Front Parking Trajectory Adjustment for Limited Areas
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Solution Overview
Problem
Current driver assistance systems face challenges in efficiently guiding vehicles into limited areas, such as perpendicular parking spaces, especially when the vehicle is not optimally aligned or when there are obstacles, requiring multiple maneuvers and potentially leading to collisions.
Innovation Solution
A method involving a two-stage driving maneuver with a reverse train followed by a forward train, where environment data is continuously monitored and the trajectory is adjusted to avoid obstacles, allowing the vehicle to enter the limited area in a single move by adapting to the available maneuvering space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the vehicle uses traditional multi-move maneuvers to enter limited areas, then it can handle various alignment scenarios, but it requires multiple reverse and forward moves which increases time and complexity
Solution Approach 1:
The system performs preliminary detection of the limited area boundaries and objects before the driving maneuver begins. The trajectory is pre-calculated taking into account the vehicle's current alignment and the detected environment, allowing the system to determine whether a single forward move is sufficient or if multiple moves are needed, thereby reducing unnecessary maneuvers and time loss.
Solution Approach 2:
The trajectory is dynamically adjusted during the driving maneuver based on real-time environment data. The system continuously monitors the vehicle's position relative to boundaries and objects, and adapts the trajectory parameters (steering angle, speed, path curvature) to achieve the parking goal in fewer moves while handling various alignment scenarios.
2Ease of operation
If the vehicle follows a fixed trajectory for forward parking, then the maneuver is simple to execute, but it may collide with objects or fail to adapt to the actual maneuvering space
Solution Approach 1:
The system continuously receives feedback from environment sensors during the driving maneuver, detecting the vehicle's actual position, distance to boundaries, and location of objects. This feedback is used to dynamically adjust the trajectory parameters in real-time, ensuring collision avoidance and proper adaptation to the available maneuvering space while maintaining simple automated execution for the driver.
Solution Approach 2:
The system autonomously detects environmental constraints and self-adjusts the trajectory without requiring driver intervention. The automated trajectory adjustment system monitors boundary distances and object positions, then automatically modifies steering and path parameters to ensure safe maneuvering, making the system both reliable and easy to operate.
3Loss of time
If the system requires precise initial alignment for single-move forward parking, then the maneuver time is reduced, but it increases the difficulty of operation for drivers
Solution Approach 1:
The system dynamically changes trajectory parameters (steering angle, speed profile, path curvature) based on the vehicle's actual initial alignment. Instead of requiring precise alignment, the system calculates appropriate parameter adjustments that enable single-move or reduced-move parking from various starting positions, thereby reducing maneuver time without increasing driver burden.
Solution Approach 2:
The system replaces the mechanical requirement for precise manual alignment with an automated detection and trajectory calculation system. Sensors and control algorithms compensate for misalignment by computing corrected trajectories, substituting the need for driver skill in precise alignment with automated electronic control that handles various starting positions.
Data Source
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AI summary
The method involves providing environment data with an environment sensor system in a cyclic manner and evaluating the environment data in relation to the limited area and the objects lying opposite to the limited area. A track is determined depending on the limited area and the objects lying opposite to the limited area. A vehicle (1,4,5) is semi-automatically moved along the determined track. The rear vehicle or a front vehicle of the track is adjusted during the driving maneuver depending on the limited area and the objects. Independent claims are included for the following: (1) a computer program for executing the method; and (2) a device for executing the method.