{
  "$type": "site.standard.document",
  "description": "A user may select a first drive mode or a second drive mode for a hybrid vehicle having the hybrid powertrain from a user interface. The hybrid powertrain may include: a motor-generator unit, a battery electrically connected to the motor-generator unit, an engine, a flywheel engageably connected to…",
  "path": "/patents/1378251",
  "publishedAt": "2026-01-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60W20/20",
    "Caterpillar Inc."
  ],
  "textContent": "A user may select a first drive mode or a second drive mode for a hybrid vehicle having the hybrid powertrain from a user interface. The hybrid powertrain may include: a motor-generator unit, a battery electrically connected to the motor-generator unit, an engine, a flywheel engageably connected to the engine and the motor-generator unit; and a transmission engageably connected to the flywheel and the motor-generator unit. The selected drive mode may be sent to a controller connected to the hybrid powertrain. The controller may divert energy from the flywheel based on the state of charge of the battery and the selection of either the first drive mode or the second drive mode. In the first drive mode, the controller diverts energy from the flywheel to the transmission, and in the second drive mode, the controller diverts energy from the flywheel to the motor-generator unit to charge the battery.",
  "title": "CONTROL SYSTEM FOR A HYBRID VEHICLE"
}