3D Wheel Alignment Target Using Spatial Orientation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional two-dimensional targets require a large size for accurate wheel alignment determination, which is inefficient and may not provide precise measurements.
Innovation Solution
A three-dimensional target with known geometric characteristics and relationships is used, attached to a vehicle wheel, allowing a 2D imaging system to capture images of the target elements, and a wheel alignment determination system calculates the spatial orientation to determine the alignment based on these relationships.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a two-dimensional target is used for wheel alignment determination, then the alignment can be measured, but the target requires a large size to achieve accurate measurements
Solution Approach 1:
The patent applies dimensionality change by transitioning from a two-dimensional target to a three-dimensional target structure. The 3D target includes multiple target elements positioned at different depths and spatial coordinates, allowing the alignment system to determine wheel alignment parameters from a smaller physical target by utilizing depth and spatial relationship information that is not available with 2D targets alone.
2Measurement precision
If a two-dimensional target of large size is used, then accurate wheel alignment determination can be achieved, but the efficiency and practicality are reduced
Solution Approach 1:
By introducing three-dimensional spatial positioning of multiple target elements, the system achieves accurate alignment measurements from a compact target structure. This eliminates the need for large 2D targets while maintaining measurement precision, thereby improving measurement efficiency and practicality in real-world wheel alignment applications.
3Measurement precision
If a three-dimensional target with multiple target elements is used, then accurate wheel alignment can be determined from a smaller target, but the complexity of the target structure increases
Solution Approach 1:
The target is segmented into multiple discrete target elements (such as spheres, cubes, or other geometric shapes) positioned at known three-dimensional coordinates relative to each other. Each element can be independently detected and identified by the alignment system, and their spatial relationships provide the mathematical basis for calculating wheel alignment parameters. This segmentation approach achieves high measurement precision while keeping each individual element simple and the overall structure manageable.
Data Source
Figure 1
Figure 2a
Figure 2b
AI summary
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.