Method and apparatus for wheel alignment
First Claim
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1. A method for determining the alignment of a motor vehicle wheel, comprising the steps of:
- mounting a three-dimensional target on the vehicle wheel, wherein the three-dimensional target comprises first and second target surfaces non-adjacent each other, each of the first and second target surfaces having a plurality of target elements with geometric characteristics and being configured in 3D space in accordance with three-dimensional relationships with respect to each other;
acquiring a 2D image of the three-dimensional target using a camera; and
determining alignment of the wheel using a spatial orientation of the three-dimensional target, derived from the 2D image and the three-dimensional relationships among the target elements.
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Abstract
A vehicle wheel alignment method and system is provided. A three-dimensional target is attached to a vehicle wheel known to be in alignment. The three-dimensional target has multiple target elements thereon, each of which has known geometric characteristics and 3D spatial relationship with one another.
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Citations
13 Claims
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1. A method for determining the alignment of a motor vehicle wheel, comprising the steps of:
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mounting a three-dimensional target on the vehicle wheel, wherein the three-dimensional target comprises first and second target surfaces non-adjacent each other, each of the first and second target surfaces having a plurality of target elements with geometric characteristics and being configured in 3D space in accordance with three-dimensional relationships with respect to each other; acquiring a 2D image of the three-dimensional target using a camera; and determining alignment of the wheel using a spatial orientation of the three-dimensional target, derived from the 2D image and the three-dimensional relationships among the target elements. - View Dependent Claims (2, 3, 4)
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5. A three-dimensional target for attachment to a vehicle wheel, the three-dimensional target comprising:
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first and second target surfaces non-adjacent each other, each of the first and second target surfaces having a plurality of target elements, and configured in 3D space in accordance with three-dimensional relationships with respect to each other; and a clamp for removably attaching the target to the vehicle wheel. - View Dependent Claims (6, 7, 8)
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9. A three-dimensional target for attachment to a vehicle wheel, the three-dimensional target comprising:
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a clamp for removably mounting the target to the vehicle wheel; and a target body attached to the clamp, the target body having first and second target surfaces non-adjacent each other, each of the first and second target surfaces having a plurality of target elements, and configured in 3D space in accordance with three-dimensional relationships with respect to each other. - View Dependent Claims (10, 11, 12, 13)
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Specification