The application relates to a control method for dynamically optimizing
contact force distribution of a foot-type
robot, and belongs to the technical field of foot-type robots. The method solves the problem that the foot end of a foot-type
robot is prone to sinking when the foot-type
robot travels on soft
terrain. The method comprises the following steps: acquiring real-time
ground reaction force of each foot of the foot-type robot in a current
gait cycle supporting phase and joint control information in a previous
gait cycle supporting phase; obtaining an expected
ground reaction force time curve of each foot in the current
gait cycle supporting phase based on the joint control information of each foot in the previous
gait cycle supporting phase and a standard
ground reaction force time curve; and obtaining
control torque of each foot at each time by using a
PID controller based on the expected ground reaction force
time curve of each foot in the current
gait cycle supporting phase and corresponding real-time ground reaction force, and applying the
control torque to each joint motor of each foot to optimize the
contact force distribution of each foot. The method realizes walking stability of the foot-type robot on unstructured
terrain.