BYD was granted a patent for coordinate-based train control.

{
  "signal_id": "16e26f9e-37f5-5edd-a7d3-7038b859e9f8",
  "signal_type": "patents-company",
  "signal_subtype": "patentGrant",
  "detected_at": "2026-10-14T15:22:22+00:00",
  "company": {
    "name": "BYD",
    "domain": "byd.com"
  },
  "data": {
    "cpc": [
      {
        "code": "B61L 27/20"
      },
      {
        "code": "B61L 25/025"
      }
    ],
    "tags": [
      "Intellectual Property",
      "Research & Development",
      "Automation",
      "Automotive"
    ],
    "detail": "In October 2026 BYD patented a rail-control system for managing train movement along planned routes across connected track sections.",
    "summary": "BYD was granted a patent for coordinate-based train control.",
    "event_at": "2026-10-13",
    "inventors": [
      {
        "name": "Xi Zhang",
        "status": "unresolved",
        "is_primary": true
      },
      {
        "name": "Yedi Xiao",
        "status": "unresolved",
        "is_primary": false
      },
      {
        "name": "Chujun Chen",
        "status": "unresolved",
        "is_primary": false
      },
      {
        "name": "Weihua Liu",
        "status": "unresolved",
        "is_primary": false
      }
    ],
    "event_kind": "grant_date",
    "grant_date": "2026-10-13",
    "source_url": "https://patents.google.com/patent/US12759602",
    "cpc_primary": {
      "code": "B61L 27/20"
    },
    "patent_title": "Train control method and system based on combined coordinate system, and controller",
    "patent_number": "US12759602",
    "uspto_assignee": "BYD Company Limited",
    "patent_abstract": "A train control method, based on a combined coordinate system, includes: obtaining a target combined coordinate system corresponding to a planned train path, the target combined coordinate system comprising a plurality of basic coordinate systems with boundary logic sections, and each of the basic coordinate systems forming a physical link relationship with another basic coordinate system of the basic coordinate systems through the boundary logic sections; obtaining position information of a train located in the planned train path sent by the train, and determining preceding train information of a preceding train preceding to the train based on the position information and the physical link relationships between the basic coordinate systems; and performing a train control strategy on the train based on the preceding train information.",
    "precision_class": "structural",
    "invention_explanation": "A controller links multiple local track maps at their boundaries, creating one continuous route reference for locating and directing a train.",
    "technologies_mentioned": [
      "train control",
      "rail signaling",
      "coordinate systems",
      "transportation automation"
    ]
  }
}

curl https://signals.autobound.ai/v1/signals/16e26f9e-37f5-5edd-a7d3-7038b859e9f8 \
  -H "X-API-KEY: $AUTOBOUND_API_KEY"

curl -X POST https://signals.autobound.ai/v1/companies/enrich \
  -H "X-API-KEY: $AUTOBOUND_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"domain":"byd.com","limit":20}'