Patents by Inventor Akihiro Katayama

Akihiro Katayama 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).

  • Patent number: 11143083
    Abstract: A storage device stores mapping data and association data. The mapping data defines a mapping that outputs an estimated value of the temperature of a catalyst using a warm-up operation amount variable and the previous value of the estimated value as an input. The association data associates the integrated value of an intake air amount of an internal combustion engine from the startup of the engine and the temperature of the catalyst. The execution device repeatedly calculates the estimated value based on the output of the mapping. When the correspondence relationship between the integrated value and the estimated value is different from the correspondence relationship between the integrated value and the temperature of the catalyst in the association data, the warm-up process is determined to have an anomaly.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: October 12, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Harufumi Muto, Akihiro Katayama, Yuki Ikejiri, Yosuke Hashimoto
  • Patent number: 11125179
    Abstract: A vehicle controller is provided. An update process updates a relationship defining data by inputting, to a predetermined update map, a state of a vehicle, a value of an action variable used to operate an electronic device, and a reward corresponding to that electronic device. A reward calculating process provides, based on the state of the vehicle obtained by an obtaining process, a greater reward when a characteristic of the vehicle meets a standard than when the characteristic of the vehicle does not meet the standard. A loosening process loosens the standard to a larger extent when the degree of deterioration is large than when the degree of deterioration is small.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: September 21, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yosuke Hashimoto, Akihiro Katayama, Yuta Oshiro, Kazuki Sugie, Naoya Oka
  • Patent number: 11125178
    Abstract: A state detection system for an internal combustion engine includes: a memory configured to store mapping data, the mapping data being data that defines a detection mapping, the detection mapping being a mapping between an input and an output, the input being a rotation waveform variable and a drive system rotation speed variable and the output being a value of a combustion state variable, and the detection mapping including a joint operation of the rotation waveform variable and the drive system rotation speed variable based on a parameter learned by machine learning; and a processor configured to execute an acquisition process and a determination process, the acquisition process being configured to acquire a value of the drive system rotation speed variable, the determination process being configured to determine whether or not the internal combustion engine is in a predetermined operating state.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: September 21, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yohsuke Hashimoto, Akihiro Katayama, Yuta Oshiro, Kazuki Sugie, Naoya Oka
  • Patent number: 11111869
    Abstract: A state detection system for an internal combustion engine includes: a memory configured to store mapping data, the mapping data being data that defines a detection mapping, the detection mapping being a mapping between an input and an output, the input being a first waveform variable and a second waveform variable and the output being a value of a combustion state variable, and the detection mapping including a joint operation of the first waveform variable and the second waveform variable based on a parameter learned by machine learning; and a processor configured to execute an acquisition process and a determination process. The acquisition process acquires a value of the first waveform variable. The determination process determines whether or not the internal combustion engine is in a predetermined operating state.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: September 7, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yohsuke Hashimoto, Akihiro Katayama, Yuta Oshiro, Kazuki Sugie, Naoya Oka
  • Patent number: 11108964
    Abstract: An information processing apparatus presenting information to an operator operating an image pickup device includes an image-pickup range setting portion setting an image pickup range over which an image can be taken by the image pickup device, a position and orientation calculation portion calculating a position and orientation of the image pickup device by using the image taken by the image pickup device, an evaluation portion evaluating an image pickup situation in the image pickup range, set by the image-pickup range setting portion, on the basis of the position and orientation calculated by the position and orientation calculation portion, and a guide information presentation portion presenting, in accordance with evaluation by the evaluation portion, guide information for guiding an operation of the image pickup device on a display device.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: August 31, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nozomu Kasuya, Makoto Tomioka, Daisuke Kotake, Masahiro Suzuki, Takayuki Yamada, Masakazu Fujiki, Akihiro Katayama
  • Patent number: 11099102
    Abstract: A misfire detection device for an internal combustion engine is provided. A mapping takes time series data of instantaneous speed parameters as inputs. Each instantaneous speed parameter corresponds to one of a plurality of successive second intervals in a first interval. The instantaneous speed parameters correspond to the rotational speed of the crankshaft. The first interval is a rotational angular interval of the crankshaft in which compression top dead center occurs. The second interval is smaller than an interval between compression top dead center positions. The mapping outputs a probability that a misfire has occurred in at least one cylinder that reaches compression top dead center in the first interval. The mapping data defining the mapping has been learned by machine learning.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: August 24, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Harufumi Muto, Satoshi Takamoto, Akihiro Katayama, Tatsunobu Murai
  • Publication number: 20210254571
    Abstract: A vehicle control data generation method includes causing processing circuitry to execute an obtaining process that obtains a state of a vehicle and a specifying variable, an operating process that operates an electronic device, a reward calculating process that provides a greater reward when a characteristic of the vehicle meets a standard than when the characteristic does not meet the standard, and an updating process that updates relationship defining data. The update map outputs the updated relationship defining data. The reward calculating process includes a changing process that changes the reward, provided when the characteristic of the vehicle is a predetermined characteristic, such that the reward in a case where torque generated by an internal combustion engine is used to generate the propelling force of the vehicle differs from the reward in a case where the torque is not used to generate the propelling force.
    Type: Application
    Filed: January 28, 2021
    Publication date: August 19, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yosuke HASHIMOTO, Akihiro KATAYAMA, Yuta OSHIRO, Kazuki SUGIE, Naoya OKA
  • Publication number: 20210255061
    Abstract: In a method for learning a mapping used by a computer, the mapping calculates a probability related to a categorization result using an internal combustion engine state variable as an input. The categorization result is a result of categorizing a state of an internal combustion engine into one of regions. The computer outputs the categorization result based on the calculated probability. The method includes inputting multiple training data to a training computer. The training data include the internal combustion engine state variable and the categorization result that is correct and associated with the internal combustion engine state variable. The method further includes updating the mapping based on the training data with the training computer. The training data are distributed to the regions and have a distribution density that is increased at locations closer to a border between the regions.
    Type: Application
    Filed: February 5, 2021
    Publication date: August 19, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yosuke HASHIMOTO, Akihiro KATAYAMA, Naoya OKA
  • Publication number: 20210253086
    Abstract: A vehicle control data generation method includes causing processing circuitry to execute an obtaining process that obtains a state of a vehicle and a specifying variable, an operating process that operates an electronic device, a reward calculating process that provides a greater reward when a characteristic of the vehicle meets a standard than when the characteristic does not meet the standard, an updating process that updates relationship defining data. The update map outputs the updated relationship defining data so as to increase an expected return for the reward in a case where the electronic device is operated in accordance with the relationship defining data. The reward calculating process includes a changing process that changes the reward between when the characteristic of the vehicle is a predetermined characteristic in an EV mode and when the characteristic is the predetermined characteristic in a HV mode.
    Type: Application
    Filed: January 26, 2021
    Publication date: August 19, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yosuke HASHIMOTO, Akihiro KATAYAMA, Yuta OSHIRO, Kazuki SUGIE, Naoya OKA
  • Patent number: 11092103
    Abstract: Provided is a state determination device for an internal combustion engine. The state determination device includes a storage device, and an execution device. The storage device stores mapping data that is data defining a mapping that outputs a determination result of a state of the internal combustion engine, by using an internal combustion engine state variable as an input. The execution device executes an acquisition process of acquiring the internal combustion engine state variable each time a crankshaft rotates by a specified angle, and a determination process of determining the state of the internal combustion engine based on an output of the mapping using the internal combustion engine state variable as an input. The execution device omits a part of the determination process performed each time the crankshaft rotates by the specified angle when a rotation speed of the crankshaft becomes equal to or higher than a predetermined threshold.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: August 17, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yohsuke Hashimoto, Akihiro Katayama, Yuta Oshiro, Kazuki Sugie, Naoya Oka
  • Publication number: 20210237773
    Abstract: An execution device executes an obtaining process that obtains a state of a vehicle, an operating process that operates an electronic device of the vehicle based on the state of the vehicle obtained by the obtaining process and operation data, a performance determining process that determines whether an environmental performance of the vehicle when the electronic device is operated is lower than a determination performance, and a data updating process that updates the operation data so as to increase the environmental performance of the vehicle when the performance determining process determines that the environmental performance of the vehicle is lower than the determination performance.
    Type: Application
    Filed: January 26, 2021
    Publication date: August 5, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yosuke HASHIMOTO, Akihiro KATAYAMA, Yuta OSHIRO, Kazuki SUGIE, Naoya OKA
  • Publication number: 20210239060
    Abstract: A controller includes a memory device and an execution device that executes first and second operation processes, a switching process, and a recording process. The first operation process operates an operated unit by an operated amount, which is calculated on the basis of a state variable, using an adapted data set. The second operation process operates the operated unit by an operated amount that is defined by a relationship defining data set and the state variable. The switching process switches a process that operates the operated unit between the first operation process and the second operation process. The recording process obtains a value of the state variable used in calculation of the operated amount using the first operation process during an operation of the operated unit using the second operation process. The recording process also records time-series data of the obtained value of the state variable in the memory device.
    Type: Application
    Filed: February 1, 2021
    Publication date: August 5, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yosuke HASHIMOTO, Akihiro KATAYAMA, Yuta OSHIRO, Kazuki SUGIE, Naoya OKA
  • Publication number: 20210231092
    Abstract: A CPU mounted on a vehicle obtains positional data by the GPS. Next, the CPU identifies an octane number, which is a parameter related to combustion of fuel, on the basis of the positional data corresponding to the position of the vehicle and the date and time at which the positional data was obtained. Then, the CPU calculates a correction amount on the basis of the identified parameter. The CPU assigns, to ignition timing, a value calculated on the basis of the correction amount. The CPU controls an ignition device so that the ignition device generates spark discharge at the calculated ignition timing.
    Type: Application
    Filed: December 30, 2020
    Publication date: July 29, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yosuke HASHIMOTO, Akihiro KATAYAMA, Yuta OSHIRO, Kazuki SUGIE, Naoya OKA
  • Publication number: 20210232845
    Abstract: There is provided with an information processing apparatus. From an image capturing apparatus which can move, a captured image of an object is obtained. The position of the image capturing apparatus is derived using the captured image and a three-dimensional map. The three-dimensional map is corrected using information indicating a reliability of: information indicating the three-dimensional position of the feature included in a predefined area in the three-dimensional map held by the holding unit; and information indicating a three-dimensional position of another feature of the object, the information obtained based on the captured image from an expanded area of the predefined area in the three-dimensional map held by the holding unit.
    Type: Application
    Filed: April 13, 2021
    Publication date: July 29, 2021
    Inventors: Daisuke Kotake, Akihiro Katayama, Makoto Tomioka, Nozomu Kasuya, Takayuki Yamada, Masahiro Suzuki, Masakazu Fujiki
  • Publication number: 20210229687
    Abstract: A vehicle controller, a vehicle control system, a vehicle control method, and a vehicle control system control method are provided. An internal execution device of the vehicle controller detects that learning data stored by an internal memory device due to the occurrence of an anomaly in a vehicle. The internal execution device transmits, to the outside of the vehicle, a request signal that requests for previously-learned learning data, where learning is performed from an initial state of the learning data. The internal execution device causes the internal memory device to store the received previously-learned learning data instead of the reset learning data.
    Type: Application
    Filed: January 12, 2021
    Publication date: July 29, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yosuke HASHIMOTO, Akihiro KATAYAMA, Yuta OSHIRO, Kazuki SUGIE, Naoya OKA
  • Publication number: 20210229689
    Abstract: A memory stores a plurality of pieces of map data. A memory of a controller stores map data. The controller executes an operation process for operating an electronic device of an internal combustion engine using the map data in the memory, and an acquisition process for acquiring a condition of a vehicle. The controller and a server execute a data changing process for selecting one of the pieces of map data stored in the memory based on the condition of the vehicle, and storing the selected map data in the memory.
    Type: Application
    Filed: January 19, 2021
    Publication date: July 29, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yohsuke HASHIMOTO, Akihiro KATAYAMA, Yuta OSHIRO, Kazuki SUGIE, Naoya OKA
  • Publication number: 20210229688
    Abstract: A vehicle control method applied to a system including a vehicle controller and a server configured to communicate with the vehicle controller is provided. The vehicle control method includes executing a state obtaining process that obtains a state of a vehicle, executing an operating process that operates an electronic device based on the state of the vehicle and operating data, executing an environment information obtaining process that obtains environment information, executing an environment determination process that determines whether traveling environment indicated by the environment information is changed, and when the environment determination process determines that the traveling environment is changed, executing a data changing process that causes the vehicle controller to obtain the operating data corresponding to the environment information from the server and causes a first storage device to store the operating data.
    Type: Application
    Filed: December 21, 2020
    Publication date: July 29, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yosuke HASHIMOTO, Akihiro KATAYAMA, Yuta OSHIRO, Kazuki SUGIE, Naoya OKA
  • Publication number: 20210231070
    Abstract: A controller includes a memory device and an execution device, which executes an operation of an operated unit of an internal combustion engine. The execution device executes a first calculation process that uses adapted data sets in order to calculate an operated amount on the basis of a detected value of a state variable, a second calculation process that calculates, as the operated amount, a value that is determined by a relationship defining data set and the state variable, a reinforcement learning process that updates the relationship defining data set, first and operation processes that operate the operated unit in accordance with a calculated value of the operated amount, and a switching process that switches a process that operates the operated unit between the first operation process and the second operation process in accordance with the state of the vehicle.
    Type: Application
    Filed: January 19, 2021
    Publication date: July 29, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yosuke HASHIMOTO, Akihiro KATAYAMA, Yuta OSHIRO, Kazuki SUGIE, Naoya OKA
  • Publication number: 20210222640
    Abstract: A controller includes a memory device and an execution device, which executes an operation of an operated unit of an internal combustion engine. The execution device includes a first operation process that operates the operated unit by an operated amount, which is calculated on the basis of a state of a vehicle, using an adapted data set, a second operation process that operates the operated unit by an operated amount that is defined by a relationship defining data set and the state of the vehicle, and a switching process that switches the operation of the operated unit between an operation by the first operation process and an operation by the second operation process, depending on whether the vehicle is performing a manual acceleration travel or an automatic acceleration travel.
    Type: Application
    Filed: January 4, 2021
    Publication date: July 22, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yosuke HASHIMOTO, Akihiro KATAYAMA, Yuta OSHIRO, Kazuki SUGIE, Naoya OKA
  • Publication number: 20210213963
    Abstract: A method for generating vehicle controlling data includes executing an operating process that operates an electronic device, executing an obtaining process that obtains a state of a vehicle, executing a reward calculation process that assigns a reward based on the state of the vehicle, and an updating process that updates relationship specifying data. The reward calculation process includes a changing process that changes a reward assigned when an area variable equals a second value and a property of the vehicle is a predetermined property from a reward assigned when the area variable equals a first value and the property of the vehicle is the predetermined property.
    Type: Application
    Filed: December 29, 2020
    Publication date: July 15, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yosuke HASHIMOTO, Akihiro KATAYAMA, Yuta OSHIRO, Kazuki SUGIE, Naoya OKA