Shared Parking Trajectory Adaptation Across Different Vehicles
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Solution Overview
Problem
Existing parking assistance systems struggle to efficiently transfer and adapt a generated trajectory from a first motor vehicle to a second motor vehicle, especially in scenarios like car sharing, due to differences in vehicle characteristics and sensor configurations, leading to potential parking failures or aborts.
Innovation Solution
A method and system that generates and adapts a trajectory for a second motor vehicle by considering parameters like vehicle dimensions, sensor types, and user-specific data, allowing transmission and adaptation outside the vehicle to ensure compatibility and reduce data volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If trajectory data is transferred between motor vehicles with different sensor configurations and vehicle characteristics, then the trajectory can be reused by other vehicles, but the trajectory may not be suitable due to differences in vehicle parameters and sensor types
Solution Approach 1:
The system changes parameters by transmitting vehicle-specific data (sensor types, vehicle dimensions, mass, center of gravity) along with the trajectory. The receiving vehicle then adapts the trajectory by adjusting parameters like lateral offset, longitudinal offset, and steering angle based on its own characteristics, ensuring the trajectory remains reliable across different vehicles.
Solution Approach 2:
The system performs preliminary adaptation by calculating adjusted trajectory values before the actual parking maneuver. The receiving vehicle computes modified lateral positions, longitudinal positions, and steering angles based on its sensor configuration and vehicle parameters, preparing the adapted trajectory in advance to ensure successful parking execution.
2Manufacturing precision
If complete trajectory data including map data is stored and transmitted, then the trajectory can be accurately reproduced, but the data volume becomes large and transmission time increases
Solution Approach 1:
The system extracts and transmits only the essential trajectory parameters (lateral offset, longitudinal offset, steering angle, speed) and key vehicle parameters needed for reproduction, rather than transmitting complete raw sensor data and full map data. This selective extraction maintains trajectory accuracy while significantly reducing data transmission volume and time.
3Reliability
If trajectory is adapted for each specific vehicle, then the parking maneuver succeeds, but the complexity of the system increases
Solution Approach 1:
The system enables self-service adaptation where the receiving vehicle automatically adjusts the trajectory based on its own sensor configuration and vehicle parameters. The vehicle's control system independently computes the adapted trajectory values without requiring manual intervention or complex external adaptation infrastructure, thereby reducing overall system complexity while maintaining high reliability.
Data Source
AI summary
Technologies and techniques for providing an already generated trajectory of a first motor vehicle for at least one second motor vehicle, for future travel along the trajectory via an assistance system. The trajectory is generated by the first motor vehicle and is transmitted to an electronic computing device of the assistance system that is outside the motor vehicle, and in which at least one first parameter characterizing the first motor vehicle is also transmitted to the electronic computing device. The already generated trajectory is evaluated, taking the first characterizing parameter into account, and it is determined whether the trajectory is suitable for the second motor vehicle, and if the already generated trajectory is unsuitable for the second motor vehicle, the trajectory being adapted for the second motor vehicle, taking a second parameter characterizing the second vehicle into account.