公开(公告)号：EP4283308A1

公开(公告)日：2023-11-29

申请号：EP22858304.3

申请日：2022-08-02

申请人： Hitachi Construction Machinery Co., Ltd.

发明人： ITO, Hiroki ,  LE, Tien Trien ,  KUNIOKA, Shogo ,  SHINPO, Tomoaki ,  TSUKUI, Hiroshi

IPC分类号： G01P7/00

摘要： The purpose of the present invention is to provide a speed measurement device with which it is possible to accurately identify the highest travel speed of a work machine using the result of measurement by an acceleration sensor. The speed measurement device according to the present invention: detects, from within a record of the travel acceleration of a work machine, a change point at which the work machine transitions from an accelerating state to a steady travel state; and identifies the highest travel speed from a record of the travel speed in a period later than the change point.