The Quadruped Robot "Kotetsu"

Adaptive dynamic walking using phase modulations based on leg loading/unloading

- Challenge to a general controller for quadrupedal locomotion -


Specifications

Size L: 34 x W: 19-25 x H: 35 cm, leg length at standing¡§18cm-22cm
length [thigh] 9 cm, [shank] 11 cm, [foot] 8 cm

Distance between roll joints (left-right): 12cm, between pitch joints (fore-hind): 25cm

weight 5.2Kg (excluding batteries)
joints hip pitch, hip roll, knee pitch, and ankle pitch (all joints are actively controlled)
sensors encoder, rate gyro (pitch&roll), accelerometer (pitch&roll&yaw), 3 axes force-torque sensor (NITTA PD3-32, force: 1 axis, torque: 2 axes)
DC servo motors

hip pitch, knee pitch, ankle pitch: MAXON RE25 20 [W]

hip roll: MAXON RE-max24 11 [W]

gear reduction ratio

hip pitch: 46, knee pitch:: 50, ankle pitch: 40, hip roll: 122

controller and etc. CPU board: General Robotix HRP-3P-CN-A,

I/O board: General Robotix HRP-3P-MCN, OS: ART-Linux

velocity

NOT YET (expectation max: 1 m/s)

walking style

NOT YET


History and Abstract with movies and publication lists

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