{
  "$type": "site.standard.document",
  "description": "An object of the present invention is to improve the accuracy of predicting an in-cylinder intake air amount in a control device that predicts an in-cylinder intake air amount of a supercharged engine and controls the supercharged engine based on the predicted value, and particularly the accuracy…",
  "path": "/patents/968864",
  "publishedAt": "2014-10-15T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D23/02",
    "TOYOTA MOTOR CO LTD [JP]"
  ],
  "textContent": "An object of the present invention is to improve the accuracy of predicting an in-cylinder intake air amount in a control device that predicts an in-cylinder intake air amount of a supercharged engine and controls the supercharged engine based on the predicted value, and particularly the accuracy during transient operation. To achieve this object, the present control device calculates a predicted value of a supercharging pressure based on a predicted value of a degree of throttle opening using a physical model of the supercharged engine, and also calculates a correction amount thereof. When calculating the correction amount, a measurement value of the supercharging pressure measured by a supercharging pressure sensor is acquired, and an estimated value of the supercharging pressure is calculated based on a measurement value of a degree of throttle opening using a physical model of the supercharged engine. A difference between the measurement value and the estimated value of the supercharging pressure is calculated, and the difference is adopted as a correction amount for the predicted value of the supercharging pressure. The present control device calculates a predicted value of the in-cylinder intake air amount based on the corrected predicted value of the supercharging pressure and a predicted value of the degree of throttle opening.",
  "title": "CONTROL DEVICE FOR SUPERCHARGED ENGINE"
}