Intersection Lane Selection Using Collision Risk and Road Topology
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Solution Overview
Problem
Intelligent vehicles face challenges in selecting lanes at intersections, balancing efficiency with safety, which can compromise user experience and safety due to potential collisions with obstacles.
Innovation Solution
A lane selection method that determines collision risks and probabilities based on obstacle information and road topology, using sensors and computing platforms to select the safest lane for exit, and provides prompts to the driver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the vehicle selects a lane based on traffic efficiency, then the efficiency of passing through the intersection is improved, but the safety of the vehicle passing through the intersection deteriorates
Solution Approach 1:
The lane selection method dynamically adjusts the selection criteria based on real-time collision risk assessment. The system transitions from a static efficiency-based selection to a dynamic risk-adjusted selection, where the lane choice changes according to the current safety状况 of obstacles in each lane.
Solution Approach 2:
The invention changes the selection parameter from purely traffic efficiency to a composite parameter that includes both efficiency and collision risk. By introducing collision risk as a new parameter in the decision-making process, the system achieves a balance between efficiency and safety.
2Reliability
If the vehicle prioritizes safety by avoiding obstacles, then the safety of the vehicle is improved, but the driving experience of the user deteriorates
Solution Approach 1:
The system provides feedback to the user through the display device, showing the selected exit lane and the reasoning behind the selection. This transparency in the decision-making process improves user experience by making the safety-oriented lane selection understandable and acceptable to the driver.
3Reliability
If the vehicle performs comprehensive collision risk assessment for multiple obstacles, then the safety is improved, but the calculation overhead increases
Solution Approach 1:
The invention extracts and focuses on the critical factor of collision risk from the complex environment at the intersection. By specifically identifying and assessing obstacles that may collide with the vehicle during exit, the system avoids unnecessary calculations related to all other environmental factors.
Data Source
AI summary
Provided are a lane selection method and apparatus, and a vehicle. The method may be applied to the field of intelligent driving. The method includes: when a vehicle is at an intersection, obtaining information about an obstacle around the vehicle and road topology information; determining a plurality of lanes based on the road topology information, and determining a collision risk between the vehicle and the obstacle based on the information about the obstacle, where the plurality of lanes are lanes through which the vehicle exits the intersection; and selecting, based on the collision risk, a first lane from the plurality of lanes to exit the intersection. When passing through the intersection, the vehicle may select a lane based on the collision risk between the vehicle and the obstacle. This helps improve safety of the vehicle passing through the intersection, thereby improving driving experience of a user.