Integrated Wheel Fixing Unit for Sensor Calibration
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Solution Overview
Problem
Conventional vehicle sensor alignment adjustment is challenging outside mass production lines due to the lack of accurate position reference points, making it difficult to ensure alignment accuracy and requiring complex cable connections.
Innovation Solution
A wheel fixing unit with a male-female connection system and elastic packing for easy installation, eliminating the need for separate cable connections, and incorporating a slit for air discharge to facilitate insertion and removal, ensuring secure coupling and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate cable connection structure is used for wheel fixing, then the connection can be secure, but the installation becomes complex and time-consuming
Solution Approach 1:
The patent integrates the cable connection structure directly into the wheel fixing unit body, combining what were previously separate components (wheel fixing mechanism and cable connection) into a single integrated unit. This eliminates the need for separate cable connections while maintaining secure attachment, directly resolving the contradiction between connection security and installation complexity
Solution Approach 2:
The wheel fixing unit is designed to perform multiple functions simultaneously: it provides mechanical wheel attachment while also incorporating cable connection capabilities through integrated connection terminals. This multi-functional design allows a single component to replace what previously required multiple separate components, simplifying installation while maintaining reliability
2Reliability
If traditional wheel fixing methods are used, then the connection can be stable, but the installation and removal process is time-consuming
Solution Approach 1:
The wheel fixing unit incorporates multiple wheel connectors (typically three) that can be independently inserted into corresponding tool connection holes in the wheel. This segmented design allows for quick, individual insertion and removal of each connector, enabling rapid installation and removal while maintaining stable connection through the combined effect of multiple connectors
Solution Approach 2:
The wheel connectors are pre-configured with connection terminals and cable routing pathways during manufacturing. This preliminary preparation of connection structures eliminates the need for on-site cable routing and connection setup, allowing installers to simply insert the connectors into the wheel holes for immediate functional installation
3Reliability
If multiple separate components are used for wheel fixing and cable connection, then each component can be optimized, but the overall system becomes more complex
Solution Approach 1:
The patent merges the wheel fixing mechanism, cable connection terminals, and structural support functions into a single integrated wheel fixing unit. This consolidation maintains the functional performance of each subsystem while eliminating the complexity of interfacing multiple separate components, directly addressing the contradiction between component optimization and system complexity
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
Enables rapid and accurate sensor alignment with reduced installation time and cost by using a wheel fixing unit that securely connects to vehicle wheels without separate cables, maintaining alignment precision and simplifying the calibration process.
Implementation Method 1
a ring-shaped packing having an elastic force to contact an inner periphery of the tool connection hole may be coupled to the groove
Data Source
AI summary
A wheel fixing unit includes: a body; a plurality of wheel connectors protruding forward from the body and connected to a tool connection hole in a wheel of a vehicle; and a cable connector protruding rearward from the body and including a connection terminal formed on a protruding end side such that a cable is connectable thereto. A calibration device using the wheel fixing unit includes: wheel fixing units respectively coupled to left and right wheels of a vehicle; a target board installed spaced apart in a direction corresponding to a vehicle body and configured such that a transmission signal of a sensor mounted on a front or rear surface of the vehicle body is reflected by a reflector and is incident on the sensor; and an interval maintaining cable connected to one end of the wheel fixing unit and one of the both sides of the target board.