EV Range Forecasting With Temperature-Based Charging Alerts
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Solution Overview
Problem
The uncertainty about the driving range of electric vehicles due to ambient temperature fluctuations, known as 'range anxiety', hinders the widespread adoption of electric vehicles.
Innovation Solution
A method and system that utilize temperature forecast data to manage electric vehicle range by determining the driving distance to charging stations or destinations, informing users of potential range deficiencies, and offering mobile charging services if necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If temperature forecast data is used to determine vehicle range, then range management accuracy is improved, but system complexity increases
Solution Approach 1:
The system performs preliminary actions by acquiring temperature forecast data before the vehicle needs to be driven, and proactively notifies users of potential range deficiencies before they occur. This allows the system to account for temperature effects on battery range in advance, improving accuracy without requiring complex real-time adjustments during driving.
Solution Approach 2:
Temperature forecast data acts as an intermediary element that mediates between environmental conditions and vehicle range prediction. Instead of directly measuring complex battery performance under varying temperatures, the system uses temperature forecasts as a proxy to estimate range changes, simplifying the overall system while maintaining accuracy.
2Reliability
If users are notified of range deficiencies in advance, then reliability is improved, but loss of time increases
Solution Approach 1:
The system applies partial action by notifying users of range deficiencies only when temperature forecasts indicate potential problems, not continuously or excessively. This selective notification approach maintains reliability by alerting users to genuine risks while minimizing unnecessary time loss from frequent or premature warnings.
3Adaptability or versatility
If mobile charging services are offered as a solution, then adaptability is improved, but device complexity increases
Solution Approach 1:
The notification system serves multiple functions: it alerts users to range deficiencies, provides temperature-based context, and offers charging solutions (both stationary and mobile). This multi-functionality increases adaptability to different user needs and scenarios without requiring separate dedicated systems for each function.
Data Source
AI summary
A method for managing range of an electric vehicle includes acquiring temperature forecast data for an upcoming time period and determining a range of the electric vehicle over the upcoming time period in view of the temperature forecast data. The method also includes determining a driving distance from the electric vehicle to a stationary electric vehicle charging station. Additionally, the method includes informing a user of the electric vehicle if, at one or more times during the upcoming time period, the range of the electric vehicle will be less than a threshold relative to the driving distance from the electric vehicle to the stationary electric vehicle charging station. Further, another method for managing range of an electric vehicle may take into account distance to one or more intended destinations.