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  • Summary & Details

Study of State Estimation Using LSTM for Semi-active Suspension

セミアクティブサスペンションにおけるLSTMを応用した状態推定の検討

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Category(J)論文

Translation

Category(E)Paper
Author(J)1) 山本 彰人, 2) 山田 一二, 3) 鈴木 茂樹, 4) 田中 亘, 5) 脇田 陸, 6) 石野 柊輔
Author(E)1) Akihito Yamamoto, 2) Ichiji Yamada, 3) Shigeki Suzuki, 4) Wataru Tanaka, 5) Riku Wakita, 6) Shusuke Ishino
Affiliation(J)1) アイシン, 2) アイシン, 3) アイシン, 4) アイシン, 5) アイシン, 6) アイシン・ソフトウェア
Abstract(J)セミアクティブサスペンションではダンパーのストローク速度の推定が必要となる.従来はオブザーバを用いた推定が一般的であったが,本稿ではLSTMを応用した全く新しい手法を提案し,ストローク速度の推定精度を向上させた.その結果,乗り心地性能の更なる改善に成功したため報告する.

Translation

Abstract(E)The study described in this paper aim to further enhance the estimation accuracy of the suspension stroke velocity using the vertical acceleration sensor on the sprung mass. Previous studies have confirmed the effectiveness of including the nonlinear characteristics and delays of semi-active damper in the observer model. However, the observer could not estimate correctly near unsprung resonance point. To solve this problem, we try to use LSTM to estimate the stroke velocity. The effectiveness is verified by carrying out simulations and experiments.

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