{
  "node": {
    "id": "term:din-70121",
    "type": "Term",
    "label": "DIN 70121",
    "properties": {
      "id": "din-70121",
      "name": "DIN 70121",
      "aka": [
        "DIN SPEC 70121"
      ],
      "section": "topic-infrastructure",
      "definition": "The German specification for the digital communication between an electric vehicle and a DC charger in the Combined Charging System, the forerunner of ISO 15118. Most DC chargers in Europe still speak it, so vehicles support both.",
      "related": [
        "iso-15118",
        "evcc",
        "ccu",
        "plc-green-phy",
        "sae-j1772"
      ],
      "url": "https://lemonergy.com/learn/glossary/din-70121/",
      "mentions": [
        "charger",
        "electric-vehicle"
      ]
    }
  },
  "edges": [
    {
      "id": "edge:4030",
      "source": "term:din-70121",
      "target": "topic:topic-infrastructure",
      "type": "belongsTo",
      "properties": {
        "sourceFile": "terms.json"
      }
    },
    {
      "id": "edge:4031",
      "source": "term:din-70121",
      "target": "term:iso-15118",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:4032",
      "source": "term:din-70121",
      "target": "term:evcc",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:4033",
      "source": "term:din-70121",
      "target": "term:ccu",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:4034",
      "source": "term:din-70121",
      "target": "term:plc-green-phy",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:4035",
      "source": "term:din-70121",
      "target": "term:sae-j1772",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:mentions/din-70121/charger",
      "source": "term:din-70121",
      "target": "term:charger",
      "type": "mentions",
      "properties": {
        "sourceFile": "terms.json",
        "method": "build_glossary.mention_index + mentions",
        "field": "definition",
        "meaning": "Text mention; not a causal claim"
      }
    },
    {
      "id": "edge:mentions/din-70121/electric-vehicle",
      "source": "term:din-70121",
      "target": "term:electric-vehicle",
      "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:iso-15118",
      "type": "Term",
      "label": "ISO 15118",
      "properties": {
        "id": "iso-15118",
        "name": "ISO 15118",
        "aka": [
          "Plug & Charge",
          "V2G communication"
        ],
        "section": "topic-infrastructure",
        "definition": "The communication standard between an electric vehicle and a charging station: identification, authorisation, charge scheduling and, in the −20 edition, bidirectional power transfer. It is what lets a car authenticate itself and start charging with no card or app.",
        "related": [
          "dc-fast-charging",
          "vehicle-to-grid",
          "iso-17409",
          "can-bus",
          "evcc",
          "din-70121"
        ],
        "url": "https://lemonergy.com/learn/glossary/iso-15118/",
        "mentions": [
          "electric-vehicle",
          "evse",
          "vehicle-to-everything"
        ]
      }
    },
    {
      "id": "term:evcc",
      "type": "Term",
      "label": "EVCC and SECC",
      "properties": {
        "id": "evcc",
        "name": "EVCC and SECC",
        "aka": [
          "electric vehicle communication controller",
          "supply equipment communication controller"
        ],
        "section": "topic-infrastructure",
        "definition": "The two ends of high-level charging communication: the electric vehicle communication controller in the vehicle and the supply equipment communication controller in the charger. They exchange limits, schedules and authorisation over power-line communication on the control-pilot wire.",
        "related": [
          "ccu",
          "iso-15118",
          "din-70121",
          "plc-green-phy",
          "dc-fast-charging"
        ],
        "url": "https://lemonergy.com/learn/glossary/evcc/",
        "mentions": [
          "charger",
          "electric-vehicle"
        ]
      }
    },
    {
      "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: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: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: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": []
      }
    },
    {
      "id": "term:electric-vehicle",
      "type": "Term",
      "label": "Electric vehicle",
      "properties": {
        "id": "electric-vehicle",
        "name": "Electric vehicle",
        "abbr": "EV",
        "aka": [
          "BEV",
          "battery electric vehicle"
        ],
        "section": "topic-applications",
        "definition": "A vehicle driven by an electric motor from a battery charged from the grid. A battery electric vehicle has no engine; it is the largest market for lithium-ion cells and the driver of most pack technology.",
        "related": [
          "hybrid-vehicle",
          "range",
          "pack",
          "regenerative-braking",
          "maritime-battery",
          "industrial-vehicle-battery"
        ],
        "url": "https://lemonergy.com/learn/glossary/electric-vehicle/",
        "mentions": []
      }
    }
  ]
}