Traditional compliance control of a rehabilitation robot is implemented in task space by using impedance or admittance control algorithms. The soft robot actuated by pneumatic muscle actuators (PMAs) is becoming prominent for patients as it enables the compliance being adjusted in each active link, which, however, has not been reported in the literature. This paper proposes a new compliance con...

Focusing on providing stable and smooth robot-assisted exercises, this paper proposes a novel dynamic interpolation strategy to improve the robot movement performances. During the robot-assisted exercise, the designed control system dynamically employs appropriate interpolation method according to the physical state of the training impaired limb (PSTIL). The remarkable feature of this strategy ...

The purpose of this paper is to propose adaptive and flexible expert masssage robot using multi-fingered robot. Towards this goal, the present paper gives a modeling of human skin muscle through robot perception of impedance, and control strategy using impedance control to implement adaptive control system, even if human condition is changed, or massage position is shifted, and person to be mas...

Many industrial robot arms are operated in industry, and some robotic applications in the industry, such as a pulling-out of products made by die casting, require the flexible motion excited by an external force. Here, the flexible motion means that the robot arm moves passively according to the external force. Industrial robot arms, however, are difficult to be moved by the external force beca...

Extended Abstract In Canada over 40,000 new stroke cases are reported annually [1], and it costs the Canadian health care system $3.2 billion a year [2]. Thus, new rehabilitation technologies are being investigated. A rehabilitation robot can be used to deliver repetitive practice to the stroke patients, which is the key element for motor recovery [3, 4]. Safety issues regarding humanrobot inte...

Abstract In robot-assisted rehabilitation, the performance of robotic assistance is dependent on human user’s dynamics, which are subject to uncertainties. order enhance rehabilitation and in particular provide a constant level assistance, we separate task space into two subspaces where combined scheme adaptive impedance control trajectory learning developed. Human movement speed can vary from ...

User security is an important consideration for robots that interact with humans, especially for upper‐limb rehabilitation robots, during the use of which stroke patients are often more susceptible to injury. In this paper, a novel safety supervisory control method incorporating fuzzy logic is proposed so as to guarantee the impaired limb’s safety should an emergency situatio...