Stair climbing control for Stair climbing robot with Involute-Curve-Shaped-Mechanism

Author(s):  
Ryosuke FUKUDA ◽  
Taku KITAHARA ◽  
Ryota YAMASHINA
Author(s):  
Tsukasa YOSHIMURA ◽  
Nobuyasu TOMOKUNI ◽  
Noriho KOYACHI

2008 ◽  
Vol 20 (2) ◽  
pp. 221-227 ◽  
Author(s):  
Yuji Asai ◽  
◽  
Yasuhiro Chiba ◽  
Keisuke Sakaguchi ◽  
Naoki Bushida ◽  
...  

We propose a simple hopping mechanism using vibration of a two-degrees-of-freedom (2-DOF) system for a fast stair-climbing robot. The robot, consisting of two bodies connected by springs and a wire, hops by releasing energy stored in springs and travels quickly using wheels mounted on its lower body. The trajectories of bodies during hopping change based on mechanical design parameters such as reduced mass of the two bodies, the mass ratio between the upper and lower bodies, and spring constant, and control parameters such as initial contraction of the spring and wire tension. This property allows the robot to quickly and economically climb stairs and land softly without complex control. In this paper, we propose a mathematical model of the robot and investigate required tread length for continuous hopping to climb a flight of stairs. Furthermore, we demonstrate fast stair-climbing and soft landing for a flight of stairs in experiments.


2007 ◽  
Vol 23 (1) ◽  
pp. 3-18 ◽  
Author(s):  
Hyun Do Choi ◽  
Chun Kyu Woo ◽  
Soohyun Kim ◽  
Yoon Keun Kwak ◽  
Sukjune Yoon

2010 ◽  
Vol 2010 (0) ◽  
pp. _2A1-F29_1-_2A1-F29_2
Author(s):  
Masashi YOSHIKAWA ◽  
Kan TAGUCHI

2007 ◽  
Vol 19 (3) ◽  
pp. 258-263 ◽  
Author(s):  
Keisuke Sakaguchi ◽  
◽  
Takayuki Sudo ◽  
Naoki Bushida ◽  
Yasuhiro Chiba ◽  
...  

We propose a simple hopping mechanism using the vibration of a two-degrees-of-freedom (DOF) system for a fast stair-climbing robot. The robot, consisting of two bodies connected by springs, hops by releasing energy stored in springs and travels quickly using wheels mounted on its lower body. The trajectories of bodies during hopping change based on design parameters such as the reduced mass of the two bodies, mass ratio between the upper and lower bodies, spring constant, and control parameters such as initial contraction of the spring and wire tension. This property allows the robot to quickly and economically climb stairs and land softly. In this paper, the characteristics of hopping for the design and control parameters are clarified by both numerical simulation and experiments. Furthermore, fast stair climbing and soft landing are demonstrated.


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