EV Charging Station Service Selection via Vehicle-Station Communication
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Solution Overview
Problem
Current electric vehicle charging infrastructure lacks user-friendly interfaces for customers to easily determine charging costs and times, as existing methods do not account for user preferences and available service options, leading to inefficiencies in energy usage and charging duration.
Innovation Solution
A method where an electric vehicle communicates its state of charge and desired charging time to a charging station, which then determines the required energy and selects suitable service offers from multiple options, including different tariffs and energy sources, and transmits this information back to the vehicle for user selection, allowing for optimized charging based on user preferences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If charging stations provide multiple service offers with different tariffs and energy sources, then user choice and customization are improved, but device complexity increases
Solution Approach 1:
The charging service is segmented into multiple independent service offers, each with distinct characteristics (tariffs, energy sources, pricing models). This allows users to select from discrete options without overwhelming complexity, as each service offer is a self-contained unit with clearly defined parameters.
Solution Approach 2:
A communication interface acts as an intermediary between the charging station, central office, and user's vehicle. This intermediary manages the complexity of multiple service offers by standardizing information exchange and presenting simplified choices to users, while handling the intricate details of service configuration in the background.
2Loss of information
If the system provides detailed information about energy requirements and charging time, then user awareness and decision-making are improved, but information processing complexity increases
Solution Approach 1:
The system performs preliminary calculations of energy requirements and charging times before presenting service offers to users. By pre-computing these parameters based on the vehicle's battery state and selected services, the system reduces information processing complexity during user interaction, as the data is already prepared and structured for presentation.
Solution Approach 2:
The system provides feedback to users about energy requirements, charging times, and cost implications of different service offers. This feedback loop allows users to make informed decisions while the system continuously monitors and adjusts information based on user selections and system state, managing complexity through iterative refinement rather than overwhelming upfront information.
3Reliability
If charging stations are deployed in public areas with supply network connection, then energy availability is improved, but infrastructure complexity increases
Solution Approach 1:
The charging station is designed as a universal interface that connects to the existing public supply network while providing specialized EV charging functionality. By leveraging the existing infrastructure's universal connectivity and adding layered charging capabilities, the system achieves reliable energy availability without proportionally increasing overall infrastructure complexity.
Data Source
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AI summary
The invention relates to a method for charging electrical vehicles by connecting an electrical vehicle to a charging station for extracting electrical energy. A particularly simple selection of a variety of service offerings is possible according to the invention in that at least one charge status of a battery and one desired charge duration is determined on the vehicle side, the energy required to completely charge the battery is determined on the vehicle side, information at least about the required energy and the charge duration at the charge station is transmitted on the vehicle side and at least one service offering matched to the determined information from a plurality of various service offerings is received on the vehicle side by means of the charging station using the information obtained.