EV Charging Station Charge Transfer With Local Network Balancing
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Solution Overview
Problem
The limited infrastructure for electric vehicle charging stations hinders the widespread adoption of electric vehicles due to inconvenient and unaffordable recharging options, with existing stations often being scarce and not easily accessible for cross-country travel.
Innovation Solution
A system that includes a cloud server connected to electric vehicle charging stations via a network link, facilitated by a mobile device, allowing for remote management of charging operations, including charge transfer validation, parameter management, and geolocation-based station availability, enabling efficient and convenient charging through wireless connections and telematics platforms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If charging stations are deployed sparsely to cover large geographic areas, then infrastructure cost is reduced, but charging accessibility and convenience deteriorate
Solution Approach 1:
The patent combines multiple charging stations into a local area network where they share resources and coordinate charging operations. The head charging station aggregates demand information from multiple stations, enabling centralized charge balancing across the network. This merging approach allows fewer physical stations to serve more vehicles by optimizing resource allocation across the network.
Solution Approach 2:
Charging stations in the network perform multiple functions: they serve as individual charging points, act as communication nodes in the network, store local charging data, and participate in charge balancing operations. The head station additionally functions as a regional coordinator, managing charge distribution across multiple stations without requiring a central cloud server for every operation.
2Ease of operation
If charging stations are deployed densely to improve accessibility, then charging convenience is improved, but infrastructure cost and complexity increase
Solution Approach 1:
The patent divides the charging infrastructure into autonomous local area networks that operate semi-independently. Each network can function autonomously with its head station managing local charge balancing, reducing the complexity burden on any single station. This segmentation allows dense deployment of simple stations while maintaining coordinated operation through the head station.
3Productivity
If charge balancing is implemented across multiple charging stations, then charging efficiency and load distribution are improved, but system complexity and communication requirements increase
Solution Approach 1:
The head charging station acts as an intermediary between individual charging stations and the cloud server. It aggregates charging demand data from multiple stations, performs local charge balancing calculations, and only communicates essential information with the cloud server. This intermediary role simplifies the overall system by reducing communication overhead and distributing computational complexity to the head station rather than requiring every station to directly interface with centralized systems.
4Reliability
If cloud server management is used for all charging stations, then centralized control and monitoring are improved, but network dependency and communication requirements increase
Solution Approach 1:
The head charging station performs charge balancing calculations and load distribution decisions in advance, before vehicles actually arrive at charging stations. By pre-calculating optimal charge distribution based on predicted demand and current network status, the system reduces the need for real-time cloud server intervention, thereby maintaining centralized control while reducing ongoing network dependency and communication requirements.
Data Source
AI summary
A system for controlling a charging of an electric vehicle, wherein a charging at one electric vehicle charging station affect a charging at another electric vehicle charging station is disclosed. The system includes: an electric power grid, a first electric vehicle charging station connected to the electric power grid, and a second electric vehicle charging station connected to the electric power grid, wherein the first electric vehicle charging station facilitates a charge transfer for an electric vehicle at the second electric vehicle charging station using a mobile device. The mobile device relays communication from the electric vehicle charging stations to the cloud server. The charge transfer request received at the cloud server is authorized using identification information and credit account information received from the mobile device. The charge transfer at the first electric vehicle charging station is adjusted based on a charging level at the second electric vehicle charging station.