{
  "$type": "site.standard.document",
  "description": "The present invention provides a hydraulic shock absorber capable of detecting that a damping force generation mechanism is stuck at a soft characteristic. When a state having abnormality is maintained for a certain time period with the proportional solenoid valves 26 and 27 fixed at a hard side, a…",
  "path": "/patents/967931",
  "publishedAt": "2014-10-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60G17/06",
    "HITACHI AUTOMOTIVE SYSTEMS LTD [JP]"
  ],
  "textContent": "The present invention provides a hydraulic shock absorber capable of detecting that a damping force generation mechanism is stuck at a soft characteristic. When a state having abnormality is maintained for a certain time period with the proportional solenoid valves 26 and 27 fixed at a hard side, a controller determines that the proportional solenoid valve 26 or the proportional solenoid valve 27 is stuck at a soft side, and switches a control mode from a failure mode to a passive mode. As a result, even when the proportional solenoid valve 26 or the proportional solenoid valve 27 is stuck at the soft side, it is possible to secure a ride comfort and running stability of a vehicle.",
  "title": "Hydraulic shock absorber"
}