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).
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Patent number: 9434257Abstract: 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: GrantFiled: August 29, 2012Date of Patent: September 6, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shigeki Kinomura, Tetsuhiro Ishikawa, Takahide Iida, Takafumi Nishimuta
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Patent number: 9120641Abstract: 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: GrantFiled: February 16, 2012Date of Patent: September 1, 2015Assignees: Kabushiki Kaisha Toyota Jidoshokki, Nitto Kogyo CorporationInventors: Takahide Iida, Masakatsu Sakuda, Youichi Takahashi
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Publication number: 20140232182Abstract: 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: ApplicationFiled: August 29, 2012Publication date: August 21, 2014Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shigeki Kinomura, Tetsuhiro Ishikawa, Takahide Iida, Takafumi Nishimuta
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Patent number: 8682517Abstract: 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: GrantFiled: June 10, 2008Date of Patent: March 25, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Takahide Iida
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Patent number: 8659182Abstract: 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: GrantFiled: June 25, 2008Date of Patent: February 25, 2014Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota JidoshokkiInventors: Shinji Ichikawa, Takahide Iida
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Patent number: 8417403Abstract: 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: GrantFiled: August 4, 2008Date of Patent: April 9, 2013Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd.Inventors: Takahide Iida, Masatoshi Takahara, Keisuke Kimura
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Publication number: 20120212180Abstract: 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: ApplicationFiled: February 16, 2012Publication date: August 23, 2012Applicants: NITTO KOGYO CORPORATION, KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Takahide Iida, Masakatsu Sakuda, Youichi Takahashi
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Patent number: 8237398Abstract: 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: GrantFiled: June 6, 2008Date of Patent: August 7, 2012Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota JidoshokkiInventor: Takahide Iida
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Patent number: 8183837Abstract: 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: GrantFiled: June 10, 2008Date of Patent: May 22, 2012Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota JidoshokkiInventor: Takahide Iida
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Patent number: 8143859Abstract: 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: GrantFiled: May 30, 2008Date of Patent: March 27, 2012Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota JidoshokkiInventor: Takahide Iida
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Publication number: 20100324765Abstract: 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: ApplicationFiled: August 4, 2008Publication date: December 23, 2010Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.Inventors: Takahide Iida, Masatoshi Takahara, Keisuke Kimura
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Patent number: 7847521Abstract: 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: GrantFiled: October 28, 2008Date of Patent: December 7, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventor: Takahide Iida
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Publication number: 20100301802Abstract: 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: ApplicationFiled: May 26, 2010Publication date: December 2, 2010Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Takahide Iida
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Publication number: 20100181829Abstract: 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: ApplicationFiled: June 25, 2008Publication date: July 22, 2010Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Shinji Ichikawa, Takahide Iida
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Publication number: 20100141213Abstract: 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: ApplicationFiled: May 30, 2008Publication date: June 10, 2010Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takahide Iida
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Publication number: 20100133913Abstract: 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: ApplicationFiled: June 10, 2008Publication date: June 3, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takahide Iida
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Publication number: 20100134065Abstract: 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: ApplicationFiled: June 6, 2008Publication date: June 3, 2010Applicants: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota JidoshokkiInventor: Takahide Iida
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Publication number: 20100127669Abstract: 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: ApplicationFiled: June 10, 2008Publication date: May 27, 2010Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTAInventor: Takahide Iida
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Publication number: 20100131137Abstract: 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: ApplicationFiled: June 10, 2008Publication date: May 27, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takahide Iida
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Patent number: D603337Type: GrantFiled: April 22, 2008Date of Patent: November 3, 2009Assignees: Yazaki Corporation, Toyota Jidosha Kabushiki KaishaInventors: Hajime Katou, Tetsuhiro Ishikawa, Takahide Iida