Vehicle Route Control With Automatic Default Path Selection
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Solution Overview
Problem
Current vehicle control systems face challenges in ensuring safe movement of vehicles when they lack a known route location, leading to increased collision risks due to the absence of protection from off-board components.
Innovation Solution
A vehicle control system that includes onboard components to determine potential routes using off-board data, present these routes to operators, and automatically adjust vehicle movement if no selection is made within a designated time, ensuring safe navigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle control system requires operator selection of route from presented options, then the system maintains operational control and safety, but the response time increases and productivity decreases due to waiting for operator input
Solution Approach 1:
The system performs preliminary actions by automatically selecting a default route from the presented options when the operator does not make a selection within a predetermined time period. This preliminary automatic selection ensures that the vehicle can proceed without unnecessary delays while maintaining safety through the initial presentation of validated route options.
Solution Approach 2:
The system dynamically adjusts its behavior based on operator response time. It transitions from a static waiting state to an automatic decision-making state when the operator fails to select a route within the predetermined time period, thereby adapting to the operational context to balance safety and productivity.
2Productivity
If the vehicle control system automatically selects a default route when no operator selection is made, then productivity is maintained by reducing delays, but the risk of selecting an incorrect route increases
Solution Approach 1:
The system incorporates feedback mechanisms by continuously monitoring operator responses and vehicle status. The automatic default route selection is based on feedback from the presented route options and the operator's lack of selection within the predetermined time period, ensuring that the automatic choice is made from valid, safe options rather than arbitrary selections.
Solution Approach 2:
The system performs self-service by automatically selecting a default route from the presented options when the operator does not make a selection. The onboard component independently makes the routing decision based on the available information and predetermined criteria, reducing dependency on continuous operator input while maintaining operational integrity.
3Reliability
If the onboard component presents multiple route options to the operator, then the system ensures safe navigation by validating routes, but the device complexity increases due to additional processing and presentation components
Solution Approach 1:
The system extracts and separates the complex routing validation and presentation functions into a dedicated onboard component. This component specifically handles the generation and presentation of safe route options, isolating the complexity from the rest of the vehicle control system and making it manageable through functional decomposition.
Solution Approach 2:
The onboard component acts as an intermediary between the off-board component (which provides route data) and the operator (who makes selections). It processes the raw route information, validates safety constraints, presents filtered options to the operator, and handles automatic selection, thereby mediating the complex interactions between different system elements.
Data Source
AI summary
A vehicle control system and method may obtain a route data file for a network of first routes that the vehicle system is headed toward from the off-board component, determine a set of potential routes from the first routes in the network using the route data file, present the set of the potential routes to an operator of the vehicle system, determine whether a selection of a selected route of the potential routes is received from the operator, and automatically change movement of the vehicle system responsive to not receiving the selection of the selected route.