Bio-Inspired Controller for a Robot Cheetah with a Neural Mechanism Controlling Leg Muscles

作     者：Xin Wang Mantian Li Pengfei Wang Wei Guo Lining Sun 

作者机构：State Key Laboratory of Robotics and SystemHarbin Institute of TechnologyHarbin 150001P.R.China 

出 版 物：《Journal of Bionic Engineering》 (仿生工程学报（英文版）)

年 卷 期：2012年第9卷第3期

页      面：282-293页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 080202[工学-机械电子工程] 08[工学] 071006[理学-神经生物学] 0804[工学-仪器科学与技术] 0802[工学-机械工程] 

基　　金：Acknowledgments This work is supported by the National Hi-tech Research and Development Program of China (863 Program  Grant no. 2011AA0403837002)  the National Natural Science Foundation of China (No. 61005076  No. 61175107)  and the Self-Planned Task (No. SKLRS201006B) of the State Key Laboratory of Ro- botics and System (HIT) 

主　　题：biomimetics biologically-inspired robots legged robots neural mechanism artificial pneumatic muscle 

摘      要：The realization of a high-speed running robot is one of the most challenging problems in developing legged robots. The excellent performance of cheetahs provides inspiration for the control and mechanical design of such robots. This paper presents a three-dimensional model of a cheetah that predicts the locomotory behaviors of a running cheetah. Applying biological knowledge of the neural mechanism, we control the muscle flexion and extension during the stance phase, and control the positions of the joints in the flight phase via a PD controller to minimize complexity. The proposed control strategy is shown to achieve similar locomotion of a real cheetah. The simulation realizes good biological properties, such as the leg retraction, ground reaction force, and spring-like leg behavior. The stable bounding results show the promise of the controller in high-speed locomotion. The model can reach 2.7 m-s^-1 as the highest speed, and can accelerate from 0 to 1.5 m-s^-1 in one stride cycle. A mechanical structure based on this simulation is designed to demonstrate the control approach, and the most recently developed hindlimb controlled by the proposed controller is presented in swinging-leg experiments and jump-force experiments.