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Orientation Control System: Enhancing Aerial Maneuvers for Quadruped Robots.

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Summary
This summary is machine-generated.

Legged robots can overcome obstacles using aerial leaps. This study introduces an Orientation Control System (OCS) with flywheels to actively manage robot orientation during flight, enhancing maneuverability.

Keywords:
articulated multi-body systemlegged robotorientation control

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Area of Science:

  • Robotics
  • Control Systems
  • Mechanical Engineering

Background:

  • Legged robots require aerial maneuvers to surmount obstacles impassable by standard gaits.
  • Controlling robot orientation during aerial phases, where the Center of Mass is uncontrolled, presents a significant challenge.

Purpose of the Study:

  • To develop and evaluate an Orientation Control System (OCS) for legged robots to actively control orientation during aerial motions.
  • To address the limited controllability over robot orientation during the flight phase of leaps.

Main Methods:

  • Proposed an Orientation Control System (OCS) utilizing two actuated rotating masses (flywheels or reaction wheels).
  • Designed the flywheels with incident axes of rotation for a compact system capable of controlling roll and pitch.
  • Leveraged the principle of conservation of angular momentum to adjust rotational velocity and steer robot orientation.

Main Results:

  • Demonstrated that the OCS can provide control authority over the robot's orientation during flight.
  • Simulations on the Solo12 robot validated the system's capability to control roll and pitch angles, accounting for differing moments of inertia.
  • The system enables orientation adjustments even without ground contact.

Conclusions:

  • The proposed Orientation Control System (OCS) effectively enhances the maneuverability of legged robots during aerial motions.
  • This technology offers a viable solution for improving obstacle traversal capabilities in legged robotics.
  • The compact, dual-axis flywheel design provides robust orientation control for dynamic aerial maneuvers.