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Capture-Point Based Balance and Reactive Omnidirectional Walking Controller

Related publications (36)

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Effects of passive and active joint compliance in quadrupedal locomotion

Auke Ijspeert, Mehmet Hasan Mutlu, Alexandre Bernardino

Compliance of the body has a crucial role on locomotion performance. The levels and the distribution of compliance should be well tuned to obtain efficient gait. The leg stiffness changes significantly even during different phases of a single gait cycle. T ...

TAYLOR & FRANCIS LTD2018

An Overview on Principles for Energy Efficient Robot Locomotion

Salman Faraji

Despite enhancements in the development of robotic systems, the energy economy of today's robots lags far behind that of biological systems. This is in particular critical for untethered legged robot locomotion. To elucidate the current stage of energy eff ...

FRONTIERS MEDIA SA2018

Compliant universal grippers as adaptive feet in legged robots

Auke Ijspeert, Mehmet Hasan Mutlu, Simon Lukas Hauser

This work investigates the usage of compliant universal grippers as a novel foot design for legged locomotion. The method of jamming of granular media in the universal grippers is characterized by having two distinct states: a soft, fluid-like state which ...

2018

Optimization-based motion planning for legged robots

Alexander Winkler

Legged machines have the potential to traverse terrain that wheeled robots cannot. These capabilities are useful in scenarios such as stairs in homes or debris-filled disaster scenes, such as earthquake areas. This thesis develops one of the algorithms nec ...

ETH Zurich2018

Online walking motion and foothold optimization for quadruped locomotion

Jonas Buchli, Farbod Farshidian, Alexander Winkler

Abstract: We present an algorithm that generates walking motions for quadruped robots without the use of an explicit footstep planner by simultaneously optimizing over both the Center of Mass (CoM) trajectory and the footholds. Feasibility is achieved by i ...

2018

Bipedal locomotion is a challenging task in the sense that it requires to maintain dynamic balance while steering the gait in potentially complex environments. Yet, humans usually manage to move without any apparent difficulty, even on rough terrains. This ...

EPFL2017

Fast Trajectory Optimization for Legged Robots Using Vertex-Based ZMP Constraints

Jonas Buchli, Farbod Farshidian, Alexander Winkler

This letter combines the fast zero-moment-point approaches that work well in practice with the broader range of capabilities of a trajectory optimization formulation, by optimizing over body motion, footholds, and center of pressure simultaneously. We intr ...

2017

We present a trajectory optimization framework for legged locomotion on rough terrain. We jointly optimize the center of mass motion and the foothold locations, while considering terrain conditions. We use a terrain costmap to quantify the desirability of ...

IEEE2017

3LP: a linear 3D-walking model including torso and swing dynamics

Auke Ijspeert, Salman Faraji

In this paper, we present a new mechanical model for biped locomotion, composed of three linear pendulums (one per leg and one for the whole upper body) to describe stance, swing and torso dynamics. In addition to a double support phase, this model has dif ...

Sage Publications Ltd2017

In this article, we present a new linear model (3LP) for bipedal locomotion which can describe swing and torso dynamics as well as falling. Compared to traditional inverted-pendulum based models, 3LP produces more human-like center of mass trajectory and s ...

2016