{
  "$type": "site.standard.document",
  "description": "The object of this invention is to detect an abnormality of a roll-motion restricting device including a hydraulic circuit. It is possible to determine that a fluid leakage takes place if actual fluid pressure in fluid passages 72, 74 connecting the corresponding fluid chambers of front-wheel-side…",
  "path": "/patents/1071990",
  "publishedAt": "2005-12-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60G17/0162",
    "TOYOTA MOTOR CO LTD [JP]"
  ],
  "textContent": "The object of this invention is to detect an abnormality of a roll-motion restricting device including a hydraulic circuit. It is possible to determine that a fluid leakage takes place if actual fluid pressure in fluid passages 72, 74 connecting the corresponding fluid chambers of front-wheel-side hydraulic cylinder 30 and rear-wheel-side hydraulic cylinder 60 is lower than a value determined by a lateral acceleration value of a vehicle. On the basis of a relationship between a state of rolling of the vehicle and the fluid pressure, the hydraulic circuit can be diagnosed for any abnormality. In the event of detection of an abnormality, solenoid-operated shut-off valves 100, 102 are closed to isolate the two hydraulic cylinders 30, 60 from each other, and isolate one of the hydraulic cylinders or a portion of the fluid passage, which suffers from the fluid leakage, from the other hydraulic cylinder, so that this other hydraulic cylinder can generate a fluid pressure difference depending upon the rolling state of the vehicle, enabling a stabilizer bar to generate a resilient force, whereby the deterioration of a roll-motion restricting effect can be made smaller, than in the case where the two hydraulic cylinders are disabled to normally function.",
  "title": "SUSPENSION SYSTEM FOR MOTOR VEHICLE"
}