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Pengcheng Liu

3 accepted papers

2019

Improving Local Trajectory Optimisation using Probabilistic Movement Primitives

IROS 2019poster

Local trajectory optimisation techniques are a powerful tool for motion planning. However, they often get stuck in local optima depending on the quality of the initial solution and consequently, often do not find a valid (i.e. collision free) trajectory. Moreover, they often require fine tuning of a…

Cited by 47SourceScholar
2018

Energy-Efficient Design and Control of a Vibro-Driven Robot

IROS 2018poster

Vibro-driven robotic (VDR) systems use stick-slip motions for locomotion. Due to the underactuated nature of the system, efficient design and control are still open problems. We present a new energy preserving design based on a spring-augmented pendulum. We indirectly control the friction-induced st…

Cited by 24SourceScholar
2016

Modelling and dynamic analysis of underactuated capsule systems with friction-induced hysteresis

IROS 2016poster

This paper studies modelling and dynamic analysis of underactuated capsule systems exhibiting friction-induced hysteresis. The motion mechanism is novel in utilizing internal centripetal torques generated by a vibration micro-motor mounted on the platform. Up to now, most investigations in frictiona…

Cited by 25SourceScholar