Vehicle Map Update Decisions Based on Control Failure Relevance
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Solution Overview
Problem
Existing map update systems unnecessarily update map information even when it does not affect vehicle control, leading to increased effort and resource utilization.
Innovation Solution
A map update system that includes a failure determination unit to assess whether vehicle control failures are caused by map information, and an update determination unit to only update the map information when necessary, based on inspection results from in-vehicle devices and a server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If map information is constantly updated based on detected changes, then map data currency is improved, but unnecessary updates increase effort and resource utilization
Solution Approach 1:
The system performs preliminary assessment by comparing detected feature changes with vehicle control requirements before executing updates. The failure determination unit evaluates whether map changes would affect vehicle control, and only then does the update determination unit proceed with updates, preventing unnecessary update operations in advance
Solution Approach 2:
The system implements feedback mechanisms where detection results are continuously evaluated against vehicle control requirements. The failure determination unit provides feedback on whether detected changes are relevant to vehicle control, creating a closed-loop system that adjusts update decisions based on actual control needs rather than simply responding to all detected changes
2Measurement precision
If all detected map changes are updated, then map accuracy is improved, but resource utilization increases unnecessarily
Solution Approach 1:
The system applies different update qualities to different types of map changes based on their relevance to vehicle control. Critical changes that affect vehicle control receive full update treatment, while non-critical changes are filtered out, creating localized quality assessment rather than uniform update application across all detected changes
3Reliability
If map information is updated frequently, then map currency is improved, but system complexity increases
Solution Approach 1:
The update determination system is segmented into distinct functional units: a failure determination unit that assesses vehicle control impact, and an update determination unit that decides on updates based on failure assessment. This segmentation allows each unit to focus on specific decision criteria, reducing overall system complexity compared to a monolithic update system
Data Source
AI summary
By a map update system, an in-vehicle device, or a server, it is determined whether a failure is in vehicle control executed by a vehicle controller configured to control behavior of a vehicle using map information stored in a storage mounted on the vehicle. Further, the map update system or the server, it is determined to whether to update the map information.