Trotting Gait Control of the Quadruped Robot with an Elastic Linkage

被引：0
|
作者：
Li Q. [1 ]
Ren H. [2 ]
Pu W. [1 ]
Jiang J. [1 ]
机构：
[1] College of Mechanical Engineering, Chongqing University, Chongqing
[2] Unit 78616 of PLA, Chengdu
来源：
Jiqiren/Robot | 2019年 / 41卷 / 02期
关键词：
Elastic linkage mechanism; LCS quadruped robot; Posture control; Trotting gait;
D O I：
10.13973/j.cnki.robot.180185
中图分类号：
学科分类号：
摘要：
In order to improve the mobility and shock resistance of quadruped robots, a quadruped robot with elastic linkages and a cable-driven system is designed, named LCS (linkage-cable-spring) quadruped robot. And a speed control strategy is proposed based on the stance angle, and also the centroid height control strategy based on energy compensation, referring to SLIP (spring loaded inverted pendulum) model. The motion stability of trotting gait is improved by the attitude control strategy. Finally, a steady trotting gait is realized by simulation under a given forward speed. Meanwhile, an experimental prototype platform of the LCS quadruped robot is built, and the walking experiment of the stepping and trotting gaits is completed. The experimental results show that the roll and pitch angles of the LCS quadruped robot can be controlled within 2°, and the robot can steadily negotiate small obstacles with the size of 10mm × 10 mm. © 2019, Science Press. All right reserved.
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页码：197 / 205
页数：8
相关论文
共 19 条
  • [11] McNeill A.R., Principles of Animal Locomotion, (2006)
  • [12] Zhang L.X., Lu D.M., Wang L., Et al., Dynamics analysis of fivebar cobot based on differential mecahanism, Robot, 26, 2, pp. 123-126, (2004)
  • [13] Raibert M.H., Tello E.R., Legged Robots That Balance, (1986)
  • [14] Ankarali M.M., Control of hexapedal pronking through a dynamically embedded spring loaded inverted pendulum template, (2010)
  • [15] Farley C.T., Glasheen J., McMahon T.A., Running springs: Speed and animal size, Journal of Experimental Biology, 185, pp. 71-86, (1993)
  • [16] Koechling J., Marc H., How Fast Can a Legged Robot Run?, 102, pp. 239-269, (1993)
  • [17] Han B., Dynamically stable control of bionic quadruped robots under external impact, (2013)
  • [18] Li M.T., Jiang Z.Y., Wang P.F., Et al., Control of quadruped robot with straight legs in trotting gait based on virtual elements, Journal of Jilin University: Engineering and Technology Edition, 45, 5, pp. 1502-1511, (2015)
  • [19] Liu B., Rong X.W., Chai H., A buffering strategy for quadrupedal robots based on virtual model control, Robot, 38, 6, pp. 659-669, (2016)
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