Vehicle Control for Time-Limited Navigation Data Use
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Solution Overview
Problem
Existing vehicle control systems fail to effectively manage the age of navigation data, leading to potential use of outdated information which can affect vehicle operations, as they lack a mechanism to monitor and disable navigation data based on elapsed time.
Innovation Solution
A control system that associates navigation data with a time point, determines the elapsed time, and disables the use of the data accordingly, either by deleting it or preventing its use, using a counter or clock signal to ensure timely updates and prevent outdated data from influencing vehicle functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If navigation data is continuously stored and used without time monitoring, then data availability is maintained, but data freshness and reliability deteriorate
Solution Approach 1:
The control system associates navigation data with a time point stamp in advance, enabling future determination of data age without requiring continuous real-time monitoring. This preliminary timestamping action allows the system to later evaluate whether the data is still current before use.
Solution Approach 2:
The system continuously determines the elapsed time since the navigation data time point and uses this feedback to control whether the data should be used or disabled. This closed-loop feedback mechanism ensures data reliability by automatically preventing use of outdated navigation information.
2Reliability
If navigation data is disabled after elapsed time determination, then data freshness is ensured, but system complexity increases
Solution Approach 1:
The control system performs the time point association and elapsed time determination in advance, before the navigation data needs to be used. This preliminary timing setup simplifies the overall control logic by preparing all necessary time information beforehand, reducing the complexity of real-time decision-making.
Solution Approach 2:
The system extracts the time point information from the navigation data package and handles it separately through dedicated determination logic. By isolating the time management function, the system maintains clear separation of concerns and reduces overall control system complexity.
Data Source
AI summary
Aspects of the present disclosure relate to a control system for a host vehicle. The control system comprises one or more controllers. The control system is configured to associate navigation data for the host vehicle with a value indicative of a time point; determine an indication of time elapsed since the time point; and disable use of said navigation data based on the result of the determination. Aspects of the disclosure also relate to a vehicle, a control method and a non-transitory computer readable medium.