Title :
Trajectory generation method for biped robots to climb up an inclined surface
Author :
Sung Wook Hwang ; Je Sung Yeon ; Jong Hyeon Park
Author_Institution :
Dept. of Mech. Eng., Hanyang Univ., Ansan, South Korea
Abstract :
This paper proposes a trajectory generation method for a biped robot to walk on an inclined surface. In order to generate the walking trajectory, the robot is modeled as one particle and the momentum equation with respect to its zero moment point is used. A few additional assumptions are used to generate the walking trajectory. First, the center of mass moves in parallel with the slope of the surface. Second, the zero moment point of the simplified model should be fixed at the supporting foot during a single support phase and moves from the previous supporting foot to the next supporting foot during a double support phase. When the slop of the surface changes while the robot walks, walking conditions of the robot are also changed, and two piece-wise continuous trajectories are joined smoothly during a double support phase. The effectiveness of the proposed trajectory generation method was proved through simulations.
Keywords :
legged locomotion; trajectory control; biped robots; center of mass; double support phase; inclined surface; momentum equation; piece-wise continuous trajectories; single support phase; supporting foot; trajectory generation method; walking conditions; walking trajectory; zero moment point; Legged locomotion; Trajectory; biped robot; trajectory connecting method; trajectory generation method; various slopping surface;
Conference_Titel :
Robotics (ISR), 2013 44th International Symposium on
Conference_Location :
Seoul
DOI :
10.1109/ISR.2013.6695712