Autonomous Driving Route Presearch for Diverging Point Deviations
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Solution Overview
Problem
The existing autonomous driving systems experience interruptions in cooperation between the electronic control unit and the navigation device due to the time required for rerouting, which causes temporary loss of route information and disrupts autonomous driving control when a vehicle deviates from a recommended route.
Innovation Solution
The autonomous driving device proactively searches for multiple extra routes from a diverging point to a target position before the vehicle reaches that point, allowing the electronic control unit to receive and utilize route information for seamless transition to an alternative route, preventing interruptions in cooperation between the electronic control unit and the navigation device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the navigation device searches for extra routes in real-time when the vehicle departs from the recommended route, then the system can provide alternative route information, but the search process temporarily interrupts the cooperation between the electronic control unit and the navigation device, causing loss of autonomous driving control
Solution Approach 1:
The navigation device proactively searches for and stores multiple extra routes to the target position before the vehicle actually departs from the recommended route at a diverging point. This preliminary route search eliminates the need for real-time searching when departure occurs, preventing interruption of the cooperation between the electronic control unit and navigation device, thereby maintaining continuous autonomous driving control while ensuring route alternative capability is available
2Loss of time
If the navigation device performs route search after the vehicle passes the diverging point, then the search can be executed, but the electronic control unit cannot receive extra route information in time, causing temporary interruption of autonomous driving control
Solution Approach 1:
The system performs the route search action in advance before the vehicle passes the diverging point, storing multiple extra routes in the navigation device's memory. This eliminates the time delay that would occur if searching were performed after departure, ensuring that route information is immediately available to the electronic control unit when needed, thus preventing control interruptions
3Productivity
If the navigation device searches for extra routes after vehicle departure from the recommended route, then the search can proceed, but the electronic control unit temporarily controls autonomous driving without extra route information, disrupting cooperation
Solution Approach 1:
The navigation device completes the extra route search and stores the results in its memory before the vehicle departs from the recommended route. This ensures that when the vehicle actually leaves the recommended route at the diverging point, the electronic control unit immediately has access to multiple extra route options, eliminating any information gap and maintaining continuous cooperative control between the navigation device and electronic control unit
Data Source
AI summary
An autonomous driving device includes a navigation device configured to search a plurality of routes, from a diverging point to a target position, for one or more extra routes other than a recommended route before a vehicle passes the diverging point wherein the diverging point is a point where the vehicle is expected to pass; and an electronic control unit configured to control autonomous driving of the vehicle based on information on a particular extra route when the vehicle departs from the recommended route at the diverging point and travels on the particular extra route wherein the particular extra route is one of the one or more extra routes.