{
  "node": {
    "id": "term:vdv-301",
    "type": "Term",
    "label": "VDV 301",
    "properties": {
      "id": "vdv-301",
      "name": "VDV 301",
      "aka": [
        "VDV-Schrift 301",
        "ITxPT"
      ],
      "section": "topic-standards-vehicle",
      "definition": "The VDV recommendation on the IP-based on-board network of a bus, the basis of the European ITxPT architecture. It is how battery state, charging status and energy data from the vehicle reach the operator’s fleet systems in a standard form.",
      "related": [
        "vdv",
        "fms-interface",
        "electric-bus",
        "fleet-telematics"
      ],
      "url": "https://lemonergy.com/learn/glossary/vdv-301/",
      "mentions": []
    }
  },
  "edges": [
    {
      "id": "edge:3853",
      "source": "term:vdv-301",
      "target": "topic:topic-standards-vehicle",
      "type": "belongsTo",
      "properties": {
        "sourceFile": "terms.json"
      }
    },
    {
      "id": "edge:3854",
      "source": "term:vdv-301",
      "target": "term:vdv",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:3855",
      "source": "term:vdv-301",
      "target": "term:fms-interface",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:3856",
      "source": "term:vdv-301",
      "target": "term:electric-bus",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:3857",
      "source": "term:vdv-301",
      "target": "term:fleet-telematics",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    }
  ],
  "neighbors": [
    {
      "id": "topic:topic-standards-vehicle",
      "type": "Topic",
      "label": "Vehicle and transport standards",
      "properties": {
        "id": "topic-standards-vehicle",
        "name": "Vehicle and transport standards",
        "lede": "The regulations and standards a vehicle battery must meet to be approved, and the rules for shipping batteries by road, sea and air.",
        "context": "Check issuing organization, edition, scope and market.",
        "example": "Shipping tests and vehicle battery approval tests address different uses; passing one does not automatically satisfy another.",
        "lesson_url": "https://lemonergy.com/learn/fundamentals/battery-basics/",
        "lesson_label": "Open battery basics"
      }
    },
    {
      "id": "term:vdv",
      "type": "Term",
      "label": "VDV",
      "properties": {
        "id": "vdv",
        "name": "VDV",
        "aka": [
          "Verband Deutscher Verkehrsunternehmen"
        ],
        "section": "topic-standards-vehicle",
        "definition": "The German association of public-transport operators, whose published recommendations — the VDV-Schriften — have become de-facto specifications for buses across Europe. Several define how electric buses, their batteries and their charging are specified, tested and operated.",
        "related": [
          "vdv-230",
          "vdv-261",
          "vdv-301",
          "vdv-238",
          "electric-bus"
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        "mentions": []
      }
    },
    {
      "id": "term:fms-interface",
      "type": "Term",
      "label": "FMS interface",
      "properties": {
        "id": "fms-interface",
        "name": "FMS interface",
        "aka": [
          "FMS standard",
          "bus FMS"
        ],
        "section": "topic-pack",
        "definition": "The manufacturer-independent CAN data interface of trucks and buses, defined by the major European OEMs, that exposes vehicle data — including, for electric vehicles, battery state of charge, charging status and energy consumption — to fleet-management telematics.",
        "related": [
          "can-bus",
          "vdv-301",
          "fleet-telematics",
          "state-of-charge",
          "electric-bus",
          "j1939"
        ],
        "url": "https://lemonergy.com/learn/glossary/fms-interface/",
        "mentions": [
          "differential-electrochemical-mass-spectrometry"
        ]
      }
    },
    {
      "id": "term:electric-bus",
      "type": "Term",
      "label": "Electric bus",
      "properties": {
        "id": "electric-bus",
        "name": "Electric bus",
        "abbr": "e-bus",
        "section": "topic-applications",
        "definition": "A battery-electric city or coach bus, with packs of 300–700 kWh on the roof and at the rear, LFP or NMC, charged overnight in the depot or at the terminus by pantograph. Its duty cycle — long hours, deep daily cycles, a twelve-year life — makes battery aging the central engineering question.",
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          "depot-charging",
          "pantograph-charging",
          "vdv",
          "sort-cycle",
          "total-cost-of-ownership",
          "opportunity-charging"
        ],
        "url": "https://lemonergy.com/learn/glossary/electric-bus/",
        "mentions": [
          "kilowatt-hour"
        ]
      }
    },
    {
      "id": "term:fleet-telematics",
      "type": "Term",
      "label": "Fleet telematics",
      "properties": {
        "id": "fleet-telematics",
        "name": "Fleet telematics",
        "section": "topic-applications",
        "definition": "The systems that collect battery state, consumption and fault data from each vehicle in a fleet and bring them to the depot and the operator. For an electric bus fleet they are what turns BMS data into charging plans and warranty cases.",
        "related": [
          "fms-interface",
          "vdv-301",
          "depot-charging",
          "state-of-health",
          "electric-bus",
          "data-logger"
        ],
        "url": "https://lemonergy.com/learn/glossary/fleet-telematics/",
        "mentions": [
          "bms"
        ]
      }
    }
  ]
}