Results 221 to 230 of about 6,266 (261)

Mariner limit cycles and self-disturbance torques

Journal of Spacecraft and Rockets, 1970
Mariner attitude control system limit cycle operation during cruise, noting variation from ideal case to single side ...
B. DOBROTIN, E. A. LAUMANN, D. PRELEWICZ
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Disturbance compensation with a torque controllable steering system

Vehicle System Dynamics, 2006
Via a conventional steering system the driver perceives desired and disturbing effects such as road feedback and resonance effects, respectively. They appear with overlapping frequency spectra within the driver's steering torque. This paper introduces a control algorithm that is suppressing periodic disturbances without affecting useful steering road ...
Max Von Groll, Steffen Mueller, Tilo Meister, Rudolf Tracht   +3 more
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A joint torque disturbance observer for robotic assembly

Proceedings of 36th Midwest Symposium on Circuits and Systems, 2002
This paper describes an approach to achieve good trajectory tracking performance needed in printed circuit board (PCB) assembly by using a joint torque disturbance observer. By observing the difference between the reference torque and the output torque based on a prescribed model, the proposed disturbance observer immediately feeds back the discrepancy
C.Y. Lee, S.P. Chan, D.P. Mital
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Tracking Control of a Mobile Manipulator with External Torque Disturbances Using Computed Torque Control

2020 IEEE 17th India Council International Conference (INDICON), 2020
In this paper, computed torque control technique is used for the tracking control problem of mobile robotic manipulator subjected to external torque disturbances. The proposed control allows the robot to follow the desired end effector and platform trajectories even in the presence of external torque disturbances.
Shyju Susan Mathew, V.R. Jisha
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Torque-angle characteristics of synchronous machines following system disturbances

Electrical Engineering, 1932
A method of predetermining the torque-angle characteristic of a synchronous machine following a system disturbance is of importance in calculating the transient stability limit and in evaluating the effect on this limit of additional rotor circuits or of a change in excitation.
S. B. Crary, M. L. Waring
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Torque disturbances and their effect on process control

Proceedings of 5th International Conference on Power Electronics and Variable-Speed Drives, 1994
The paper seeks to demonstrate the deleterious effects that torque disturbances can have on an industrial process where close control of speed is required to maintain product quality. The paper also highlights the type of disturbance arising from driven equipment as well as those generated from a variety of different types of drive used for variable ...
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Reducing Disturbances Caused by Reductions in Regenerative Brake Torque

SAE Technical Paper Series, 2011
<div class="section abstract"><div class="htmlview paragraph">This paper presents a method to reduce the number of occurrences of vehicle deceleration disturbances due to the reduction of regenerative braking in the presence of wheel slip. Usually, regenerative braking is disabled when wheel slip is detected in order to allow the ABS system
Eric Krueger, Kevin Kidston, Adam Busack
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Real-time path tracking with torque limits by using a disturbance observer

Proceedings of the 1994 IEEE International Conference on Robotics and Automation, 2002
When the minimum-time trajectory of a manipulator along a geometrically prescribed path is planned, considering the manipulator's dynamics and actuators' torque limits, at least one of the joints is at the torque limit. The execution of such a trajectory by a conventional feedback scheme results in torque saturation.
Hirohiko Arai, Kazuo Tanie
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Switching Position-Torque Control for Series Elastic Actuators with Disturbance Observer

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society, 2019
This paper proposes a novel switch control for the series elastic actuator (SEA). This switch control provides more robust position control along with better impulse dissipation performance. SEA is an actuator technology commonly used in robotic applications that require safe and precise interaction control.
Minjae Jo, Hyunwook Lee, Sehoon Oh
openaire   +2 more sources

Transient damping torques in synchronous machines during disturbances

Proceedings of the Institution of Electrical Engineers, 1969
During power-system disturbances, the relative speed between the resultant flux and the rotor causes eddy currents to be induced in the rotor iron structure and an induction-motor or induction-generator torque to be developed owing to the amortisseur winding; both these effects damp out the synchronousmachine oscillations.
openaire   +1 more source