Hybrid AV Map Linking Coverage Lanes for Mode-Transition Routing
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Solution Overview
Problem
Autonomous vehicle maps are incomplete as they do not account for lanes where vehicles can operate in partially-autonomous or manual modes, leading to reduced routing options and processing inefficiencies.
Innovation Solution
A hybrid map is generated by combining autonomous vehicle map data with coverage map data, linking autonomous vehicle lanes with coverage lanes to enable fully-autonomous, partially-autonomous, and manual mode operations, using a computer system to determine route links and modify maps based on operational indications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If autonomous vehicle maps only include lanes for fully-autonomous operation, then the map structure remains simple and processing is efficient, but routing options are limited and the map does not account for partially-autonomous or manual mode lanes
Solution Approach 1:
The patent segments the roadway into different lane types (AV lanes for fully-autonomous operation and coverage lanes for partially-autonomous or manual operation). This segmentation allows the map to include multiple lane types without creating a completely new complex structure,而是 building upon the existing AV map framework by adding coverage map data and establishing linkages between lane types.
Solution Approach 2:
The hybrid map structure is designed to be universal by accommodating multiple operational modes (fully-autonomous, partially-autonomous, and manual) within a single map framework. The map can represent different lane types and operational indications, making it versatile for various routing scenarios while maintaining a unified data structure that builds on conventional AV map formats.
2Reliability
If the map includes only AV lanes, then processing efficiency is maintained, but the map is incomplete for routes requiring mode transitions
Solution Approach 1:
The patent performs preliminary actions by pre-establishing linkages between AV lanes and coverage lanes in the hybrid map structure, and by pre-associating operational indications with different lane types. This preliminary structuring enables efficient routing decisions during AV operation, as the system does not need to perform complex real-time analysis to determine mode transitions or lane compatibility.
3Adaptability or versatility
If the hybrid map links AV lanes with coverage lanes, then comprehensive routing options are enabled, but the complexity of determining and managing lane linkages increases
Solution Approach 1:
The patent introduces an intermediary hybrid map structure that mediates between the AV map and coverage map. This hybrid map serves as a bridge that pre-establishes linkages between AV lanes and coverage lanes, and pre-associates operational indications. This intermediary structure simplifies the routing process by providing a ready-to-use framework that indicates where mode transitions can occur, rather than requiring complex real-time analysis of lane compatibility.
Data Source
AI summary
A method for receiving autonomous vehicle (AV) map data associated with an AV map of a geographic location and coverage map data associated with a coverage map of the geographic location. The AV map data is associated with an AV lane of a roadway in the geographic location, and the coverage map data is associated with a coverage lane of the roadway in the geographic location. The method includes generating a hybrid map of the geographic location based on the AV map data and the coverage map data and providing hybrid map data associated with the hybrid map for routing of an AV. The hybrid map includes the AV lane linked with the coverage lane of the roadway.