Patents by Inventor Taisuke Kurachi

Taisuke Kurachi 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).

  • Publication number: 20240159835
    Abstract: A battery monitoring device is applied to an assembled battery having a plurality of battery cells connected in series, the battery cells including a first battery cell and a second battery cell. The battery monitoring device includes: an acquisition unit configured to acquire, during charging or discharging of the battery cells, a battery parameter of each of the first and second battery cells, the battery parameter of each of the first and second battery cells being a terminal voltage across the corresponding one of the first and second battery cells or an impedance of the corresponding one of the first and second battery cells; and a state calculation unit configured to calculate a difference between the acquired battery parameter of the first battery cell and the acquired battery parameter of the second battery cell, and calculate a battery state of the battery cells based on the calculated difference.
    Type: Application
    Filed: January 26, 2024
    Publication date: May 16, 2024
    Applicant: DENSO CORPORATION
    Inventors: Masaki UCHIYAMA, Shunichi Kubo, Taisuke Kurachi, Yuuki Hori
  • Publication number: 20240030723
    Abstract: An equalization device performs equalization of amounts of charge of cell batteries in a battery pack. The device includes a state determination unit that determines whether it is in a predetermined charging state that includes at least one of a state in which the battery pack is subjected to constant current charge and a state in which the battery pack is subjected to constant power charge and does not include a state in which the battery pack is subjected to constant voltage charge, a charging time variation determination unit that determines whether a variation voltage indicating variation of a voltage of each of the cell batteries is higher than a predetermined charging time determination voltage, and a charging time equalization unit that performs the equalization if it is determined that it is in the predetermined charging state and that the variation voltage is higher than the charging time determination voltage.
    Type: Application
    Filed: October 2, 2023
    Publication date: January 25, 2024
    Applicant: DENSO CORPORATION
    Inventors: Taisuke KURACHI, Masaki UCHIYAMA
  • Publication number: 20230411708
    Abstract: A battery device includes: a storage unit that stores battery information including a closed circuit voltage of a plurality of battery cells electrically connected to each other and a change amount in the closed circuit voltage; a setting unit that sets an acquisition range of the closed circuit voltage based on the battery information; a detection unit that detects the closed circuit voltage; and a conversion unit that converts the closed circuit voltage detected by the detection unit into a digital signal within the acquisition range set by the setting unit.
    Type: Application
    Filed: August 4, 2023
    Publication date: December 21, 2023
    Applicant: DENSO CORPORATION
    Inventors: Yoshihiro SATO, Taisuke KURACHI, Shingo KAWAHARA
  • Publication number: 20230060600
    Abstract: A monitoring system includes monitoring devices provided in a monitored device and monitoring the monitored device, and a controller that wirelessly communicates with the monitoring devices to acquire monitoring information of the monitored device from the monitoring devices. The monitored device is switchable between an operating state and a non-operating state. In the non-operating state of the monitored device, the monitoring devices establish communication connections in which at least one of the monitoring devices acts as a communication master and others of the monitoring devices act as communication slaves for the communication master. In the non-operating state of the monitored device, the controller does not act as a communication master for the monitoring devices.
    Type: Application
    Filed: August 26, 2022
    Publication date: March 2, 2023
    Inventors: SHOGO SHIGEMORI, TATSUHIRO NUMATA, TETSUYA WATANABE, MASAKI UCHIYAMA, TAISUKE KURACHI
  • Publication number: 20230068288
    Abstract: A battery management system includes a monitoring device and a controller. The monitoring device is arranged in a housing accommodating a battery. The monitoring device monitors the battery and acquires battery monitoring information that includes information indicating a state of the battery. The controller performs wireless communication with the monitoring device and executes a predetermined process based on the battery monitoring information. The monitoring device holds imperfect information that is battery monitoring information indicating failure of data transmission/reception between the monitoring device and the controller. The monitoring device retransmits information corresponding to the imperfect information from next time the battery monitoring information is transmitted.
    Type: Application
    Filed: August 26, 2022
    Publication date: March 2, 2023
    Inventors: Takuma NAKAGAWA, Shogo SHIGEMORI, Tatsuhiro NUMATA, Tetsuya WATANABE, Masaki UCHIYAMA, Taisuke KURACHI
  • Publication number: 20230062095
    Abstract: A battery management system includes a monitoring device and a controller. The monitoring device is arranged in a housing accommodating a battery, monitors the battery and acquires battery monitoring information that includes information indicating a state of the battery. The controller performs wireless communication with the monitoring device and execute a predetermined process based on the battery monitoring information. The controller transmits a request for battery monitoring information to the monitoring device. The monitoring device transmits the battery monitoring information to the controller in response to the request. The controller determines whether missing of the battery monitoring information has occurred based on a correlation between the battery monitoring information acquired from the monitoring device via wireless communication and relationship information held by the controller related to the battery monitoring information.
    Type: Application
    Filed: August 26, 2022
    Publication date: March 2, 2023
    Inventors: TAKUYA OHATA, SHOGO SHIGEMORI, TATSUHIRO NUMATA, TETSUYA WATANABE, MASAKI UCHIYAMA, TAISUKE KURACHI
  • Patent number: 11511644
    Abstract: A learning apparatus includes: a learning part that performs, based on charging/discharging data indicating at least one of charging and discharging of a secondary battery that supplies electric power for traveling of a vehicle, a capacity learning of the secondary battery and that performs the capacity learning in response to a change amount of a charging rate that is indicated by the charging/discharging data exceeding a threshold value; and a threshold determination part that determines the threshold value based on history information of the learning part performing the capacity learning in a predetermined period.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: November 29, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Taisuke Tsurutani, Taisuke Kurachi
  • Patent number: 11491891
    Abstract: A presentation device includes an acquirer configured to acquire a usage status of a secondary battery which is the usage status of a secondary battery with which a plurality of vehicles including a target vehicle are equipped and includes one or more items, a deriver configured to derive representative values of items of the secondary battery in a vehicle in a predetermined area, and a presenter configured to present a relationship of items of the usage status of a secondary battery with which the target vehicle is equipped with respect to the representative values derived by the deriver.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: November 8, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Taisuke Tsurutani, Taisuke Kurachi
  • Patent number: 11413985
    Abstract: A diagnosis system includes: a charging control part that controls, upon connection between a vehicle and a charger provided at an outside of the vehicle, charging from the charger to a secondary battery provided on the vehicle; and a derivation part that derives a degradation degree of the secondary battery based on a change amount of a charging rate of the secondary battery and an integration value of a charging current of the secondary battery, wherein the charging control part determines, based on a remaining time until a next departure time of the vehicle, whether specific charging in which a charging pause period is provided in a middle of a charging time of the secondary battery is performed.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: August 16, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Taisuke Tsurutani, Taisuke Kurachi, Yuuki Ohno
  • Publication number: 20220250499
    Abstract: A control apparatus for a vehicle determines whether to perform either of a first control and a second control. In the first control, power is transferred between a power supply facility outside a vehicle and a power storage apparatus during stopping of the vehicle. In the second control, power is transferred between a rotating electric machine and the power storage apparatus through an inverter during traveling of the vehicle. In response to the first control, the apparatus performs control of the inverter to set a controlled variable to be equal to or less than a first limit value. In response to the second control, the apparatus performs control of the inverter to set a controlled variable to be equal to or less than a second limit value. The apparatus sets at least either of the first and second limit values to a value suppressing decrease in drivability of the vehicle.
    Type: Application
    Filed: April 26, 2022
    Publication date: August 11, 2022
    Applicant: DENSO CORPORATION
    Inventors: Yoshitomo TAKEUCHI, Kousuke BABA, Yoshihiro SATO, Taisuke KURACHI
  • Publication number: 20220131389
    Abstract: A battery management device is configured to set a limited measurement range that limits a range for measuring a voltage of each of a plurality of batteries for a vehicle. The battery management device is configured to measure the voltage of each of the plurality of batteries within the limited measurement range.
    Type: Application
    Filed: October 15, 2021
    Publication date: April 28, 2022
    Inventors: Shogo SHIGEMORI, Shunichi KUBO, Takeshi IIDA, Yukihiro TOMONAGA, Taisuke KURACHI, Shozo SUZUKI, Shinya KATO
  • Publication number: 20200130530
    Abstract: A learning apparatus includes: a learning part that performs, based on charging/discharging data indicating at least one of charging and discharging of a secondary battery that supplies electric power for traveling of a vehicle, a capacity learning of the secondary battery and that performs the capacity learning in response to a change amount of a charging rate that is indicated by the charging/discharging data exceeding a threshold value; and a threshold determination part that determines the threshold value based on history information of the learning part performing the capacity learning in a predetermined period.
    Type: Application
    Filed: October 17, 2019
    Publication date: April 30, 2020
    Inventors: Taisuke Tsurutani, Taisuke Kurachi
  • Publication number: 20200116797
    Abstract: A derivation device includes an acquirer configured to acquire a capacity retention rate and an output retention rate of a secondary battery that is configured to supply power for traveling of a vehicle, and a deriver configured to derive information on a capacity of the secondary battery using the capacity retention rate and the output retention rate.
    Type: Application
    Filed: September 18, 2019
    Publication date: April 16, 2020
    Inventors: Taisuke Tsurutani, Taisuke Kurachi
  • Publication number: 20200114775
    Abstract: A diagnosis system includes: a charging control part that controls, upon connection between a vehicle and a charger provided at an outside of the vehicle, charging from the charger to a secondary battery provided on the vehicle; and a derivation part that derives a degradation degree of the secondary battery based on a change amount of a charging rate of the secondary battery and an integration value of a charging current of the secondary battery, wherein the charging control part determines, based on a remaining time until a next departure time of the vehicle, whether specific charging in which a charging pause period is provided in a middle of a charging time of the secondary battery is performed.
    Type: Application
    Filed: October 2, 2019
    Publication date: April 16, 2020
    Inventors: Taisuke Tsurutani, Taisuke Kurachi, Yuuki Ohno
  • Publication number: 20200108730
    Abstract: A diagnosis apparatus includes: an estimation part that estimates a deterioration state of a secondary battery based on an output of a sensor which is attached to the secondary battery that supplies electric power for driving a vehicle to travel; a derivation part that derives an index value indicating validness of data used for estimation of the deterioration state; an output part that outputs information; and an approval part that allows the output part to output information requesting an approval for performing a specific charging/discharging operation using an external charger which supplies electric power to the secondary battery in a case where the index value that is derived by the derivation part is equal to or smaller than a predetermined value.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 9, 2020
    Inventors: Taisuke Tsurutani, Taisuke Kurachi
  • Publication number: 20200101864
    Abstract: A presentation device includes an acquirer configured to acquire a usage status of a secondary battery which is the usage status of a secondary battery with which a plurality of vehicles including a target vehicle are equipped and includes one or more items, a deriver configured to derive representative values of items of the secondary battery in a vehicle in a predetermined area, and a presenter configured to present a relationship of items of the usage status of a secondary battery with which the target vehicle is equipped with respect to the representative values derived by the deriver
    Type: Application
    Filed: September 24, 2019
    Publication date: April 2, 2020
    Inventors: Taisuke Tsurutani, Taisuke Kurachi