Precision Gravity Center Position Measurement System for Heavy Vehicles

Xin Tong Zhao; H.Z. Jiang; S.T. Zheng; Jun Wei Han

doi:10.4028/www.scientific.net/KEM.315-316.788

Paper Titles

Grains Ultra-Refinement of Materials Imposed by Pulse Laser
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A Suspending Abrasives and Porous Pad Model for the Analysis of Lubrication in Chemical Mechanical Polishing
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Research on Periodic Structures Aroused by Femtosecond Laser Irradiation on Single-Crystalline Silicon Wafer
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Investigation on Adhesion Work and Its Effects on Micro Friction
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Precision Gravity Center Position Measurement System for Heavy Vehicles
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Study on Nanometric Machining Process of Monocrystalline Si
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Measurement of Roundness and Sphericity of the Micro Sphere Based on Atomic Force Microscope
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Three-Dimensional Micromachining Based on AFM
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A Study of Precision Sub-Dry Cutting Mechanism
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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.