|Implementation and Dynamic Gait Planning of a Quadruped Bionic Robot
Song Yong, Chen Teng, Hao Yanzhe, and Wang Xiaoli*
International Journal of Control, Automation, and Systems, vol. 15, no. 6, pp.2819-2828, 2017
Abstract : "This paper investigates dynamic gait planning optimization and balance control of quadruped robots
under external disturbance forces. First, a platform of quadruped walking robot with fourteen active degrees of
freedom is designed. Then, a forward kinematic model of joints is built for quadruped robots based on Denavit-
Hartenberg(D-H) method. The inverse kinematic equations are solved to result in joint values when the desired
position and orientation are specified. A dynamic gait planning algorithm is proposed and tested on the quadruped
robot. The planning function is established to create some point-to-point trajectories. The angle values of the
joints can be calculated by using the inverse kinematics equations for every moment. Considering the external
distribution a balance control approach is proposed to stabilize the robot based on the information from the attitude
sensors. The walking is stabilized by a feedback control that uses a three-axis acceleration sensor. Experiments
have been performed on the quadruped robot. The results showed that the proposed methods work well in dynamic
gait planning and external disturbances of a quadruped bionic robot."
Gait planning, inverse kinematics, kinematics, quaruped robot.