EV Charging Master Controller for Sequential Multi-Vehicle Charging
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Solution Overview
Problem
The financial burden of providing dedicated charging stations for each electric vehicle and the inefficiency of charging vehicles that remain parked longer than needed pose challenges in managing electric vehicle charging facilities.
Innovation Solution
An electric vehicle charging master controller that includes an instruction processing unit, user interface module, and charging interface module, which coordinates the charging of multiple vehicles using a smaller number of stations, allowing vehicles to be charged sequentially or based on priority and power rates, and stops charging when cessation criteria are met.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated charging stations are provided for each electric vehicle, then charging reliability is improved, but device complexity and financial burden increase
Solution Approach 1:
The charging station is designed to serve multiple electric vehicles sequentially rather than being dedicated to a single vehicle. The controller manages multiple vehicles sharing one charging station, reducing the total number of stations needed while maintaining charging reliability through coordinated control
Solution Approach 2:
Multiple charging functions are merged into a single charging station. The system combines the ability to charge multiple vehicles over time into one station, reducing device complexity and financial burden while maintaining service capability
2Device complexity
If vehicles are charged sequentially one at a time, then device complexity is reduced, but productivity decreases
Solution Approach 1:
The charging system implements periodic action by cycling through multiple vehicles in sequence. The controller periodically switches charging current between different vehicles based on their charging status and priorities, maintaining productivity through continuous cyclic operation rather than static single-vehicle charging
Solution Approach 2:
The system introduces dynamics by allowing the charging sequence and duration to be adjusted based on vehicle priorities, battery states, and user preferences. The controller dynamically allocates charging time slices to different vehicles, optimizing productivity while using a single charging station
3Ease of operation
If vehicles remain parked longer than needed, then ease of operation is improved, but loss of time increases
Solution Approach 1:
The system implements feedback by continuously monitoring vehicle charging status, battery levels, and user preferences. The controller uses this feedback to determine optimal charging cessation criteria, stopping charging when vehicles have received adequate charge rather than requiring vehicles to remain parked for extended idle periods
Solution Approach 2:
The system performs preliminary action by pre-calculating charging durations and priorities based on vehicle battery states and user preferences before charging begins. This allows the controller to optimize charging schedules in advance, reducing idle parking time while maintaining ease of operation
Data Source
AI summary
An electric vehicle charging master controller includes an instruction processing unit, a user interface module, and a charging interface module. Electric vehicle (EV) charging equipment is external to the controller. The instruction processing unit is configured to execute instructions for charging electric vehicles (EVs). The charging interface module is configured to receive information from the instruction processing unit and transmit information to the EV charging equipment. The instruction processing unit is configured to transmit information to the charging interface module, which is designed to cause the EV charging equipment to direct charging current to the plurality of EVs, one at a time. The instruction processing unit is also configured to transmit information to the charging interface module designed to cause the EV charging equipment to stop the charging current to each EV when a charging cessation criterion has been met.