Details page | Paper / Information search system

Search

Search help

Summary & Details

Development of Causal Discovery Method with CVT Oil Pump Noise Analysis

CVTオイルポンプ音を題材とした因果探索手法の開発

Delivery: Available on this site

Format: PDF

Price: Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880

Publication code: 20224257

Paper/Info type: Journal of Society of Automotive Engineers of Japan

Vol.76 No.4

Pages: 84-90(Total 7 p)

Date of publication: Apr 2022

Publisher: JSAE

Language: Japanese

Detailed Information

Category(J)	ホットトピックス Translation
Category(E)	Hot Topics
Author(J)	1) 小山智樹, 2) 山本宇紘, 3) 斎藤誠, 4) 山下寛子, 5) 金子隆, 6) 浅野貴文
Author(E)	1) Tomoki Koyama, 2) Takahiro Yamamoto, 3) Makoto Saito, 4) Hiroko Yamashita, 5) Takashi Kaneko, 6) Takafumi Asano
Affiliation(J)	1) SUBARU, 2) SUBARU, 3) SUBARU, 4) SUBARU, 5) SUBARU, 6) SUBARU
Abstract(J)	CVT構造が複雑化する中，計測データ量がますます膨大となり，オイルポンプ音の起振源や伝達経路の特定が困難になっている．そこで，短時間で確度が高い要因分析を行うため，統計的因果探索手法LiNGAMを用い，分析の効率化を図る．本稿は，自動車開発特有の時系列・多点計測データへの活用方法を中心に紹介する． Translation
Abstract(E)	To elucidate main excitation force and transfer path of pump noise requires a huge effort and resource especially because of CVT is getting complicated hardware and control system. We used LiNGAM（Linear Non-Gaussian Acyclic Model）for understanding the causal structure of the issues to efficiency estimate the key factor from the measurement data. This article introduces the technical tips and the usefulness of this method with typical measurement data.

About search

How to use the search box

You can enter up to 5 search conditions. The number of search boxes can be increased or decreased with the "+" and "-" buttons on the right.

If you enter multiple words separated by spaces in one search box, the data that "contains all" of the entered words will be searched (AND search).

Example) X (space) Y → "X and Y (including)"

How to use "AND" and "OR" pull-down

If "AND" is specified, the "contains both" data of the phrase entered in the previous and next search boxes will be searched. If you specify "OR", the data that "contains" any of the words entered in the search boxes before and after is searched.

Example) X AND Y → "X and Y (including)" X OR Z → "X or Z (including)"

If AND and OR searches are mixed, OR search has priority.

Example) X AND Y OR Z → X AND (Y OR Z)

If AND search and multiple OR search are mixed, OR search has priority.

Example) W AND X OR Y OR Z → W AND (X OR Y OR Z)

How to use the search filters

Use the "search filters" when you want to narrow down the search results, such as when there are too many search results. If you check each item, the search results will be narrowed down to only the data that includes that item.

The number in "()" after each item is the number of data that includes that item.

Search tips

When searching by author name, enter the first and last name separated by a space, such as "Taro Jidosha".