{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "A marine propulsion system includes a marine propulsion device, a battery and a controller. The marine propulsion device includes a propeller shaft, an engine and an electric motor. The marine propulsion device transmits mechanical power from at least one of the engine and the electric motor to the…",
  "path": "/patents/1418771",
  "publishedAt": "2024-05-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L50/66",
    "YAMAHA MOTOR CO LTD [JP]"
  ],
  "textContent": "A marine propulsion system includes a marine propulsion device, a battery and a controller. The marine propulsion device includes a propeller shaft, an engine and an electric motor. The marine propulsion device transmits mechanical power from at least one of the engine and the electric motor to the propeller shaft. The battery supplies electric power to the electric motor. The controller controls the marine propulsion device such that the marine propulsion device is switchable among a plurality of drive modes including a first drive mode and a second drive mode. The first drive mode brings about a state where the mechanical power is transmitted from only the engine to the propeller shaft. The second drive mode brings about a state where the mechanical power is transmitted from only the electric motor to the propeller shaft when the engine is in an idling state.",
  "title": "MARINE PROPULSION SYSTEM AND CONTROL METHOD"
}