{
  "node": {
    "id": "term:control-pilot",
    "type": "Term",
    "label": "Control pilot",
    "properties": {
      "id": "control-pilot",
      "name": "Control pilot",
      "abbr": "CP",
      "aka": [
        "proximity pilot",
        "PP"
      ],
      "section": "topic-infrastructure",
      "definition": "The signal wire in an AC or CCS charging connector: the charger puts a ±12 V square wave on it whose duty cycle tells the vehicle the maximum current, and the vehicle answers by switching resistors. The proximity pilot beside it tells the vehicle a plug is inserted.",
      "related": [
        "sae-j1772",
        "plc-green-phy",
        "ccu",
        "onboard-charger"
      ],
      "url": "https://lemonergy.com/learn/glossary/control-pilot/",
      "mentions": [
        "charger"
      ]
    }
  },
  "edges": [
    {
      "id": "edge:4043",
      "source": "term:control-pilot",
      "target": "topic:topic-infrastructure",
      "type": "belongsTo",
      "properties": {
        "sourceFile": "terms.json"
      }
    },
    {
      "id": "edge:4044",
      "source": "term:control-pilot",
      "target": "term:sae-j1772",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:4045",
      "source": "term:control-pilot",
      "target": "term:plc-green-phy",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:4046",
      "source": "term:control-pilot",
      "target": "term:ccu",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:4047",
      "source": "term:control-pilot",
      "target": "term:onboard-charger",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:mentions/control-pilot/charger",
      "source": "term:control-pilot",
      "target": "term:charger",
      "type": "mentions",
      "properties": {
        "sourceFile": "terms.json",
        "method": "build_glossary.mention_index + mentions",
        "field": "definition",
        "meaning": "Text mention; not a causal claim"
      }
    }
  ],
  "neighbors": [
    {
      "id": "topic:topic-infrastructure",
      "type": "Topic",
      "label": "Charging infrastructure",
      "properties": {
        "id": "topic-infrastructure",
        "name": "Charging infrastructure",
        "lede": "Where and how vehicles are charged: charging strategies, power levels, connectors and the protocols between vehicle and charger.",
        "context": "Separate compatibility from requested average power.",
        "example": "A 100 kW model request does not establish real voltage, current, connector or negotiation compatibility.",
        "lesson_url": "https://lemonergy.com/learn/fundamentals/capacity-and-c-rate/",
        "lesson_label": "Open charging quantities"
      }
    },
    {
      "id": "term:sae-j1772",
      "type": "Term",
      "label": "SAE J1772 and IEC 62196",
      "properties": {
        "id": "sae-j1772",
        "name": "SAE J1772 and IEC 62196",
        "aka": [
          "Type 1",
          "Type 2",
          "CCS"
        ],
        "section": "topic-infrastructure",
        "definition": "The standards that define charging connectors: J1772 Type 1 and the IEC 62196 Type 2 plug for AC, and the Combined Charging System that adds two DC pins below them. Europe mandates Type 2 and CCS2; North America is moving to the NACS connector.",
        "related": [
          "dc-fast-charging",
          "onboard-charger",
          "iso-15118",
          "control-pilot",
          "nacs",
          "chademo"
        ],
        "url": "https://lemonergy.com/learn/glossary/sae-j1772/",
        "mentions": []
      }
    },
    {
      "id": "term:plc-green-phy",
      "type": "Term",
      "label": "HomePlug Green PHY",
      "properties": {
        "id": "plc-green-phy",
        "name": "HomePlug Green PHY",
        "abbr": "PLC",
        "aka": [
          "power-line communication"
        ],
        "section": "topic-infrastructure",
        "definition": "The power-line communication used by CCS charging: a high-frequency signal superimposed on the control-pilot wire carries the DIN 70121 or ISO 15118 messages, so no extra data wires are needed in the plug.",
        "related": [
          "evcc",
          "din-70121",
          "iso-15118",
          "sae-j1772"
        ],
        "url": "https://lemonergy.com/learn/glossary/plc-green-phy/",
        "mentions": []
      }
    },
    {
      "id": "term:ccu",
      "type": "Term",
      "label": "Charging control unit",
      "properties": {
        "id": "ccu",
        "name": "Charging control unit",
        "abbr": "CCU",
        "aka": [
          "charge control unit"
        ],
        "section": "topic-data",
        "definition": "The vehicle-side controller that manages charging: it detects the plug, talks to the charging station over the control pilot or ISO 15118 and DIN 70121, and passes the current and voltage limits the BMS allows. In some bus and truck architectures CCU also names a central or cluster control unit, so the system diagram decides.",
        "related": [
          "evcc",
          "iso-15118",
          "din-70121",
          "bms",
          "onboard-charger",
          "pantograph-charging"
        ],
        "url": "https://lemonergy.com/learn/glossary/ccu/",
        "mentions": [
          "control-pilot",
          "evse"
        ]
      }
    },
    {
      "id": "term:onboard-charger",
      "type": "Term",
      "label": "Onboard charger",
      "properties": {
        "id": "onboard-charger",
        "name": "Onboard charger",
        "abbr": "OBC",
        "section": "topic-infrastructure",
        "definition": "The converter inside the vehicle that turns AC from a home or public socket into DC for the pack, typically rated 7–22 kW. DC fast chargers bypass it, which is why they can be so much more powerful.",
        "related": [
          "charger",
          "dc-fast-charging",
          "cc-cv-charging",
          "un-r10",
          "slow-charging"
        ],
        "url": "https://lemonergy.com/learn/glossary/onboard-charger/",
        "mentions": []
      }
    },
    {
      "id": "term:charger",
      "type": "Term",
      "label": "Charger",
      "properties": {
        "id": "charger",
        "name": "Charger",
        "section": "topic-charging",
        "definition": "The power electronics that convert mains or DC supply into the controlled current and voltage a battery needs. For lithium-ion it runs the CC-CV profile within the limits the BMS communicates, and stops rather than floats when the cell is full.",
        "related": [
          "cc-cv-charging",
          "bms",
          "onboard-charger",
          "dc-fast-charging"
        ],
        "url": "https://lemonergy.com/learn/glossary/charger/",
        "mentions": []
      }
    }
  ]
}