Parking Space Contour Rotation for Accurate Automated Parking
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Solution Overview
Problem
Existing parking assistance systems often fail to accurately detect the orientation and size of parking spaces, leading to suboptimal parking and unnecessary aborts, especially when sensors like cameras are not used, resulting in vehicles being parked at angles or in spaces that could be utilized more efficiently.
Innovation Solution
A method that iteratively adjusts the rotational position and size of the detected parking area contour using vehicle sensors, optimizing the parking space to align with human driving behavior by iteratively rotating and resizing the parking area contour based on quality criteria, ensuring collision-free and efficient parking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the parking assistance system uses limited sensor range and speed constraints to detect parking spaces, then the detection process is faster and simpler, but the accuracy of detecting parking space orientation and boundaries deteriorates
Solution Approach 1:
The system dynamically adjusts the parking area contour orientation during the parking process. Instead of fixing the orientation based on initial detection, the contour is rotated iteratively to optimize the parking result, allowing the system to compensate for initial detection inaccuracies while maintaining operational speed
Solution Approach 2:
The system changes the orientation parameter of the parking area contour by rotating it around a vertical axis. This parameter adjustment allows the vehicle to be positioned optimally in the parking space even when the initial detection of parking space orientation was inaccurate
2Productivity
If the parking assistance system calculates the parking area contour based on initial vehicle orientation, then the parking process is simpler and faster, but the vehicle is not optimally positioned in the parking space
Solution Approach 1:
The system performs preliminary detection of the parking space and calculates an initial parking area contour quickly. This preliminary action enables fast parking process initiation, while subsequent iterative optimization refines the position accuracy without significantly increasing overall processing time
Solution Approach 2:
The parking area contour is made dynamic through iterative rotation and adjustment. The system continuously optimizes the contour orientation during the parking process to achieve optimal vehicle positioning, transforming a static calculation into a dynamic optimization process
3Device complexity
If the parking assistance system uses a fixed parking area contour orientation, then the system is simpler to implement, but it cannot adapt to parking spaces that require optimized orientation
Solution Approach 1:
The system introduces dynamic rotation capability to the parking area contour, allowing it to adapt to different parking space orientations. This dynamic adjustment mechanism enables the system to handle various parking scenarios while maintaining a relatively simple base implementation through iterative optimization
4Ease of manufacture
If the parking assistance system detects only partial area of the parking space, then the sensor requirements are reduced and cost is lower, but the complete parking situation cannot be accurately determined
Solution Approach 1:
The system performs preliminary detection of the parking space using limited sensors to identify the general area and orientation. This preliminary information is sufficient to initiate the parking process, while iterative optimization compensates for the incomplete initial detection data
Solution Approach 2:
The system uses feedback from the iterative optimization process to refine the parking area contour based on partial initial detection. By continuously adjusting the contour and evaluating parking quality, the system compensates for missing information without requiring complete initial detection
Data Source
AI summary
A method for use of a detected parking space, including: a) detecting a potentially usable parking space by sensing a partial area of the parking space by a vehicle sensor system; b) determining an initial parking area contour and an initial parking area orientation for the detected parking space and determining a quality criterion therefor; c) altering the parking area orientation by rotating the initial parking area contour about a vertical axis, producing a contour with an altered rotational position; d) calculating a modified quality criterion based on the altered rotational position; e) checking whether the quality criterion for the parking space has improved; f) iteratively repeating c) to e) until reaching a termination criterion; g) specifying a final parking target area having a final parking area contour and orientation based on a highest quality criterion; h) manoeuvring so that the vehicle parks in the final parking target area.