Vehicle Load Shedding With Feedback-Verified Power Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional load shedding methods in vehicles do not adequately consider power availability and lack feedback verification, leading to inefficient power distribution and potential battery degradation or failure.
Innovation Solution
Implement a load shedding system that calculates power and energy availability and uses feedback paths to verify load shedding actions, employing a controller to manage power distribution and selectively reduce electrical loads based on power and energy thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional load shedding methods are used without feedback verification, then the system operation is simple, but power distribution efficiency deteriorates and battery degradation occurs
Solution Approach 1:
The patent implements feedback verification by having the controller receive confirmation signals from devices after load shedding commands are issued. The controller determines whether the device performed the load shed operation by receiving feedback signals and comparing current power levels against expected values. This feedback mechanism ensures accurate power distribution and prevents battery degradation while maintaining systematic control over power management operations.
2Reliability
If load shedding is performed without considering power availability calculations, then the control logic is simple, but battery state of charge deteriorates and electrical system functionality is compromised
Solution Approach 1:
The patent performs preliminary calculations of power availability and energy availability before executing load shedding operations. The controller determines available power based on maximum power and current load, and available energy based on maximum energy and current load. These preliminary assessments ensure that load shedding decisions are made with complete information about system capabilities, thereby maintaining battery state of charge and electrical system functionality while preventing premature or inappropriate load shedding.
3Measurement precision
If feedback verification is implemented to verify load shedding actions, then power distribution accuracy is improved, but system complexity increases
Solution Approach 1:
The patent implements feedback verification by having the controller receive confirmation signals from devices after load shedding commands are issued. The controller determines whether the device performed the load shed operation by receiving feedback signals and comparing current power levels against expected values. This feedback mechanism ensures accurate power distribution and prevents battery degradation while maintaining systematic control over power management operations.
Data Source
AI summary
A method is provided that includes determining whether to perform a load shed operation for a vehicle. The method further includes responsive to determining to perform the load shed operation, issuing a command to a device to perform the load shed operation. The method further includes determining whether the device performed the load shed operation. The method further includes responsive to determining that the device failed to perform the load shed operation, opening a relay associated with the device to prevent power from being delivered to the device.