Vehicle Navigation Data Sharing for Automated Driving
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Solution Overview
Problem
Existing vehicle automation systems require training drives within specific zones for partial or full automation, limiting their ability to operate autonomously without prior knowledge of the zone's infrastructure and topography.
Innovation Solution
A method where a vehicle transmits location data to an external server, which checks for available navigation data for automated driving within that zone and shares this data with other vehicles, allowing them to drive autonomously even without prior training, using sensor data to form and transmit navigation information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vehicle requires training drives within a zone to achieve automated driving, then the vehicle can reliably navigate the zone with known infrastructure, but the vehicle cannot operate autonomously in unfamiliar zones without prior training
Solution Approach 1:
The system performs preliminary mapping of zones by having at least one vehicle traverse the zone and record infrastructure data (road markings, signs, signals, topography) before other vehicles need to operate there. This pre-collected navigation data is stored on a server, enabling subsequent vehicles to drive autonomously in the zone without performing their own training drives, thus resolving the contradiction between reliability and adaptability
Solution Approach 2:
The system creates a digital copy of the physical zone infrastructure through sensor recordings (camera images, LIDAR data, map data) and stores this navigation data on a server. Other vehicles can then use these copied data representations to navigate the zone autonomously without physically traversing it first, enabling unfamiliar vehicles to operate reliably in new zones
2Loss of information
If a vehicle performs training drives to collect navigation data, then the vehicle gains knowledge of the zone infrastructure, but this process is time-consuming and requires the vehicle to physically traverse the zone
Solution Approach 1:
The system merges the navigation data collection function across multiple vehicles and consolidates it on a centralized server. Instead of each vehicle independently performing training drives to collect data, the system combines efforts by having one vehicle collect data that benefits all vehicles, eliminating redundant training drives and reducing overall time loss
Solution Approach 2:
The system performs navigation data collection in advance through preliminary training drives by at least one vehicle. The collected navigation data is stored on a server before other vehicles need it, eliminating the need for those vehicles to perform time-consuming training drives themselves
3Productivity
If navigation data is stored locally in each vehicle, then the vehicle has immediate access to the data, but other vehicles cannot share or utilize the same navigation data
Solution Approach 1:
The system introduces a server as an intermediary between vehicles for navigation data storage and distribution. The server receives navigation data from vehicles that have performed training drives and makes this data available to other vehicles that need to operate in the same zones, enabling both efficient automated driving and broad data sharing across the vehicle fleet
Solution Approach 2:
The server provides universal access to navigation data for all vehicles in the fleet. A single set of navigation data collected by one vehicle can be utilized by multiple other vehicles for the same zone, making the system multi-functional and enabling data sharing that benefits the entire vehicle population
Data Source
AI summary
In a method for operating a vehicle, a location assigned to a driving route of the vehicle is transmitted from the vehicle to an external server, and the server checks whether a zone is assigned to the transmitted location for which navigation data exist for at least partially automated vehicle driving within the zone. The navigation data are transmitted from the server to the vehicle when such a zone is assigned to the transmitted location.