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    • 6. 发明公开
    • STEUERN UND/ODER REGELN VON MOTOREN EINES ROBOTERS
    • EP3285975A1
    • 2018-02-28
    • EP16720768
    • 2016-04-22
    • DEUTSCHES ZENTRUM FÜR LUFT- UND RAUMFAHRT E VKASTANIENBAUM GMBH
    • HADDADIN SAMIMANSFELD NICO
    • B25J9/16G05B19/4061
    • G05B19/4061B25J9/1666B25J9/1671B25J9/1674B25J9/1676G05B2219/39097
    • The invention relates to a method and device for controlling and regulating motors MOT
      m of a robot, with m = 1, 2,
      … M, wherein the robot has robot components that are interconnected via a number N of articulated connections GEL
      n , the joint angles of the articulated connections GEL
      n can be adjusted by means of associated motors MOT
      m ; Z(t
      k ) is a state of the robot components in an interval t
      k ; and a first system of coupled motion equations BGG is predetermined and describes rigid-body dynamics or flexible-body dynamics of the connected robot components. In the first system of motion equations BG
      G , u
      m (t
      k ) is a manipulated variable for the respective motor MOT
      m . For the first system of coupled motion equations BGG, restrictions of the manipulated variables u
      m (t
      k ) and restrictions of the states Z(t
      k ) of the connected robot components are predetermined. The method comprises the following steps: for the first system of coupled motion equations BGG, providing (101) a second system of locally equivalent decoupled motion equations BG
      E that describes the rigid-body dynamics or the flexible-body dynamics of the connected robot components; providing (102) restrictions of the manipulated variables um(tk) transformed into the second system and providing restrictions of the states Z(t
      k ) transformed into the second system; providing (103) the state Z(t
      k ) transformed into the second system as Z*(t
      k ); for the second system of decoupled motion equations BG
      E , setting (104) a target state SZ* of the robot manipulator which is to be reached starting from the state Z*(t
      k ), and setting (104) one or more conditions BD* and/or one or more characteristics KZ* that define how to achieve the target state SZ*; in the second system of decoupled motion equations BGE, predicting (105) a state trajectory ZT*(t) and the associated manipulated variable trajectories uT*
      m (t) depending on the state Z*(t
      k ) and the target state SZ* while meeting the conditions BD*, the characteristics KZ*, the transformed restrictions of the manipulated variables u
      m (t
      k ), and the transformed restrictions of the states Z(t
      k ) for an interval of t = t
      k to t = t
      k+W , wherein ∆t = t
      k+W – t
      k is a predetermined prediction interval; transforming (106) the manipulated variable trajectories uT*
      m (t) and the state trajectories ZT*(t) into the first system of coupled motion equations BGG to generate manipulated variable trajectories uT
      m **(t) and state trajectories ZT**(t); from the manipulated variable trajectories uT
      m **(t), determining (107) manipulated variables um(tk+1) for the interval k+1 and regulating the motors MOT
      m by means of the manipulated variables u
      m (t
      k+1 ); from the state trajectories ZT**(t) and/or on the basis of sensor data of a detection system of the state Z(t), determining (108) the state Z(t
      k+1 ) for the interval k+1; and for Z(t
      k ) = Z(t
      k+1 ), performing again the method, starting with step (103), until a predetermined break-off criterion or the target state SZ* is reached.