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公开(公告)号：US20210237773A1
公开(公告)日：2021-08-05
申请号：US17158090
申请日：2021-01-26
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yosuke HASHIMOTO , Akihiro KATAYAMA , Yuta OSHIRO , Kazuki SUGIE , Naoya OKA
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.
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公开(公告)号：US20210213963A1
公开(公告)日：2021-07-15
申请号：US17136220
申请日：2020-12-29
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yosuke HASHIMOTO , Akihiro KATAYAMA , Yuta OSHIRO , Kazuki SUGIE , Naoya OKA
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.
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公开(公告)号：US20210190204A1
公开(公告)日：2021-06-24
申请号：US17120828
申请日：2020-12-14
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yosuke HASHIMOTO , Akihiro KATAYAMA , Yuta OSHIRO , Kazuki SUGIE , Naoya OKA
Abstract: A CPU sets a gear ratio, which is an action, on the basis of an accelerator operation amount, a vehicle speed, a gradient, a curvature, and a current gear ratio, until a predetermined amount of time elapses. The CPU operates a transmission in accordance with the set gear ratio and obtains a rotation speed NE of a crankshaft at that time. When the predetermined amount of time has elapsed, the CPU updates an action value function by providing a reward in accordance with whether the number of times of switching the rotation speed NE or the gear ratio meets a standard.
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公开(公告)号：US20210114579A1
公开(公告)日：2021-04-22
申请号：US17064034
申请日：2020-10-06
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yosuke HASHIMOTO , Akihiro KATAYAMA , Yuta OSHIRO , Kazuki SUGIE , Naoya OKA
Abstract: An update process updates relationship defining data by inputting, to a predetermined update map, a state of a vehicle obtained by a state obtaining process, a value of an action variable used to operate an electronic device, and a reward corresponding to an operation of an electronic device. A range in which an operation process uses, as the action variable, a value different from a value that maximizes an expected return related to the reward is defined as a return non-maximizing range. In a case in which a degree of deterioration of the vehicle is greater than or equal to a predetermined degree, a changing process changes the return non-maximizing range to a side on which the return non-maximizing range is expanded as compared to a case in which the degree of deterioration is less than the predetermined degree.
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公开(公告)号：US20200300193A1
公开(公告)日：2020-09-24
申请号：US16819363
申请日：2020-03-16
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Harufumi MUTO , Akihiro KATAYAMA , Kohei MORI , Yosuke HASHIMOTO
IPC: F02D41/22 , F02D41/24 , F02M25/08 , F02D41/00 , F02B37/18 , F02M26/13 , F02D13/02 , F01N3/28 , F02D41/14 , F01N11/00
Abstract: An abnormality detection device for an air-fuel ratio sensor is provided. An air-fuel ratio sensor is provided in an exhaust passage. A storage device stores mapping data specifying a mapping. The mapping outputs an abnormality determination variable using first time series data and second time series data as an input. The first time series data is time series data of an excess amount variable in a first predetermined period. The excess amount variable is a variable corresponding to an excess amount of fuel actually discharged to the exhaust passage in relation to an amount of fuel reacting without excess or deficiency with oxygen contained in a fluid discharged to the exhaust passage. The second time series data is time series data of an air-fuel ratio detection variable in a second predetermined period.
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Patent Agency Ranking
公开(公告)号：US20200300156A1
公开(公告)日：2020-09-24
申请号：US16752739
申请日：2020-01-27
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Harufumi MUTO , Akihiro KATAYAMA , Yosuke HASHIMOTO , Junji HYODO
Abstract: To estimate an engine cooling water temperature, four learned neural networks (150A, 150B, 150C, and 150D) are stored, in which weights are learned for the four states of whether the grille shutter (50) is opened and whether air blown by the blower (63) circulates through the air-conditioning use heater (65). The engine cooling water temperature is estimated using any one of the learned neural networks selected from among the four learned neural networks (150A, 150B, 150C, and 150D). An abnormality of the engine cooling water recirculation system is detected based on the estimated value of the engine cooling water temperature.
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公开(公告)号：US20200263594A1
公开(公告)日：2020-08-20
申请号：US16778518
申请日：2020-01-31
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Harufumi MUTO , Haruki OGURI , Akihiro KATAYAMA , Yosuke HASHIMOTO
Abstract: A catalyst deterioration detection device is provided to detect deterioration of a catalyst provided in an exhaust passage of an internal combustion engine. The catalyst deterioration detection device includes a storage device and processing circuitry. The storage device stores map data specifying a mapping that uses time series data of an excess amount variable in a first predetermined period and time series data of a downstream detection variable in a second predetermined period as inputs to output a deterioration level variable. The processing circuitry executes an acquisition process that acquires data, a deterioration level variable calculation process that calculates a deterioration level variable of the catalyst based on an output of the mapping using the data acquired by the acquisition process as an input. The map data includes data that is learned through machine learning.
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公开(公告)号：US20200263592A1
公开(公告)日：2020-08-20
申请号：US16780972
申请日：2020-02-04
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Harufumi MUTO , Akihiro KATAYAMA , Yuki IKEJIRI , Yosuke HASHIMOTO
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.
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公开(公告)号：US20220003142A1
公开(公告)日：2022-01-06
申请号：US17476692
申请日：2021-09-16
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Harufumi MUTO , Haruki OGURI , Akihiro KATAYAMA , Yosuke HASHIMOTO
Abstract: A catalyst deterioration detection device is provided to detect deterioration of a catalyst provided in an exhaust passage of an internal combustion engine. The catalyst deterioration detection device includes a storage device and processing circuitry. The storage device stores map data specifying a mapping that uses time series data of an excess amount variable in a first predetermined period and time series data of a downstream detection variable in a second predetermined period as inputs to output a deterioration level variable. The processing circuitry executes an acquisition process that acquires data, a deterioration level variable calculation process that calculates a deterioration level variable of the catalyst based on an output of the mapping using the data acquired by the acquisition process as an input. The map data includes data that is learned through machine learning.
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公开(公告)号：US20210254571A1
公开(公告)日：2021-08-19
申请号：US17160487
申请日：2021-01-28
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yosuke HASHIMOTO , Akihiro KATAYAMA , Yuta OSHIRO , Kazuki SUGIE , Naoya OKA
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.
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