JP2021046080A - タイヤ物理情報推定システム - Google Patents
タイヤ物理情報推定システム Download PDFInfo
- Publication number
- JP2021046080A JP2021046080A JP2019169563A JP2019169563A JP2021046080A JP 2021046080 A JP2021046080 A JP 2021046080A JP 2019169563 A JP2019169563 A JP 2019169563A JP 2019169563 A JP2019169563 A JP 2019169563A JP 2021046080 A JP2021046080 A JP 2021046080A
- Authority
- JP
- Japan
- Prior art keywords
- tire
- physical information
- data
- information estimation
- calculation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06N3/00—Computing arrangements based on biological models
- G06N3/02—Neural networks
- G06N3/08—Learning methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
- B60C23/0433—Radio signals
- B60C23/0447—Wheel or tyre mounted circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0479—Communicating with external units being not part of the vehicle, e.g. tools for diagnostic, mobile phones, electronic keys or service stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0486—Signalling devices actuated by tyre pressure mounted on the wheel or tyre comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors
- B60C23/0488—Movement sensor, e.g. for sensing angular speed, acceleration or centripetal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/06—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle
- B60C23/064—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle comprising tyre mounted deformation sensors, e.g. to determine road contact area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/20—Devices for measuring or signalling tyre temperature only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/02—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to ambient conditions
- B60W40/06—Road conditions
- B60W40/068—Road friction coefficient
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06N3/00—Computing arrangements based on biological models
- G06N3/02—Neural networks
- G06N3/04—Architecture, e.g. interconnection topology
- G06N3/045—Combinations of networks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/04—Tyres specially adapted for particular applications for road vehicles, e.g. passenger cars
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Theoretical Computer Science (AREA)
- Evolutionary Computation (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Biophysics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Computing Systems (AREA)
- Computational Linguistics (AREA)
- Biomedical Technology (AREA)
- Artificial Intelligence (AREA)
- Software Systems (AREA)
- Data Mining & Analysis (AREA)
- Health & Medical Sciences (AREA)
- Computer Hardware Design (AREA)
- Geometry (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Tires In General (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
Description
図1は、実施形態に係るタイヤ物理情報推定システム100の概要を説明するための模式図である。タイヤ物理情報推定システム100は、タイヤ10に配設されたセンサ20およびタイヤ物理情報推定装置30を備える。また、タイヤ物理情報推定システム100は、タイヤ物理情報推定装置30で推定したタイヤ力Fや路面摩擦係数等のタイヤ物理情報を通信ネットワーク91を介して取得して蓄積し、タイヤ物理情報を監視するためのサーバ装置40などを含んでもよい。
尚、窓関数は、タイヤ10の1回転分よりも短い時間区間または長い時間区間における入力データを切り出すようにしてもよく、少なくとも切り出した入力データに周期的な情報が含まれていれば演算モデル32aの学習が可能である。
図10は変形例に係るタイヤ物理情報推定システム100の機能構成を示すブロック図である。図10に示す変形例では演算モデル32aへ入力するデータを車両制御装置90から取得する。尚、車両制御装置90からのデータと、センサ20からのデータ(図2参照)の両方を演算モデル32aへ入力するデータとして用いることもできる。
実施形態に係るタイヤ物理情報推定システム100は、物理情報推定部32、データ取得部31を備える。物理情報推定部32は、タイヤ10の運動によって生じるタイヤ10に関する物理情報を推定すべく入力層50から出力層54に至る学習型の演算モデル32aを有する。データ取得部31は、入力層50への入力データを取得する。演算モデル32aは、入力層50から出力層54へ向けての途中演算において畳み込み演算51aを実行して特徴量を抽出する特徴抽出部51を有する。これにより、タイヤ物理情報推定システム100は、タイヤ力Fおよび路面摩擦係数等のタイヤ物理情報をリアルタイムで推定することができる。
32a 演算モデル、 50 入力層、 51 特徴抽出部、
51a 畳み込み演算、 51b プーリング演算、 54 出力層、
100 タイヤ物理情報推定システム。
Claims (6)
- タイヤの運動によって生じるタイヤに関する物理情報を推定すべく入力層から出力層に至る学習型の演算モデルを有する物理情報推定部と、
前記入力層への入力データを取得するデータ取得部と、を備え、
前記演算モデルは、前記入力層から前記出力層へ向けての途中演算において畳み込み演算を実行して特徴量を抽出する特徴抽出部を有することを特徴とするタイヤ物理情報推定システム。 - 前記特徴抽出部は、畳み込み演算に加えてプーリング演算を実行することを特徴とする請求項1に記載のタイヤ物理情報推定システム。
- 前記入力データは、タイヤにおいて計測される加速度データを含むことを特徴とする請求項1または2に記載のタイヤ物理情報推定システム。
- 前記入力データは、タイヤを取り付けた車両における加速度データを含むことを特徴とする請求項1または2に記載のタイヤ物理情報推定システム。
- 前記物理情報は、タイヤに生じるタイヤ力であることを特徴とする請求項1から4のいずれか1項に記載のタイヤ物理情報推定システム。
- 前記物理情報は、タイヤと路面との間における路面摩擦係数情報であることを特徴とする請求項1から4のいずれか1項に記載のタイヤ物理情報推定システム。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019169563A JP6772351B1 (ja) | 2019-09-18 | 2019-09-18 | タイヤ物理情報推定システム |
CN202080032859.4A CN113785296A (zh) | 2019-09-18 | 2020-08-31 | 轮胎物理信息推测系统 |
PCT/JP2020/032923 WO2021054104A1 (ja) | 2019-09-18 | 2020-08-31 | タイヤ物理情報推定システム |
DE112020004465.3T DE112020004465T5 (de) | 2019-09-18 | 2020-08-31 | System zum Schätzen physikalischer Reifeninformationen |
JP2020164671A JP7356958B2 (ja) | 2019-09-18 | 2020-09-30 | タイヤ物理情報推定システムおよびタイヤ物理情報推定方法 |
US17/698,255 US20220274452A1 (en) | 2019-09-18 | 2022-03-18 | Tire physical information estimation system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019169563A JP6772351B1 (ja) | 2019-09-18 | 2019-09-18 | タイヤ物理情報推定システム |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020164671A Division JP7356958B2 (ja) | 2019-09-18 | 2020-09-30 | タイヤ物理情報推定システムおよびタイヤ物理情報推定方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP6772351B1 JP6772351B1 (ja) | 2020-10-21 |
JP2021046080A true JP2021046080A (ja) | 2021-03-25 |
Family
ID=72829236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019169563A Active JP6772351B1 (ja) | 2019-09-18 | 2019-09-18 | タイヤ物理情報推定システム |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220274452A1 (ja) |
JP (1) | JP6772351B1 (ja) |
CN (1) | CN113785296A (ja) |
DE (1) | DE112020004465T5 (ja) |
WO (1) | WO2021054104A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4169795A1 (en) | 2021-10-19 | 2023-04-26 | Toyo Tire Corporation | Tire physical information estimation system and arithmetic operation model generation system |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7194066B2 (ja) * | 2019-03-29 | 2022-12-21 | Toyo Tire株式会社 | 演算モデル生成システム、摩耗量推定システムおよび演算モデル生成方法 |
KR20220086386A (ko) * | 2020-12-16 | 2022-06-23 | 현대자동차주식회사 | 머신 러닝을 이용한 타이어 마모 예측 방법 및 장치 |
CN115711752B (zh) * | 2022-11-04 | 2024-08-02 | 肇庆小鹏新能源投资有限公司 | 轮胎磨损检测方法、装置、车辆及计算机可读存储介质 |
EP4368418A1 (en) * | 2022-11-10 | 2024-05-15 | Toyo Tire Corporation | Sensor failure determination apparatus, sensor failure determination method, and tire physical information estimation |
EP4431307A1 (en) * | 2023-03-15 | 2024-09-18 | Toyo Tire Corporation | Tire assembly and tire force estimation system |
CN116499420B (zh) * | 2023-05-23 | 2023-10-17 | 清华大学 | 一种半挂车与牵引车之间的夹角的测量方法及系统 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004522953A (ja) * | 2001-01-26 | 2004-07-29 | ブリヂストン/フアイヤーストーン・ノース・アメリカン・タイヤ・エルエルシー | タイヤ摩耗試験方法 |
KR101228291B1 (ko) * | 2011-02-16 | 2013-01-31 | 주식회사 만도 | 인텔리전트 타이어 모니터링 시스템 |
US9739689B2 (en) * | 2014-11-21 | 2017-08-22 | The Goodyear Tire & Rubber Company | Tire cornering stiffness estimation system and method |
JP2018073393A (ja) * | 2016-09-12 | 2018-05-10 | ダッソー システムズDassault Systemes | 深度マップからの現実の物体の3d再構築 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6550320B1 (en) * | 2000-05-31 | 2003-04-22 | Continental Ag | System and method for predicting tire forces using tire deformation sensors |
US11334092B2 (en) * | 2011-07-06 | 2022-05-17 | Peloton Technology, Inc. | Devices, systems, and methods for transmitting vehicle data |
CN109901572B (zh) * | 2018-12-13 | 2022-06-28 | 华为技术有限公司 | 自动驾驶方法、训练方法及相关装置 |
CN109872415B (zh) * | 2018-12-28 | 2021-02-02 | 北京理工大学 | 一种基于神经网络的车速估计方法及系统 |
CN109901574B (zh) * | 2019-01-28 | 2021-08-13 | 华为技术有限公司 | 自动驾驶方法及装置 |
-
2019
- 2019-09-18 JP JP2019169563A patent/JP6772351B1/ja active Active
-
2020
- 2020-08-31 WO PCT/JP2020/032923 patent/WO2021054104A1/ja active Application Filing
- 2020-08-31 CN CN202080032859.4A patent/CN113785296A/zh active Pending
- 2020-08-31 DE DE112020004465.3T patent/DE112020004465T5/de active Pending
-
2022
- 2022-03-18 US US17/698,255 patent/US20220274452A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004522953A (ja) * | 2001-01-26 | 2004-07-29 | ブリヂストン/フアイヤーストーン・ノース・アメリカン・タイヤ・エルエルシー | タイヤ摩耗試験方法 |
KR101228291B1 (ko) * | 2011-02-16 | 2013-01-31 | 주식회사 만도 | 인텔리전트 타이어 모니터링 시스템 |
US9739689B2 (en) * | 2014-11-21 | 2017-08-22 | The Goodyear Tire & Rubber Company | Tire cornering stiffness estimation system and method |
JP2018073393A (ja) * | 2016-09-12 | 2018-05-10 | ダッソー システムズDassault Systemes | 深度マップからの現実の物体の3d再構築 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4169795A1 (en) | 2021-10-19 | 2023-04-26 | Toyo Tire Corporation | Tire physical information estimation system and arithmetic operation model generation system |
Also Published As
Publication number | Publication date |
---|---|
US20220274452A1 (en) | 2022-09-01 |
JP6772351B1 (ja) | 2020-10-21 |
CN113785296A (zh) | 2021-12-10 |
DE112020004465T5 (de) | 2022-06-15 |
WO2021054104A1 (ja) | 2021-03-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6772351B1 (ja) | タイヤ物理情報推定システム | |
JP6790142B2 (ja) | タイヤ力推定システムおよびタイヤ力推定方法 | |
EP3023761B1 (en) | Tire cornering stiffness estimation system and method | |
EP3115765B1 (en) | Tire sensor-based vehicle state estimation system and method | |
JP6736652B2 (ja) | 演算モデル生成システムおよび演算モデル生成方法 | |
WO2021111942A1 (ja) | 最大摩擦係数推定システムおよび最大摩擦係数推定方法 | |
US20230123850A1 (en) | Tire physical information estimation system and arithmetic operation model generation system | |
JP2021047185A (ja) | タイヤ物理情報推定システムおよびタイヤ物理情報推定方法 | |
JP2005530649A (ja) | タイヤビードの応力を測定して最大グリップ係数を測定する方法 | |
JP7368181B2 (ja) | 摩耗量推定システムおよび演算モデル生成システム | |
JP7341875B2 (ja) | タイヤ力表示システムおよびタイヤ力表示方法 | |
JP2023061097A (ja) | タイヤ物理情報推定システムおよびタイヤ物理情報推定方法 | |
WO2021111943A1 (ja) | 走行支援システムおよび走行支援方法 | |
JP7469868B2 (ja) | 制動距離予測システムおよび制動距離予測方法 | |
JP2023096658A (ja) | タイヤ物理情報推定システム、演算モデル生成システムおよびタイヤ物理情報推定方法 | |
JP2021088227A (ja) | 回避走行支援システムおよび回避走行支援方法 | |
JP2021088228A (ja) | タイヤ使用診断システムおよびタイヤ使用診断方法 | |
JP2023094268A (ja) | タイヤ摩耗量推定システム、演算モデル生成システムおよびタイヤ摩耗量推定方法 | |
JP2021088225A (ja) | コーナリング限界予測システムおよびコーナリング限界予測方法 | |
JP2024069896A (ja) | タイヤ物理情報推定装置、タイヤ物理情報推定方法およびデータ処理装置 | |
JP2021089165A (ja) | 許容速度決定システムおよび許容速度決定方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20200312 |
|
A871 | Explanation of circumstances concerning accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A871 Effective date: 20200312 |
|
A975 | Report on accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A971005 Effective date: 20200402 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200616 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200817 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20200901 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20200930 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6772351 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |