Toyota Jidosha Kabushiki Kaisha

Akihiro Katayama

Naoya Oka

Kazuki Sugie

Yuta Oshiro

Yosuke Hashimoto

Yohsuke Hashimoto

Harufumi Muto

Yuki Ikejiri

Naoto Kato

Toshinari Nagai

Takuya Matsumoto

Isao Nakajima

Masashi Hakariya

Takumi Anzawa

Shinji Kojima

Naoki Baba

Junichi Kako

Yoshihisa Oda

Akira Kamoto

Hiroshi Sawada

Naohide Fuwa

Takahiro Uchida

Tokiji Ito

Kazuyuki Noda

Haruki Oguri

Ryo Suzuki

Yasuhiro Kuze

Yuya Yoshikawa

Sohichi Imai

Naoya Okubo

Satoshi Takamoto

Masahide Okada

Eiichiro Kido

Shinichi Nakagoshi

Kentaro Matsumoto

Yuichi Kohara

Leuth Insixiengmai

Kohei Mori

Kazunori Kojima

Kiyotaka Kushihama

Tatsunobu Murai

Sei Maruta

Kazuhiro Akisada

Hitoshi Tanaka

Shota Kitano

Katsumi Adachi

Kenji Kimura

Shuntaro Okazaki

Takahiro Nishigaki

Osamu Harada

Satoru Watanabe

Keisuke Nagakura

Hidemi Ohnaka

Hideki Miyahara

Hikokazu Akimoto

Yoshifumi Matsuda

Hiroaki Tsuji

Kazuki Tsuruoka

Yukio Kuroda

Junji Hyodo

Ryo Kondo

Kenichiro Kumada

Shiro Yano

Naoto Katoh

Masanobu Kanamura

Hirotaka Nakayama

Shinji Kabushiki K Toyota Chuo Kenkyusho Kojima

Naoki Kabushiki K Toyota Chuo Kenkyusho Baba

Until a specified condition is met, a processing circuitry of an adaptation system executes a first trial and a second trial in each execution of a learning routine, reflects, in a control map, a change in the trial with a larger reward, and ends the learning routine (first process). After the specified condition is met, the processing circuitry executes the first trial and the second trial multiple times in each learning routine, compares the reward for the multiple executions of the first trial with the reward for the multiple executions of the second trial, and reflects, in a control map, a change in the trial with the larger reward, and ends the learning routine (second process).

Adaptation system and adaptation method

A setting unit which is connected to an intake passage and defines a reference value for a pressure in a passage through which gas flows, an accumulating unit which integrates a difference between the reference value and the pressure from a point in time when the pressure falls below the reference value and acquires an cumulative value, and a diagnosis unit which diagnoses an abnormality of the passage based on the cumulative value, wherein when there is no peak in the pressure, the setting unit sets the reference value based on a state of the internal combustion engine, and when there is a peak in the pressure, the setting unit sets the peak as the reference value in the abnormality diagnosis device.

Abnormality diagnosis device for internal combustion engine

An electronic control unit is used for an internal combustion engine that executes a specific-cylinder fuel cutoff process in which combustion in part of cylinders is stopped and combustion is continued in the remaining cylinders. The electronic control unit diagnoses whether there is a misfire anomaly in the internal combustion engine based on a misfire frequency of the internal combustion engine. The electronic control unit executes a normality restoration diagnosing process of diagnosing, in a state in which it is diagnosed that there is a misfire anomaly, that the misfire anomaly has been resolved when a measured value of the misfire frequency becomes less than or equal to a specified normality restoration determination value. The normality restoration diagnosing process is configured to not diagnose, during the execution of the specific-cylinder fuel cutoff process, that the misfire anomaly has been eliminated.

Diagnosing apparatus and diagnosing method for internal combustion engine

An ECM executes a catalyst early activation control at the cold start of an engine such that the activation of a catalyzer is promoted by opening a WGV. Further, the ECM performs a diagnosis process of diagnosing whether or not the WGV is stuck closed, based on the amplitude of the output fluctuation in an air-fuel-ratio sensor during execution of the catalyst early activation control.

Engine control device

A vehicle controller is used for a first vehicle and includes processing circuitry. The processing circuitry is configured to execute an index deriving process that derives a traveling performance index of the first vehicle, the traveling performance index being an index related to a traveling performance, an index receiving process that receives the traveling performance index of a second vehicle from the second vehicle through vehicle-to-vehicle communication, and a performance determination process that compares the traveling performance index of the second vehicle with the traveling performance index of the first vehicle to determine whether a traveling performance of the first vehicle is lower than a traveling performance of the second vehicle.

Vehicle controller, vehicle control method, and non-transitory computer readable medium storing vehicle control program

A vehicle control data generation method is provided. A preference variable indicates a relative preference of a user for two or more requested elements that include at least two of three requested elements including a requested element indicating a high acceleration response of a vehicle, a requested element indicating at least one of vibration and noise of the vehicle is small, and a requested element indicating a high energy use efficiency. The reward calculating process includes a changing process that changes a reward provided when a characteristic of the vehicle is a predetermined characteristic in a case where a value of the preference variable is a second value such that the changed reward differs from the reward provided when the characteristic is the predetermined characteristic in a case where the value of the preference variable is a first value.

Vehicle control data generation method, vehicle controller, vehicle control system, vehicle learning device, vehicle control data generation device, and memory medium

An ECM executes a catalyst early activation control at cold start of an engine such that the activation of a catalyzer is promoted by opening a WGV. Further, the ECM performs a diagnosis process of, during execution of the catalyst early activation control, repeating opening and closing of the WGV with a given period and diagnosing whether or not the WGV is stuck, based on whether or not a fluctuation component with the same period as the period of the opening and closing of the WGV is included in output from an intake manifold pressure sensor during the repetition.

Catalyst early activation control at cold engine start

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.

Method for generating vehicle controlling data, vehicle controller, vehicle control system, and learning device for vehicle

An abnormality diagnosis apparatus performs a stop process for stopping the supply of fuel to at least one of a plurality of cylinders and supplying fuel to the other cylinders or cylinder. The abnormality diagnosis apparatus performs a catalyst abnormality diagnosis process for diagnosing that there is an abnormality in an exhaust gas control apparatus, based on the value of a first misfire counter indicating the number of times of detection of a misfire during the operation of an internal combustion engine by a prescribed amount. In the catalyst abnormality diagnosis process, the abnormality diagnosis apparatus diagnoses that there is an abnormality in the exhaust gas control apparatus with the value of the first misfire counter being smaller when the stop process is performed than when the stop process is not performed during the operation of the internal combustion engine by the prescribed amount.

Abnormality diagnosis apparatus for internal combustion engine

An engine controller includes processing circuitry configured to execute catalyst accelerated activation control by performing a first process that maintains an open degree of a wastegate valve at a specified first open degree and then performing a second process that changes the open degree of the wastegate valve to an open degree that differs from the first open degree.

Engine controller and method for controlling engine

A vehicle control system includes a memory, a first processor mounted in a vehicle, and a second processor different from an in-vehicle device. The first processor and the second processor are configured to execute acquisition processing, operation processing, reward calculation processing, and update processing. The first processor is configured to execute at least the acquisition processing and the operation processing, and the second processor is configured to execute the update processing.

Vehicle control system, vehicle control device, and control method for a vehicle

A vehicle control data generation method is provided. A self-driving mode of a vehicle automatically generates a command value of a propelling force produced by a propelling force generator independently of an accelerator operation. An execution device provides a greater reward based on an obtained state of the vehicle when a standard of a characteristic of the vehicle is met than when the standard is not met. Providing the reward changes a reward that is provided when the characteristic of the vehicle is a predetermined characteristic in the self-driving mode such that the changed reward differs from a reward that is provided when the characteristic of the vehicle is the predetermined characteristic in a manual driving mode.

A method of generating vehicle control data includes: storing, with a storage device, relationship prescription data; operating, with an execution device, an operable portion of an internal combustion engine; acquiring, with the execution device, a detection value from a sensor that detects the state of the vehicle; calculating, with the execution device, a reward; and updating, with the execution device, the relationship prescription data using update mapping determined in advance, the update mapping using the state of the vehicle based on the detection value, an operation amount used to operate the operable portion, and the reward corresponding to the operation as arguments, and returning the relationship prescription data which have been updated such that an expected profit for the reward calculated when the operable portion is operated in accordance with the relationship prescription data increases.

Method of generating vehicle control data, vehicle control device, and vehicle control system

Provided is a method of generating vehicle control data. The method is applied to a vehicle configured to select one of a plurality of traveling control modes and is executed by a processor in a state in which relationship definition data defining a relationship between a state of the vehicle and an action variable as a variable relating to an operation of electronic equipment in the vehicle is stored in a memory. The method includes operation processing for operating the electronic equipment, acquisition processing for acquiring a detection value of a sensor configured to detect the state of the vehicle, reward calculation processing for providing reward, and update processing for updating the relationship definition data.

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.

Vehicle control data generation method, vehicle controller, vehicle control system, and vehicle learning device

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Toyota, Japan

Akihiro Katayama