EV Charging Power Sharing via Contactor Matrix and Power Banks
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Solution Overview
Problem
Existing electric vehicle charging stations often have unused power banks and modules, leading to inefficient use of power resources, especially when high-power charging is required.
Innovation Solution
An electric vehicle charging system that includes a controller to identify available power sources, both internal and external, and divert power from unused power banks or other charging stations to meet the power demands of EV chargers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high-voltage charging stations deliver high power to electric vehicles, then charging speed is improved, but power resource utilization efficiency deteriorates due to unused power banks and modules
Solution Approach 1:
The patent merges multiple power banks and power modules into a unified power pool that can be dynamically allocated. The controller combines available power from various sources (including previously unused power banks) to meet high-power charging demands, transforming isolated underutilized resources into a coordinated system that achieves both high power delivery and efficient resource utilization.
Solution Approach 2:
The system implements dynamic power allocation where the controller continuously monitors and adjusts power distribution based on real-time charging demands and available power sources. This dynamic reconfiguration allows the system to adapt between high-power mode (when needed) and efficient resource utilization mode (by redistributing excess power to previously unused components).
2Reliability
If power banks and modules are allocated to specific EV chargers, then system reliability is improved, but adaptability deteriorates when power demands exceed allocated capacity
Solution Approach 1:
The patent creates a universal power pool where power banks and modules can serve multiple EV chargers rather than being dedicated to single units. The controller manages this multi-functional allocation, allowing any available power source to be assigned to any charger that needs power, thereby maintaining reliability through consistent power delivery while achieving adaptability through flexible resource sharing.
Solution Approach 2:
The controller acts as an intermediary between power sources and EV chargers, decoupling the direct one-to-one allocation relationship. This intermediary manages the many-to-many relationships dynamically, ensuring reliable power delivery to active chargers while adapting to varying power demands by selecting from the full pool of available power sources.
Data Source
AI summary
An electric vehicle (EV) charging system comprises at least a first EV charging station that includes at least a first EV charger and at least one power bank associated with the first EV charger at least one electrical contactor matrix associated with the first EV charger and selectively coupling the first EV charger to the at least one power bank associated with the first EV charger and to at least one other power source; and a controller associated with the first EV charger, the controller configured to determine that the first EV charger requires a greater amount of power than can be provided by the at least one power bank associated with the first EV charger; identify the at least one other power source as available for use; and communicate a signal to divert power from the at least one other power source to the first EV charger.