Adaptive Friction Compensation for Linear Slider with adaptive differentiator

Sato, Ken-ichi; Tsuruta, Kazuhiro

doi:10.3182/20100913-3-us-2015.00045

Cited by 2 publications

(3 citation statements)

References 11 publications

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“…Adaptive fuzzy sliding mode control is investigated and implemented on an inverted pendulum in [14]. Newer applications of adaptive control systems include adaptive friction compensation with an adaptive velocity estimator to compensate for the estimated non-linear friction force [15]. In [16], a fuzzy model reference adaptive control of an active magnetic bearing for a milling process is investigated to reduce the milling dynamics.…”

Section: Background and Methodsmentioning

confidence: 99%

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Adaptive Feedforward Control of a Pressure Compensated Differential Cylinder

2020

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This paper presents the design, simulation and experimental verification of adaptive feedforward motion control for a hydraulic differential cylinder. The proposed solution is implemented on a hydraulic loader crane. Based on common adaptation methods, a typical electro-hydraulic motion control system has been extended with a novel adaptive feedforward controller that has two separate feedforward states, i.e, one for each direction of motion. Simulations show convergence of the feedforward states, as well as 23% reduction in root mean square (RMS) cylinder position error compared to a fixed gain feedforward controller. The experiments show an even more pronounced advantage of the proposed controller, with an 80% reduction in RMS cylinder position error, and that the separate feedforward states are able to adapt to model uncertainties in both directions of motion.

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Section: Background and Methodsmentioning

confidence: 99%

“…The pressure compensator ensures that there is a constant pressure drop over the directional control valve, which gives a load independent flow. The governing equations of the pressure compensator are given in Equations ( 13)- (15).…”

Section: Modellingmentioning

confidence: 99%

Adaptive Feedforward Control of a Pressure Compensated Differential Cylinder

2020

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“…Theorem 1 Consider the error system (6) with the parameter adjustment law (10). If there exist a positive solution P and a positive number β such that the following equations are satisfied:…”

Section: The Degree Of the Polynomialmentioning

confidence: 99%

Experimental Validation of Adaptive Velocity and Acceleration Estimators with MEMS-Based Inertial Sensors

Nimiya

Sakamoto

Kawakami

et al. 2012

Stochastic Systems Theory and its Applications (SSS)

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We have recently proposed the adaptive velocity and acceleration estimators based on the adaptive control theory. In this report, we perform the experimental validation of proposed estimators with the Crossbow NAV440 that is a product of MEMSIC,Inc. Using Crossbow NAV440, we can obtain the roll, pitch, and yaw angles and their velocities and accelerations. The performances of the proposed differential filters are verified by using the measurement data with NAV440. Moreover, the adaptive velocity and acceleration estimators are compared with the approximate differentiator and the exact differentiator.

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Adaptive Friction Compensation for Linear Slider with adaptive differentiator

Cited by 2 publications

References 11 publications

Adaptive Feedforward Control of a Pressure Compensated Differential Cylinder

Adaptive Feedforward Control of a Pressure Compensated Differential Cylinder

Experimental Validation of Adaptive Velocity and Acceleration Estimators with MEMS-Based Inertial Sensors

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