Technology for Prediction of Contactor Noise for Electric-powered Vehicle Batteries
電磁接触器が励振する電動車騒音の予測技術
- Delivery
- Available on the other site
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- Paper/Info type
- Honda R&D Technical Review
Vol.33 No.1
- Pages
- 43-49(Total 7 p)
- Date of publication
- Mar 2021
- Publisher
- Others, Unknown
- Language
- Japanese
Detailed Information
| Category(J) | 論文 Translation |
|---|---|
| Category(E) | Technical Papers and Explanation |
| Author(J) | 1) 下村 章人 , 2) 外山 直基 , 3) 川辺 正道 , 4) 佐藤 嘉實 |
| Author(E) | 1) Akito SHIMOMURA, 2) Naoki TOYAMA, 3) Masamichi KAWABE, 4) Yoshimi SATO |
| Affiliation(J) | 1) 本田技研工業, 2) 本田技研工業, 3) 本田技研工業, 4) エステック |
| Affiliation(E) | 1) Honda Motor, 2) Honda Motor, 3) Honda Motor, 4) Estech |
| Abstract(J) | 電動車には高電圧バッテリーユニットが車体に搭載されており，このユニット内の電磁接触器の作動音は乗員にとって不快に感じられる．この騒音を，高電圧バッテリーユニット単体の加振力と車体の構造音響伝達特性から予測する手法を構築した．コンポーネントベース伝達経路解析を採用することで，振動源と伝達系を切り離し，高電圧バッテリーユニット単体の車体側へ伝達する荷重と車体構造伝達とキャビン音響伝達を複合した伝達関数を用いることで完成車状態の騒音を予測できるようにした．さらに，サブユニットであるジャンクションボードの荷重から高電圧バッテリーユニット単体の荷重を予測するCAEモデルを構築し，高電圧バッテリーユニットの図面段階で加振力を予測できるようにした．以上の技術により，完成車状態における騒音の評価が，性能設計の段階で検討できるようになった． Translation |
| Abstract(E) | Electric-powered vehicles have a high-voltage battery unit mounted in the vehicle body, and the sound made by operation of the electromagnetic contactor inside the unit can be unpleasant for vehicle occupants. A method was created for predicting this noise from the excitation force of the high-voltage battery unit on its own and from the acoustic transmission characteristics of the vehicle body structure. The adoption of component-based transfer path analysis made it possible to separate vibration sources from transfer systems and predict noise in the fully assembled vehicle state by using the load transferred from the stand-alone high-voltage battery unit to the vehicle body side and a transfer function that combines the vehicle body structure transfer and the cabin acoustic transfer. A computer-aided engineering model was also created for predicting the load from the stand-alone high-voltage battery unit based on the load from the junction board, which is a sub-unit of it. This made it possible to predict the excitation force of the high-voltage battery unit at the drawing stage. By means of the above technology, it has become possible to consider noise evaluation in the fully assembled vehicle state at the performance design stage. |
