Precision gravity center position measurement system for heavy vehicles

X. T. Zhao, H. Z. Jiang, S. T. Zheng, J. W. Han

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Knowledge of a vehicle's inertial parameters is essential for safety research and accident reconstruction. A precision measure system is proposed to determine the weight and gravity center for heavy vehicles. Based on a static gravity measuring principle with three measuring points, a hydraulically driven 2-DOF motion platform is developed. The transfer function model is derived for the hydraulically driven system. By means of a degree-of-freedom control scheme, the platform can realize accurate positioning to construct two intersected planes and work out the three-dimensional coordinates of the vehicle gravity center. Experiments demonstrate that the system has less than 0.3% measurement error in weight, and is able to measure the gravity centre accurately with deviation ≤3mm in X and Y direction, and ≤5mm in Z direction.

Original languageEnglish
Pages (from-to)788-791
Number of pages4
JournalKey Engineering Materials
Volume315-316
DOIs
StatePublished - 2006
Externally publishedYes

Keywords

  • Gravity center
  • Measurement
  • Vehicle
  • Weighting

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