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- Shuuji Kajita, Fumio Kanehiro, Kenji Kaneko, Kiyoshi Fujiwara, Kensuke Harada, Kazuhito Yokoi +1 other
- ICRA
- 2003

We introduce a new method of a biped walking pattern generation by using a preview control of the zero-moment point (Z M). First, the dynamics of a biped robot is modeled as a running cart on a table which gives a convenient representation to treat ZMP. After reviewing conventional methods of ZMP based pattern generation, we formalize the problem as the… (More)

For realtime walking control of a biped robot, we analyze the dynamics of a three-dimensional inverted pendulum whose motions are constrained onto an arbitrarily defined plane. This analysis leads us a simple linear dynamics, the Three-Dimensional Linear Inverted Pendulum Mode (3D-LIPM). Geometric nature of trajectories under the 3D-LIPM is discussed, and… (More)

- Shuuji Kajita, Fumio Kanehiro, Kenji Kaneko, Kiyoshi Fujiwara, Kensuke Harada, Kazuhito Yokoi +1 other
- IROS
- 2003

We introduce a method to generate whole body motion of a humanoid robot such that the resulted total linear/angular momenta become specified values. First, we derive a linear equation which gives the total momentum of a robot from its physical parameters, the base link speed and the joint speeds. Constraints between the legs and the environment are also… (More)

- Shuuji Kajita, Mitsuharu Morisawa, Kensuke Harada, Kenji Kaneko, Fumio Kanehiro, Kiyoshi Fujiwara +1 other
- IROS
- 2006

— A biped walking pattern generator which allows an additional ZMP control (auxiliary ZMP) is presented. An auxiliary ZMP is realized by an inverse system added to a pattern generator based on the ZMP preview control. To compensate the effect of the auxiliary ZMP, we apply virtual time shifting of the reference ZMP. As an application of the proposed method,… (More)

- Fumio Kanehiro, Kiyoshi Fujiwara, Shuuji Kajita, Kazuhito Yokoi, Kenji Kaneko, Hirohisa Hirukawa +2 others
- ICRA
- 2002

This paper introduces an open architecture hu-manoid robotics platform (OpenHRP for short) on which various building blocks of humanoid robotics can be investigated. OpenHRP is a virtual humanoid robot platform with a compatible humanoid robot, and consists of a simulator of humanoid robots and motion control library for them which can also be applied to a… (More)

- Hirohisa Hirukawa, Shizuko Hattori, Kensuke Harada, Shuuji Kajita, Kenji Kaneko, Fumio Kanehiro +2 others
- ICRA
- 2006

— This paper proposes a universal stability criterion of the foot contact of legged robots. The proposed method checks if the sum of the gravity and the inertia wrench applied to the COG of the robot, which is proposed to be the stability criterion, is inside the polyhedral convex cone of the contact wrench between the feet of a robot and its environment.… (More)

— This paper proposes a method of a real-time gait planning for humanoid robots which can change stride immediately at every step. Based on an analytical solution of an inverted pendulum model, the trajectories of the COG (Center of Gravity) and the ZMP (Zero-Moment Point) are parameterized by polynomials. Since their coefficients can be efficiently… (More)

This paper investigates a method to minimize damage to a humanoid robot when it falls over to the ground. The strategy involves controlling the attitude of the robot while it is falling over so that it lands on the ground at one of shock-absorbing parts of the robot. A simulation study has confirmed that the proposed algorithm can make the robot land at… (More)

- Fumio Kanehiro, Natsuki Miyata, Shuuji Kajita, Kiyoshi Fujiwara, Hirohisa Hirukawa, Yoshihiko Nakamura +4 others
- IROS
- 2001

- Kensuke Harada, Shuuji Kajita, Fumio Kanehiro, Kiyoshi Fujiwara, Kenji Kaneko, Kazuhito Yokoi +1 other
- ICRA
- 2004