Title
Design and Control of a Dual Unidirectional Brake Hybrid Actuation System for Haptic Devices
Abstract
Hybrid actuators combining brakes and motors have emerged as an efficient solution to achieve high performance in haptic devices. In this paper, an actuation approach using two unidirectional brakes and a DC motor is proposed. The brakes are coupled to overrunning clutches and can apply a torque in only one rotational direction. The associated control laws, that are independent of the virtual environment model, calculate the control gains in real time in order limit the energy and the stiffness delivered by the motor to ensure stability. The reference torque is respected using the combination of the motor and the brake. Finally, an user experiment has been performed to evaluate the influence of passive and active torque differences in the perception of elasticity. The proposed actuator has a torque range of 0.03 Nm to 5.5 Nm with a 17.75 kNm (-2) torque density.
Year
DOI
Venue
2014
10.1109/TOH.2014.2346501
Haptics, IEEE Transactions  
Keywords
Field
DocType
DC motors,actuators,brakes,force feedback,torque control,DC motor,control gains,control law,dual unidirectional brake hybrid actuation system design,haptic devices,reference torque,virtual environment model,Hybrid actuator,active actuator,control,force feedback,passive actuator
Brake,Torque,Torque sensor,Control theory,Computer science,Direct torque control,Control engineering,DC motor,Rotary actuator,Torque density,Actuator
Journal
Volume
Issue
ISSN
7
4
1939-1412
Citations 
PageRank 
References 
3
0.48
16
Authors
3
Name
Order
Citations
PageRank
Carlos Rossa14111.58
José Lozada2273.35
Alain Micaelli39814.12