公开(公告)号：US20220205886A1

公开(公告)日：2022-06-30

申请号：US17354966

申请日：2021-06-22

申请人： Xiangtan University

发明人： Zengsheng Ma ,  Dian Peng ,  Yichun Zhou

IPC分类号： G01N3/06 ,  G01N3/08 ,  G05B13/02 ,  G06N5/04

摘要： A load control method of an indenter based on fuzzy predictive control and a system, acquiring the actual measured force value of a sensor in the loading stage; acquiring the expected force value of the nth cycle in the loading stage; calculating a first error and a change rate; establishing and optimizing a fuzzy predictive controller; determining the movement steps of a motor in the loading stage; acquiring the actual measured value of the sensor in the full load stage; acquiring the expected force value of the nth cycle in the full load stage and calculating a second error; controlling the movement of the motor; acquiring the actual measured force value of the sensor in the unloading stage; acquiring the expected force value of the nth cycle in the unloading stage; calculating a third error and a change rate; determining the movement steps of the motor in the unloading stage.

公开(公告)号：US11747245B2

公开(公告)日：2023-09-05

申请号：US17354966

申请日：2021-06-22

申请人： Xiangtan University

发明人： Zengsheng Ma ,  Dian Peng ,  Yichun Zhou

IPC分类号： G01N3/06 ,  G01N3/08 ,  G05B13/02 ,  G01N3/42 ,  G06N5/048

CPC分类号： G01N3/06 ,  G01N3/08 ,  G05B13/0295 ,  G06N5/048 ,  G01N2203/0019 ,  G01N2203/0032

摘要： A load control method and a load control system of an indenter based on fuzzy predictive control, are provided. The method includes acquiring an actual measured force value of a sensor and an expected force value of the nth cycle in the loading stage; calculating a first error and a change rate; establishing and optimizing a fuzzy predictive controller; determining movement steps of a motor in the loading stage; acquiring the actual measured value of the sensor and an expected force value of the nth cycle in the full load stage; controlling the movement of the motor; acquiring the actual measured force value of the sensor and an expected force value of the nth cycle in the unloading stage; calculating a third error and a change rate; and determining the movement steps of the motor in the unloading stage.