Identification Method of Automobile Response to Steering Input Using Normalized Cornering Stiffness.

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  • 正規化コーナリングパワーを用いた自動車の操舵応答性能の同定法
  • セイキカ コーナリング パワー オ モチイタ ジドウシャ ノ ソウダ オウトウ セイノウ ノ ドウテイホウ

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This paper discusses the identification method of automobile response to steering input using "normalized cornering stiffness", which is equivalent cornering stiffness divided by normal load and represents both vehicle response and axle property. Thus we can determine suspension, tire and steering system property to satisfy target response using normalized cornering stiffness. Firstly, this paper proposes the measurement method of normalized cornering stiffness using critical speed at which the vehicle attitude angle equals zero. This method features high accuracy because it is independent of the error of speed sensor. Next, the measurement result about over twenty vehicles is shown. This result points out that the variance of rear normalized cornering stiffness is quite large.

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