Dual Column Support Structure for ADAS Calibration Stability
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Solution Overview
Problem
Existing vehicle measurement and inspection systems for ADAS sensors are unstable and prone to tipping due to their high center of gravity, especially when moved over sloped or uneven surfaces, which poses a risk during calibration and inspection procedures.
Innovation Solution
A movable vehicle measurement and ADAS inspection system with dual in-line support columns and a counterweight system, coupled via a driven cable and pulley assembly, maintains a low center of gravity and includes a storage cabinet and friction brake mechanism to prevent unintended movement, ensuring stability during use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a single vertical column is used to support the camera crossbeam and ADAS calibration target, then the system occupies less space, but the system becomes unstable and prone to tipping when moved forward or backward
Solution Approach 1:
The single vertical column is segmented into two separate vertical columns positioned at the rear of the base. This segmentation distributes the support load and creates a wider base footprint, preventing the system from tipping forward or backward when moved, while still maintaining a compact overall structure.
2Adaptability or versatility
If the instrumentation and target assembly is positioned high on the column, then it can accommodate vehicles at different elevations, but the center of gravity increases making the system prone to tipping
Solution Approach 1:
A counterweight assembly is introduced that can be positioned at different vertical locations along the rear columns. By adjusting the counterweight position, the center of gravity of the entire system is lowered and stabilized, preventing tipping while still allowing the instrumentation crossbeam to be positioned high enough to accommodate vehicles at different elevations on the lift rack.
3Ease of operation
If the system is designed to be movable on a wheeled base, then it can be repositioned for different service areas, but it becomes vulnerable to accidental tipping on sloped or uneven surfaces
Solution Approach 1:
The support structure is segmented into two rear columns instead of one central column, creating a wider stance that increases stability on sloped or uneven surfaces while maintaining mobility through the wheeled base. The separation of support points distributes forces more effectively during movement.
Solution Approach 2:
The adjustable counterweight assembly compensates for unstable conditions during movement by allowing the operator to lower the system's center of gravity, increasing resistance to tipping on sloped shop floors or uneven surfaces while the system remains mobile on its wheeled base.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides a stable and resistant-to-tipping platform for ADAS calibration and measurement, allowing for precise positioning and movement over varied surfaces without accidental displacement, enhancing safety and operational efficiency.
Implementation Method 1
linked to a counterweight supported on a rear column by a driven cable and pulley assembly coupled across the upper end of each column
Implementation Method 2
maintains a low center of gravity to be highly resistant to accidental tipping or tilting
Implementation Method 3
The friction brake pads are biased into engagement with a supporting floor surface to prevent unintended movement of the wheeled base
Data Source
AI summary
A vehicle measurement and ADAS inspection and/or calibration system incorporating dual support columns arranged in a front-to-back configuration on a rolling base to achieve a low center of gravity. A vertically adjustable instrumentation and target support lateral crossbeam is mounted to a front column and is linked to a counterweight supported on a rear column by a driven cable and pulley assembly. A storage cabinet is additionally located on the wheeled base, partially enclosing a lower portion of the rear column, and extending forward towards the front column. Brake releases are operatively coupled to associated friction brake pads located below the base. The friction brake pads are biased into engagement with a supporting floor surface to prevent unintended movement of the base, and temporarily disengaged by operation of the associated brake releases.