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公开(公告)号：US20230311876A1
公开(公告)日：2023-10-05
申请号：US18188570
申请日：2023-03-23
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Koichi OKUDA , Masafumi YAMAMOTO , Yuuki MAKINO , Yoshito SEKIGUCHI
CPC classification number: B60W30/16 , G05D1/0295 , B60W40/13 , G05D2201/0213 , B60W2554/80 , B60W2556/45
Abstract: A vehicle control device connecting platoon participating vehicles to one another via radio communication, to control platooning of the platoon participating vehicles, the platoon participating vehicle includes a leading vehicle and following vehicles that perform automatic follow-up running in line with a predetermined intervehicle distance from the leading vehicle, During execution of the platooning, the vehicle control device acquires, for each of the platoon participating vehicles, information of an estimated value of retardation based on a driven torque generated when coasting solely in its current vehicle state, the vehicle control device controls the driven torque of each of the platoon participating vehicles so that the platoon participating vehicles align in ascending order of the estimated value of retardation increasing rearward in sequence from the leading vehicle.
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2.发明公开公开(公告)号：US20230415724A1
公开(公告)日：2023-12-28
申请号：US18332131
申请日：2023-06-09
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Koichi OKUDA , Masafumi YAMAMOTO , Yoshito SEKIGUCHI , Yuuki MAKINO , Atsushi TABATA
IPC: B60W10/115 , B60W30/165 , G08G1/00
CPC classification number: B60W10/115 , B60W30/165 , G08G1/22 , B60W2510/1005 , B60W2510/1055 , B60W2554/80 , B60W2556/65
Abstract: A vehicle control device for controlling platooning of platoon participating vehicles by connecting the platoon participating vehicles to one another via radio communication, the platoon participating vehicles include a lead vehicle and follow-up vehicles that perform automatic follow-up running in line at a predetermined intervehicle distance from the lead vehicle, the device comprises a control portion that, during execution of the platooning, sets a permissible output range of a drive amount with a current gear ratio of an automatic transmission remaining kept, as a change characteristic of the drive amount in each of the platoon participating vehicles so that change of the drive amount in response to change of a drive demand amount lies within a predetermined range, the automatic transmission being included in each of the platoon participating vehicles to transmit power of a power source to driving wheels.
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公开(公告)号：US20230341036A1
公开(公告)日：2023-10-26
申请号：US18302094
申请日：2023-04-18
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Koichi OKUDA , Masafumi YAMAMOTO , Yoshito SEKIGUCHI , Yuuki MAKINO
IPC: F16H45/02
CPC classification number: F16H45/02 , B60W30/165
Abstract: A control apparatus for a vehicle provided with a power source and a fluid transmission device that includes a lockup clutch. The control apparatus includes: (a) a follow-up-running control portion for controlling a follow-up running in which the vehicle automatically runs following a preceding vehicle with a predetermined inter-vehicle distance to the preceding vehicle; and (b) a lockup-clutch control portion for controlling the lockup clutch such that an operation state of the lockup clutch is placed in one of a released state, a slipping state or an engaged state. The lockup-clutch control portion is configured, during the follow-up running, to execute a fluid-temperature increase suppressing control for controlling the operation state of the lockup clutch in a manner that suppresses increase of a temperature of a working fluid which circulates in the fluid transmission device and which is used to switch the operation state of the lockup clutch.
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公开(公告)号：US20220194383A1
公开(公告)日：2022-06-23
申请号：US17517340
申请日：2021-11-02
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Atsushi TABATA , Masafumi YAMAMOTO , Koichi OKUDA , Yuuki MAKINO
Abstract: A sound-source-candidate extraction system for extracting a candidate of a sound source that causes a noise propagated inside or outside a cabin of a vehicle. The sound-source-candidate extraction system includes: (a) an imaging device configured to acquire data of an image inside or outside the cabin of the vehicle; and (b) an extracting device configured to extract the candidate of the sound source, depending on a difference between first and second image data acquired by the imaging device, wherein the first image data is the data of the image before generation of the noise, and the second image data is the data of the image upon or after the generation of the noise. Also disclosed is a sound-source search method using the sound-source-candidate extraction system.
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公开(公告)号：US20230252901A1
公开(公告)日：2023-08-10
申请号：US18161150
申请日：2023-01-30
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Koichi OKUDA , Masafumi YAMAMOTO , Yoshito SEKIGUCHI , Yuuki MAKINO , Atsushi TABATA
CPC classification number: G08G1/22 , B60W60/0025 , B60W10/10 , B60W2510/10
Abstract: A platooning system executes automatic follow-up running in line with a predetermined intervehicle distance between adjacent vehicles from a leading vehicle, the platoon participating vehicles each comprising a driving force source, an automatic transmission capable of shifting to a plurality of gear stages each having a different gear ratio, and an in-vehicle control device automatically controlling output of the driving force source and the gear stages of the automatic transmission, the platooning system comprising a platoon control device connected via wireless communication to the platoon participating vehicles, for managing at least shifting of the automatic transmission, the platoon control device executing platoon shift control that shifts the automatic transmission via the in-vehicle control device in order from vehicles on tail side among the platoon participating vehicles in case of satisfying shift conditions previously defined to allow the driving force source to work in a proper working range.
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Patent Agency Ranking
公开(公告)号：US20220388493A1
公开(公告)日：2022-12-08
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
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.
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公开(公告)号：US20220207934A1
公开(公告)日：2022-06-30
申请号：US17562189
申请日：2021-12-27
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Atsushi TABATA , Masafumi YAMAMOTO , Koichi OKUDA , Yuuki MAKINO
IPC: G07C5/08
Abstract: A particular-driving-operation identification system for identifying whether a failure or a durability reduction of a component installed in a vehicle has been caused by a driving operation of an occupant of the vehicle or not. The system includes a particular-driving-operation identification portion configured to determine whether there has been a particular driving operation that is the driving operation likely to cause the failure or the durability reduction of the component, based on a driving-operation data. When determining that there has been the particular driving operation in a case in which the failure or the durability reduction of the component has been caused, the particular-driving-operation identification portion identifies, based on a vehicle-state data related to the vehicle state, whether the failure or the durability reduction of the component has been caused by the particular driving operation or not depending on the vehicle state when the particular driving operation has been executed.
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公开(公告)号：US20210174614A1
公开(公告)日：2021-06-10
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
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.
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公开(公告)号：US20220198845A1
公开(公告)日：2022-06-23
申请号：US17517411
申请日：2021-11-02
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Atsushi TABATA , Masafumi YAMAMOTO , Koichi OKUDA , Yuuki MAKINO
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.
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公开(公告)号：US20210394739A1
公开(公告)日：2021-12-23
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
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.
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