Method for balancing motor vehicle wheels
AssigneeCorghi S.p.A.
InventorRemo Corghi
Life of this patent
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Abstract
A method for balancing motor vehicle wheels, comprising mounting the wheel onto the rotating spindle of a balancing machine, using a probe of known type, selecting balancing planes and diameters, providing the data to the balancing machine, spinning the wheel, calculating the value of imbalance, calculating an entity and angular position for balancing weights to be applied in the balancing planes and diameters previously selected by the operator; during the spinning of the wheel, measuring an acceleration time between two predetermined speeds of the wheel; calculating an imbalance threshold value and applying the balancing weight only if it is above the calculated threshold value.
Claims9
A method for balancing motor vehicle wheels, comprising following operations:
- mounting a wheel onto a rotating spindle of a balancing machine;
- using a probe of known type for selecting balancing planes and diameters, and providing data relating to the planes and diameters to the balancing machine;
- spinning the wheel;
- calculating a value of imbalance W;
- calculating an entity and angular position for balancing weights to be applied in the balancing planes and diameters previously selected by an operator;
- characterised in that said method comprises following further activities;
- a. during the spinning of the wheel, measuring an acceleration time TACC between two predetermined speeds of the wheel;
- b. calculating an imbalance threshold value WB with the equation as follows:
- WB=KS×TACC+S0
- where
- KS is a threshold constant expressed in grams per millisecond (g/ms)
- S0 is a minimum threshold value expressed in grams (g)
- TACC is an acceleration time expressed in milliseconds (ms)
- c. applying a balancing weight only if said imbalance value is above the calculated threshold value.
Dependencies are inferred from the claim text.