...Khurram Butt; Nariman Sepehri A force-controlled pneumatic actuator with long connecting tubes is a well-accepted solution to develop magnetic resonance imaging (MRI)-compatible force control applications. Such an actuator represents an uncertain, second-order, nonlinear system with input delay...

.... The ability of nonlinear PI control to lower the measurement SNR is evaluated and compared to the variational open-loop case. A simulation demonstrating the performance of the nonlinear PI control is presented. 26 08 2010 06 06 2011 06 12 2011 06 12 2011 closed loop systems force...

..., the required control force and torque increase almost linearly. However, the change of the plate angle was found to have no effect on the force exerted on the X-axis and the torque exerted on the Z-axis. braking force control hybrid electric vehicles hydraulic systems pistons plates (structures) pumps...

...A. Bazaei; M. Moallem In this paper, we study friction characteristics of a constrained planar single-link arm in applications, where control of the end-point interaction force is required. The objective is to improve performance of a force control system by developing an adequate friction model...

... multi-objective adaptive controller as a precursor to an experimental study. adaptive control electric machines force control frequency-domain analysis machine bearings machine control magnetic bearings open loop systems rotors singular value decomposition time-domain analysis vibration...

...Abhishek Gupta; Marcia K. O’Malley In this paper, we propose the use of a nonlinear disturbance-observer for estimation of contact forces during haptic interactions. Most commonly used impedance-type haptic interfaces employ open-loop force control under the assumption of pseudostatic interactions...

... for binder force control in the stamping process, using 12 hydraulically controlled actuators. Section 2 presents the system identification procedure based on experimental data. A suitable dynamic model structure and parameter estimation experiments are used to characterize the relationship between...

.... To create the pressure needed for forging, a rather large axial force must be maintained on the tool. Maintaining this axial force is challenging for robots due to their limited load capacity and compliant nature. To address this problem, force control has been used, and historically, the force has been...

... small batteries and low actuator control forces with minimum actuator complexity and space requirements. 29 10 2008 04 05 2009 18 08 2009 beams (structures) cantilevers damping design engineering elasticity electromagnetic actuators feedback force control military...

.... Conversely, it can also be proven to be passive with respect to the pseudo-supply rate under a closed-loop feedback control law. The passivity of the closed-loop pneumatic actuator is verified in impact and force control experiments. The experimental results also validate the pseudo-bond graph model...

... be maximized for the shortest stopping distance or can be optimally distributed for vehicle stability. vehicle stability wheel slip control tire force estimation target slip assignment brake by wire automotive engineering braking control engineering computing force control fuzzy control...

.... , 2004 , “ Fuzzy State Feedback Gain Scheduling Control of Servo-Pneumatic Actuators ,” IFAC J. Control Eng. Pract. 0967-0661 10.1016/S0967-0661(03)00148-5 , 12 ( 5 ), pp. 639 – 650 . Ben-Dov , D. , and Salcudean , S. E. , 1995 , “ A Force Controlled Pneumatic Actuator ,” IEEE...

... they control the position via the difference of actuator pressures, while they control the stiffness with the sum. Pneumatic actuator controlled by pair of three-way valves 09 01 2006 05 01 2007 pneumatic actuators force control valves robots This paper presents...

... and the formation of a feedback to sustain this control. Forms for both of these are presented. A substantial improvement in the behavior of an automobile occupant’s restraint systems can be anticipated from an active control of the seat belt retraction. 01 04 2005 25 10 2006 force control...

... is implemented in an open architecture control system for the grinding machine. Experimental results show that the cycle time has been reduced by up to 25% over those without force control and by 10–20% compared with the conventional fuzzy logic controller, which indicates its effectiveness in improving...

... to solenoid) injection valves enables a continuous and unified input/output description of the device, and therefore enables the development and implementation of a sliding-mode-type controller for the force control of the proposed actuator, which provides the stability guarantees characteristic of a sliding...

... approach for regulating robot behavior in the interaction with the patient. An inner-outer loop control scheme is proposed. In order to tune the level of force and improve robot adaptability in the interaction with the patient, a classical outer force control loop is used. For the inner loop, a novel...

... 04 January 2004 11 03 2005 control system synthesis nonlinear control systems force control suspensions (mechanical components) fuzzy control nonlinear dynamical systems sprockets hydraulic actuators road vehicles The track tension of tracked vehicles plays a significant...

... for improving vehicle performance during severe maneuvering in a near-limit performance region 2 3 . force control vehicle dynamics optimal control closed loop systems motion control tyres robust control braking optimisation traction friction stability 21 April 2003 24 January...

...Pushpraj Mani Pathak; Amalendu Mukherjee; Anirvan Dasgupta Impedance control is an efficient and stable method of providing trajectory and force control in robotic systems. The procedure by which the impedance of the manipulator is changed is a very important aspect in the design of impedance based...