EV Charging Current Allocation With Stepwise Fair Distribution
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Solution Overview
Problem
Existing electric current distribution systems fail to utilize infrastructure to its full potential, leading to inefficient allocation of charging resources and unfair distribution of electric power to vehicles.
Innovation Solution
A controller that dynamically allocates electric current through a stepwise procedure, reassessing requests and adjusting allocations to ensure even distribution and fairness, prioritizing engine heaters and premium clients, and allowing non-loading nodes to receive current when all others are maximally charged.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electric current is distributed using traditional charging systems, then vehicles can be charged, but the distribution infrastructure is not utilized to its full potential
Solution Approach 1:
The patent implements dynamic current distribution where the controller continuously adjusts current allocation based on real-time vehicle battery states, charging priorities, and infrastructure capacity. This dynamic approach allows the system to adapt to changing conditions and maximize infrastructure utilization, resolving the contradiction between static traditional charging and optimal energy allocation.
Solution Approach 2:
The system incorporates feedback mechanisms where the controller monitors battery charge levels, charging rates, and infrastructure status, then uses this information to optimize current distribution. This closed-loop control enables the system to learn from operational data and improve allocation efficiency, thereby increasing infrastructure productivity while reducing energy waste.
2Adaptability or versatility
If electric current is allocated to multiple vehicles simultaneously, then more vehicles can be served, but fair and efficient distribution becomes difficult to achieve
Solution Approach 1:
The patent applies local quality by assigning different charging priorities and current allocation rates to different vehicles based on their specific needs, battery states, and service categories (e.g., premium vs. standard service). This differentiated approach allows the system to serve multiple vehicles simultaneously while maintaining fairness through customized allocation strategies for each local context.
Solution Approach 2:
The system performs preliminary assessments of vehicle charging needs, battery states, and priority levels before allocating current. By pre-evaluating and categorizing charging requests, the controller can establish fair allocation rules in advance, making it easier to manage multiple vehicles simultaneously while ensuring equitable distribution according to predetermined criteria.
3Productivity
If the controller continuously monitors and reassesses current requests, then allocation efficiency improves, but system complexity increases
Solution Approach 1:
The patent implements self-service mechanisms where vehicles communicate their charging needs and status autonomously to the controller, which then automatically adjusts allocation without human intervention. This automated self-regulating system reduces the operational complexity burden while maintaining high allocation efficiency through continuous monitoring and adaptive response to changing conditions.
Data Source
AI summary
Electric current is dynamically distributed to vehicles, which each is connected to a respective consumer node in a distribution network receiving a total amount of incoming electric current via a root interface. Current is allotted to each node in the distribution network according to a stepwise procedure, wherein amounts of current is gradually allotted to the nodes until all of the total amount of electric current has been allotted, or at least one threshold criterion is fulfilled. A respective amount of current requested by each consumer node is repeatedly reassessed, and if for a particular consumer node, a requested amount of current is lower than an amount of current allotted to the node, the amount of electric current allotted to the particular consumer node is decreased to the amount of current requested by that node.