Parking Assist Candidate Display and Selection
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Solution Overview
Problem
Conventional parking assist systems fail to properly display and assist in parking when a parking space is falsely detected or not detected at all, especially in conditions like dark surroundings or thin parking lines, leading to ineffective parking operations.
Innovation Solution
A parking assist system that includes a parking position candidate detector to identify potential parking spaces, a display device to show these candidates on a screen, and a control device to enable autonomous parking to a selected position, allowing users to choose from overlapping candidates and preventing erroneous selections by limiting displayed options and disabling selection at high speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a parking space recognition device is provided to detect parking spaces from images, then the need to move the vehicle to match target frames is reduced, but false detection or failure to detect parking spaces occurs in conditions like dark surroundings or thin parking lines
Solution Approach 1:
The patent introduces an intermediary manual selection mechanism between the detection device and the parking execution. The display device shows multiple candidate parking positions detected by the recognition device, and the driver manually selects the correct one. This intermediary step resolves the contradiction by allowing the system to benefit from automated detection while preventing false detections from causing errors, as the driver serves as the final verification layer.
Solution Approach 2:
The system dynamically adjusts the number of parking position candidates displayed based on detection confidence and environmental conditions. When detection is uncertain (e.g., dark surroundings or thin lines), the system displays more candidates including undelimited spaces, allowing driver selection. This dynamic adaptation resolves the contradiction by flexibly balancing automated detection utility with reliability based on real-time conditions.
2Adaptability or versatility
If multiple parking position candidates including undelimited spaces are displayed, then parking assist can be performed even when traditional detection fails, but the complexity of display and selection increases
Solution Approach 1:
The patent segments the display of parking position candidates into different types: delimited parking spaces (with clear boundaries) and undelimited parking spaces (without clear boundaries). Each type is displayed with distinct visual characteristics, and the selection interface is segmented to handle different detection confidence levels. This segmentation resolves the contradiction by organizing the complex information into manageable categories that are easier for the driver to process and select from.
Solution Approach 2:
The system applies different display qualities and selection methods to different types of parking candidates. Delimited spaces with high detection confidence are displayed with clear boundary lines and can be selected directly, while undelimited spaces are displayed with different visual indicators and require additional confirmation. This local quality differentiation resolves the contradiction by tailoring the display and selection complexity to the specific characteristics of each candidate, reducing overall system complexity while maintaining versatility.
3Reliability
If the system allows selection from multiple overlapping parking candidates, then accurate parking can be achieved even with detection errors, but the ease of operation is reduced due to limited selection options displayed
Solution Approach 1:
The patent displays a limited number of parking position candidates (e.g., up to 3) rather than all possible candidates, which is a form of partial action. This resolves the contradiction by showing enough candidates to ensure the correct parking position is available for selection (maintaining reliability) while limiting the number to keep the interface simple and easy to operate. The system strikes a balance between providing sufficient options and maintaining operational simplicity.
Solution Approach 2:
The system provides visual feedback by displaying the detected parking candidates with their confidence levels and allowing the driver to see which candidate is currently selected. This feedback mechanism helps the driver quickly identify and select the correct parking position among the displayed candidates, resolving the contradiction by making the selection process more intuitive and easier to operate while maintaining reliable selection accuracy.
Data Source
AI summary
A parking assist system includes a control device configured to control screen display of a display device, to set the parking position candidate selected by an occupant as a target parking position, and to control an autonomous parking operation to autonomously move the vehicle to the target parking position. When multiple parking position candidates partially overlapping with each other are detected by a parking position candidate detector, the control device causes the display device to display the multiple parking position candidates so as to partially overlap with each other and to be selectable.