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The Control Pilot line circuitry examples in SAE J1772:2001 show that the current loop CP–PE is connected permanently on the vehicle side via a 2.74 kΩ resistor, making for a voltage drop from +12 V to +9 V when a cable is hooked up to the charging station, which activates the wave generator.
The project started in February 2011, [4] [1] with an experiment aimed at generating the SAE J1772 pilot signal [5] on an Arduino-compatible ATmega328 8-Bit AVR MCU. Subsequent experiments continued until a prototype J1772-compatible controller was created. As of now, OpenEVSE powers charging stations all over the world. [6]
CCS1 (Combined Charging System Combo 1) plug as used in North America. It is an extension of the J1772 standard AC charging connector. CCS Combo 1 vehicle inlet showing the J1772 and the two DC fast-charging pins Connectors: Incomplete Combo 2 (left) showing the two large direct current (DC) pins below, while the four alternating current (AC) pins for neutral and three-phase are removed, while ...
J1772 has a maximum output of 19.2 kW. [9] In North America, the same Type 2 physical connector is used for three-phase AC charging under the SAE J3068 standard, which uses Local Interconnect Network (LIN) for control signaling based on IEC 61851-1 Edition 3 Annex D. [10] [11] J3068 increases the maximum output to 166 kW using three-phase AC. [9]
From left: IEC Type 1/SAE J1772 inlet; Tesla NACS outlet; IEC Type 2 connector outlet IEC 62196 Plugs, socket-outlets, vehicle connectors and vehicle inlets – Conductive charging of electric vehicles is a series of international standards that define requirements and tests for plugs, socket-outlets, vehicle connectors and vehicle inlets for conductive charging of electric vehicles and is ...
The IEC 62196-2 Type 1 connector (codified under SAE J1772) is the corresponding standard for single-phase AC charging in the United States, Canada, and South Korea. [12] J1772 has a maximum output of 19.2 kW. [13]
Mode 3: slow or fast AC charging using a specific EV multi-pin socket with control and protection functions (i.e. SAE J1772 and IEC 62196-2) Mode 4: DC fast charging using a specific charging interface (i.e. IEC 62196-3, such as CHAdeMO)
The control protocol is a variation of LIN which retains the analog voltage level signaling from SAE J1772. The positive level of the LIN signal waveform can change from 12 volts to 9 or 6 volts (known as State A, State B, and State C in J1772). An earlier version of this LIN-based control protocol was published in Annex D of IEC 61851 edition 3.