Patents by Inventor Hidetsugu Mukae
Hidetsugu Mukae 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: 11554687Abstract: Power supply system mounted in electric vehicle includes voltage measurement unit that measures a voltage of each of a plurality of cells to ensure both safety of an electric vehicle and convenience of a user. Current measurement unit therein measures a current flowing through the plurality of cells. Temperature measurement unit therein measures a temperature of the plurality of cells. Controller therein determines a current limit value defining an upper limit of a current for suppressing cell deterioration and ensuring safety based on the voltage, the current, and the temperature of each of the plurality of cells measured by voltage measurement unit, current measurement unit, and temperature measurement unit respectively, and that notifies a higher-level controller in electric vehicle of the determined current limit value.Type: GrantFiled: July 26, 2019Date of Patent: January 17, 2023Assignee: SANYO Electric Co., Ltd.Inventors: Hidetsugu Mukae, Masayuki Yoshinaga, Yoshitaka Sakiyama
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Patent number: 11489347Abstract: A voltage measurement unit measures voltages of the plurality of cells connected in series. A plurality of discharge circuits are connected in parallel to the plurality of cells, respectively. A controller controls, based on the voltages of the plurality of cells detected by voltage measurement unit, the plurality of discharge circuits to make the voltages or capacities of the plurality of cells equal to a target value. The controller determines a number of cells to be discharged among the plurality of cells in accordance with an allowable temperature of a substrate having the plurality of discharge circuits.Type: GrantFiled: November 16, 2018Date of Patent: November 1, 2022Assignee: SANYO Electric Co., Ltd.Inventors: Yousuke Nakagawa, Masanori Ito, Masato Nakayama, Hidetsugu Mukae
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Patent number: 11444469Abstract: In order to improve safety while suppressing a decrease in efficiency of an equalizing process between a plurality of cells, controller executes an equalizing process between a plurality of cells by controlling a plurality of discharge circuits based on voltages of the plurality of cells measured by voltage measurement unit. Anomaly determination circuit determines whether or not the voltage of each of cells measured by voltage measurement unit is within a normal range. Controller includes, for each first cycle, a first discharge suspension period during which the voltages of the plurality of cells are measured without an influence of the equalizing process during execution of the equalizing process between the plurality of cells and includes, for each second cycle longer than the first cycle, a second discharge suspension period during which a determination result according to anomaly determination circuit is fixed.Type: GrantFiled: April 5, 2019Date of Patent: September 13, 2022Assignee: SANYO Electric Co., Ltd.Inventors: Masato Nakayama, Hidetsugu Mukae, Yousuke Nakagawa, Masanori Ito
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Publication number: 20220134886Abstract: Controller performs a plurality of pieces of abnormality diagnosing processing in a vehicle. The plurality of pieces of abnormality diagnosing processing includes a first-type abnormality diagnosing processing of detecting the abnormality that occurs due to a plurality of types of causes and a second-type abnormality diagnosing processing of detecting the abnormality that occurs due to one type of the cause. When the abnormality is detected by the first-type abnormality diagnosing processing, controller specifies the cause of the abnormality detected by the first-type abnormality diagnosing processing based on a diagnosis result of the second-type abnormality diagnosing processing.Type: ApplicationFiled: December 19, 2019Publication date: May 5, 2022Inventors: YOSHITAKA SAKIYAMA, NORIHARU KOBAYASHI, HIDETSUGU MUKAE
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Patent number: 11180032Abstract: A monitoring device includes a first detection block, a second detection block, and a monitoring unit. Each of the first detection block and the second detection block includes one or more voltage detectors that detect voltages across power storage cells. The monitoring unit includes a complement processor that, when a circuit in the first detection block breaks down and the first detection block fails to transmit the states of the power storage cells to the monitoring unit, complements the states of the power storage cells that have not been acquired from the first detection block, based on the states of the power storage cells detected in the second detection block.Type: GrantFiled: March 15, 2018Date of Patent: November 23, 2021Assignee: SANYO Electric Co., Ltd.Inventors: Masato Nishikawa, Kimihiko Furukawa, Hidetsugu Mukae, Shinya Inui, Tomonori Kawamoto
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Publication number: 20210339651Abstract: Power supply system mounted in electric vehicle includes voltage measurement unit that measures a voltage of each of a plurality of cells to ensure both safety of an electric vehicle and convenience of a user. Current measurement unit therein measures a current flowing through the plurality of cells. Temperature measurement unit therein measures a temperature of the plurality of cells. Controller therein determines a current limit value defining an upper limit of a current for suppressing cell deterioration and ensuring safety based on the voltage, the current, and the temperature of each of the plurality of cells measured by voltage measurement unit, current measurement unit, and temperature measurement unit respectively, and that notifies a higher-level controller in electric vehicle of the determined current limit value.Type: ApplicationFiled: July 26, 2019Publication date: November 4, 2021Inventors: HIDETSUGU MUKAE, MASAYUKI YOSHINAGA, YOSHITAKA SAKIYAMA
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Publication number: 20210234378Abstract: In order to improve safety while suppressing a decrease in efficiency of an equalizing process between a plurality of cells, controller executes an equalizing process between a plurality of cells by controlling a plurality of discharge circuits based on voltages of the plurality of cells measured by voltage measurement unit. Anomaly determination circuit determines whether or not the voltage of each of cells measured by voltage measurement unit is within a normal range. Controller includes, for each first cycle, a first discharge suspension period during which the voltages of the plurality of cells are measured without an influence of the equalizing process during execution of the equalizing process between the plurality of cells and includes, for each second cycle longer than the first cycle, a second discharge suspension period during which a determination result according to anomaly determination circuit is fixed.Type: ApplicationFiled: April 5, 2019Publication date: July 29, 2021Inventors: MASATO NAKAYAMA, HIDETSUGU MUKAE, YOUSUKE NAKAGAWA, MASANORI ITO
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Publication number: 20200412134Abstract: A voltage measurement unit measures voltages of the plurality of cells connected in series. A plurality of discharge circuits are connected in parallel to the plurality of cells, respectively. A controller controls, based on the voltages of the plurality of cells detected by voltage measurement unit, the plurality of discharge circuits to make the voltages or capacities of the plurality of cells equal to a target value. The controller determines a number of cells to be discharged among the plurality of cells in accordance with an allowable temperature of a substrate having the plurality of discharge circuits.Type: ApplicationFiled: November 16, 2018Publication date: December 31, 2020Applicant: SANYO Electric Co., Ltd.Inventors: Yousuke Nakagawa, Masanori Ito, Masato Nakayama, Hidetsugu Mukae
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Patent number: 10843567Abstract: A monitoring system includes: a first monitor that receives, from a first output terminal, a voltage detected by a voltage detector and information on a circuit failure; a second monitor that receives, from a second output terminal, an abnormal voltage signal detected by the voltage detector; and a vehicle controller that electrically disconnects a driving motor from an electricity storing unit. When a circuit failure occurs in one circuit of a circuit on a side of the first output terminal and a circuit on a side of the second output terminal and a circuit failure does not occur in the other circuit, and the electricity storing unit is normal, the vehicle controller connects the driving motor with the electricity storing unit.Type: GrantFiled: March 26, 2018Date of Patent: November 24, 2020Assignee: SANYO ELECTRIC CO., LTD.Inventors: Masato Nishikawa, Kimihiko Furukawa, Hidetsugu Mukae, Shinya Inui, Tomonori Kawamoto
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Patent number: 10680448Abstract: A voltage detection circuit detects the voltage of a plurality of serially connected cells in a power storage unit. The voltage detection circuit receives a supply of a power supply voltage from both ends of the plurality of cells. A DC-DC converter converts the voltage between both ends of the plurality of cells into another DC voltage. An adjustment circuit adjusts the power consumption of the plurality of cells. The adjustment circuit operates using the DC voltage generated by the DC-DC converter as the power supply voltage.Type: GrantFiled: October 5, 2016Date of Patent: June 9, 2020Assignee: SANYO Electric Co., Ltd.Inventors: Junya Yano, Tomoyuki Matsubara, Hidetsugu Mukae, Jun Asakura
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Publication number: 20200033418Abstract: A monitoring system includes: a first monitor that receives, from a first output terminal, a voltage detected by a voltage detector and information on a circuit failure; a second monitor that receives, from a second output terminal, an abnormal voltage signal detected by the voltage detector; and a vehicle controller that electrically disconnects a driving motor from an electricity storing unit. When a circuit failure occurs in one circuit of a circuit on a side of the first output terminal and a circuit on a side of the second output terminal and a circuit failure does not occur in the other circuit, and the electricity storing unit is normal, the vehicle controller connects the driving motor with the electricity storing unit.Type: ApplicationFiled: March 26, 2018Publication date: January 30, 2020Applicant: SANYO Electric Co., Ltd.Inventors: Masato Nishikawa, Kimihiko Furukawa, Hidetsugu Mukae, Shinya Inui, Tomonori Kawamoto
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Publication number: 20200003842Abstract: A monitoring device includes a first detection block, a second detection block, and a monitoring unit. Each of the first detection block and the second detection block includes one or more voltage detectors that detect voltages across power storage cells. The monitoring unit includes a complement processor that, when a circuit in the first detection block breaks down and the first detection block fails to transmit the states of the power storage cells to the monitoring unit, complements the states of the power storage cells that have not been acquired from the first detection block, based on the states of the power storage cells detected in the second detection block.Type: ApplicationFiled: March 15, 2018Publication date: January 2, 2020Applicant: SANYO Electric Co., Ltd.Inventors: Masato Nishikawa, Kimihiko Furukawa, Hidetsugu Mukae, Shinya Inui, Tomonori Kawamoto
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Publication number: 20190074699Abstract: A voltage detection circuit detects the voltage of a plurality of serially connected cells in a power storage unit. The voltage detection circuit receives a supply of a power supply voltage from both ends of the plurality of cells. A DC-DC converter converts the voltage between both ends of the plurality of cells into another DC voltage. An adjustment circuit adjusts the power consumption of the plurality of cells. The adjustment circuit operates using the DC voltage generated by the DC-DC converter as the power supply voltage.Type: ApplicationFiled: October 5, 2016Publication date: March 7, 2019Applicants: Sanyo Electric Co., Ltd., Sanyo Electric Co., Ltd.Inventors: Junya Yano, Tomoyuki Matsubara, Hidetsugu Mukae, Jun Asakura
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Patent number: 7973247Abstract: In a circuit board-connecting portion 10, a first connecting portion 15 and a second connecting portion 20 are disposed in facing relation such that first conductors 14 contact second conductors 19, and also a first substrate 12 and a second substrate 17 are fixed to each other by an adhesive 22. The first connecting portion 15 has rigid members 24 provided at a reverse surface 12B of the first substrate 12 which is a soft substrate, and the rigid members 24 are disposed along a direction of a thickness of the first substrate 14, and are provided at positions corresponding to at least parts 14A of the first conductors 14.Type: GrantFiled: February 3, 2006Date of Patent: July 5, 2011Assignee: Panasonic CorporationInventors: Hidetsugu Mukae, Hiroyuki Suzuki
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Publication number: 20100220457Abstract: To provide a connecting portion of a circuit board and a circuit board-connecting structure, in which connecting portions can be positively connected together, and also a connecting process can be simplified. In a circuit board-connecting portion 10, a first connecting portion 15 and a second connecting portion 20 are disposed in facing relation such that first conductors 14 contact second conductors 19, and also a first substrate 12 and a second substrate 17 are fixed to each other by an adhesive 22. The first connecting portion 15 has rigid members 24 provided at a reverse surface 12B of the first substrate 12 which is a soft substrate, and the rigid members 24 are disposed along a direction of a thickness of the first substrate 14, and are provided at positions corresponding to at least parts 14A of the first conductors 14.Type: ApplicationFiled: February 3, 2006Publication date: September 2, 2010Applicant: PANASONIC CORPORATIONInventors: Hidetsugu Mukae, Hiroyuki Suzuki