{
  "$type": "site.standard.document",
  "description": "There is provided a method of diagnosing an electrically operated brake (22, 32) for abnormality thereof in an automotive vehicle having a drive power source (10), a manually operated vehicle accelerating member (44) for increasing an output of the drive power source for accelerating the automotive…",
  "path": "/patents/1100837",
  "publishedAt": "2002-10-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T13/74",
    "TOYOTA MOTOR CO LTD [JP]"
  ],
  "textContent": "There is provided a method of diagnosing an electrically operated brake (22, 32) for abnormality thereof in an automotive vehicle having a drive power source (10), a manually operated vehicle accelerating member (44) for increasing an output of the drive power source for accelerating the automotive vehicle, a manually operated normal brake operating member (34) for operating an electric motor (20, 30) of said electrically operated brake to generate a friction force for braking a wheel (FL, FR, RL, RR) of the automotive vehicle, a parking brake (430), and a manually operated parking brake operating member (42) for activating said parking brake to apply a parking brake to said wheel. A creep torque is applied from said drive power source to said wheel for slowly starting said automotive vehicle while said vehicle accelerating member is placed in a non-operated position thereof. The method further comprises the steps of applying an abnormality checking drive signal to said electric motor (20, 30) of said electrically operated brake (22, 32) when the automotive vehicle is at a stop with said automotive vehicle being braked by said electrically operated brake and said parking brake while said creep torque is applied to said wheel, said driving signal having a magnitude which is determined regardless of an amount of operation of said normal brake operating member (34) such that a braking force generated by said electrically operated brake (22, 32) is larger than said creep torque and determining that said electrically operated brake is abnormal, if said automotive vehicle is started when said parking brake operating member (42) has been operated to a non-operated position thereof while said normal brake operating member is held in an operated position thereof.",
  "title": "Method and apparatus for diagnosing electrically operated brake"
}