Autonomous Vehicle Trajectory Generation From a Walked Path
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Solution Overview
Problem
Existing methods for autonomous vehicle maneuvers in difficult terrain are inefficient as they do not fully utilize the capabilities of partially autonomous vehicles, requiring manual driver intervention to assess drivable paths.
Innovation Solution
A method where a driver walks a path and uses a mobile device to track and generate a trajectory for the vehicle, which is then wirelessly transmitted and verified, allowing for efficient and safe autonomous maneuvers by the vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the driver manually checks the path by getting out of the vehicle, then the path verification accuracy is improved, but the time consumption and operational efficiency deteriorate
Solution Approach 1:
The system creates a digital copy of the physical path by tracking the driver's walked trajectory through coordinate detection. Instead of manually verifying the path, the system generates a digital representation (trajectory) that can be processed and executed automatically by the vehicle's control system, eliminating the need for repeated manual verification while maintaining path accuracy
Solution Approach 2:
The manual mechanical process of path verification (driver walking and visually checking) is replaced by an electronic detection system that automatically tracks coordinates and generates trajectories. The mechanical action of manual path checking is substituted with electronic coordinate detection and automated trajectory generation, significantly reducing time consumption
2Reliability
If the driver manually checks every point of the trajectory, then the navigation safety is improved, but the automation level deteriorates
Solution Approach 1:
The system enables the vehicle to perform path verification autonomously by detecting the driver's walked path and generating executable trajectories without continuous manual intervention. The vehicle's control system processes the detected coordinates and automatically plans the trajectory, allowing the system to serve itself in the navigation process while maintaining safety through automated obstacle detection and path validation
Solution Approach 2:
The system implements a feedback loop where the detected path coordinates are continuously processed to generate and adjust trajectories. The automated system monitors the vehicle's position relative to the planned trajectory and can make real-time adjustments, ensuring navigation safety through continuous feedback while maintaining high automation levels
3Productivity
If the vehicle executes autonomous maneuvers without manual path checking, then the operational efficiency is improved, but the path accuracy deteriorates
Solution Approach 1:
The system performs preliminary path detection by tracking the driver's walked trajectory before autonomous execution. The coordinate detection and trajectory generation are completed in advance, creating a pre-planned path that the vehicle can execute autonomously. This preliminary action ensures path accuracy is established before maneuver execution, allowing efficient autonomous operation without sacrificing precision
Data Source
AI summary
The invention relates to a method for generating a trajectory (22) for a motor vehicle (1), the method comprising the steps of detecting a path (8), which is walked by a person (9) and generating the trajectory (22) for the motor vehicle (1) based on the detected path (8). Furthermore, the invention relates to computer program product, a computer-readable storage medium as well as an assistance system (2).