EV Battery Warning Display Using Achievable Speed Prediction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for monitoring vehicle battery conditions in electric vehicles do not provide a forward-looking assessment of available battery power, leading to unnecessary warnings and difficulty in deciding whether to continue a journey based on detected battery conditions.
Innovation Solution
A method and system that acquires and processes measured values to determine the current battery power and vehicle-specific parameters, providing a predictive warning in the form of a permanently achievable maximum speed, which is displayed only when necessary, using integrated detection and display units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous warning monitoring is implemented, then battery safety is improved, but driver annoyance increases due to unnecessary warnings
Solution Approach 1:
The system performs preliminary calculations of achievable speed before displaying warnings. By pre-computing the relationship between battery state and achievable speed, the system can predictively warn drivers only when limitations will actually occur, avoiding unnecessary continuous warnings while maintaining safety monitoring.
Solution Approach 2:
The system changes the monitoring parameter from generic battery state indicators to specific achievable speed predictions. This parameter transformation allows the system to provide meaningful, context-specific warnings only when speed limitations will genuinely impact driver plans, reducing unnecessary alerts while maintaining comprehensive safety monitoring.
2Device complexity
If simple battery condition indicators are used, then system complexity is reduced, but predictive accuracy of available power decreases
Solution Approach 1:
The system introduces achievable speed as an intermediary parameter between raw battery measurements and driver information needs. This intermediary transformation allows the system to use complex battery parameter monitoring and calculations while presenting simplified, intuitive speed-based information to drivers, maintaining both accuracy and usability without requiring the driver to understand complex battery chemistry or parameters.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a method for displaying a warning (4) for warning of limited battery power, for use in an electric vehicle, comprising the steps of: capturing (32) measurement values for determining a current battery power of a stored energy source of the electric vehicle by means of a detection unit (24); determining (34) a current battery power of the stored energy source on the basis of the captured measurement values by means of a processing unit (22); capturing (36) measurement values for determining vehicle-specific parameters by means of a detection unit (26); determining (38) vehicle-specific parameters on the basis of the captured measurement values by means of the processing unit (22); determining (40) a warning (4) for warning of limited battery power on the basis of the current battery power of the stored energy source and on the basis of the vehicle-specific parameters by means of the processing unit (22); and displaying (42) the warning (4), in the event of limited battery power, using a display means (14), the warning (4) being the sustainably achievable maximum speed.