Vehicle Manual Mode Fault Constraints for Continued Operation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
As the complexity of vehicle systems increases, it becomes difficult for conventional controllers to identify and hard-code responses to every fault or combination of faults, leading to vehicles defaulting to a stop mode, limiting their capabilities and causing unnecessary halts, especially in manual operation modes.
Innovation Solution
A primary controller dynamically determines constraints to apply to vehicle operations based on data from various components, aggregating diagnostics from multiple sources and prioritizing conservative constraints to ensure safe operation while allowing continued functionality with faults detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional controllers use hard-coded fault responses, then vehicle safety is ensured, but the vehicle stops unnecessarily in manual mode and loses functionality
Solution Approach 1:
The controller dynamically adjusts fault response behavior based on the detected mode of operation. In autonomous mode, the controller applies conservative hard-coded fault responses to ensure safety. In manual mode, the controller modifies its behavior to allow continued operation with faults, transitioning from static hard-coded responses to dynamic adaptive responses based on operational context.
2Measurement precision
If the controller monitors all components continuously, then fault detection accuracy is improved, but processing power and network bandwidth are wasted when operating in manual mode
Solution Approach 1:
The controller performs partial monitoring based on the mode of operation. In autonomous mode, all components are monitored continuously with full diagnostic depth. In manual mode, the controller reduces monitoring intensity and scope, performing only essential checks while allowing degraded functionality. This partial action approach maintains sufficient fault detection for manual operation while conserving processing resources.
3Reliability
If the vehicle defaults to stop mode upon fault detection, then vehicle safety is maintained, but productivity and operational continuity are reduced
Solution Approach 1:
The controller applies different safety constraints to different operational contexts. In autonomous mode, faults trigger conservative responses that may halt operation to ensure safety. In manual mode, the controller allows continued operation with modified constraints, recognizing that human operators can compensate for certain faults. This local quality approach tailors safety measures to the specific operational context rather than applying uniform stop-all policies.
Data Source
AI summary
Techniques for determining whether to limit an operation of a vehicle while operating in a manually assisted mode of operation are described herein. A vehicle computing system can monitor components of the vehicle and identify a fault associated with a component. The vehicle computing system can determine whether the fault is associated with a manual operation of the vehicle. Based on a determination that the fault is not associated with the manual operation of the vehicle (e.g., fault associated with an autonomous control component), the vehicle computing system can override the fault and enable continued operation of the vehicle in the manually assisted mode of operation. Based on a determination that the fault is associated with the manual operation of the vehicle, the vehicle computing system can cause the vehicle to cease operating.