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    CONSTANT-CLUTCH OPERATION AT POWER TOOL START-UP
    2.
    发明公开
    CONSTANT-CLUTCH OPERATION AT POWER TOOL START-UP 审中-公开

    公开(公告)号：EP4346092A1

    公开(公告)日：2024-04-03

    申请号：EP23194964.5

    申请日：2023-09-01

    申请人： Black & Decker, Inc.

    发明人： MATHEW, Sona R. ,  NACE, Daniel F. ,  McKILLICAN, Jason D. ,  KING, Christopher T.

    IPC分类号： H02P29/02

    摘要： A method of operating a power tool having a motor and a controller is provided. The method includes: setting a protection time limit associated with a condition of the motor; taking protective action to shut down the motor if the condition of the motor persists for a duration of the protection time limit; and in response to occurrence of the condition during a start-up period of operation of the motor, extending the protection time limit for a duration of a constant-clutch time period to allow an output speed of the motor to reach or exceed a speed threshold, and taking protective action to shut down the motor if the output speed of the motor remains below the speed threshold for the duration of the constant-clutch time period.