Vehicle Radar Sensor Positioning via Floating Reference Holder
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Solution Overview
Problem
Existing position detecting devices face challenges in accurately aligning and adjusting radar sensors due to errors in attachment, leading to positional or angular deviations.
Innovation Solution
A position detecting device with a connecting structure and a position reference member that applies a biasing force to maintain a floating support state, allowing for precise alignment and adjustment of radar sensors by absorbing errors through guiding sections and abutting sections, enabling reliable attachment and removal without applying excessive force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a position detecting device is rigidly attached to a radar sensor, then the attachment is stable and secure, but attachment errors cause positional or angular deviations that reduce detection accuracy
Solution Approach 1:
The position reference holder is designed to be movable relative to the connecting structure, allowing it to dynamically adjust its position to compensate for attachment errors. The holder can move in multiple directions (upward, downward, leftward, rightward) to maintain accurate alignment with the radar sensor's position reference, thereby resolving the contradiction between stable attachment and detection accuracy.
Solution Approach 2:
The position reference holder acts as an intermediary component between the connecting structure and the radar sensor. It absorbs attachment errors through its movable design and guides the position reference to accurately contact the radar sensor, mediating the connection to eliminate the negative impact of rigid attachment on detection accuracy.
2Measurement precision
If a position detecting device allows movable attachment to absorb errors, then position detection accuracy is maintained, but the attachment structure becomes more complex
Solution Approach 1:
The connecting structure is segmented into distinct functional components: the connecting structure itself, the position reference holder, and the position reference. This segmentation allows each component to perform its specific function independently, simplifying the overall design while maintaining accuracy. The holder's movement capability is achieved through simple guide sections rather than complex mechanisms.
Solution Approach 2:
The position reference holder is designed to automatically adjust its position to compensate for attachment errors without requiring external control or complex actuation mechanisms. The holder self-corrects misalignments through its movable design, eliminating the need for additional complexity in the connecting structure while maintaining detection accuracy.
3Reliability
If excessive force is applied during attachment to ensure secure connection, then the attachment is reliable, but the radar sensor or position reference may be damaged or misaligned
Solution Approach 1:
The movable position reference holder allows the attachment process to be dynamic rather than rigid. The holder can move to accommodate minor misalignments during attachment, enabling secure connection without requiring excessive force that could damage the sensor or cause misalignment.
Solution Approach 2:
The movable holder design provides a cushioning effect that absorbs attachment errors and prevents the transmission of excessive forces to the radar sensor. This prior cushioning capability protects the sensor and position reference from damage or misalignment during the attachment process while ensuring reliable connection.
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 device ensures accurate positional detection and adjustment of radar sensors by minimizing the impact of attachment errors, facilitating easy and rapid attachment and removal operations while preventing inappropriate settings.
Implementation Method 1
a position reference holder that is movable with respect to the connecting structure and that is displaced against a biasing force in a state in which the connecting structure is connected to the radar sensor
Implementation Method 2
the holding member includes a guiding section that comes in contact with the radar sensor and that defines a relative position of the holding member with respect to the radar sensor
Implementation Method 3
the holding member includes a first abutting section that abuts a connecting section of the radar sensor from a first side in a first direction
Data Source
AI summary
A position detecting device used for positional adjustment of a radar sensor serving as an object detector mounted in a vehicle includes a connecting structure connected to the radar sensor, and a position reference holder that is supported by the connecting structure in a state in which a biasing force toward an initial position is applied, that is displaced against the biasing force in a state in which the connecting structure is connected to the radar sensor and that is pushed against a position reference of the radar sensor in a floating support state.