ISO 10392:2011
Road vehicles — Determination of centre of gravity
ISO 10392:2011 specifies methods for determining the location of the centre of gravity (CG) of a road vehicle, as defined in ISO 3833. A method for determining the coordinates of the CG in the horizontal plane is provided. Two methods for determining the height of the CG above the ground are specified.
The axle lift and the stable pendulum methods are the most common methods for determining vehicle CG height. The axle lift method requires less dedicated equipment and is typically an easier and less expensive method than the stable pendulum method. The axle lift method can generally provide CG height accuracy in the range of a few percent, while the stable pendulum method can provide accuracy in the range of 0,5%.
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1 Scope
2 Normative references
3 Terms and definitions
4 Test conditions and preliminary measurements
4.1 Operating and other liquids
4.2 Preliminary measurements
5 Determination of coordinates in horizontal plane
5.1 Location of CG longitudinally
5.2 Location of CG laterally
6 Determination of CG height: Axle lift method
6.1 Loading conditions, suspensions and mechanical parts
6.2 Measuring procedure
6.3 Accuracy of determined parameters
6.4 Determination of axle load and lifting angle
6.5 Location of CG above ground
6.6 Data presentation
7 Determination of CG height: Stable pendulum method
7.1 General
7.2 Loading conditions, vehicle restraints, and mechanical parts
7.3 Measuring procedure
7.4 Accuracy of determined parameters
7.5 Determination of platform properties
7.6 Determination of applied torque
7.7 Consideration of platform deflection
7.8 Location of CG above ground
7.9 Data presentation
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1 Scope
2 Normative references
3 Terms and definitions
4 Test conditions and preliminary measurements
4.1 Operating and other liquids
4.2 Preliminary measurements
5 Determination of coordinates in horizontal plane
5.1 Location of CG longitudinally
5.2 Location of CG laterally
6 Determination of CG height: Axle lift method
6.1 Loading conditions, suspensions and mechanical parts
6.2 Measuring procedure
6.3 Accuracy of determined parameters
6.4 Determination of axle load and lifting angle
6.5 Location of CG above ground
6.6 Data presentation
7 Determination of CG height: Stable pendulum method
7.1 General
7.2 Loading conditions, vehicle restraints, and mechanical parts
7.3 Measuring procedure
7.4 Accuracy of determined parameters
7.5 Determination of platform properties
7.6 Determination of applied torque
7.7 Consideration of platform deflection
7.8 Location of CG above ground
7.9 Data presentation