Abstract
Locomotion of quadruped robots has not yet achieved the harmony, flexibility, efficiency and robustness of its biological counterparts. Biological research showed that spinal reflexes are crucial for a successful locomotion in the most varied terrains. In this context, the development of bio-inspired controllers seems to be a good way to move toward an efficient and robust robotic locomotion, by mimicking their biological counterparts. This contribution presents a sensory-driven controller designed for the simulated Oncilla quadruped robot. In the proposed reflex controller, movement is generated through the robot’s interactions with the environment, and therefore, the controller is solely dependent on sensory information. The results show that the reflex controller is capable of producing stable quadruped locomotion with a regular stepping pattern. Furthermore, it is capable of dealing with slopes without changing the parameters and with small obstacles, overcoming them successfully. Finally, system robustness was verified by adding noise to sensors and actuators and also delays.
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This work has been supported by FCT—Fundação para a Ciência e Tecnologia in the scope of the project: PEst-UID/CEC/00319/2013.
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Ferreira, C., Santos, C.P. A sensory-driven controller for quadruped locomotion. Biol Cybern 111, 49–67 (2017). https://doi.org/10.1007/s00422-016-0708-4
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DOI: https://doi.org/10.1007/s00422-016-0708-4