Precision gravity center position measurement system for heavy vehicles

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

doi:10.4028/0-87849-999-7.788

Precision gravity center position measurement system for heavy vehicles

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

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	788-791
Number of pages	4
Journal	Key Engineering Materials
Volume	315-316
DOIs	https://doi.org/10.4028/0-87849-999-7.788
State	Published - 2006
Externally published	Yes

Keywords

Gravity center
Measurement
Vehicle
Weighting

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10.4028/0-87849-999-7.788

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title = "Precision gravity center position measurement system for heavy vehicles",

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.",

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journal = "Key Engineering Materials",

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T1 - Precision gravity center position measurement system for heavy vehicles

AU - Zhao, X. T.

AU - Jiang, H. Z.

AU - Zheng, S. T.

AU - Han, J. W.

PY - 2006

Y1 - 2006

N2 - 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.

AB - 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.

KW - Gravity center

KW - Measurement

KW - Vehicle

KW - Weighting

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Precision gravity center position measurement system for heavy vehicles

Abstract

Keywords

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