Vehicle Energy Supply Coverage for Load Function Availability
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Solution Overview
Problem
Existing energy supply management systems in vehicles fail to accurately determine the energy requirement of load units, leading to premature vehicle stops despite sufficient energy availability, which can result in unsafe or inefficient operation, especially in safety-critical situations.
Innovation Solution
An energy supply management system that determines the availability of load unit functions, calculates energy requirements based on these functions, and selectively utilizes main and auxiliary energy supply units to ensure sufficient energy coverage, including redundancy and reserve units to maintain safe vehicle operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the auxiliary energy supply unit is used to cover energy requirements after main supply failure, then vehicle safety is improved, but premature stopping occurs due to insufficient energy coverage assessment
Solution Approach 1:
The system continuously monitors the actual energy requirement of load units and feeds this information back to the energy supply management. This feedback mechanism enables dynamic adjustment of energy supply strategies, allowing the auxiliary energy supply unit to be used effectively without causing premature vehicle stopping, thus maintaining both safety and operational continuity.
Solution Approach 2:
The system performs preliminary determination of energy requirements for load units before main supply failure occurs. By assessing and storing this energy coverage information in advance, the system can quickly switch to auxiliary supply without premature stopping, improving both the reliability assessment and operational continuity during emergency situations.
2Device complexity
If the auxiliary energy supply unit capacity is limited, then system complexity is reduced, but energy coverage becomes insufficient for continued operation
Solution Approach 1:
The system dynamically changes operational parameters by identifying and prioritizing essential load units based on their energy requirements and functional importance. By adjusting which loads are maintained during auxiliary supply operation, the system extends the effective operation duration without increasing auxiliary supply capacity or system complexity.
Solution Approach 2:
The system segments load units into different priority categories based on their energy consumption and functional importance. This segmentation allows the auxiliary energy supply unit to effectively support critical functions for extended periods, maximizing operation duration while maintaining simple system architecture.
3Speed
If the stopping process is initiated immediately upon main supply failure, then safety response time is improved, but premature stopping occurs due to inaccurate energy requirement assessment
Solution Approach 1:
The system performs preliminary assessment of the auxiliary energy supply unit's coverage capability for each load unit before main supply failure. This pre-assessment data is stored and immediately accessed upon failure, enabling fast response while ensuring accurate stopping decisions based on actual energy availability rather than conservative estimates.
Solution Approach 2:
The system uses real-time feedback on actual energy consumption and auxiliary supply capacity to dynamically adjust the stopping decision timeline. This feedback mechanism enables rapid response while preventing premature stopping by continuously updating the accurate energy coverage status during the transition period.
Data Source
AI summary
An energy supply management system for a vehicle, includes at least one energy supply system with at least one energy supply unit and at least one load unit which can be supplied with energy by the at least one energy supply system in order to be supplied with energy. The energy supply management system is configured so as to determine the availability of functions of the at least one load unit, an energy requirement based on the determined availability of functions of the at least one load unit, and the energy which can be provided by the at least one energy supply unit in order to cover the energy requirement.