{
  "$type": "site.standard.document",
  "description": "The invention relates to a brake booster control device and a control method in which based on at least one of when an output (master cylinder pressure) larger by a predetermined amount than an output (master cylinder pressure Pr) expected from a current applied to the solenoid 6 in the brake…",
  "path": "/patents/1101723",
  "publishedAt": "2002-09-18T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T13/72",
    "HITACHI LTD [JP]"
  ],
  "textContent": "The invention relates to a brake booster control device and a control method in which based on at least one of when an output (master cylinder pressure) larger by a predetermined amount than an output (master cylinder pressure Pr) expected from a current applied to the solenoid 6 in the brake booster 4 is obtained, when an output (master cylinder pressure) larger by a predetermined amount than a control target output (target master cylinder pressure) is obtained and when an output variation larger by a predetermined amount in an increasing direction than a variation component of the control target output (target master cylinder pressure) is obtained, it is judged that the driver has pressed the brake pedal (5). In conventional vehicle brake control devices, in order to judge whether a driver has pressed a brake pedal (5), a stroke sensor and a brake pedal pressing force sensor had to be installed which required a complex attachment structure and time for attachment work and for attachment position adjusting work of the sensors.",
  "title": "Device and method for controlling a brake booster"
}