Patents by Inventor Shota KAWANAKA
Shota KAWANAKA 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: 11614736Abstract: An automatic driving executability determination unit restricts automatic driving when a charge amount determination unit (third determination unit) determines that a battery is in a low capacity state, and decides whether to restrict the automatic driving according to a determination result of a discharge performance determination unit (first determination unit) when a temperature determination unit (second determination unit) determines that the battery is in the low capacity state but a charge amount determination unit determines that the battery is not in the low capacity state.Type: GrantFiled: January 20, 2021Date of Patent: March 28, 2023Assignee: HONDA MOTOR CO., LTD.Inventors: Hayahito Ukai, Shota Kawanaka, Takehiro Horigome, Yasuhiro Ikeda, Takeshi Itagaki
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Patent number: 11458861Abstract: Provided is a vehicle control device that prevents a specific function of a traveling vehicle from being not able to operate due to a failure of a battery. The vehicle control device includes: a control section configured to execute predetermined function control for a vehicle system; a discharge performance determination section configured to determine whether or not a battery is able to discharge a predetermined amount of current in accordance with a predetermined function before the predetermined function control is started; and an execution availability determination section configured to permit the control section to execute the predetermined function when it is determined that the predetermined amount of current is able to be discharged and inhibit the control section from executing the predetermined function when it is determined that the predetermined amount of current is not able to be discharged.Type: GrantFiled: March 10, 2020Date of Patent: October 4, 2022Assignee: HONDA MOTOR CO., LTD.Inventors: Hayahito Ukai, Takehiro Horigome, Yasuhiro Ikeda, Satoshi Sekiguchi, Hironori Deno, Shota Kawanaka
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Patent number: 11433780Abstract: When replacement of a battery is detected, an automatic driving executability determination unit determines whether the battery is in a low capacity state until a predetermined time elapses, using battery information (battery charge amount, discharge performance) excluding an estimation value of a temperature of the battery, and restricts automatic driving according to such a determination result.Type: GrantFiled: January 20, 2021Date of Patent: September 6, 2022Assignee: HONDA MOTOR CO., LTD.Inventors: Hayahito Ukai, Shota Kawanaka, Takehiro Horigome, Yasuhiro Ikeda, Takeshi Itagaki
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Publication number: 20210229567Abstract: When replacement of a battery is detected, an automatic driving executability determination unit determines whether the battery is in a low capacity state until a predetermined time elapses, using battery information (battery charge amount, discharge performance) excluding an estimation value of a temperature of the battery, and restricts automatic driving according to such a determination result.Type: ApplicationFiled: January 20, 2021Publication date: July 29, 2021Inventors: Hayahito Ukai, Shota Kawanaka, Takehiro Horigome, Yasuhiro Ikeda, Takeshi Itagaki
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Publication number: 20210232138Abstract: An automatic driving executability determination unit restricts automatic driving when a charge amount determination unit (third determination unit) determines that a battery is in a low capacity state, and decides whether to restrict the automatic driving according to a determination result of a discharge performance determination unit (first determination unit) when a temperature determination unit (second determination unit) determines that the battery is in the low capacity state but a charge amount determination unit determines that the battery is not in the low capacity state.Type: ApplicationFiled: January 20, 2021Publication date: July 29, 2021Inventors: Hayahito Ukai, Shota Kawanaka, Takehiro Horigome, Yasuhiro Ikeda, Takeshi Itagaki
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Publication number: 20200298727Abstract: Provided is a vehicle control device that prevents a specific function of a traveling vehicle from being not able to operate due to a failure of a battery. The vehicle control device includes: a control section configured to execute predetermined function control for a vehicle system; a discharge performance determination section configured to determine whether or not a battery is able to discharge a predetermined amount of current in accordance with a predetermined function before the predetermined function control is started; and an execution availability determination section configured to permit the control section to execute the predetermined function when it is determined that the predetermined amount of current is able to be discharged and inhibit the control section from executing the predetermined function when it is determined that the predetermined amount of current is not able to be discharged.Type: ApplicationFiled: March 10, 2020Publication date: September 24, 2020Inventors: Hayahito Ukai, Takehiro Horigome, Yasuhiro Ikeda, Satoshi Sekiguchi, Hironori Deno, Shota Kawanaka
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Patent number: 10386400Abstract: An abnormality detection device includes a measuring unit 14c and a determining unit 14d. The measuring unit 14c measures, among a power supply, a capacitor, a load circuit, a switch connecting the power supply to the load circuit, and ground of a vehicle body, which are mounted on a vehicle, a first voltage of the capacitor charged by serially connecting the power supply, the capacitor, and the body ground in a state where the switch is controlled to be turned off. The determining unit 14d determines that the switch is not fixed in an ON state and an insulation resistance of the vehicle is normal when the first voltage measured by the measuring unit 14c is less than a first threshold.Type: GrantFiled: January 9, 2017Date of Patent: August 20, 2019Assignees: FUJITSU TEN LIMITED, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shota Kawanaka, Sho Tamura, Takahiro Okada, Hiromasa Tanaka
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Patent number: 10343524Abstract: A weld detection apparatus is mounted on a vehicle and measures first and second voltages of a first capacitor. The first voltage is measured when the first capacitor is charged while connected in series to a power supply and a ground of a vehicle body while switches that connect the power supply to a load circuit are controlled to be in a first state. The second voltage is measured at a predetermined timing, when the first capacitor is charged while connected in series to the power supply and the ground of the vehicle body while the switches are controlled to be in a second state different from the first state. The apparatus performs a weld detection process to decide which of the switches is welded in an ON-state when a difference between the first and second voltages is equal to or smaller than a predetermined threshold value.Type: GrantFiled: January 26, 2017Date of Patent: July 9, 2019Assignee: FUJITSU TEN LIMITEDInventors: Shota Kawanaka, Sho Tamura
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Patent number: 10197619Abstract: A power supply monitoring apparatus includes: a plurality of power supplies that are connected in series; and a capacitor that is connected to each of positive and negative electrodes of the plurality of power supplies via a plurality of switch elements. The power supply monitoring apparatus determines states of the plurality of switch elements, using a voltage value of the capacitor that is acquired when a first switch element of the plurality of switch elements is turned on, the first switch element being connected to one of a total negative-electrode side and a total positive-electrode side of the plurality of power supplies.Type: GrantFiled: November 8, 2016Date of Patent: February 5, 2019Assignee: FUJITSU TEN LimitedInventors: Shota Kawanaka, Sho Tamura
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Patent number: 10161980Abstract: A deterioration detecting apparatus includes: a capacitor that is connected to an insulated electric power source, and is charged and discharged; a voltage detecting unit that detects a voltage of the capacitor; and a deterioration detecting unit that detects a deterioration in insulating resistors of the electric power source on the basis of the voltage of the capacitor detected by the voltage detecting unit, in which the voltage detecting unit can detect the charged negative voltage of the capacitor.Type: GrantFiled: February 17, 2016Date of Patent: December 25, 2018Assignee: FUJITSU TEN LIMITEDInventors: Shota Kawanaka, Sho Tamura
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Patent number: 10114056Abstract: A power-supply monitoring device includes a capacitor that is connected to an insulated electric power source to execute charging/discharging. A power-supply monitoring device including this capacitor forms a charging path for detecting deterioration in an insulation resistance of an electric power source, and detects a voltage of the capacitor when being charged through this charging path. A vehicle controller specifies an abnormal part based on whether or not the voltage of the capacitor detected by the power-supply monitoring device is within a predetermined range.Type: GrantFiled: February 15, 2017Date of Patent: October 30, 2018Assignees: FUJITSU TEN LIMITED, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shota Kawanaka, Sho Tamura, Takahiro Okada, Hiromasa Tanaka, Mitsuyori Matsumura
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Patent number: 9995782Abstract: An insulation problem detection apparatus includes a microcomputer configured to: control a voltage detecting circuit to measure an insulation resistance of a vehicle based on a voltage at which a capacitor in the vehicle is charged, the microcomputer controlling the voltage detecting circuit to connect the capacitor in series to a power supply mounted in the vehicle and a ground of a body of the vehicle to measure the voltage at which the capacitor is charged; obtain a total voltage of the power supply from an external apparatus that is external to the microcomputer when the insulation resistance of the vehicle is measured by the voltage detecting circuit; and detect whether there is an insulation problem of the vehicle based on (i) the total voltage of the power supply obtained from the external apparatus and (ii) the insulation resistance of the vehicle measured by the voltage detecting circuit.Type: GrantFiled: November 28, 2016Date of Patent: June 12, 2018Assignee: FUJITSU TEN LIMITEDInventors: Shota Kawanaka, Sho Tamura
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Patent number: 9864013Abstract: A deterioration detecting apparatus includes: a capacitor that is connected to an insulated electric power source, and is charged and discharged; a voltage detecting unit that detects a voltage of the capacitor; and a deterioration detecting unit that detects a deterioration in an insulating resistor of the electric power source on the basis of the voltage of the capacitor charged through a charging path for detecting a deterioration in the insulating resistor of the electric power source, and the voltage of the capacitor during discharging.Type: GrantFiled: February 25, 2016Date of Patent: January 9, 2018Assignee: FUJITSU TEN LIMITEDInventor: Shota Kawanaka
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Publication number: 20170276714Abstract: A power-supply monitoring device includes a capacitor that is connected to an insulated electric power source to execute charging/discharging. A power-supply monitoring device including this capacitor forms a charging path for detecting deterioration in an insulation resistance of an electric power source, and detects a voltage of the capacitor when being charged through this charging path. A vehicle controller specifies an abnormal part based on whether or not the voltage of the capacitor detected by the power-supply monitoring device is within a predetermined range.Type: ApplicationFiled: February 15, 2017Publication date: September 28, 2017Applicants: FUJITSU TEN LIMITED, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shota KAWANAKA, Sho TAMURA, Takahiro OKADA, Hiromasa TANAKA, Mitsuyori MATSUMURA
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Publication number: 20170225572Abstract: A weld detection apparatus is mounted on a vehicle and measures first and second voltages of a first capacitor. The first voltage is measured when the first capacitor is charged while connected in series to a power supply and a ground of a vehicle body while switches that connect the power supply to a load circuit are controlled to be in a first state. The second voltage is measured at a predetermined timing, when the first capacitor is charged while connected in series to the power supply and the ground of the vehicle body while the switches are controlled to be in a second state different from the first state. The apparatus performs a weld detection process to decide which of the switches is welded in an ON-state when a difference between the first and second voltages is equal to or smaller than a predetermined threshold value.Type: ApplicationFiled: January 26, 2017Publication date: August 10, 2017Applicant: FUJITSU TEN LIMITEDInventors: Shota KAWANAKA, Sho TAMURA
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Publication number: 20170227589Abstract: An abnormality detection device includes a measuring unit 14c and a determining unit 14d. The measuring unit 14c measures, among a power supply, a capacitor, a load circuit, a switch connecting the power supply to the load circuit, and ground of a vehicle body, which are mounted on a vehicle, a first voltage of the capacitor charged by serially connecting the power supply, the capacitor, and the body ground in a state where the switch is controlled to be turned off. The determining unit 14d determines that the switch is not fixed in an ON state and an insulation resistance of the vehicle is normal when the first voltage measured by the measuring unit 14c is less than a first threshold.Type: ApplicationFiled: January 9, 2017Publication date: August 10, 2017Applicants: FUJITSU TEN LIMITED, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shota KAWANAKA, Sho TAMURA, Takahiro OKADA, Hiromasa TANAKA
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Publication number: 20170160333Abstract: An insulation problem detection apparatus includes a microcomputer configured to: control a voltage detecting circuit to measure an insulation resistance of a vehicle based on a voltage at which a capacitor in the vehicle is charged, the microcomputer controlling the voltage detecting circuit to connect the capacitor in series to a power supply mounted in the vehicle and a ground of a body of the vehicle to measure the voltage at which the capacitor is charged; obtain a total voltage of the power supply from an external apparatus that is external to the microcomputer when the insulation resistance of the vehicle is measured by the voltage detecting circuit; and detect whether there is an insulation problem of the vehicle based on (i) the total voltage of the power supply obtained from the external apparatus and (ii) the insulation resistance of the vehicle measured by the voltage detecting circuit.Type: ApplicationFiled: November 28, 2016Publication date: June 8, 2017Applicant: FUJITSU TEN LIMITEDInventors: Shota KAWANAKA, Sho TAMURA
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Publication number: 20170160334Abstract: A power supply monitoring apparatus includes: a plurality of power supplies that are connected in series; and a capacitor that is connected to each of positive and negative electrodes of the plurality of power supplies via a plurality of switch elements. The power supply monitoring apparatus determines states of the plurality of switch elements, using a voltage value of the capacitor that is acquired when a first switch element of the plurality of switch elements is turned on, the first switch element being connected to one of a total negative-electrode side and a total positive-electrode side of the plurality of power supplies.Type: ApplicationFiled: November 8, 2016Publication date: June 8, 2017Applicant: FUJITSU TEN LIMITEDInventors: Shota KAWANAKA, Sho TAMURA
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Publication number: 20160252556Abstract: A deterioration detecting apparatus includes: a capacitor that is connected to an insulated electric power source, and is charged and discharged; a voltage detecting unit that detects a voltage of the capacitor; and a deterioration detecting unit that detects a deterioration in insulating resistors of the electric power source on the basis of the voltage of the capacitor detected by the voltage detecting unit, in which the voltage detecting unit can detect the charged negative voltage of the capacitor.Type: ApplicationFiled: February 17, 2016Publication date: September 1, 2016Applicant: FUJITSU TEN LIMITEDInventors: Shota KAWANAKA, Sho TAMURA
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Publication number: 20160252587Abstract: A deterioration detecting apparatus includes: a capacitor that is connected to an insulated electric power source, and is charged and discharged; a voltage detecting unit that detects a voltage of the capacitor; and a deterioration detecting unit that detects a deterioration in an insulating resistor of the electric power source on the basis of the voltage of the capacitor charged through a charging path for detecting a deterioration in the insulating resistor of the electric power source, and the voltage of the capacitor during discharging.Type: ApplicationFiled: February 25, 2016Publication date: September 1, 2016Applicant: FUJITSU TEN LIMITEDInventor: Shota KAWANAKA