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In this paper, we propose a coordinated motion control algorithm of dual manipulators for handling of an almost rigid object but with non-negligible deformation. By the proposed algorithm, an almost rigid object with non-negligible deformation, such as a cardboard box, a plastic case, etc., is held and manipulated by dual manipulators stably without producing any vibrations. By defining apparent dynamics...
This article describes the concept of a novel car transportation system including two mobile robots with a lift mechanism for single wheel. The system lifts only two drive wheels of a front-wheel-drive vehicle or a rear-wheel-drive vehicle, and transports them. However, the system has nonholonomic constraints because all wheels of a vehicle are not lifted by the system. This article also describes...
In this paper, the control algorithm of a female type dance partner robot called PDR was introduced to achieve dance between the robot and a male dancer with physical interaction. PDR is a passive type mobile robot and developed based on the concept of passive robotics. Firstly, the characteristics of servo brake were analyzed, according to the kinematic model and control constraint condition, the...
This paper proposes a distributed motion control algorithm of multiple passive mobile robots for handling an object in cooperation with a human. The driving force of the passive mobile robot is an actual force applied by the human and the servo brakes attached to the wheels control its motion. Different from the active-type robot with servo motors, the passive robot has the control limitation based...
In this paper, we present a method for estimating the user states during the usage of the walker, which support the walking of the user based on the physical interaction between the user and the walker. We also propose a method for renewing these estimation parameters changed by the users and the environmental conditions. The proposed methods are experimentally implemented in RT Walker, which is passive-type...
We have proposed a real-time self-collision avoidance motion generation method for the manipulator of the robot used for human-robot cooperation. In this method, we represent the robots' body by using elastic elements referred to as "RoBE (representation of body by elastic elements)". The self-collision avoidance could be realized based on a virtual reaction force generated by the contacts...
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