{
  "$type": "site.standard.document",
  "description": "The present invention is a hydraulic pressure control device for an automatic transmission that performs a gear shift by switching between engagement and disengagement of a plurality of friction engagement elements and includes solenoid valves, provided so as to correspond to the friction…",
  "path": "/patents/1415935",
  "publishedAt": "2023-06-21T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F16D48/02",
    "MAZDA MOTOR [JP]"
  ],
  "textContent": "The present invention is a hydraulic pressure control device for an automatic transmission that performs a gear shift by switching between engagement and disengagement of a plurality of friction engagement elements and includes solenoid valves, provided so as to correspond to the friction engagement elements, respectively, that switches between engagement and disengagement of the friction engagement elements by switching between supply and non-supply of hydraulic pressures to the friction engagement elements, and a control device that switches between supply and non-supply of the hydraulic pressures to the friction engagement elements by supplying a predetermined control current to the solenoid valves, in which the control device supplies a fixation preventing current lower than the control current to at least one of the solenoid valves provided so as to correspond to the friction engagement elements in a disengagement state of the plurality of friction engagement elements.",
  "title": "VEHICLE WITH A HYDRAULIC PRESSURE CONTROL DEVICE AND METHOD OF CONTROLLING AUTOMATIC TRANSMISSION"
}