{
  "$type": "site.standard.document",
  "description": "A road friction coefficient estimating unit (28) calculates a tire sideslip angle (²) and a cornering force (CF), and estimates a road friction coefficient on the basis of the ratio (”CF/A²) of the calculated cornering force (CF) to the calculated tire sideslip angle (²). A vehicle travels on…",
  "path": "/patents/985282",
  "publishedAt": "2013-03-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T8/172",
    "JTEKT CORP [JP]"
  ],
  "textContent": "A road friction coefficient estimating unit (28) calculates a tire sideslip angle (²) and a cornering force (CF), and estimates a road friction coefficient on the basis of the ratio (”CF/A²) of the calculated cornering force (CF) to the calculated tire sideslip angle (²). A vehicle travels on multiple road surfaces that differ in road friction coefficient (µ), and tire sideslip angles (²) and cornering forces (CF) on the road surfaces are detected in advance. The road friction coefficient estimating unit (28) stores, in a memory (29), a correlation among the detected tire sideslip angles, the detected cornering forces, and the road friction coefficients in the form of numerical values or a mathematical expression, and estimates a road friction coefficient using the correlation stored in the memory (29).",
  "title": "Road friction coefficient estimating unit and road friction coefficient estimating method"
}