发明名称 AUTOMATIC DRILLING ASSISTANCE
摘要 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.
申请公布号 EP3022027(A1) 申请公布日期 2016.05.25
申请号 EP20140744294 申请日期 2014.07.18
申请人 HILTI AKTIENGESELLSCHAFT 发明人 PFEIFFER, RALF;DREXL, TOBIAS
分类号 B28D7/00;B23Q15/12 主分类号 B28D7/00
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