EASTRON DCM6-650/200 meet German Eichrecht standard for DC fast charger

According to Deloitte, global electric vehicle sales will exceed 30 million in 2030, with the United States accounting for 14 percent of the global electric vehicle market (27 percent in Europe and 49 percent in China). While the innovative technology of electric vehicles (EVs) is leading to a reinvention of mobility habits, their deployment on a mass scale is bringing up new technological obstacles. Charging stations are a key example. The future goal is to build a global network to ensure that drivers do not suffer from "range anxiety" and can quickly "charge" at any charging station along their route. Major charging networks are spreading across Europe, supported by and integrated into all economic recovery plans.

Today’s public charging infrastructure mostly supplies alternating current (AC). It cause to a long charging time of more than eight hours on average, due to a low power capability of around 44 kW. Charger manufacturers have always converted alternating current to direct current (DC) outside the car, bypassing the on-board charger (OBC) and directly powering the battery pack of an electric vehicle to reduce charging time.Although this method will increase the charging power to at least 400 kW, the power loss generated during the conversion process should not be charged to electric vehicle owners at all. The German Eichrecht regulations state that consumers should only be charged for the DC power supplied.

The Eichrecht calibration method states that the customer should be able to verify the KWh reading of the station itself, and that the KWh measuring instrument used for billing must be calibrated regularly and visible to the customer(via a display or position the meter itself visible to customer).Moreover, charging stations have a unique public key (which may be displayed as a QR code), and customers can verify the "starting metering value" through an interface from S.A.F.E Initiative's Transparenz software, which complies with German law. This effectively ensures that an EV driver can reliably check how much electricity he is consuming, at what time and at what price.

Without going deep into details, below diagram shall give a simplified view on what Eichrecht means to a common EV driver and how the transparency of EV charge data is secured.

After charging is complete, the charging station generates charging data for the particular customer signed and encrypted  to the IT backend of the charging point operator (CPO). The electronic mobility Provider (EMP) creates an invoice for the customer based on secure signature data provided by the front end.

EASTRON DCM-6 series was developed to meet this market demands for interoperability and data security, can be easily and quickly combined with already deployed charging stations, and is capable of delivering high power up to 650A/1000V.

The DCM-6 series also integrates signed billing data sets according to the S.A.F.E COMF protocol, allowing only billing data to be transmitted with extremely high security. It also has the following characteristics:

EN50470-4 CLASS B

BI-DIRECTIONAL MEASUREMENT

-40~+80 °C

CABLE LOSS CALCULATION

225000+ TRANSACTION RECORDS

3000+ EVENTS RECORDS