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公开(公告)号:US20160151934A1
公开(公告)日:2016-06-02
申请号:US14905721
申请日:2014-07-18
Applicant: HILTI AKTIENGESELLSCHAFT
Inventor: Ralf Pfeifer , Tobias Drexi
IPC: B28D7/00 , G05B19/416 , B23Q17/12 , B28D1/14 , B23Q15/08
CPC classification number: B28D7/005 , B23Q15/08 , B23Q17/12 , B25D2250/201 , B25D2250/221 , B28D1/14 , G05B19/416 , G05B2219/49074 , G05B2219/50041
Abstract: A method to control a power tool including the method steps: specifying the rotational speed of the drive at a first value, measuring a first amplitude of a signal, filtering the signal within a frequency range, measuring a second amplitude of the filtered signal, reducing the rotational speed of the drive to a second value if the first amplitude exceeds a first quantity and if the second amplitude exceeds a second quantity, and incrementally increasing the rotational speed of the drive to the first value, whereby each incremental increase of the rotational speed only takes place once the first amplitude remains below the first quantity for a time interval, and the second amplitude remains below the second quantity. A power tool that uses this method, includes: a drive, an acceleration sensor a filter, and a control unit.
Abstract translation: 一种用于控制电动工具的方法,包括以下步骤:将驱动器的转速指定为第一值,测量信号的第一幅度,对频率范围内的信号进行滤波,测量滤波信号的第二幅度,减少 如果第一幅度超过第一数量,则驱动器的转速达到第二值,并且如果第二幅度超过第二数量,并且逐渐地将驱动器的转速增加到第一值,由此每次增加转速 只有在第一幅度保持低于第一数量的时间间隔的情况下才发生,并且第二幅度保持低于第二数量。 使用该方法的电动工具包括:驱动器,加速度传感器,过滤器和控制单元。