Method of matching a vehicle wheel
First Claim
1. A method for matching a wheel having a tire mounted on a rim, the method including the steps of:
- receiving data representing effects caused by geometrical non-uniformities of the rim and the tire, wherein the effects caused geometrical non-uniformities of the rim and the tire vary with positional parameters of the tire and the rim;
receiving data representing effects caused by imbalance of the rim and the tire, wherein the effects caused by imbalance of the rim and the tire vary with positional parameters of the tire and the rim;
defining an index vector representing the effects caused by geometrical non-uniformities of the rim and the tire, and the effects caused by imbalance status of the rim and the tire; and
determining an optimized position of the tire and the rim based on the index vector.
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Accused Products
Abstract
A method for determining an optimized position between the tire and rim of a wheel to improve operation smoothness of the wheel. Measurements are conducted to determine respective effects of wheel imbalance and non-uniformities contributed by the tire and rim at different rotational positions. An index vector representing the respective effects is defined. The optimized position is determined based on an observation of changes of the index vector relative to the changes of respective effects of wheel imbalance and non-uniformities contributed by the tire and rim at different rotational positions. The relative position between the tire and rim is adjusted according to the optimized position to achieve better operation of the wheel.
34 Citations
21 Claims
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1. A method for matching a wheel having a tire mounted on a rim, the method including the steps of:
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receiving data representing effects caused by geometrical non-uniformities of the rim and the tire, wherein the effects caused geometrical non-uniformities of the rim and the tire vary with positional parameters of the tire and the rim;
receiving data representing effects caused by imbalance of the rim and the tire, wherein the effects caused by imbalance of the rim and the tire vary with positional parameters of the tire and the rim;
defining an index vector representing the effects caused by geometrical non-uniformities of the rim and the tire, and the effects caused by imbalance status of the rim and the tire; and
determining an optimized position of the tire and the rim based on the index vector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A machine-readable medium bearing instructions for determining an optimized relative position of a tire and rim of a wheel, the instructions upon execution by a data processing system causing the data processing system to perform the steps of:
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receiving data representing effects caused by geometrical non-uniformities of the rim and the tire, wherein the effects caused geometrical non-uniformities of the rim and the tire vary with positional parameters of the tire and the rim;
receiving data representing effects caused by imbalance of the rim and the tire, wherein the effects caused by imbalance of the rim and the tire vary with positional parameters of the tire and the rim;
defining an index vector representing the effects caused by geometrical non-uniformities of the rim and the tire, and the effects caused by imbalance status of the rim and the tire; and
determining an optimized position of the tire and the rim based on the index vector. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A system for determining an optimized relative position of a tire and rim of a wheel, the system comprising:
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non-contacting sensing means for determining effects caused by geometrical non-uniformities of the rim and the tire, wherein the effects caused geometrical non-uniformities of the rim and the tire vary with positional parameters of the tire and the rim, wherein the effects caused geometrical non-uniformities of the rim and the tire vary with positional parameters of the tire and the rim;
detecting means for detecting effects caused by imbalance of the rim and the tire, wherein the effects caused by imbalance of the rim and the tire vary with positional parameters of the tire and the rim; and
a data processing system coupled to the non-contacting sensing means and the detecting means for receiving data representing effects caused by geometrical non-uniformities of the rim and the tire, and data representing effects caused by imbalance of the rim and the tire;
wherein the data processing system is configured to perform the steps of;
calculating an index vector based on the data representing effects caused by geometrical non-uniformities of the rim and the tire, and data representing effects caused by imbalance of the rim and the tire; and
determining an optimized position of the tire and the rim based on the index vector. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A method of matching a vehicle wheel having a pneumatic tire mounted on a rim, in which the tire and the rim are rotatable relative to each other, the method characterised in that geometrical deviation data representing deviations from geometrical reference data of the tire and the rim are measured, and an imbalance measuring operation is carried out, wherein during the operation of measuring the geometrical deviation data and the imbalance measuring operation, the tire is in a first position on the rim, and that the tire is then rotated on the rim to a second position such that an index vector resulting from the geometrical deviation data of the tire and the rim, and the imbalance caused by the tire and the rim, is minimized.
Specification