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AEC-21Y-G1 Integrated Charging Control Unit: A New Generation of Invisible EV Charger

Pulished on May. 27, 2025

An electric vehicle charging controller(ev charging control unit), also known as EVSE (Electric Vehicle Supply Equipment) or EVCC (Electric Vehicle Communication Controller), is a device that manages the charging process between the charging station and the electric vehicle. It handles communication, power distribution, and safety issues to ensure a reliable and efficient charging experience.

AEC-21Y-G1 Integrated Charging Control Unit: A New Generation of Invisible EV Charger


Here is a detailed description of its functions:

Main functions:

Communication:

The controller establishes communication between the charging station and the electric vehicle, exchanging information such as charging parameters and status updates.

Power management:

It regulates the current to ensure that the electric vehicle receives the correct charging voltage and current.

Safety:

The controller contains safety features such as overload protection, leakage detection, and isolation checks to prevent damage or danger.

Control:

It can control the start/stop of charging, monitor charging progress, and may manage dynamic load balancing of multiple charging stations.

Integration:

Many modern controllers are designed to integrate with smart charging systems, enabling advanced features such as remote monitoring, payment processing, and vehicle-to-grid (V2G).


Controller types:

AC charging controllers: Designed for standard AC charging, they are commonly used in homes and public charging locations.

DC charge controller: used for faster DC charging, commonly found in fast charging stations.

AC/DC hybrid controller: versatile, supports AC and DC charging for a variety of electric vehicles.


Don't want an ugly charging station on the wall but still want to charge your electric car safely? Then the IVY Invisible AEC-21Y-G1 charging module is the perfect charging station for you. The charging unit is completely concealed in the meter box so that only a type 1&2 socket or cable is visible on the outside. Almost invisible; Connection to 1 or 3-phase, maximum capacity of 22kW; Suitable for any meter box; Can be installed with a socket or charging cable.


Key Features:

Flexible Charging Capabilities:

Supports both Three-phase (up to 21kW) and Single-phase (up to 7.4kW) AC charging.

Maximum charging current: 32A.

Charging Mode: Mode 3.

Compatible with Type 1 (SAE J1772) and Type 2 (IEC 62196-2) charging connectors.

Integrated Metering:

Built-in energy metering with Class 1.0 accuracy.

Pulse constant: 1000 imp/kWh.

Real-time data upload capability.

Comprehensive Safety Protections:

Leakage Protection: AC 30mA and DC 6mA detection.

Over/Under Voltage Protection

Overcurrent Protection

Over-temperature Protection

Short Circuit, Overload, Grounding Protection.

Surge Protection (4KV) & Lightning Protection (4KV).


Multiple Communication Interfaces:

4G LTE: For remote management, control, payment authorization, and firmware updates.

Bluetooth 4.0-5.0 (2.4 GHz): For local parameter configuration and potentially other local interactions.

NFC: For card-based payment and authorization.

RS485: For parameter configuration and system integration.

Proprietary IVY-BUS protocol.

User Interface & Payment Options:

Dot-matrix LCD Display: Shows charging voltage, current, energy consumed, charging time, etc.

LED Status Indicators: For operational status and fault indication.

Touch-sensitive buttons for navigation.

Supports various payment methods: NFC card swipe, mobile payment (via 4G backend), prepayment.

Flexible Operating Modes:

Plug & Play (Local Mode).

Local Authorization Modes: (Dedicated or batch NFC card authorization).

Online Authorization Mode: (NFC card validated via 4G with a central platform).

Prepayment Mode (e.g., QR code payment via operator platform).


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