公开(公告)号：US20200208736A1

公开(公告)日：2020-07-02

申请号：US16673171

申请日：2019-11-04

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kota Fujii ,  Atsushi Tabata ,  Tetsuya Kono ,  Koichi Okuda

IPC: F16H61/02 ,  F16H59/38 ,  F16H61/68 ,  B60K23/00

Abstract: While automatic driving control is being performed, traveling in a driving state of a vehicle corresponding to an unconverged region (including an unperformed region and a performed region) is preferentially selected between the traveling in the driving state of the vehicle corresponding to the unconverged region, and traveling in the driving state of the vehicle corresponding to a converged region. As such, learning control that corrects an amount of operation associated with control of the vehicle is performed more easily throughout the entire learning regions regardless of a usage state of the vehicle by a driver. Therefore, it is possible to achieve an appropriate traveling state at an early stage by the learning control that corrects the amount of operation associated with control of the vehicle.

公开(公告)号：US12233710B2

公开(公告)日：2025-02-25

申请号：US18581569

申请日：2024-02-20

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masataka Iwamoto ,  Koichi Okuda ,  Atsushi Tabata

IPC: B60K17/04 ,  B60K7/00 ,  F16H1/20 ,  F16H57/04

Abstract: The drive device comprises first and second motors comprising respective first and second rotary shafts. The drive device comprises first and second counter shafts connected to each of the first and second rotary shafts via first and second counter gears. The drive device comprises first and second transmission shafts connected to each of the first and second counter shafts via third and fourth counter gears. The drive device comprises first and second drive shafts connected to each of the first and second transmission shafts via first and second hypoid gears. The first and second rotary shafts are located between the first and second counter shafts with respect to the vehicle width direction. The first and second transmission shafts are located between the first and second counter shafts in the vehicle width direction.

公开(公告)号：US12122241B2

公开(公告)日：2024-10-22

申请号：US17804197

申请日：2022-05-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi Tabata ,  Koichi Okuda ,  Koji Takaira ,  Yuuki Makino ,  Akinori Homan ,  Yosuke Akiyama ,  Akira Ijichi ,  Kunihiko Usui

IPC: B60K6/52 ,  B60W10/06 ,  B60W10/08 ,  B60W10/119 ,  B60W20/13 ,  B60W20/15

CPC classification number: B60K6/52 ,  B60W10/06 ,  B60W10/08 ,  B60W10/119 ,  B60W20/13 ,  B60W20/15 ,  B60W2510/244

Abstract: A vehicle driving apparatus includes: an engine; a first rotary electric machine; first and second output shafts; a power distribution device for distributing a power between the first and second output shafts; and a control device for controlling an electric-power generation torque of a second rotary electric machine such that a power distribution ratio between the first and second output shafts becomes a target distribution ratio, and controlling a total torque of the engine and the first rotary electric machine such that a requested drive torque is obtained. The control device executes an electric-power consuming control to supply at least a part of a generated electric power generated by the second rotary electric machine, to the first rotary electric machine without via a power storage device, and to drive the first rotary electric machine, such that an operation state of the engine is brought close to a fuel-economy optimum state.

公开(公告)号：US12014585B2

公开(公告)日：2024-06-18

申请号：US17490811

申请日：2021-09-30

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi Tabata ,  Ken Imamura ,  Koichi Okuda ,  Masato Nakano ,  Toshiaki Tamachi

IPC: G07C5/08 ,  G01M13/028

CPC classification number: G07C5/0808 ,  G01M13/028 ,  G07C5/085

Abstract: An unusual-noise determination device for a vehicle that performs unusual-noise determination to determine whether a power transmission system of the vehicle is generating unusual noise. The unusual-noise determination device includes an execution device and a memory device. The memory device stores a neural network that uses the maximum sound pressure and the excess ratio as inputs, and outputs a determination result variable, which is a variable indicating a result of the unusual-noise determination. The neural network is a trained neural network that has been trained using various values related to each of multiple vehicles as training data. The execution device is configured to perform the unusual-noise determination based on an output of the trained neural network that uses, as inputs, the maximum sound pressure and the excess ratio.

公开(公告)号：US11959545B2

公开(公告)日：2024-04-16

申请号：US17329644

申请日：2021-05-25

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hideaki Bunazawa ,  Atsushi Tabata ,  Koichi Okuda ,  Ken Imamura ,  Kota Fujii ,  Keita Sasaki

IPC: F16H59/42 ,  F16H61/02 ,  G06N20/00 ,  F16H59/18 ,  F16H61/00 ,  F16H61/04

CPC classification number: F16H59/42 ,  F16H61/0213 ,  G06N20/00 ,  F16H59/18 ,  F16H2061/0087 ,  F16H2061/009 ,  F16H2061/0096 ,  F16H2061/0459

Abstract: A vehicle control device includes a processor and memory. The memory stores relation-defining data for defining a relation between a state of a vehicle and an action variable that is a variable relating to operations of a transmission installed in the vehicle. The processor is configured to execute acquisition processing, operation processing, reward calculation processing, updating processing, counting processing, and limiting processing. The processor is configured to output the relation-defining data updated so that an expected income is increased when the transmission is operated following the relation-defining data, based on an updating map.

公开(公告)号：US11945438B2

公开(公告)日：2024-04-02

申请号：US18332089

申请日：2023-06-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Koichi Okuda ,  Masafumi Yamamoto ,  Yoshito Sekiguchi ,  Yuuki Makino

IPC: B60W30/16 ,  B60W10/04 ,  B60W10/10 ,  B60W50/00

CPC classification number: B60W30/16 ,  B60W10/04 ,  B60W10/10 ,  B60W50/0098 ,  B60W2552/00 ,  B60W2554/404 ,  B60W2554/80 ,  B60W2710/10

Abstract: A vehicle control apparatus includes: a follow-up-running control portion configured to execute a follow-up running control for causing a vehicle to run following a preceding vehicle with a target inter-vehicle distance; and a shift control portion configured to change a gear ratio of an automatic transmission in accordance with a predetermined shifting condition. The shift control portion is configured to set a high fluid-temperature determination value, based on information relating to the preceding vehicle that affects an air flow rate. When a fluid temperature of the automatic transmission is not lower than the high fluid-temperature determination value, the shift control portion is configured to change the shifting condition such that a higher-speed gear position making the gear ratio lower is more frequently established in the automatic transmission than when the fluid temperature of the automatic transmission is lower than the high fluid-temperature determination value.

公开(公告)号：US11766928B2

公开(公告)日：2023-09-26

申请号：US17807018

申请日：2022-06-15

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Koji Takaira ,  Yohei Habata ,  Atsushi Tabata ,  Koichi Okuda ,  Masato Nakano

IPC: B60K6/52 ,  B60K6/445 ,  B60K6/547 ,  B60W10/08 ,  B60W10/115 ,  B60W20/30 ,  B60W10/119 ,  B60W20/15

CPC classification number: B60K6/52 ,  B60K6/445 ,  B60K6/547 ,  B60W10/08 ,  B60W10/115 ,  B60W10/119 ,  B60W20/15 ,  B60W20/30 ,  B60W2510/0604 ,  B60W2510/10 ,  B60W2520/10 ,  B60W2540/10 ,  B60W2710/0677 ,  B60W2710/086 ,  B60W2710/1005

Abstract: A vehicle driving apparatus includes: an engine; a fluid transmission device; first and second rotary electric machines; an output shaft for receiving a power transmitted through a first power transmission path and outputting the power to one of a pair of front wheels and a pair of rear wheels; and a control device for controlling an engine operation point by adjusting an electrical path amount between the first and second rotary electric machines. The second rotary electric machine outputs the power to the other of the pair of front wheels and the pair of rear wheels, through a second power transmission path. The control device obtains a target electrical path amount enabling the engine operation point to become a target operation point, and causes a speed change device provided in the second power transmission path to establish a gear ratio enabling the target electrical path amount to be attainable.

公开(公告)号：US11702063B2

公开(公告)日：2023-07-18

申请号：US16925280

申请日：2020-07-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi Tabata ,  Koichi Okuda ,  Tooru Matsubara ,  Yasuhiro Hiasa ,  Yasutaka Tsuchida

IPC: B60W20/30 ,  G01P3/08 ,  B60W20/15

CPC classification number: B60W20/30 ,  B60W20/15 ,  G01P3/08

Abstract: Since a maximum rotation speed of a second rotary machine is set to a lower value when a supercharging pressure is high than when the supercharging pressure is low, an engine torque decreases with an rotation speed of the second rotary machine which is relatively low and the rotation speed is less likely to fall into a high-rotation state. When the supercharging pressure is relatively low and the rotation speed is less likely to reach an upper-limit rotation speed of the second rotary machine, the maximum rotation speed is set to a relatively high value. Accordingly, the engine torque does not decrease to the rotation speed which is relatively high and power performance can be easily secured. As a result, it is possible to prevent a decrease in power performance due to the decrease in the engine torque and to prevent the rotation speed from falling into a high-rotation state.

公开(公告)号：US11694492B2

公开(公告)日：2023-07-04

申请号：US17066575

申请日：2020-10-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kenji Miyasaka ,  Atsushi Tabata ,  Takeshi Kitahata ,  Koichi Okuda

IPC: G07C5/08 ,  G06N20/00

CPC classification number: G07C5/0816 ,  G06N20/00 ,  G07C5/0808

Abstract: A cause for a malfunction in a vehicle is identified using a preset malfunction cause identifying model indicating a relation between the cause for the malfunction identified based on a detection value of an experimental vehicle sensor such as an oil pressure sensor, which is a detection value allowing the cause for the malfunction to be identified more easily than a detection value of an in-vehicle sensor group that is the same as an in-vehicle sensor group equipped in the vehicle, and the detection value of the in-vehicle sensor group, and the detection value of the in-vehicle sensor group when the malfunction has occurred in the vehicle. Therefore, in the case where the vehicle is not equipped with the experimental vehicle sensor, it is possible to improve the accuracy of the identification of the cause for the malfunction in the vehicle.

公开(公告)号：US11631282B2

公开(公告)日：2023-04-18

申请号：US17036593

申请日：2020-09-29

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi Tabata ,  Koichi Okuda ,  Masafumi Yamamoto ,  Yoshito Sekiguchi

IPC: G07C5/00 ,  G07C5/02

Abstract: An apparatus for estimating a remaining life of a vehicle component included in a vehicle, based on various kinds of remaining-life-related data that influence the remaining life. The apparatus includes: a data transmitting portion provided in the vehicle, and configured to correlate the remaining-life-related data with running of the vehicle and to transmit the remaining-life-related data correlated with the running of the vehicle, to a data management center provided outside the vehicle, via a wireless communication; a data-unobtained running-section specifying portion configured to specify a data-unobtained running section in which the remaining-life-related data has been unobtainable by the data management center; and a remaining-life calculating portion configured to estimate the remaining life, by taking account of a reduction of the remaining life of the vehicle component in the data-unobtained running section.