{
  "$type": "site.standard.document",
  "description": "This application provides a battery heating system (100), an electric vehicle, and an in-vehicle system, which may be applied to the field of electric vehicles. In solutions of this application, a battery can be quickly and evenly heated. The battery heating system (100) includes: a temperature…",
  "path": "/patents/1407938",
  "publishedAt": "2026-01-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M10/425",
    "HUAWEI DIGITAL POWER TECH CO LTD [CN]"
  ],
  "textContent": "This application provides a battery heating system (100), an electric vehicle, and an in-vehicle system, which may be applied to the field of electric vehicles. In solutions of this application, a battery can be quickly and evenly heated. The battery heating system (100) includes: a temperature monitoring unit (110), configured to output a temperature monitoring signal; a voltage conversion unit (130), configured to receive a first voltage (V1) that is input by a power supply (20) or a second voltage (V2) that is input by a to-be-heated battery (30); and a control unit (120), configured to receive the temperature monitoring signal and output a control signal. The voltage conversion unit (130) is configured to perform boosting or bucking processing on the first voltage (V1) based on the control signal or perform boosting or bucking processing on the second voltage (V2) based on the control signal, so that the to-be-heated battery (30) receives a charging current from the power supply (20) in a first time segment by using the voltage conversion unit (130), and the to-be-heated battery (30) outputs a discharging current to the power supply (20) in a second time segment by using the voltage conversion unit (130). In this way, the to-be-heated battery (30) heats itself through alternative charging and discharging.",
  "title": "BATTERY HEATING SYSTEM, ELECTRIC VEHICLE AND VEHICLE-MOUNTED SYSTEM"
}