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Summary & Details

Estimation of Grip Margin and Road μ Focusing on Motor Drive System Vibration

モーター駆動系振動に基づくグリップ余裕度および路面μ推定

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Format: PDF

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

Publication code: 20266246

Paper/Info type: Proceedings (Autumn)

No.143-26

Pages: 1-2(Total 2 p)

Date of publication: Oct 2026

Publisher: JSAE

Language: Japanese

Event: 2026 JSAE Annual Congress (Autumn)

Detailed Information

Author(J)	1) 小野英一, 2) 米澤紀男, 3) 小薮忠勝
Author(E)	1) Eiichi Ono, 2) Norio Yonezawa, 3) Tadakatsu Koyabu
Affiliation(J)	1) 豊田中央研究所, 2) 豊田中央研究所, 3) デンソー
Affiliation(E)	1) Toyota Central R&D Labs., 2) Toyota Central R&D Labs., 3) DENSO
Abstract(J)	車輪速度に現れる共振現象は，路面摩擦状態に応じて変化する．この特性を利用することでグリップ余裕度や路面摩擦係数（μ）の推定が可能となる．本稿では，モーター駆動車両のドライブシャフト共振現象を利用した推定手法を提案する．さらに，路面μが管理されたテストコースにおいて，路面μ推定の実験検証を行う． Translation
Abstract(E)	The resonance phenomenon observed in wheel speed varies depending on the road surface friction condition. By utilizing this characteristic, it becomes possible to estimate the grip margin and the road surface friction coefficient (μ). In this paper, we propose an estimation method that makes use of the driveshaft resonance phenomenon in motor-driven vehicles. Furthermore, experimental verification of road surface μ estimation will be conducted on a proving ground where road surface μ is controlled.

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