Skip to main navigation Skip to search Skip to main content

Dynamic turning of 13 cm robot comparing tail and differential drive

A. O. Pullin, N. J. Kohut, D. Zarrouk, R. S. Fearing

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Rapid and consistent turning of running legged robots on surfaces with moderate friction is challenging due to leg slip and uncertain dynamics. A tail is proposed as a method to effect turns at higher yaw frequencies than can be obtained by differential velocity drive of alternate sides. Here we introduce a 100 mm scale dynamic robot - OctoRoACH - with differential-drive steering and a low-mass tail to investigate issues of yaw rate control. The robot without tail is underactuated with only 2 drive motors and mass of 35 grams including battery and control electronics. For some surface conditions, OctoRoACH can maintain heading or turning rate using only leg velocity control, and a basic rate-gyro-based heading control system can respond to disturbances, with a closed-loop bandwidth of approximately 1 Hz. Using a modified off-the-shelf servo for the tail drive, the robot responds to turning commands at 4 Hz and up to 400°/sec.

Original languageAmerican English
Title of host publication2012 IEEE International Conference on Robotics and Automation, ICRA 2012
Pages5086-5093
Number of pages8
DOIs
StatePublished - 1 Jan 2012
Externally publishedYes
Event2012 IEEE International Conference on Robotics and Automation, ICRA 2012 - Saint Paul, MN, United States
Duration: 14 May 201218 May 2012

Publication series

NameProceedings - IEEE International Conference on Robotics and Automation

Conference

Conference2012 IEEE International Conference on Robotics and Automation, ICRA 2012
Country/TerritoryUnited States
CitySaint Paul, MN
Period14/05/1218/05/12

All Science Journal Classification (ASJC) codes

  • Software
  • Artificial Intelligence
  • Electrical and Electronic Engineering
  • Control and Systems Engineering

Fingerprint

Dive into the research topics of 'Dynamic turning of 13 cm robot comparing tail and differential drive'. Together they form a unique fingerprint.

Cite this