公开(公告)号：US12230078B2

公开(公告)日：2025-02-18

申请号：US17517411

申请日：2021-11-02

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi Tabata ,  Masafumi Yamamoto ,  Koichi Okuda ,  Yuuki Makino

IPC: B60W40/10 ,  G07C5/08

Abstract: A sound-source search system for searching a sound source that causes a noise propagated inside or outside a cabin of a vehicle. The system includes: a sound-source search device for acquiring sound data by collecting and measuring a sound; an informing device for informing a sound measuring position in which the sound-source search device should be installed for collecting and measuring the sound; and a control device for acquiring a driving information related to a driving state of the vehicle upon generation of the noise. The control device extracts a sound-source candidate that is a candidate of the sound source causing the noise, based on the acquired driving information, and to cause the informing device to inform the sound measuring position that is set based on a predetermined relationship between the sound-source candidate and the sound measuring position. Also disclosed is a sound-source search method using the sound-source search device.

公开(公告)号：US20240401694A1

公开(公告)日：2024-12-05

申请号：US18642250

申请日：2024-04-22

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yusuke SUZUKI ,  Koichi Okuda ,  Atsushi Tabata

IPC: F16H57/04 ,  B60K7/00 ,  B60K17/04 ,  H02K9/193

Abstract: A drive device includes: a first electric motor that drives a left wheel of a vehicle; a second electric motor that drives a right wheel of the vehicle; a first oil pump that supplies oil to the first electric motor via a first oil supply passage; a second oil pump that supplies oil to the second electric motor via a second oil supply passage; a connecting channel that connects the first oil supply passage and the second oil supply passage; and a flow regulating device that is installed in the connecting channel and allows oil to flow in the connecting channel when one of the first oil pump and the second oil pump is abnormal.

公开(公告)号：US12085555B2

公开(公告)日：2024-09-10

申请号：US17369494

申请日：2021-07-07

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi Tabata ,  Ken Imamura ,  Kota Fujii ,  Koichi Okuda

IPC: G01N33/28 ,  F15B19/00 ,  F16H57/04 ,  G01N21/25

CPC classification number: G01N33/2888 ,  F15B19/00 ,  F16H57/0405 ,  G01N21/255 ,  G01N33/2841

Abstract: A deterioration estimation device includes a storage device and an execution device. The storage device is configured to store mapping data defining a mapping that outputs an output variable indicating the degree of deterioration of oil when an input variable is input. The mapping includes, as the input variable, a color variable that is a variable indicating a color of the oil and a hydrogen ion variable that is a variable indicating a hydrogen ion concentration of the oil. The execution device is configured to execute an acquisition process that is a process of acquiring the input variable and a calculation process of inputting the input variable acquired through the acquisition process to the mapping to output a value of the output variable.

公开(公告)号：US12085032B2

公开(公告)日：2024-09-10

申请号：US18434226

申请日：2024-02-06

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi Tabata ,  Koichi Okuda ,  Nobuhiko Satake ,  Daiki Sato

IPC: F02D41/02

CPC classification number: F02D41/0235 ,  F02D2200/0802

Abstract: A controller for an engine includes processing circuitry. The processing circuitry executes an obtaining process that obtains a catalyst temperature, which is a temperature of a catalyst. The processing circuitry executes a setting process that sets a target air-fuel ratio that is a target value of an air-fuel ratio in the cylinder. The temperature of the catalyst at which an efficiency of nitrogen oxide reduction by the catalyst is the highest is referred to as a prescribed temperature. In the setting process, the processing circuitry sets the target air-fuel ratio to be higher when the catalyst temperature is a first value that is lower than the prescribed temperature, than when the catalyst temperature is a second value that is lower than or equal to the prescribed temperature and higher than the first value.

公开(公告)号：US12059957B2

公开(公告)日：2024-08-13

申请号：US17804139

申请日：2022-05-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi Tabata ,  Koichi Okuda ,  Tatsuya Imamura ,  Yohei Habata ,  Koji Takaira

IPC: B60K6/445 ,  B60K6/365 ,  B60K6/547

CPC classification number: B60K6/445 ,  B60K6/365 ,  B60K6/547

Abstract: A vehicle driving apparatus includes: an engine; first and second rotary electric machines; a fluid transmission device including an input-side rotary element to which the engine and the first rotary electric machine are connected; and a control device configured to control an operation point of the engine by adjusting an electrical path amount in an electrical path between the first and second rotary electric machines. When a certain running mode is established, the control device is configured to correct the electrical path amount to an increased electrical path amount while maintaining an power of the engine requested by an operation of a vehicle driver, and to drive the second rotary electric machine, while controlling an output torque of the first rotary electric machine such that the electrical path amount transferred from the first rotary electric machine to the second rotary electric machine becomes the increased electrical path amount.

公开(公告)号：US12026992B2

公开(公告)日：2024-07-02

申请号：US17106895

申请日：2020-11-30

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi Tabata ,  Koichi Okuda ,  Tooru Matsubara ,  Hiromasa Tatsushiro ,  Kota Fujii ,  Yuuki Makino

IPC: F16H57/00 ,  B60R16/023 ,  G06N20/00 ,  G07C5/00 ,  G07C5/08 ,  F16H61/30

CPC classification number: G07C5/0808 ,  B60R16/0234 ,  F16H57/00 ,  G06N20/00 ,  G07C5/006 ,  F16H61/30

Abstract: A vehicle control device performs learning to correct a parameter used in a control program for controlling a vehicle. The vehicle control device stores learning data obtained by the learning in a storage unit. The vehicle control device determines whether or not a part controlled by the parameter has been replaced, and resets the learning data stored in the storage unit when it is determined that the part has been replaced. The vehicle control device determines that the part has been replaced based on an adjustment that is performed upon replacement of the part. The vehicle control device quickly mitigates degradation of the controllability of the vehicle after replacement of the part.

公开(公告)号：US12011994B2

公开(公告)日：2024-06-18

申请号：US18347066

申请日：2023-07-05

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  AISIN CORPORATION

Inventor： Yuto Masuda ,  Yusuke Suzuki ,  Koichi Okuda ,  Toshihisa Mizutani ,  Taiki Owari

IPC: B60K17/16 ,  B60K1/02 ,  B60K7/00 ,  B60K17/04 ,  F16H48/00 ,  F16H48/05 ,  F16H48/08

CPC classification number: B60K17/165 ,  B60K1/02 ,  F16H48/05 ,  F16H2048/02 ,  F16H2048/04 ,  F16H2048/082

Abstract: The driving apparatus comprising a first motor, a first gear mechanism having a first input shaft and a first output shaft connected to the first motor, a second motor, and a second gear mechanism having a second input shaft and a second output shaft connected to the second motor. The first gear mechanism is configured such that the first input shaft and the first output shaft are in an intersecting or twisted position, and the second gear mechanism is configured such that the second input shaft and the second output shaft are in an intersecting or twisted position.

公开(公告)号：US11958471B2

公开(公告)日：2024-04-16

申请号：US17354260

申请日：2021-06-22

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi Tabata ,  Koichi Okuda ,  Koji Takaira ,  Akinori Takahashi ,  Yuuki Makino

IPC: B60K23/08 ,  B60K6/24 ,  B60K6/26 ,  B60K17/02 ,  B60K17/12 ,  B60K17/35 ,  B60K23/00 ,  B60K25/08 ,  B60W20/15 ,  B60K6/543 ,  B60K6/547 ,  F16D28/00

CPC classification number: B60W20/15 ,  B60K6/24 ,  B60K6/26 ,  B60K17/02 ,  B60K17/12 ,  B60K17/35 ,  B60K23/00 ,  B60K25/08 ,  B60K6/543 ,  B60K6/547 ,  B60K23/0808 ,  F16D28/00

Abstract: A four-wheel drive vehicle includes: a drive-power distribution device for distributing a drive power from an engine to main and auxiliary drive wheels with a drive-power distribution ratio between the main drive wheels and auxiliary drive wheels; and a control apparatus for controlling an electric motor such that the drive-power distribution ratio becomes a target distribution ratio value, by setting an electric-current command value for driving an electric motor. The control apparatus is configured, in a drive-power transmitted state in which the drive power is transmitted to the drive-power distribution device, to execute a command-value reduction control operation for causing the electric motor to be driven with the electric-current command value being set to a value smaller than in a drive-power non-transmitted state in which the drive power is not being transmitted to the drive-power distribution device.

公开(公告)号：US11891014B2

公开(公告)日：2024-02-06

申请号：US17164993

申请日：2021-02-02

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Takashi Yuma ,  Atsushi Tabata ,  Koichi Okuda ,  Atsushi Kamada ,  Kazumi Shine

IPC: B60R25/06 ,  B60R25/32 ,  B60W60/00 ,  B60W10/10 ,  B60R25/31 ,  B60W40/08 ,  B60R25/24 ,  B60R25/20

CPC classification number: B60R25/06 ,  B60R25/20 ,  B60R25/24 ,  B60R25/31 ,  B60R25/32 ,  B60W10/10 ,  B60W40/08 ,  B60W60/001 ,  B60W2040/0809 ,  B60W2520/10

Abstract: A vehicle includes a controller. The controller is configured to perform authentication of a portable device by communication with the portable device when startup of a system of the vehicle is instructed, when the system is off, or when the startup of the system of the vehicle is instructed and the system is off. The controller is configured to perform the startup of the system of the vehicle when the startup of the system of the vehicle is instructed, under a condition that the authentication of the portable device is successful. The controller is configured to perform reauthentication of the portable device when predetermined movement of the vehicle is detected after the startup of the system of the vehicle, and perform theft prevention processing when the reauthentication of the portable device fails.

公开(公告)号：US11762655B2

公开(公告)日：2023-09-19

申请号：US17590859

申请日：2022-02-02

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Koichi Okuda ,  Atsushi Tabata ,  Masafumi Yamamoto ,  Yuuki Makino

IPC: G06F8/65 ,  B60W50/00 ,  B60S5/00

CPC classification number: G06F8/66 ,  B60W50/00 ,  B60S5/00 ,  B60W2050/0083 ,  B60W2556/45

Abstract: A vehicle control apparatus including: a storage portion configured to store therein a vehicle control software for controlling a vehicle; a receiving portion configured to receive an update software from an external server; and an updating portion configured to update the vehicle control software stored in the storage portion, to the update software received by the receiving portion. The updating portion is configured to determine whether the vehicle is in a long-time requiring state that requires a long time for making a repair of the vehicle which is needed in case update of the vehicle control software is not successfully completed. The updating portion is configured to execute the update of the vehicle control software when determining that the vehicle is not in the long-time requiring state, and is configured to withhold the update of the vehicle control software when determining that the vehicle is in the long-time requiring state.