{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "Systems and methods described herein concern estimating the mass of a vehicle. One embodiment uses a slope estimator to estimate the grade of a roadway on which the vehicle is traveling; inputs state estimates from the slope estimator, an estimated wheel force, and an estimated wheel acceleration…",
  "path": "/patents/1357317",
  "publishedAt": "2024-01-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60W40/13",
    "Toyota Motor Engineering & Manufacturing North America, Inc."
  ],
  "textContent": "Systems and methods described herein concern estimating the mass of a vehicle. One embodiment uses a slope estimator to estimate the grade of a roadway on which the vehicle is traveling; inputs state estimates from the slope estimator, an estimated wheel force, and an estimated wheel acceleration to a secondary mass estimator that calculates a first estimated mass of the vehicle; selects, based at least in part on the first estimated mass, a calibration value using a tuning map; inputs the calibration value, the estimated wheel force, the state estimates, and a measurement noise value to a main mass estimator that calculates a second estimated mass of the vehicle that is more accurate than the first estimated mass due, at least in part, to the calibration value; and adjusts automatically one or more operational parameters of the vehicle based, at least in part, on the second estimated mass.",
  "title": "METHODS AND SYSTEMS FOR ESTIMATING THE MASS OF A VEHICLE"
}