New! Sign up for our free email newsletter.
Science News
from research organizations

Quadruped robot exhibits spontaneous changes in step with speed

Date:
March 22, 2017
Source:
Tohoku University
Summary:
A research group has demonstrated that by changing only its parameter related to speed, a quadruped robot can spontaneously change its steps.
Share:
FULL STORY

The research group of Professor Akio Ishiguro and Assistant Professor Dai Owaki of Tohoku University have, for the first time, successfully demonstrated that by changing only its parameter related to speed, a quadruped robot can spontaneously change its steps between energy-efficient patterns (gait transition phenomena).

Until now, the manner in which changing speeds cause quadrupeds to change their gaits -- walking, trotting and galloping -- is poorly understood. Through this study, the researchers successfully demonstrated the reproduction of the quadruped gait transition phenomena. They achieved this via a decentralized control scheme, using a simple local rule in which a leg continues to support the body while sensing weight on the corresponding leg.

Moreover, they confirmed that the energy-efficiency profile of the robot's gait patterns matched those measured in horses.

The present work is expected to lead to better understanding of the mechanism of how quadrupeds can flexibly and efficiently adjust their gait when their speed is changed. The result may constitute the basis of an unconventional approach to coordinating the many degrees of freedoms required for adaptive robot locomotion.

The researchers hope that the study will lead to a wide range of applications such as adaptive legged robots working in disaster areas, user-friendly legged entertainment robots, and automatic motion-creation algorithms for computer graphics (CG) animation.


Story Source:

Materials provided by Tohoku University. Note: Content may be edited for style and length.


Journal Reference:

  1. Dai Owaki, Akio Ishiguro. A Quadruped Robot Exhibiting Spontaneous Gait Transitions from Walking to Trotting to Galloping. Scientific Reports, 2017; 7 (1) DOI: 10.1038/s41598-017-00348-9

Cite This Page:

Tohoku University. "Quadruped robot exhibits spontaneous changes in step with speed." ScienceDaily. ScienceDaily, 22 March 2017. <www.sciencedaily.com/releases/2017/03/170322092400.htm>.
Tohoku University. (2017, March 22). Quadruped robot exhibits spontaneous changes in step with speed. ScienceDaily. Retrieved March 28, 2024 from www.sciencedaily.com/releases/2017/03/170322092400.htm
Tohoku University. "Quadruped robot exhibits spontaneous changes in step with speed." ScienceDaily. www.sciencedaily.com/releases/2017/03/170322092400.htm (accessed March 28, 2024).

Explore More

from ScienceDaily

RELATED STORIES