Vehicle Reflash Controller Module Prioritization
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Solution Overview
Problem
Reflashing operations in vehicles are energy-intensive and vulnerable to power loss, leading to potential module damage or failure if the vehicle's charge state drops below a certain threshold during the process, which existing technologies have not adequately addressed.
Innovation Solution
A system and method that categorize reflash operations into critical and non-critical classes, allowing the controller to stop non-critical operations and continue critical ones when the vehicle's charge state falls below a predetermined threshold, ensuring the completion of essential updates and maintaining the vehicle's state of charge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reflash operations are performed to update electronic modules, then system functionality and performance are improved, but the vehicle's energy consumption increases and the state of charge decreases
Solution Approach 1:
The reflash operation management system dynamically adjusts the execution of reflash operations based on real-time monitoring of the vehicle's state of charge. When the state of charge drops below a threshold, the system transitions from executing all scheduled reflash operations to selectively continuing only critical ones, thereby adapting the energy consumption profile to match available energy resources.
Solution Approach 2:
The system segments reflash operations into different priority categories (critical and non-critical). Critical reflash operations are those that must complete to maintain vehicle safety or essential functionality, while non-critical operations can be interrupted or postponed. This segmentation allows selective continuation of operations based on energy availability.
2Productivity
If reflash operations continue when charge state is low, then update completion is maintained, but module damage or failure risk increases
Solution Approach 1:
The system takes preliminary protective action by monitoring the state of charge before and during reflash operations. When the charge state drops below a predetermined threshold, the system preemptively interrupts non-critical reflash operations to prevent the harmful effect of power loss during programming, which could cause module damage or failure.
Solution Approach 2:
The system implements continuous feedback monitoring of the vehicle's state of charge during reflash operations. Based on this real-time feedback, the controller makes dynamic decisions about which operations to continue and which to interrupt, creating a closed-loop control system that balances update completion with module protection.
3Use of energy by moving object
If non-critical reflash operations are stopped to preserve charge, then vehicle state of charge is maintained, but update completeness decreases
Solution Approach 1:
The system segments the reflash operation portfolio into critical and non-critical categories. Critical operations are those that must complete for vehicle safety or essential functionality, while non-critical operations are those that can be postponed without immediate harm. This segmentation enables selective continuation of only critical operations when energy is constrained, accepting partial loss of non-critical updates to preserve overall system reliability.
Data Source
AI summary
An improved system, method, and mechanism for executing and reconfiguring a reflash procedure maintains a vehicle state of charge while avoiding defective reflash operations. In an aspect of the invention, the technique includes receiving a reflash request, i.e., at a controller associated with the vehicle, the reflash request identifying one or more target modules and specifying replacement information. A reflash procedure in accordance with the received request is then begun. However, when and if the charge state of the vehicle drops below a predetermined threshold, the controller modifies the reflash procedure by first categorizing individual ongoing reflash operations and stopping any reflash operations belonging to the second class, while continuing any reflash operations belonging to the first class.