Dynamic Rear Parking Limit Adjustment for Obstacle-Aware Diagonal Parking
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Solution Overview
Problem
Existing automatic parking systems often fail to recognize suitable parking spaces due to obstacles in the direction of travel, leading to frustration for drivers as they cannot utilize identified spaces for parking.
Innovation Solution
The method adjusts the rear parking limit based on detected obstacles in the direction of travel, allowing the vehicle to park in previously unfeasible spaces by shifting the rear boundary, thus enabling parking in spaces where the front limit cannot be reached, and optimizing the parking trajectory.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rear parking limit is strictly enforced to ensure complete vehicle entry into parking space during first reversing move, then parking reliability is improved, but parking availability deteriorates when obstacles block the front parking limit
Solution Approach 1:
The patent applies dynamics by making the rear parking limit adjustable rather than fixed. The control unit dynamically adapts the rear parking limit based on detected obstacle positions, allowing the system to maintain reliable parking execution while accommodating varying parking scenarios. When obstacles block the front parking limit, the system shifts the rear parking limit forward to enable parking in previously unavailable spaces.
2Manufacturing precision
If the front parking limit is set based on ideal parking conditions, then parking precision is improved, but system adaptability deteriorates when obstacles are present
Solution Approach 1:
The patent implements feedback by continuously monitoring obstacle positions using sensors and adjusting the rear parking limit accordingly. The control unit receives feedback about obstacle locations and modifies the parking limit parameters in real-time, maintaining parking precision while adapting to changing conditions. This closed-loop approach allows the system to preserve precision requirements while becoming adaptable to obstacles.
3Reliability
If multiple parking maneuvers are required to park the vehicle, then parking reliability is improved by ensuring complete entry, but operation complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-calculating and setting an adjusted rear parking limit before the parking maneuver begins. By determining the appropriate rear parking limit in advance based on obstacle detection, the system enables the vehicle to complete parking in a single reversing move without requiring multiple maneuvers, thus maintaining reliability while reducing operational complexity.
Data Source
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AI summary
The invention relates to a method for supporting an automatic parking process of a parking assistance system of a vehicle (10) for parking said vehicle in a parking space (110), in particular a diagonal parking space, comprising the steps of: acquiring sensor signals by means of a sensor (22) of the vehicle (10) for detecting free spaces (100) located next to the vehicle (10) and/or obstacles (200) diagonal or substantially diagonal with respect to the travel direction of the vehicle (10); checking the detected free spaces (100) for their suitability as parking spaces (110) for the vehicle (10); displaying a diagonal parking possibility for the vehicle (10) once the suitability of a free space (100) as parking space (110) has been determined; setting a rear parking limit (40) and a front parking limit (50); acquiring sensor signals by means of at least one sensor (22) of the vehicle (10) for the determination of obstacles (200) in the travel direction of the vehicle (10); and changing the rear parking limit (40) depending on the detected obstacles (200) in the travel direction of the vehicle (10).