Dual-Interface EV Charging Control for Automatic Simultaneous Charging
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Solution Overview
Problem
Existing charging systems for electric vehicles struggle with high-power charging, requiring manual selection of dual-gun simultaneous charging, which is complex and inefficient.
Innovation Solution
A charging device with dual interfaces that automatically detects and synchronizes charging based on voltage and communication signals to enable simultaneous charging without manual operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If manual selection of dual-gun simultaneous charging is implemented, then high-power charging capability is achieved, but operation complexity increases
Solution Approach 1:
The charging device automatically detects voltage signals from both charging interfaces and autonomously determines whether to enable dual-gun simultaneous charging without requiring manual user selection. The system self-activates the first and second direct current power supply contacts based on detected voltage signals, making the high-power charging capability accessible through simple plug insertion rather than complex manual configuration.
2Ease of operation
If automatic detection and activation of dual charging interfaces is implemented, then ease of operation improves, but device complexity increases
Solution Approach 1:
The charging device incorporates a universal control mechanism that handles both single-gun and dual-gun charging modes through the same voltage detection and control circuitry. The first and second auxiliary power supply contacts and their corresponding direct current power supply contacts share common control logic, allowing the system to automatically adapt to different charging scenarios without requiring separate complex control systems for each mode.
3Productivity
If voltage signal detection is used to automatically enable dual-gun charging, then productivity improves, but measurement precision requirements increase
Solution Approach 1:
The system uses simple voltage presence detection rather than complex precision measurement to determine whether to enable dual-gun charging. The control logic checks for the presence of voltage signals on the auxiliary power supply contacts, which is a straightforward binary detection task that does not require high-precision measurement equipment, yet still enables automatic activation of high-power charging when conditions are met.
Data Source
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AI summary
This application provides a charging device and a method for charging an electric vehicle by a charging device. The charging device includes a first charging interface and a second charging interface. The first charging interface includes a first auxiliary power supply contact and a first direct current power supply contact. The second charging interface includes a second auxiliary power supply contact and a second direct current power supply contact. The charging device is configured to detect a first voltage signal of the first auxiliary power supply contact and a second voltage signal of the second auxiliary power supply contact; and enable the first direct current power supply contact and the second direct current power supply contact based on the first voltage signal and the second voltage signal to simultaneously charge the electric vehicle.