Vehicle Trajectory Generator for Passenger Strategy Selection
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Solution Overview
Problem
In automated driving scenarios, passengers find it difficult to comfortably change the vehicle's movement trajectory when the vehicle is in a traveling state, leading to unnatural trajectories due to the dynamic environment, which limits their ability to adjust the path as desired.
Innovation Solution
A movement trajectory generator that includes traveling environment recognition, movement strategy generation, presentation of setting information to passengers, and a setting mechanism allowing passengers to adjust movement strategies, enabling intuitive and prompt changes to the trajectory, even in dynamic situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the vehicle is in a traveling state (dynamic situation), then the vehicle can maintain automated driving functionality, but the passenger finds it difficult to comfortably perform confirmation of the surrounding environment or the operation
Solution Approach 1:
The patent segments the trajectory control into two levels: movement trajectory (detailed path) and movement strategy (higher-level positioning policy). This segmentation allows the passenger to operate at the strategy level, which requires less attention and is more intuitive, while the system handles the complex trajectory execution. The passenger can simply select from predefined movement strategy candidates rather than manually adjusting detailed trajectory parameters.
Solution Approach 2:
The patent introduces dynamic adjustment of operation modes based on the vehicle state. When the vehicle is in a traveling state, the system provides movement strategy candidates that are easier to select. The presenting means adapts the information presentation based on whether the vehicle is stationary or moving, optimizing the passenger's ability to make changes during dynamic conditions.
2Adaptability or versatility
If the passenger changes the movement trajectory during traveling state, then the passenger can adjust the path, but the passenger is unable to change the movement trajectory as desired, resulting in an unnatural trajectory
Solution Approach 1:
The system performs preliminary action by pre-generating multiple movement strategy candidates based on the current traveling environment recognition. These candidates are prepared in advance and presented to the passenger, who only needs to select from them rather than creating a trajectory from scratch. This ensures that the selected trajectory is both adaptable to passenger preferences and maintains naturalness through system-generated options.
Solution Approach 2:
The system implements feedback by continuously monitoring the passenger's selection and adjusting the movement trajectory accordingly. The presenting means provides setting information about movement strategies to the passenger, and the setting means receives the passenger's operation to select or modify strategies. This feedback loop ensures that the final trajectory reflects both the system's environmental understanding and the passenger's intentions.
3Ease of operation
If the passenger performs the change operation of the movement path when the vehicle is in a stop state, then the passenger can comfortably perform confirmation of the surrounding environment or the change operation, but the passenger has insufficient time to perform the operation when the vehicle is in a traveling state
Solution Approach 1:
By segmenting the control into movement strategy selection rather than detailed trajectory adjustment, the system reduces the time and cognitive load required for passenger operation. The passenger can quickly select from predefined strategy candidates during traveling state without needing extensive confirmation time.
Solution Approach 2:
The system performs preliminary action by pre-calculating and presenting multiple movement strategy candidates before the passenger needs to make a decision. This allows the passenger to review options briefly and make a selection quickly, reducing the loss of time during traveling state while maintaining operation comfort through intuitive presentation.
Data Source
AI summary
A movement trajectory generator that generates a movement trajectory of a vehicle is provided, which includes traveling environment recognition means for recognizing a traveling environment, movement strategy generation means for generating movement strategies for positioning in a road area according to the traveling environment that is recognized by the traveling environment recognition means, presenting means for presenting a passenger setting information of the movement strategies, setting means for receiving an operation for the passenger to set the movement strategies based on the setting information of the movement strategies presented by the presenting means, and movement trajectory generation means for generating the movement trajectory based on the movement strategies set by the setting means.