The invention discloses a
lower limb exoskeleton robot layered cooperative walking aid control method. The method comprises the steps of
data acquisition and preprocessing; human-
machine coupling dynamics modeling is carried out, and required moments tau < hip >, tau < knee > and tau <
ankle > of the hip joint, the
knee joint and the
ankle joint are obtained; low-layer joint control, including hip
joint moment, knee /
ankle virtual impedance moment and friction compensation calculation; middle-layer multi-axis cooperation and
gait phase judgment; high-rise energy is optimally distributed, assistance is distributed to three joints in a phase and a safety boundary, meanwhile, the requirements for labor saving and stability are considered, a
minimization problem is written in a unified mode, J serves as the total amount, and torque of the hip joint, torque of the
knee joint and torque of the ankle joint are solved in a combined mode; according to the step-by-step self-adaption of myoelectricity driving, in order to cope with
human body fatigue changes, step-by-step updating is carried out on the virtual stiffness within the movement distance. The method has the advantages of improving man-
machine cooperation level, man-
machine adaptability and walking aid efficiency.