controlling a charger connected to the first battery pack, the first converter and the second converter to charge the first battery pack and the second battery pack in the selected charging modes.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: May 22, 2012
    Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota Jidoshokki
    Inventor: Takahide Iida
  • Patent number: 8143859
    Abstract: A power supply apparatus for a vehicle includes first and second batteries provided electrically in parallel to main loads, a boost converter provided between the first battery and the main loads, a boost converter provided between the second battery and the main loads, an auxiliary battery, a DC/DC converter, and an auxiliary load driven by power from the auxiliary battery or DC/DC converter. The controller determines charging currents or discharging currents for the batteries reflecting variations in a current flowing through the auxiliary load. Accordingly, a power supply apparatus for a vehicle can thus be provided in which imbalance between charging/discharging currents for a plurality of power storage devices is reduced.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: March 27, 2012
    Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota Jidoshokki
    Inventor: Takahide Iida
  • Publication number: 20100324765
    Abstract: A vehicle includes a battery as a power storage device that can be charged and discharged, a booster unit, an inverter, and a motor generator operating as a vehicle driving unit receiving electric power supply from the battery to drive the vehicle, a coupling unit coupling the vehicle with an external power supply for charging the battery from the outside of the vehicle, and a control device performing control related to the battery. The control device determines whether or not a destination is a charging-available place where the battery can be charged from the outside of the vehicle, and if the destination is a charging-available place, performs control related to the battery so that the temperature of the battery is a charging-efficient temperature on arrival at the destination.
    Type: Application
    Filed: August 4, 2008
    Publication date: December 23, 2010
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.
    Inventors: Takahide Iida, Masatoshi Takahara, Keisuke Kimura
  • Patent number: 7847521
    Abstract: A power supply system for a vehicle includes: batteries; motor generators operating as rotating electrical machines driven by electric power in the batteries when the vehicle is running, and constituting a first charger when the batteries are charged by electric power received from a source external to the vehicle and; an inlet receiving the electric power supplied from the external source; a second charger receiving the electric power supplied from the external source and charging the batteries; and a control device selecting one of the first and second chargers and performing control for converting the electric power supplied from the external source to the inlet into charging electric power using the selected charger. Thus, a power supply system for a vehicle that is chargeable from various power supplies at the time of charging and has reduced charge loss can be provided.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: December 7, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Takahide Iida
  • Publication number: 20100301802
    Abstract: The charging apparatus supplying power from a power source to a vehicle includes a body, a cable, a communication device, a starting switch and a controller. The controller is connected to the communication device and the starting switch for controlling the power supply from the power source to the charging connector. If the charging connector is connected to a vehicle which has no communication function for communicating with the charging apparatus, the controller controls so that a voltage is applied to the charging connector when the starting switch is operated. If the charging connector is connected to a vehicle which has communication function for communicating with the charging apparatus, the controller controls so that a voltage is applied to the charging connector in accordance with the communication between the communication device and the vehicle.
    Type: Application
    Filed: May 26, 2010
    Publication date: December 2, 2010
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Takahide Iida
  • Publication number: 20100181829
    Abstract: Converters are configured to operate in a normal operation to convert the electric power that is input/output to/from secondary batteries bidirectionally to direct current voltage. In a predetermined mode allowing the secondary batteries to be charged, at least one of the converters does not perform a switching operation and holds on an upper arm element to avoid a switching loss in charging the secondary batteries. An electric power loss caused at the converters in charging the secondary batteries can be reduced, and charging efficiency can be enhanced.
    Type: Application
    Filed: June 25, 2008
    Publication date: July 22, 2010
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Shinji Ichikawa, Takahide Iida
  • Publication number: 20100141213
    Abstract: A power supply apparatus for a vehicle includes first and second batteries provided electrically in parallel to main loads, a boost converter provided between the first battery and the main loads, a boost converter provided between the second battery and the main loads, an auxiliary battery, a DC/DC converter, and an auxiliary load driven by power from the auxiliary battery or DC/DC converter. The controller determines charging currents or discharging currents for the batteries reflecting variations in a current flowing through the auxiliary load. Accordingly, a power supply apparatus for a vehicle can thus be provided in which imbalance between charging/discharging currents for a plurality of power storage devices is reduced.
    Type: Application
    Filed: May 30, 2008
    Publication date: June 10, 2010
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takahide Iida
  • Publication number: 20100133913
    Abstract: An electric system including a first converter and a second converter connected in parallel executes a program including a step of controlling a value of a voltage of a section between the first converter and the second converter to be higher by a predetermined value than either voltage value V(1) or voltage value V(2), whichever is higher, and a step of controlling the value of the voltage of the section between the first converter and the second converter to attain to the same voltage value as either voltage value V(1) or voltage value V(2), whichever is higher.
    Type: Application
    Filed: June 10, 2008
    Publication date: June 3, 2010
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takahide Iida
  • Publication number: 20100134065
    Abstract: An ECU executes a program including the steps of causing a battery pack to discharge when an external power supply is connected to a charger, stopping discharge of the battery pack when a state of charge of the battery pack is reduced to a reset value, and charging the battery pack after the state of charge is reduced to the reset value.
    Type: Application
    Filed: June 6, 2008
    Publication date: June 3, 2010
    Applicants: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota Jidoshokki
    Inventor: Takahide Iida
  • Publication number: 20100127669
    Abstract: In an electric system including a first converter and a second converter connected in parallel, an ECU executes a program including a step of selecting a charging mode for a first battery pack connected to the first converter and a charging mode for a second battery pack connected to the second converter, and a step of controlling a charger connected to the first battery pack, the first converter and the second converter to charge the first battery pack and the second battery pack in the selected charging modes.
    Type: Application
    Filed: June 10, 2008
    Publication date: May 27, 2010
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA
    Inventor: Takahide Iida
  • Publication number: 20100131137
    Abstract: A vehicle starts traveling in an EV travel mode. When a reset request is issued to a first power storage unit, current control is performed to discharge actively the first power storage unit. After time when charging by an external power supply becomes allowed, a discharge current of the first power storage unit to be reset is kept at a constant current value, and a second power storage unit not to be reset is charged with a charge current including at least the discharge current of the first power storage unit. When a distinctive point appears on a battery voltage characteristic of the first power storage unit at a subsequent time, an estimated value of an SOC of the first power storage unit is reset to a predetermined reference value.
    Type: Application
    Filed: June 10, 2008
    Publication date: May 27, 2010
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takahide Iida
  • Patent number: D603337
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: November 3, 2009
    Assignees: Yazaki Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Hajime Katou, Tetsuhiro Ishikawa, Takahide Iida