Patents by Inventor Fumiyoshi Kuribara
Fumiyoshi Kuribara 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: 11901146Abstract: A relay drive control device is configured to control drive of a relay for connecting a battery mounted on a vehicle and an external power supply. The relay drive control device includes a controller configured to, when driving the relay, supply an output voltage of the battery to the relay after increasing the output voltage to a voltage value at which the relay is drivable.Type: GrantFiled: January 26, 2023Date of Patent: February 13, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomohiro Narematsu, Akira Umemoto, Takuya Itoh, Yasuyuki Morishita, Yu Shimizu, Fumiyoshi Kuribara, Ippei Takesue, Daiki Takayama, Tomoya Aoki, Daisuke Kamikihara
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Publication number: 20230302941Abstract: The electric vehicle comprises a power storage device, a charger that charges the power storage device using power from an external power supply, and a controller that controls the charger. The controller calculates the required charging time for charging before charging the power storage device by the charger, and calculates the scheduled charging end time using the required charging time; obtains the incomplete factor for which the charging was not completed, in case the charging of the power storage device is not completed at the scheduled charging end time; and obtains the delay factor that delayed the completion of charging, in case the charging of the power storage device is completed beyond the scheduled charging end time.Type: ApplicationFiled: March 17, 2023Publication date: September 28, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Fumiyoshi Kuribara, Masanori Koashi
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Publication number: 20230294531Abstract: The controller retains the supply power before receiving the connection signal in the disconnected state and calculates the remaining charging time, when a connection signal of the disconnection state is received by operating the connection switch while the charging device is charging the power storage device using power from the external power source with the charging device connected to the external power source via the cable device, and further when the connection between the vehicle side connector and the cable side connector is detected by the connection detection device.Type: ApplicationFiled: March 16, 2023Publication date: September 21, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Fumiyoshi Kuribara
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Publication number: 20230298837Abstract: A relay drive control device is configured to control drive of a relay for connecting a battery mounted on a vehicle and an external power supply. The relay drive control device includes a controller configured to, when driving the relay, supply an output voltage of the battery to the relay after increasing the output voltage to a voltage value at which the relay is drivable.Type: ApplicationFiled: January 26, 2023Publication date: September 21, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomohiro NAREMATSU, Akira UMEMOTO, Takuya ITOH, Yasuyuki MORISHITA, Yu SHIMIZU, Fumiyoshi KURIBARA, Ippei TAKESUE, Daiki TAKAYAMA, Tomoya AOKI, Daisuke KAMIKIHARA
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Publication number: 20230264590Abstract: The motor vehicle includes a power storage device, a charger that charges the power storage device with electric power from an external power source, and a control device that controls the charger. The control device acquires a charging start impossible factor that cannot start charging when the charging of the power storage device by the charger cannot be started.Type: ApplicationFiled: February 22, 2023Publication date: August 24, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Fumiyoshi KURIBARA, Masanori KOASHI
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Publication number: 20230249579Abstract: A vehicle includes: a first power line configured to connect an inlet and an energy storage device via a power conversion device; a second power line configured to connect the inlet and the energy storage device without via the power conversion device; a first relay configured to switch between a first electrically connected state in which the second power line is electrically connected and a first electrically disconnected state in which the second power line is electrically disconnected; and a first control device. The first control device is configured to switch the first relay to the first electrically disconnected state when a voltage that can be supplied from the external power supply is lower than a voltage range in which the energy storage device can be charged.Type: ApplicationFiled: January 24, 2023Publication date: August 10, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yutaka KUBOYAMA, Fumiyoshi KURIBARA
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Publication number: 20230166628Abstract: A vehicle includes a power reception unit receiving power from outside of the vehicle, a power storage device, and a control device performing control for charging the power storage device in accordance with a schedule set for timer charge. In the case where a charge time band of a first schedule defining a charge start time and a charge end time and a charge time band of a second schedule defining a charge start time and a charge end time overlap each other, the control device starts charge at the earlier one of the charge start time of the first schedule and the charge start time of the second schedule when the charge start times are different, and ends charge at the later one of the charge end time of the first schedule and the charge end time of the second schedule when the charge end times are different.Type: ApplicationFiled: October 11, 2022Publication date: June 1, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yu SHIMIZU, Fumiyoshi KURIBARA
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Patent number: 10994622Abstract: A vehicle comprises a motor configured to output a power for driving; a power storage device configured to supply electric power to the motor; a main relay provided between the motor and the power storage device; a power receiving connector configured to be connectable with a power feed connector of an external charger; and a charging relay connected with the power receiving connector and connected with the power storage device via the main relay. This vehicle further comprises a control device configured to determine whether electric power from the external charger is supplied to the power receiving connector during charging of the power storage device with the electric power from the external charger in closed positions of the main relay and the charging relay and to open the main relay when it is determined that the electric power from the external charger is not supplied to the power receiving connector.Type: GrantFiled: September 5, 2017Date of Patent: May 4, 2021Assignees: Toyota Jidosha Kabushiki Kaisha, Fujitsu Ten LimitedInventors: Takaharu Hori, Fumiyoshi Kuribara, Daisuke Okajima
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Patent number: 10434891Abstract: A motor vehicle is configured to include a first battery; a second battery; a first converter configured to step-down an electric power of the first power line and supply the stepped-down electric power to a second power line with which the second battery is connected; a third battery; a solar charging device configured to generate electric power using sunlight and supply the generated electric power to the third battery; and a second converter configured to transmit electric power accompanied with a change in a voltage between the second power line and a third power line with which the third battery is connected. The motor vehicle of this configuration is configured to provide permission for relief charging that is charging of the third battery using an electric power on a first power line side, when a voltage of the second battery is not lower than a predetermined voltage.Type: GrantFiled: August 8, 2017Date of Patent: October 8, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Fumiyoshi Kuribara
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Patent number: 10384547Abstract: A vehicle is equipped with a power storage device configured to transmit electric power to and from a motor for driving, and a solar power generation system configured to generate electric power using sunlight and to perform solar charging that charges the power storage device with the generated electric power. The vehicle is configured to perform external charging that charges the power storage device with electric power from an external power supply apparatus. The vehicle prohibits the solar charging until a standby time has elapsed since an off operation of an ignition switch and permits the solar charging when the standby time has elapsed.Type: GrantFiled: November 14, 2017Date of Patent: August 20, 2019Assignee: Toyota Jidosha Kabushiki KaishaInventors: Fumiyoshi Kuribara, Shigetaka Asano
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Patent number: 10183585Abstract: An automotive vehicle on which a motor for traveling, a battery configured to supply electric power to the motor, and a charging system configured to charge the battery, are installed. The automotive vehicle includes an abnormality informing unit configured to immediately inform occurrence of an abnormality regarding the charging system when the abnormality is detected, on a condition that the abnormality is a first abnormality that affects traveling, and inform occurrence of an abnormality when a next trip is started, on a condition that the abnormality is a second abnormality that does not affect traveling.Type: GrantFiled: July 13, 2017Date of Patent: January 22, 2019Assignees: Toyota Jidosha Kabushiki Kaisha, Fujitsu Ten LimitedInventors: Yusuke Furuhashi, Fumiyoshi Kuribara, Daisuke Okajima
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Patent number: 10099571Abstract: In a low power charging mode, when a predetermined time has elapsed from the start of external charging, the external charging ends. With this, it is possible to suppress excessive extension of a power feeding time from an external power supply, and to secure a charging amount of a high voltage battery at least to some extent.Type: GrantFiled: March 20, 2017Date of Patent: October 16, 2018Assignee: Toyota Jidosha Kabushiki KaishaInventors: Fumiyoshi Kuribara, Shigetaka Asano
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Patent number: 10017059Abstract: A vehicle includes a motor, a high voltage battery, a charger; an accessory; a first DC/DC converter, a second DC/DC converter, and an electronic control unit configured to: end the external charging, when a power storage ratio of the high voltage battery reaches a target ratio or when charged electric power of the high voltage battery becomes equal to or less than predetermined electric power before the power storage ratio of the high voltage battery reaches the target ratio, while external charging for charging the high voltage battery with the charger using electric power from the external power supply is being performed; and limit a drive of the accessory compared to when the electric power from the external power supply is greater than the predetermined electric power, when the electric power from the external power supply is equal to or less than predetermined electric power.Type: GrantFiled: March 17, 2017Date of Patent: July 10, 2018Assignee: Toyota Jidosha Kabushiki KaishaInventors: Fumiyoshi Kuribara, Shigetaka Asano
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Publication number: 20180134163Abstract: A vehicle is equipped with a power storage device configured to transmit electric power to and from a motor for driving, and a solar power generation system configured to generate electric power using sunlight and to perform solar charging that charges the power storage device with the generated electric power. The vehicle is configured to perform external charging that charges the power storage device with electric power from an external power supply apparatus. The vehicle prohibits the solar charging until a standby time has elapsed since an off operation of an ignition switch and permits the solar charging when the standby time has elapsed.Type: ApplicationFiled: November 14, 2017Publication date: May 17, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Fumiyoshi KURIBARA, Shigetaka ASANO
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Publication number: 20180105042Abstract: A first control device connected with a second power line and configured to control a drive system is configured to send a start prohibition signal of the first control device to a second control device connected with the second power line and configured to control a solar power generation system, upon satisfaction of a prohibition condition including a condition that an abnormality occurs in the drive system. When the second control device receives the start prohibition signal from the first control device, the second control device is configured not to send a start instruction signal for charging to the first control device in spite of a request for solar charging provided to supply electric power from the solar power generation system to a first electrical storage device at a system-off time.Type: ApplicationFiled: October 2, 2017Publication date: April 19, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Fumiyoshi KURIBARA
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Publication number: 20180065487Abstract: A vehicle comprises a motor configured to output a power for driving; a power storage device configured to supply electric power to the motor; a main relay provided between the motor and the power storage device; a power receiving connector configured to be connectable with a power feed connector of an external charger; and a charging relay connected with the power receiving connector and connected with the power storage device via the main relay. This vehicle further comprises a control device configured to determine whether electric power from the external charger is supplied to the power receiving connector during charging of the power storage device with the electric power from the external charger in closed positions of the main relay and the charging relay and to open the main relay when it is determined that the electric power from the external charger is not supplied to the power receiving connector.Type: ApplicationFiled: September 5, 2017Publication date: March 8, 2018Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, FUJITSU TEN LIMITEDInventors: Takaharu HORI, Fumiyoshi KURIBARA, Daisuke OKAJIMA
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Publication number: 20180043788Abstract: A motor vehicle is configured to include a first battery; a second battery; a first converter configured to step-down an electric power of the first power line and supply the stepped-down electric power to a second power line with which the second battery is connected; a third battery; a solar charging device configured to generate electric power using sunlight and supply the generated electric power to the third battery; and a second converter configured to transmit electric power accompanied with a change in a voltage between the second power line and a third power line with which the third battery is connected. The motor vehicle of this configuration is configured to provide permission for relief charging that is charging of the third battery using an electric power on a first power line side, when a voltage of the second battery is not lower than a predetermined voltage.Type: ApplicationFiled: August 8, 2017Publication date: February 15, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Fumiyoshi KURIBARA
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Publication number: 20180037123Abstract: An automotive vehicle on which a motor for traveling, a battery configured to supply electric power to the motor, and a charging system configured to charge the battery, are installed. The automotive vehicle includes an abnormality informing unit configured to immediately inform occurrence of an abnormality regarding the charging system when the abnormality is detected, on a condition that the abnormality is a first abnormality that affects traveling, and inform occurrence of an abnormality when a next trip is started, on a condition that the abnormality is a second abnormality that does not affect traveling.Type: ApplicationFiled: July 13, 2017Publication date: February 8, 2018Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, FUJITSU TEN LIMITEDInventors: Yusuke FURUHASHI, Fumiyoshi KURIBARA, Daisuke OKAJIMA
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Patent number: 9878625Abstract: A vehicle includes a high voltage battery, a charger and an ECU. When electric power from an external power supply is equal to or less than first predetermined electric power and first power feeding control to feed electric power to a low voltage system power line is performed, the ECU is configured to control the charger to: continue the drive of the charger when a first predetermined time has not elapsed from a start of the first power feeding control or when charged electric power of the high voltage battery is greater than second predetermined electric power that is smaller than the first predetermined electric power after the first predetermined time has elapsed; and stop the drive of the charger when the charged electric power of the high voltage battery is equal to or less than the second predetermined electric power after the first predetermined time has elapsed.Type: GrantFiled: March 17, 2017Date of Patent: January 30, 2018Assignee: Toyota Jidosha Kabushiki KaishaInventors: Fumiyoshi Kuribara, Shigetaka Asano
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Patent number: 9827860Abstract: A vehicle includes a high voltage battery, a charger and an ECU. When electric power from an external power supply is equal to or less than first predetermined electric power and first power feeding control to feed electric power to a low voltage system power line is performed, the ECU is configured to control the charger to: continue the drive of the charger when a first predetermined time has not elapsed from a start of the first power feeding control or when charged electric power of the high voltage battery is greater than second predetermined electric power that is smaller than the first predetermined electric power after the first predetermined time has elapsed; and stop the drive of the charger when the charged electric power of the high voltage battery is equal to or less than the second predetermined electric power after the first predetermined time has elapsed.Type: GrantFiled: March 17, 2017Date of Patent: November 28, 2017Assignee: Toyota Jidosha Kabushiki KaishaInventors: Fumiyoshi Kuribara, Shigetaka Asano