EV Charging Power Allocation with Dedicated Synchronization Buses
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In new energy vehicle charging stations, the synchronization of power unit occupation to prevent short circuits and ensure reliable, timely state signal communication is challenged by communication interference and delays, particularly when multiple power allocation modules control the same power unit.
Innovation Solution
A charging device with synchronization buses and power allocation modules that ensure each power unit communicates with only one charging interface at a time, using state synchronization units and circuits to transmit and control state signals, ensuring reliable and real-time synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a communication bus is used to synchronize power allocation modules, then information synchronization between modules is achieved, but reliability and timeliness of state signal synchronization are affected by interference and delays
Solution Approach 1:
The patent divides the single communication bus into multiple dedicated synchronization buses, with each bus dedicated to transmitting state signals for a specific power unit. This segmentation eliminates signal interference between different power units and ensures dedicated, reliable transmission paths for each synchronization signal.
Solution Approach 2:
The patent introduces dedicated synchronization buses as intermediary transmission channels between power allocation modules and power units. These specialized buses act as intermediaries that isolate state signal transmission from other communication traffic, preventing interference and ensuring timely delivery of synchronization signals.
2Productivity
If multiple power allocation modules control the same power unit, then power unit utilization is improved, but short circuit risk increases due to lack of synchronized coordination
Solution Approach 1:
The patent implements a feedback mechanism where each power allocation module continuously monitors the state of controlled power units through dedicated synchronization buses and adjusts its control actions accordingly. This real-time feedback ensures that no two modules simultaneously control the same power unit, preventing short circuits while maximizing utilization.
Solution Approach 2:
The patent replaces mechanical interlocking or physical switching mechanisms with electronic state signal synchronization and logical control. Through dedicated synchronization buses and state signal exchange, the system achieves coordinated control of power units without physical constraints, enabling flexible multi-module control while preventing conflicts through logical coordination.
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A charging device is provided, including a plurality of synchronization buses, a plurality of power units, a plurality of power allocation modules (210, 220, and 230; and 510 and 520), and a plurality of charging interfaces. The plurality of synchronization buses are in one-to-one correspondence with the plurality of power units. Each synchronization bus is connected to the plurality of power allocation modules (210, 220, and 230; and 510 and 520), and is configured to transmit, between at least two power allocation modules (210, 220, and 230; and 510 and 520), a state signal of a power unit corresponding to each synchronization bus, where the state signal indicates a state of communication between the power unit and the charging interface. The charging device can ensure reliability and timeliness of state signal synchronization.