AEM EV Combined Charging Unit (CCU)

The AEM EV Combined Charging Unit (CCU) combines both an On-Board Charger (OBC) and a DC-DC Converter (DCDC).

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AEM EV Combined Charging Unit (CCU)

The OBC charges the HV Battery Pack by taking 120v or 240v AC energy from the grid, converting it to high voltage DC and charging the high voltage battery in the vehicle. The DC-DC converter takes the high voltage from the battery pack and converts it to low voltage to maintain the charge in the vehicles 12V battery. The DC-DC converter performs the duties that the alternator does in an ICE vehicle. The CCU is fully controlled by the VCU via the CAN bus and the OBC and DC-DC report voltage, current and status information back to the VCU.

Combining the functions of an OBC and a DC-DC converter into a single module simplifies the EV drive system. The AEM EV CCU is very compact and lightweight, while offering high efficiency, stable charging, long life, high protection level, and high reliability. The AEM CCU is 100% driven via CAN by the VCU in conjunction with the BMS-18, and is not directly controlled by the charge plug connector or the off vehicle EVSE (Electrical Vehicle Service Equipment).

6.6kw (32 amps) on board charger + 2.5kw DC-DC converter
350Vdc nominal output and up to 450Vdc max
Plug-and-play with AEM’s EV controls
Liquid cooled and temperature controlled for efficient thermal management
Lightweight (5.5kg, ~12 pounds) comparable units are typically 18-24 pounds
Compact design (275mm x 202mm x 68mm =3.8L volume) – 2.5x to 3x smaller than comparable units
The HV battery charger is rated at 93.5% efficiency at full load
The DCDC LV output is rated at 91.5% efficiency at full load with a max continuous DCDC output of 178A @ 14V
The CCU has the following protection functions:
Input over and under voltage protection
High voltage output over and under voltage protection
High and low voltage output short circuit protection
Over temperature protection

Brand: AEM EV
Emission Code: 5
Height: 68mm
Length: 275mm
Product Type: Charger
Weight: 12 lbs
Width: 202mm
UPC: 090127469248
Part Number: 30-8405


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