Hybrid AV Map Linking Coverage Lanes Across Driving Modes
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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 efficiency and processing delays, as they lack detailed information for these modes, resulting in fewer routing options and higher processing demands.
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, providing a more comprehensive routing solution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If autonomous vehicle maps include only AV lanes with fully-autonomous mode data, then the map structure remains simple and processing demands are reduced, but the map becomes incomplete and routing options are limited
Solution Approach 1:
The map is segmented into distinct lane types (AV lanes and coverage lanes) with different levels of detail and autonomous operation support. AV lanes contain comprehensive data for fully-autonomous operation, while coverage lanes provide basic geometric information for partially-autonomous or manual mode routing, allowing the system to handle multiple operation modes without overwhelming complexity
Solution Approach 2:
The patent adds a new dimension to the map structure by incorporating coverage lanes that represent roadway segments without full AV lane coverage. This creates a multi-layered map structure where lanes exist at different levels of detail and autonomous operation support, enabling the routing system to provide options across multiple dimensions of autonomous operation
2Productivity
If autonomous vehicle maps include only AV lanes with fully-autonomous mode data, then processing demands are reduced, but processing delays occur due to incomplete information
Solution Approach 1:
Instead of requiring complete AV lane data for all roadway segments, the system accepts partial information in the form of coverage lanes that provide basic geometric and location data. This partial information is sufficient for routing decisions in partially-autonomous and manual modes, eliminating processing delays caused by waiting for complete AV lane data while maintaining routing efficiency
3Adaptability or versatility
If autonomous vehicle maps link AV lanes with coverage lanes, then comprehensive routing solutions are enabled, but the complexity of map generation and data integration increases
Solution Approach 1:
The map generation process is segmented into independent components: AV lane data processing and coverage lane data processing. These segments can be generated and updated independently through different data sources and processing pipelines, then integrated through standardized linking mechanisms, reducing the overall complexity of map generation and maintenance
Solution Approach 2:
The hybrid map structure serves multiple functions simultaneously: it supports fully-autonomous operation routing through AV lanes, partially-autonomous operation routing through coverage lanes, and provides a unified framework for both map types. This multi-functionality eliminates the need for separate routing systems for different operation modes, simplifying the overall system architecture despite the increased map complexity
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.