EV Charging Assignment by Capability Matching
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Solution Overview
Problem
Existing electric vehicle charging/discharging management systems inefficiently match electric vehicles with high charging/discharging capabilities to charging/discharging devices, leading to prolonged charging/discharging times due to mismatched capabilities.
Innovation Solution
A charging/discharging management system that includes controllers to acquire and compare vehicle and device capabilities, assigning high-capability devices to high-capability vehicles, and optimizing based on distance and battery state to minimize capability differences and charging times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electric vehicles are assigned to charging/discharging devices without considering capability matching, then the system operation is simple, but the charging/discharging time increases due to capability mismatch
Solution Approach 1:
The system performs preliminary acquisition of vehicle capability information and device capability information before assignment. The first acquisition controller obtains vehicle capabilities (maximum charge/discharge rates) and the second acquisition controller obtains device capabilities, enabling informed assignment decisions that match high-capability vehicles with high-capability devices to minimize charging time.
Solution Approach 2:
The system changes the assignment parameter from simple availability to capability matching. By comparing vehicle capability parameters (maximum charge/discharge rates) with device capability parameters, the system dynamically assigns vehicles to devices based on capability compatibility, thereby optimizing charging speed without excessive complexity.
2Ease of operation
If high-capability vehicles are assigned to low-capability devices, then all vehicles can be served, but the charging/discharging time is prolonged due to device limitation
Solution Approach 1:
The system applies local quality by differentiating device assignment based on vehicle capability levels. High-capability vehicles are selectively assigned to high-capability devices, while low-capability vehicles can be assigned to lower-capability devices. This localized optimization ensures that each vehicle receives appropriate service quality matching its needs, preventing time loss for high-capability vehicles while maintaining overall system flexibility.
3Productivity
If capability information is collected and compared for all vehicles and devices, then optimal assignment is achieved, but the information processing complexity increases
Solution Approach 1:
The system segments the information collection and processing functions into separate controllers. The first acquisition controller handles vehicle capability information collection, the second acquisition controller handles device capability information collection, and the assignment controller performs the comparison and assignment. This segmentation distributes complexity across multiple components, making the overall system more manageable while achieving optimal assignment efficiency.
Data Source
AI summary
The charging/discharging time of electric vehicle is shortened. The charging/discharging management system includes: a first acquisition controller configured to acquire vehicle information including vehicle capabilities regarding charging/discharging capabilities of multiple electric vehicles; a second acquisition controller configured to acquire device information including device capabilities regarding charging/discharging capabilities of multiple charging/discharging devices capable of charging/discharging the electric vehicles; and an assigning controller configured to compare the vehicle capabilities and assign the charging/discharging device having a high device capability among the charging/discharging devices for which device information has been acquired in the second acquisition controller, to the electric vehicle having a high vehicle capability.