Route Search System for Automated Driving Interruption Handling
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Solution Overview
Problem
Existing route searching systems for automated driving vehicles often result in excessively long or unavailable routes when considering interruptions, such as lane changes or adverse weather, leading to inefficient navigation.
Innovation Solution
A route searching system that identifies and accounts for interruption sections or predicted interruption sections by acquiring and analyzing interruption information or interruption-predicting information, allowing for the selection of more appropriate routes by adding additional values based on interruption factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a route is searched for avoiding automated-control inapplicable roads, then automated driving control can be performed without interruption, but the route becomes excessively long or unavailable
Solution Approach 1:
The patent changes the parameter of route evaluation by introducing an additional value that quantifies the degree of automated driving control interruption. Instead of binary classification (applicable/inapplicable), the system evaluates routes based on cumulative interruption penalties, allowing selection of routes with acceptable interruption levels rather than completely avoiding interruption zones.
Solution Approach 2:
The patent applies partial action by allowing some degree of automated driving control interruption rather than completely preventing it. The system calculates additional values for routes with interruptions and selects routes where the cumulative additional value remains within acceptable thresholds, accepting partial interruption to maintain route efficiency.
2Reliability
If interruption sections are completely avoided in route search, then automated driving control continuity is improved, but route availability decreases
Solution Approach 1:
The patent transforms the route selection criterion from binary (avoid interruption or not) to a continuous parameter evaluation system. By calculating additional values based on interruption duration and frequency, the system can adaptively select routes that balance automation continuity with overall route availability and usability.
Solution Approach 2:
The patent introduces dynamic route evaluation where the additional value for interruption is calculated based on real-time parameters such as interruption duration, frequency, and location. This dynamic assessment allows the system to adapt route selection to varying conditions, maintaining reliability while preserving route versatility.
Data Source
AI summary
A route searching system, a route searching method, and computer program are provided that enable selection of an appropriate recommended route for a user in consideration of interruption of automated driving control. The route searching system is configured to: when a recommended route from a departure point to a destination including an automated driving section where automated driving control of a vehicle is performed is searched for, acquire a plurality of candidate routes as candidates for the recommended route (S4); for each candidate route, specify an interruption section where the automated driving control is interrupted in the automated driving section in the candidate route (S8, S9); based on the interruption section, for each candidate route, acquire interruption information indicating that the automated driving control is interrupted in the automated driving section in the candidate route (S10); and, based on the interruption information, select the recommended route from the candidate routes (S12).