Patents by Inventor Hidetoshi Kusumi
Hidetoshi Kusumi 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: 11312254Abstract: The evaluation jig comprises a pair of female terminals connectable to a pair of male terminals of a charging connector and an adjustment member capable of adjusting contact resistance of the female terminal and the male terminal. The female terminal is reducible in diameter. The adjustment member includes an annular band attached to an outer peripheral surface of the female terminal and formed in an annulus surrounding the female terminal, a metal band attached to an outer peripheral surface of the annular band and capable of applying external force to the female terminal to reduce the female terminal in diameter, and an adjustment unit capable of adjusting the external force applied by the metal band to the female terminal. The annular band is made of an electrically and thermally insulating material.Type: GrantFiled: December 9, 2020Date of Patent: April 26, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hidetoshi Kusumi, Hisato Kawahara, Hiroaki Yuasa
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Patent number: 11223215Abstract: A charging apparatus includes a plurality of batteries, a changeover relay that can be changed over between a first state where the plurality of the batteries are connected in series to one another and a second state where the plurality of the batteries are connected in parallel to one another, an electric storage device, a main relay that is provided between the electric storage device and an electric load of a vehicle, and a control device that controls the opening/closing of the changeover relay. The control device renders the changeover relay in the first state when the main relay is in an open state.Type: GrantFiled: December 13, 2018Date of Patent: January 11, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshihiko Hiroe, Tomoya Ono, Hidetoshi Kusumi
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Patent number: 11218012Abstract: An ECU performs processing including the steps of: obtaining a battery temperature TB when a battery is being charged; setting a first target value of the charging current; obtaining an SOC; setting a second target value of the charging current; setting a determined target value and performing current control according to a lower one of the first target value and the second target value.Type: GrantFiled: October 21, 2019Date of Patent: January 4, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hidetoshi Kusumi
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Publication number: 20210252993Abstract: The server executes a process that includes receiving predetermined information from each terminal in a facility, if it is determined that the electric vehicle is connected to a charging/discharging station, associating a user or a user terminal with the charging/discharging station, scheduling a power demand and supply adjustment, receiving behavior information of the user, if it is determined that it is necessary to reschedule the power demand and supply adjustment, predicting a connection period, rescheduling the power demand and supply adjustment, and if the current time has reached the start time of a power supply and supply adjustment period, executing the power demand and supply adjustment.Type: ApplicationFiled: February 8, 2021Publication date: August 19, 2021Inventors: Shigeki Kinomura, Hironobu Kitaoka, Toru Nakamura, Hidetoshi Kusumi, Yoshiyuki Tsuchiya
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Publication number: 20210242683Abstract: When a baseline is in a certain state, a server executes a process including: a step of calculating an amount of power exchanged between a battery and a power grid during the first charging control; a step of calculating an amount of power exchanged between the battery and the power grid during the second charging control; a step of calculating an amount of power exchanged between the battery and the power grid during the first power feeding control; a step of calculating an amount of power exchanged between the battery and the power grid during the second power feeding control; and a step of setting a calibration line for the amount of power.Type: ApplicationFiled: February 2, 2021Publication date: August 5, 2021Inventors: Shigeki Kinomura, Hironobu Kitaoka, Toru Nakamura, Hidetoshi Kusumi, Yoshiyuki Tsuchiya
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Patent number: 11081895Abstract: A charging apparatus includes a plurality of batteries, a changeover relay that can be changed over between a first state where the plurality of the batteries are connected in series to one another and a second state where the plurality of the batteries are connected in parallel to one another, an electric storage device, a main relay that is provided between the electric storage device and an electric load of a vehicle, and a control device that controls the opening/closing of the changeover relay. The control device renders the changeover relay in the first state when the main relay is in an open state.Type: GrantFiled: December 13, 2018Date of Patent: August 3, 2021Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yoshihiko Hiroe, Tomoya Ono, Hidetoshi Kusumi
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Publication number: 20210213845Abstract: An evaluation jig comprises a female terminal connectable to a male terminal of a charging connector. The female terminal includes a plurality of contact pieces and a support portion. Each contact piece has a flexible piece, and a contact portion protruding toward the center axis from an inner surface of the flexible piece. The flexible piece forms a portion of a cylinder having the center axis. The flexible piece has a length equal to or larger than twice an outer diameter of the cylinder in a direction parallel to the center axis. The flexible piece is elastically deformable so that the flexible piece has a distal end portion to be displaceable in a radial direction of the cylinder relative to a proximal end portion of the flexible piece. The contact portion has a shape curved so as to protrude inward in the radial direction.Type: ApplicationFiled: December 10, 2020Publication date: July 15, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hisato KAWAHARA, Hiroaki YUASA, Hidetoshi KUSUMI, Kyoko INAYOSHI
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Publication number: 20210218255Abstract: The evaluation jig includes a pair of female terminals connectable to a pair of male terminals of a charging connector and an electric wire that connects the paired female terminals to each other. The electric wire has a cross-sectional area of 70 mm2 or more and 95 mm2 or less. The electric wire has a length of 2 m or more.Type: ApplicationFiled: December 9, 2020Publication date: July 15, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hidetoshi KUSUMI, Hisato KAWAHARA, Hiroaki YUASA
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Publication number: 20210215627Abstract: An evaluation method is for evaluating a charging connector in coolability by connecting an evaluation jig to the charging connector, the charging connector including a pair of male terminals and a bottom wall, the evaluation jig including a pair of female terminals, the pair of female terminals being connected to the pair of male terminals in evaluating the charging connector in coolability. The method comprises: connecting the pair of female terminals to the pair of male terminals; and adjusting a connection state of the terminals so that contact resistance between the terminals falls within a prescribed range. In the step of adjusting, a resistance between a point of 4.5 mm of the male terminal from a surface of the bottom wall and a point of 43 mm of the female terminal from the surface of the bottom wall is measured as the contact resistance.Type: ApplicationFiled: December 10, 2020Publication date: July 15, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hisato KAWAHARA, Hiroaki YUASA, Hidetoshi KUSUMI
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Publication number: 20210213841Abstract: The evaluation jig comprises a pair of female terminals connectable to a pair of male terminals of a charging connector and an adjustment member capable of adjusting contact resistance of the female terminal and the male terminal. The female terminal is reducible in diameter. The adjustment member includes an annular band attached to an outer peripheral surface of the female terminal and formed in an annulus surrounding the female terminal, a metal band attached to an outer peripheral surface of the annular band and capable of applying external force to the female terminal to reduce the female terminal in diameter, and an adjustment unit capable of adjusting the external force applied by the metal band to the female terminal. The annular band is made of an electrically and thermally insulating material.Type: ApplicationFiled: December 9, 2020Publication date: July 15, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hidetoshi KUSUMI, Hisato KAWAHARA, Hiroaki YUASA
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Publication number: 20210218173Abstract: An evaluation jig comprises a pair of female terminals connectable to a pair of male terminals of a charging connector, and an adjustment member that can adjust contact resistance of the female terminal and the male terminal. The female terminal is reducible in diameter. The adjustment member can apply an external force to the female terminal to reduce the female terminal in diameter.Type: ApplicationFiled: December 10, 2020Publication date: July 15, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hisato KAWAHARA, Hiroaki YUASA, Hidetoshi KUSUMI
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Publication number: 20210215739Abstract: An evaluation method is a method for evaluating a charging connector in coolability by connecting an evaluation jig to the charging connector, the charging connector including a pair of male terminals coolable with a coolant, the evaluation jig including a pair of female terminals, the pair of female terminals being connected to the pair of male terminals in evaluating the charging connector in coolability. The method comprises: connecting the pair of female terminals to the pair of male terminals; adjusting a connection state between the male terminal and the female terminal such that contact resistance between the terminals is 0.06 m? or more and 0.15 m? or less; and after the adjusting, evaluating the coolability depending on whether the male and female terminals have a temperature of 90° C. or lower when a charging current of 400 A is supplied to the terminals for 30 minutes.Type: ApplicationFiled: December 9, 2020Publication date: July 15, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hisato KAWAHARA, Hiroaki YUASA, Hidetoshi KUSUMI
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Patent number: 11043830Abstract: An electric power control device for a vehicle which is configured to receive direct current which is supplied from a charging device outside the vehicle and includes an electric storage device configured to be charged by the direct current includes an electronic control unit configured to: acquire maximum output information of the charging device; while the electric storage device is charged by the direct current supplied from the charging device, execute a current limiting process in which the direct current becomes lower than a predetermined value when a parameter relevant to a temperature of a current-carrying component and a threshold of the parameter satisfy a predetermined condition, the current-carrying component being a component in which the direct current flows through; and set the threshold based on the maximum output information of the charging device.Type: GrantFiled: February 12, 2019Date of Patent: June 22, 2021Assignee: Toyota Jidosha Kabushiki KaishaInventor: Hidetoshi Kusumi
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Publication number: 20210170903Abstract: A power management system includes a plurality of power storages and a server. The server includes a selector that selects at least one of the plurality of power storages, a scheduler that makes a schedule for the selected power storage, and a request processor that requests a user of the selected power storage to control at least one of external charging and external power feed in accordance with the made schedule. The server obtains desire information that indicates a desire level (priority on battery life/priority on an incentive) and carries out at least one of selection of the power storage and making of the schedule based on the obtained desire information.Type: ApplicationFiled: December 3, 2020Publication date: June 10, 2021Inventors: Yoshiyuki Tsuchiya, Toru Nakamura, Shigeki Kinomura, Hidetoshi Kusumi, Hironobu Kitaoka
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Patent number: 11021067Abstract: An electrically powered vehicle includes electric power lines through which electric power supplied from external charger flows, an electric power storage device electrically connected to the electric power lines, a charging circuit electrically connected to the electric power lines, and an electronic control unit. The electric power storage device is configured to be charged with the electric power from the external charger. The charging circuit is configured to charge the electric power storage device in either a first state or a second state. The electronic control unit is configured to acquire charger information indicating information related to electric power to be suppliable from the external charger, generate the command by using the acquired charger information, and output the command to the charging circuit.Type: GrantFiled: August 1, 2018Date of Patent: June 1, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hidetoshi Kusumi, Yoshihiko Hiroe, Tomoya Ono
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Publication number: 20210107373Abstract: A power feed system includes a power feed controller that controls a plurality of vehicles including a first vehicle and a second vehicle to successively carry out external power feed in a relayed manner. In passing on external power feed in the relayed manner from the first vehicle to the second vehicle, the power feed controller controls the first vehicle and the second vehicle to make transition from external power feed by the first vehicle to external power feed by the second vehicle with an overlapping period being interposed. During the overlapping period, both of the first vehicle and the second vehicle simultaneously carry out external power feed. The power feed controller controls at least one of the first vehicle and the second vehicle to set total electric power to target electric power during the overlapping period.Type: ApplicationFiled: October 13, 2020Publication date: April 15, 2021Inventors: Toru Nakamura, Hidetoshi Kusumi, Shigeki Kinomura, Yoshiyuki Tsuchiya, Hironobu Kitaoka
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Patent number: 10967753Abstract: A vehicle includes: an inlet configured to allow a connector of a charging cable to be inserted into the inlet; a battery configured to be charged from a charger through the connector and the inlet; a communication device configured to perform communication with a server; and an ECU configured to control charging. The ECU diagnoses whether there is an abnormality in the charger, when where the charger and the vehicle are connected to each other through the charging cable, the abnormality being able to be diagnosed in a state where the connector has been inserted into the inlet, and sends information indicating an abnormality occurrence, to the server through the communication device, when where the ECU diagnoses the charger as having the abnormality.Type: GrantFiled: January 22, 2019Date of Patent: April 6, 2021Assignee: Toyota Jidosha Kabushiki KaishaInventor: Hidetoshi Kusumi
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Publication number: 20210053459Abstract: An electric power system includes a first vehicle, a second vehicle, and an external power supply. The first vehicle starts external charging of a first power storage with electric power supplied from the external power supply while the first vehicle is electrically connected to the external power supply. When the second vehicle receives a signal that predicts end of external charging of the first power storage while the second vehicle is electrically connected to the external power supply, the second vehicle starts external charging of a second power storage with electric power supplied from the external power supply before end of external charging started in the first vehicle.Type: ApplicationFiled: August 20, 2020Publication date: February 25, 2021Inventors: Yoshiyuki Tsuchiya, Toru Nakamura, Shigeki Kinomura, Hidetoshi Kusumi, Hironobu Kitaoka
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Publication number: 20200290512Abstract: An ECU of a vehicle monitors a charging state when charging is started. When a charging power supplied from a multi-outlet charger has changed without detecting and receiving an abnormality, the ECU causes a notification device to notify the changed charging power and a charging time based on the changed charging power. The ECU notifies a communication terminal which is owned by a user of the changed charging power and the charging time based on the changed charging power.Type: ApplicationFiled: May 29, 2020Publication date: September 17, 2020Applicant: Toyota Jidosha Kabushiki KaishaInventor: Hidetoshi Kusumi
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Patent number: 10703269Abstract: An ECU of a vehicle monitors a charging state when charging is started. When a charging power supplied from a multi-outlet charger has changed without detecting and receiving an abnormality, the ECU causes a notification device to notify the changed charging power and a charging time based on the changed charging power. The ECU notifies a communication terminal which is owned by a user of the changed charging power and the charging time based on the changed charging power.Type: GrantFiled: February 20, 2019Date of Patent: July 7, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventor: Hidetoshi Kusumi