Constrained model predictive force control of an electrohydraulic actuator

Marusak, Piotr M.; Kuntanapreeda, Suwat

doi:10.1016/j.conengprac.2010.09.002

Cited by 40 publications

(24 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…4. The inner loops feed back the force signals from the actuator through the PID controller in the inner loop to enhance the stability of the system [3], [4], [17]. The main controlled variable of the system (that is, suspension travel) is fed back through the PID controller in the outer loop.…”

Section: Controller Designmentioning

confidence: 99%

“…Back propagation multi-layer neural network (BPMLNN) was employed in [10] to adjust the gains of the PID controller in the position control of a servo-hydraulic system. [4] presented a review of control methods previously applied in electrohydraulic actuator force control. Their analysis included a sinusoidal set-point control and tracking using Proportional (P) and Proportional-Integral (PI) controller.…”

Section: Introductionmentioning

confidence: 99%

“…Since that time, research and development of AVSS have seen exponential growth, propelled largely by the development of optimal control methods, improvements in computer processing capabilities and the increasing affordability of sensors and actuators [1], [2]. One of the main challenges of AVSS design is the generation and control of the actuator force that will improve the overall performance of the suspension system [3], [4].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

PID control of a nonlinear half-car active suspension system via force feedback

2011

View full text Add to dashboard Cite

This paper presents the design of a two-loop, force/suspension travel PID control system, for a four degree of-freedom (DOF), nonlinear, half-car active vehicle suspension system (AVSS). The two-loop system consists of an inner PID hydraulic actuator force control loop and an outer PID suspen sion travel control loop. Performance of the PID based AVSS is compared to a passive, nonlinear, half-car suspension system with the same model parameters. The simulation results showed the superior performance of the AVSS in the presence of the deterministic road disturbance.

show abstract

Section: Controller Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

PID control of a nonlinear half-car active suspension system via force feedback

2011

View full text Add to dashboard Cite

show abstract

“…For example, Niksefat and Sepehri [6] applied the quantitative feedback theory (QFT) to the design of robust force control of hydraulic actuators. Marusak and Kuntanapreeda [5] designed an analytical model predictive controller for force control of an electrohydraulic actuator.…”

Section: Introductionmentioning

confidence: 99%

Application of Zakian's majorants to robust controller design for hydraulic force control systems

Chuman

Arunsawatwong

2013

2013 10th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technolo

View full text Add to dashboard Cite

The paper presents the design of a robust controller for a hydraulic force control system using Zakian's majorants, in which a two-degree-of-freedom configuration is used. The design objective is to ensure that the error and the control signals always stays within prescribed bounds in the presence of all inputs having bounded magnitude and bounded slope. The design problem is formulated so that all possible inputs are explicitly taken into account. Accordingly, the design objective is expressed as a set of inequalities that can be solved in practice. A numerical example with two parameter uncertainties is carried out.

show abstract

“…Electro-hydraulic servo systems are widely used in industrial applications, national defense, aerospace, robots and other fields because of their high power density, high stiffness, fast response, self-cooling, good positioning capabilities, etc [1]. However, electro-hydraulic servo systems have time-varying parameters, uncertainties and nonlinearity, especially the jumping parameters along with the change of working conditions.…”

mentioning

confidence: 99%

An Electro-hydraulic Position Control System with Dual-controller Switching

Chen¹,

Cao²,

Wu³

et al. 2017

dtetr

View full text Add to dashboard Cite

Abstract. This article focuses on the improvement of the control performance of the electro-hydraulic position servo system. A three-order state feedback (3OSF) controller is designed to eliminate static error. For the purpose that overcome the inadequacy due to high order in the 3OSF control system, a weighted switching algorithm in the finite frequency domain is adopted to realize the switching control using the 3OSF-2OSF dual-controller. Experiments show that the control system using the 3OSF-2OSF dual-controller weighted switching in the finite frequency domain has better dynamic performance and static performance than the control system using the 2OSF. Comparing with the threshold switching, the developed switching algorithm has smaller switching impact.Introduction. Electro-hydraulic servo systems are widely used in industrial applications, national defense, aerospace, robots and other fields because of their high power density, high stiffness, fast response, self-cooling, good positioning capabilities, etc [1]. However, electro-hydraulic servo systems have time-varying parameters, uncertainties and nonlinearity, especially the jumping parameters along with the change of working conditions. Output feedback is the commonly used control method for electro-hydraulic servo system, but the control performance optimization is limited due to the incompleteness of system description and the information controller design with. Output feedback can not meet the demands of the increasingly improved control precision. State variables can comprehensively reflect the system internal characteristics, so the state feedback can improve system performance more effectively than traditional output feedback. Due to the phenomenon such as pressure-flow characteristics, hysteresis in flow gain characteristics, oil leakage, oil temperature variations, characteristics of valves near null, and so on. The exact dynamic model of electro-hydraulic servo systems is hard to be built. The model error limits the improvement of state feedback control system dynamic performance. The feedback linearization can eliminate the system extrinsic nonlinear

show abstract

Constrained model predictive force control of an electrohydraulic actuator

Cited by 40 publications

References 11 publications

PID control of a nonlinear half-car active suspension system via force feedback

PID control of a nonlinear half-car active suspension system via force feedback

Application of Zakian's majorants to robust controller design for hydraulic force control systems

An Electro-hydraulic Position Control System with Dual-controller Switching

Contact Info

Product

Resources

About