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This paper deals with the modeling, identification and control of the Pierburg mechatronic actuator. This actuator is used in the BMW M57 diesel engine to control all the air which are charged and entered in the vehicle engine. The actuator static characteristics are exploited to model the system dynamics. Then, the obtained model from the identification procedure is used to design a nonlinear control...
An alternative way to control a nonlinear system, such as a two Degree Of Freedom helicopter, is the linearization of the model around an equilibrium point, in this case, an equilibrium point around the Pitch angle. Subsequently, the design a Robust Controller for this system is done, using a the DK iteration method. However, when a variation of an angle such as its uncertainty is modeled, the performance...
In this paper, we present an overall study focused on the modeling, identification and control of the Pierburg mechatronic actuator. This actuator is used in the BMW M57 diesel engine to control all the air which are charged and entered in the vehicle engine. The obtained model from the identification procedure is sufficiently closer to the practical actuator behavior and captures most of its characteristics...
This paper presents preliminary results regarding the development of a supervision scheme for the attitude control system of a nonlinear satellite model. The main issue concerns the handling of faults affecting the reaction wheels, i.e. how to detect and isolate faults, and how to prevent propagation into failures with potential mission loss as a consequence. Thus, this work investigates the design...
Modeling using Lagrange equation of 1st kind and state-space control of a real inverse pendulum is considered. The mathematical model of the pendulum is derived and compared with measurements of the real system. The negative influence of the dry friction was considered and the oscillation was successfully reduced.
Parameter uncertainty and measuring noise are still very challenging work in developing an appropriate controller for the automated clutch system due to the effect of the external disturbances. This paper introduces a robust control method for automated clutch system. A nonlinear dynamic model for the screw-nut actuator associated with clutch is derived, and then a dynamic sliding mode controller...
Robots have entered human life, and closer relationships are being formed between humans and robots. It is desirable that these robots be flexible and lightweight. For this reason, we studied and developed an artificial muscle actuator using straight-fiber-type artificial muscles derived from the McKibben-type muscles, which have excellent contraction rate and force characteristics. However, these...
The virtual torque control is a relative effective control law for the lower extremity carrying exoskeleton robot, which needs no direct measurements from the pilot or the human-machine interface, but it needs the exact mass properties and its PD controller is not applicable for the serious nonlinear system. To overcome these defaults, the virtual prototyping software ADAMS is introduced to model...
This paper presents the performance verification results of the inverse-system controller (ISC) which was proposed by us recently for the pitch control of a variable-speed variable-pitch wind generation system (VSVP-WGS). Based on multi-time-scale analysis, the motion of pitch is reduced to a first-order model with non-affine and nonlinear characteristics. Using the inverse-system method, the nonlinear...
Based on the human-machine intelligent robot system of lower extremity carrying exoskeleton, the new control method is provided, where the virtual torque control is improved. The exoskeleton model is built using SimMechanics in Matlab. The dynamics mathematics model is gotten by study the human walking to construct the controller. The controller in virtual torque control uses nonlinear direct force...
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