JP7329068B2 - 車両タイヤ性能モデリング及びフィードバックのためのシステム及び方法 - Google Patents
車両タイヤ性能モデリング及びフィードバックのためのシステム及び方法 Download PDFInfo
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- JP7329068B2 JP7329068B2 JP2021558642A JP2021558642A JP7329068B2 JP 7329068 B2 JP7329068 B2 JP 7329068B2 JP 2021558642 A JP2021558642 A JP 2021558642A JP 2021558642 A JP2021558642 A JP 2021558642A JP 7329068 B2 JP7329068 B2 JP 7329068B2
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- 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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18172—Preventing, or responsive to skidding of wheels
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
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- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
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Description
Claims (6)
- コンピュータ実装方法であって、
車両及び/又は前記車両を支持する複数のタイヤのうちの少なくとも1つのタイヤと関連付けられた1つ以上のセンサ(112、114、116、118)を介して、前記車両及び/又は前記車両と関連付けられた前記少なくとも1つのタイヤのリアルタイムの動力学に対応する第1のデータ(136、138、310)を収集することと、
前記第1のデータをローカルで処理して、前記第1のデータの低減されたサブセットとして第2のデータ(320、330)を生成することであって、前記第2のデータが、前記第1のデータを表し、前記第1のデータから抽出された任意の1つ以上の所定の特徴を含む、生成することと、
前記第2のデータを処理して、リアルタイムで前記少なくとも1つのタイヤの現在のタイヤ摩耗特性(150)を推定することと、
前記推定された現在のタイヤ摩耗特性に基づいて、リアルタイムのフィードバックを選択的に提供することと、を含み、
前記第1のデータが、前記車両に搭載されたコンピューティングシステム(102)を介して処理され、前記コンピュータ実装方法が、
通信ネットワークを介して前記第2のデータをリモートコンピューティングシステム(130、140)に選択的に送信することと、
前記リモートコンピューティングシステムを介して、前記第2のデータを処理して、前記少なくとも1つのタイヤの前記タイヤ摩耗特性を推定することと、をさらに含み、前記第2のデータが、複数の連続データフレーム(330)を含み、各データフレームが、前記車両及び/又は前記少なくとも1つのタイヤと関連付けられた動力学データの多次元ヒストグラムを含む、コンピュータ実装方法。 - 少なくとも第1のイベントと第2のイベントとの間のデータフレームのサブセットを選択することと、
特定の時間又は特定の距離にわたる前記データフレームをサンプリングすることと、
サンプリングされたデータフレームを、データフレームの実際の収集された数に対するデータフレームの見込まれる数でダウンスケーリングすることによって、前記データフレーム内の欠落データを補償すること(430,440)と、を更に含む、請求項1に記載のコンピュータ実装方法。 - 前記第2のデータを処理して、前記少なくとも1つのタイヤの前記タイヤ摩耗特性を推定することが、
前記リモートコンピューティングシステムを介して、前記第2のデータを処理して、前記第1のデータ(950)に対応する第3のデータを生成することと、
前記第3のデータを更に処理して、前記少なくとも1つのタイヤの前記タイヤ摩耗特性を推定することと、
前記少なくとも1つのタイヤの実際の摩耗値(970)を予め取得することと、を含み、
前記第1のデータが、CANバス信号(910)を含み、
前記第2のデータが、エンコードニューラルネットワーク層(920、930)を介して生成され、
前記第3のデータが、デコードニューラルネットワーク層(940)を介して生成され、
摩耗計算層(960)が、前記デコードニューラルネットワーク層の出力に付加され、デコードされたCANバス信号を、前記少なくとも1つのタイヤの瞬時の推定摩耗値に変換するように構成されており、
前記推定摩耗値を、前記実際の摩耗値(970)と比較して、誤差値(980)を生成し、
前記誤差値が、前記摩耗計算層(960)へ入力されることで、前記エンコードニューラルネットワーク層(920、930)と前記デコードニューラルネットワーク層(940)と前記摩耗計算層(960)とを含むニューラルネットワーク層(990)を深層強化学習させる、請求項1又は2に記載のコンピュータ実装方法。 - 前記第1のデータが、前記車両に搭載されたコンピューティングシステム(102)を介して処理され、前記コンピュータ実装方法が、
前記搭載されたコンピューティングシステムを介して、前記第2のデータを処理して、前記少なくとも1つのタイヤの前記タイヤ摩耗特性を推定することと、
車両ユーザと関連付けられた表示ユニットへの前記タイヤ摩耗特性と関連付けられた通知を生成することと、
前記少なくとも1つのタイヤの実際の摩耗値(970)を予め取得することと、を更に含み、
前記第2のデータを処理して、前記少なくとも1つのタイヤの前記タイヤ摩耗特性を推定することが、前記第2のデータを処理して、前記第1のデータに対応する第3のデータ(950)を生成することと、前記第3のデータを更に処理して、前記少なくとも1つのタイヤの前記タイヤ摩耗特性を推定することと、を含み、
更に、前記第1のデータが、CANバス信号(910)を含み、
前記第2のデータが、エンコードニューラルネットワーク層(920、930)を介して生成され、
前記第3のデータが、デコードニューラルネットワーク層(940)を介して生成され、
摩耗計算層が、前記デコードニューラルネットワーク層の出力に付加され、復号されたCANバス信号を、前記少なくとも1つのタイヤの瞬時の推定摩耗値に変換するように構成されており、
前記推定摩耗値を、前記実際の摩耗値(970)と比較して、誤差値(980)を生成し、
前記誤差値が、前記摩耗計算層へ入力されることで、前記エンコードニューラルネットワーク層(920、930)と前記デコードニューラルネットワーク層(940)とを含むニューラルネットワーク層(990)を深層強化学習させる、請求項1に記載のコンピュータ実装方法。 - 全地球測位システムトランシーバ(112)を介して、前記第1のデータの低減されたサブセットとして車両位置に対応する低周波数のデータを生成することと、
通信ネットワークを介して前記低周波数のデータをリモートコンピューティングシステム(130、140)に選択的に送信することと、
前記リモートコンピューティングシステムを介して、前記低周波数のデータを、車両モデル及び1つ以上の車両経路特性を更に考慮して処理して、前記第1のデータに対応する第3のデータを生成し、前記第3のデータを更に処理して、前記少なくとも1つのタイヤの前記タイヤ摩耗特性を推定することと、を更に含み、
前記低周波数のデータが、複数の連続データフレーム(330)を更に含み、各データフレームが、前記車両及び/又は前記少なくとも1つのタイヤと関連付けられた動力学データの多次元ヒストグラムを含み、
前記リモートコンピューティングシステムが、前記収集された車両位置データから車両経路を再構築し、前記それぞれの多次元ヒストグラムに車両経路フィードバックを提供する、請求項1に記載のコンピュータ実装方法。 - コンピュータ実装方法であって、
車両及び/又は前記車両を支持する複数のタイヤのうちの少なくとも1つのタイヤと関連付けられた1つ以上のセンサ(112、114、116、118)を介して、前記車両及び/又は前記車両と関連付けられた前記少なくとも1つのタイヤのリアルタイムの動力学に対応する第1のデータ(136、138、310)を収集することと、
前記第1のデータをローカルで処理して、前記第1のデータの低減されたサブセットとして第2のデータ(320、330)を生成することであって、前記第2のデータが、前記第1のデータを表し、前記第1のデータから抽出された任意の1つ以上の所定の特徴を含む、生成することと、
前記第2のデータを処理して、リアルタイムで前記少なくとも1つのタイヤの現在のタイヤ摩耗特性(150)を推定することと、
前記推定された現在のタイヤ摩耗特性に基づいて、リアルタイムのフィードバックを選択的に提供することと、を含み、
全地球測位システムトランシーバ(112)を介して、前記第1のデータの低減されたサブセットとして車両位置に対応する低周波数のデータを生成することと、
通信ネットワークを介して前記低周波数のデータをリモートコンピューティングシステム(130、140)に選択的に送信することと、
前記リモートコンピューティングシステムを介して、前記低周波数のデータを、車両モデル及び1つ以上の車両経路特性を更に考慮して処理して、前記第1のデータに対応する第3のデータを生成し、前記第3のデータを更に処理して、前記少なくとも1つのタイヤの前記タイヤ摩耗特性を推定することと、を更に含み、
前記低周波数のデータが、複数の連続データフレーム(330)を更に含み、各データフレームが、前記車両及び/又は前記少なくとも1つのタイヤと関連付けられた動力学データの多次元ヒストグラムを含み、
前記リモートコンピューティングシステムが、前記収集された車両位置データから車両経路を再構築し、前記それぞれの多次元ヒストグラムに車両経路フィードバックを提供する、請求項1に記載のコンピュータ実装方法。
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