scholarly journals Learning-based robust control algorithms for coherent pulse stacking

2021 ◽  
Author(s):  
Abulikemu Abuduweili ◽  
Jie Wang ◽  
Bowei Yang ◽  
Aimin Wang ◽  
Zhigang Zhang
Keyword(s):  
Robust Control ◽  
Control Algorithms ◽  
Coherent Pulse

scholarly journals Nonlinear robust control of large-scale system with input saturation

2021 ◽  
pp. 13-21
Author(s):  
Eugenie L. Eremin ◽  
Larisa V. Nikiforova ◽  
Evgeniy A. Shelenok
Keyword(s):  
Robust Control ◽  
Large Scale ◽  
Input Saturation ◽  
Control Algorithms ◽  
Control Law ◽  
Multiply Connected ◽  
Robust Control System ◽  
Control Saturation ◽  
Decentralized Robust Control ◽  
Nonlinear Robust

The article studies control algorithms of multiply connected system for dynamic plants with control saturation and nonlinear cross-connections. The authors of the article offer a decentralized control law based on the hyperstability criterion. They also use this law to constuct the MIMO servo system with input saturation. To illustrate the capability of the proposed decentralized robust control system the authors use an inverted pendulums connected by a spring.

On robust control algorithms for nonlinear network consensus protocols

2009 ◽  
Vol 20 (3) ◽  
pp. 269-284 ◽  
Author(s):  
Qing Hui ◽  
Wassim M. Haddad ◽  
Sanjay P. Bhat
Keyword(s):  
Robust Control ◽  
Control Algorithms ◽  
Nonlinear Network

Control of A Friction Launch Automatic Transmission Using a Range Clutch

2006 ◽  
Author(s):  
Chunhao J. Lee ◽  
Kumar Hebbale ◽  
Shushan Bai ◽  
Farzad Samie
Keyword(s):  
Robust Control ◽  
Fuel Economy ◽  
Control Strategy ◽  
Automatic Transmission ◽  
Torque Converter ◽  
Control Algorithms ◽  
Automatic Transmissions ◽  
Fuel Economy Improvement ◽  
Vehicle Test ◽  
Overall Ratio

Friction Launch transmissions use a wet multi-plate clutch to replace the torque converter in an automatic transmission. The main benefit of this technology is fuel economy improvement as a result of eliminating the losses in the torque converter. By using one of the range clutches inside the transmission instead of an input clutch in place of the converter, the benefits of this integrated friction launch technology, such as reduction in mass, packaging, and cost, can be enhanced. The availability of new automatic transmissions with higher number of speeds and wider overall ratio spreads makes this technology more viable than ever before. This project focuses on control issues with the friction launch clutch which include developing robust control algorithms for launch and creep, and providing damping to the driveline, when required, and ensuring acceptable vehicle drivability. This paper describes in detail the development of vehicle launch control algorithms. Vehicle test data is presented to show that the control strategy developed in this project significantly reduces the gap between the drivability of a starting clutch vehicle and a torque converter equipped vehicle.

scholarly journals Design and implementation of robust controllers for a gait trainer

2009 ◽  
Vol 223 (6) ◽  
pp. 687-696 ◽  
Author(s):  
F-C Wang ◽  
C-H Yu ◽  
T-Y Chou
Keyword(s):  
Robust Control ◽  
Transfer Functions ◽  
Control Strategies ◽  
Control Algorithms ◽  
Robust Controllers ◽  
Robust Algorithms ◽  
Design And Implementation ◽  
Identification Techniques ◽  
Gait Trainer ◽  
Operating Points

This paper applies robust algorithms to control an active gait trainer for children with walking disabilities. Compared with traditional rehabilitation procedures, in which two or three trainers are required to assist the patient, a motor-driven mechanism was constructed to improve the efficiency of the procedures. First, a six-bar mechanism was designed and constructed to mimic the trajectory of children's ankles in walking. Second, system identification techniques were applied to obtain system transfer functions at different operating points by experiments. Third, robust control algorithms were used to design H∞ robust controllers for the system. Finally, the designed controllers were implemented to verify experimentally the system performance. From the results, the proposed robust control strategies are shown to be effective.

scholarly journals SMCSPO-Based Robust Control of AUV in Underwater Environments including Disturbances

2021 ◽  
Vol 11 (22) ◽  
pp. 10978
Author(s):  
Hyun-Hee Kim ◽  
Min-Cheol Lee ◽  
Hyeon-Jin Cho ◽  
Jun-Ho Hwang ◽  
Jong-Seob Won
Keyword(s):  
Robust Control ◽  
Sliding Mode Control ◽  
High Speed ◽  
Sliding Mode ◽  
Autonomous Underwater Vehicles ◽  
Industrial Robots ◽  
Control Algorithms ◽  
Control Input ◽  
Trajectory Tracking Control ◽  
Mode Control

In the underwater environment, robust control algorithms are required to control autonomous underwater vehicles (AUVs) at high speed while preventing large nonlinearities and disturbances. Sliding mode control (SMC) is a well-known robust control theory and has been widely used not only in AUV control but also in systems such as industrial robots which have high nonlinearity in their system dynamics. However, SMC has the disadvantage of causing chattering on the control input, and it is difficult to apply this method to the control fins of an AUV system that cannot move its fins at high speed underwater. In this work, a design for a sliding mode control with sliding perturbation observer (SMCSPO) algorithm is applied to AUVs, and the simulation results under underwater disturbance conditions are discussed. From simulation using MATLAB, it is confirmed that AUV control using SMCSPO shows better trajectory tracking control performance without chattering than PID control.

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