No.1006 2009 電動パワーステアリングシステムの電磁波ノイズ源特定技術の確立 |
| カテゴリー | 資料 |
|---|---|
| 筆者 | 研究開発センター FP 研究部 水野尊広 |
| 要旨 | In this research it has been shown that the sources of electromagnetic noise in electric power steering (EPS) systems can be identified by measuring the distribution of magnetic field strength on the substrate of the electronic control unit (ECU). As the first step in the electromagnetic noise source identification process, the distribution of magnetic field strength on the ECU substrate was mapped by means of substrate noise visualization apparatus. Subsequently, the measured strength pattern was overlaid on the map so as to estimate the sources of electromagnetic noise, whereupon corrective measures were provided. It was confi rmed that the overall noise radiation from the system was reduced. As the establishment of technology for identifi cation of electromagnetic noise sources would do away with trial-and-error processes to counter electromagnetic noise, it is expected that such technology will help to improve efficiency in ECU development. |
| キーワード | electromagnetic noise, noise source measurement, electric power steering system, ECU |
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