Graphical electric vehicle CCS type 2 charging socket and charging plug standard

2023-10-16 14:45:55

The left side of the figure below is the CCS Type-2 car charging port defined by the CCS standard, and the right side is the plug of the DC charging cable.

The charging port of the car integrates the AC part (the upper part) and the DC part (the two thick interfaces in the lower part).

CCS type 2 charging socket and charging plug standard.webp

During the AC and DC charging process, the communication between the electric vehicle (EV) and the charging station (EVSE) is carried out through the Control Pilot (CP) interface.

Depending on the market, the AC part of the charging port in Europe and the United States, Japan, and South Korea will be different.

But the functions of the following interfaces are the same:

  • CP - Control Pilot interface transmits analog PWM signals and ISO 15118 or DIN SPEC 70121 digital signals based on power line carrier (PLC) modulation onto analog signals.

  • PP - Proxmity Pilot (also called Plug Presence) interface transmits a signal so that the vehicle (EV) can detect that the plug of the charging gun has been connected. Used to implement an important safety feature - the car cannot move while the charging cable is connected.

  • PE - Productive Earth, grounding protection, is the grounding lead of the equipment.

Several other interfaces are used to transmit power: Neutral (N) line, L1 (AC single-phase), L2, L3 (AC three-phase); DC+, DC- (direct current).

The picture below is an actual charging cable product in the European market that complies with the CCS Type 2 (IEC 62196-2) standard:

CCS2 Plug Connector for EV Charging System

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