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The charging station puts 12 V on the Control Pilot (CP) and the Proximity Pilot (AKA Plug Present: PP) measuring the voltage differences. This protocol does not require integrated circuits, which would be required for other charging protocols, making the SAE J1772 robust and operable through a temperature range of −40 °C to +85 °C.
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.
The PP, or Proximity Pilot, pin carries a low-voltage signal and is used to determine the status of the vehicle connector. When the button on the plug is depressed to unlock the connector, a switch on the Proximity Pilot circuit is opened, stopping the flow of electricity. Pin usage is the same as the SAE J1772 connector when used for AC ...
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 ...
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 ...
Bill Gates told Patrick Collison that younger generations should worry about four things. They are the climate crisis, unchecked AI, nuclear war, and the spread of disease.
On J1772 there is no "Proximity Pilot". There is a "Control Pilot" and a "Proximity". Confusingly, "Proximity Pilot" is a distinct, third thing that is used on Type 2 / Mennekes connections for the (removable) cable to signal its current capacity upstream to the EVSE. E.g. so a 16-amp rated cable plugged in to a 32 amp EVSE won't get overloaded.
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