Automatic Parking Trajectory via Circular Arc Maneuvers
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Solution Overview
Problem
Current parking aid systems for motor vehicles face challenges in efficiently maneuvering vehicles into tight spaces, often requiring precise positioning and multiple maneuvers, which can be stressful for drivers and may result in vehicle damage or inconvenience to other motorists, especially when the parking space is too small or not optimally suited for the vehicle's dimensions.
Innovation Solution
A method for assisting vehicle parking into a free space using a series of circular arcs, determining the optimal trajectory and number of maneuvers necessary, allowing for fully automatic execution without driver intervention, even when the vehicle is unoccupied, by calculating the vehicle's constraints and environmental factors to ensure safe and efficient parking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If semi-automatic parking devices are used to aid niche maneuvers, then the difficulty of carrying out parking maneuvers is reduced, but the driver must still be present and intervene in the parking process
Solution Approach 1:
The parking system performs the entire parking maneuver automatically without requiring the driver to operate controls or remain attentive. The system determines the parking space, calculates the trajectory, executes the maneuver sequence, and completes parking autonomously, allowing the driver to disengage completely from the parking process.
2Area of stationary object
If one or two maneuver parking strategies are used, then the parking space requirements are reduced, but the vehicle must be correctly positioned and parallel to the parking space to start the maneuver
Solution Approach 1:
The system performs preliminary positioning actions automatically as part of the multi-maneuver sequence. Before executing the final parking entry, the system includes preliminary maneuvers that adjust the vehicle's position and orientation to the correct starting configuration, eliminating the need for the driver to manually position the vehicle parallel to the parking space.
3Adaptability or versatility
If the threshold for number of maneuvers is increased when no vehicle occupant is present, then more parking spaces become accessible, but the risk of damage may increase due to more maneuvers
Solution Approach 1:
The system continuously monitors the parking maneuver execution and environmental conditions, using feedback to adjust the trajectory and maneuver parameters in real-time. This feedback mechanism ensures that even with increased maneuver counts for tighter spaces, the system maintains safe operation by detecting potential collision risks and adjusting the path accordingly.
Solution Approach 2:
The system calculates and plans the entire multi-maneuver sequence in advance, identifying potential collision risks before they occur. By pre-planning the trajectory with sufficient clearance margins and preparing corrective actions ahead of time, the system cushions against potential damage even when performing complex sequences in tight spaces.
Data Source
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AI summary
The present invention concerns a method for assisting the parking of a vehicle (1) from a roadway (12) to an open parking space (10), by means of one or a plurality of slot manoeuvres, comprising the following steps: - determining the length of the open space, - determining an optimum trajectory of movement of the vehicle by successive arcs of a circle, characterised in that it comprises a step of determining the number of manoeuvres Nm required to bring the vehicle (1) into the parking space (10) and in that said manoeuvres are implemented when said number of manoeuvres Nm is lower than a threshold S2.