The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The paper presents a mathematical model for a series architecture hybrid solar vehicle, based on previous versions. A quasi piecewise linear parameter varying (qPWLPV) model was built, both in continuous and in discrete time. The advantage of the new modeling approach lies in a better handling of nonlinearities and answering model related analytical questions. Controllability and stability of the...
The paper presents a new design method for low-cost fuzzy control systems used in mechatronics, characterized by second-order dynamics of integral type, controlled by two-degree-of-freedom Pi-fuzzy controllers. The method, referred to as delta domain design, consists of three design steps based on continuous-time linear case design results expressed in terms of the Extended Symmetrical Optimum method...
The paper proposes fuzzy control systems meant for controlling the electro-hydraulic servo-systems considered as actuators as part of speed control systems in hydro-turbine generators. In this situation the controlled plants are characterized by simplified mathematical models of second-order and third-order integral type. The development is done by using the linear case results on the basis of the...
Hybrid electric vehicles (HEVs) gain more and more attention, as they represent a more environmental friendly alternative to conventional vehicles. If combined with photovoltaic panels, they can lead to further reduction of emissions. The paper focuses on a solution for minimizing the fuel consumption in a series hybrid solar vehicle (HSV). After briefly introducing the model, first a global optimum...
The paper proposes an original development method of Pi-fuzzy controllers. Accepting the controlled plants being described with simplified linear mathematical models, the method starts with linear PI controller development in terms of Iterative Feedback Tuning expressed in discrete-time. It is accompanied by a linear development method applied in delta domain. Next, the results of the linear development...
Electric motors (EM) are widely used in industry for a large variety of applications, such as traction motors used in electric and hybrid vehicles. In this paper a hybrid electric vehicle is considered, which contains both an internal combustion engine and an EM. Without focusing on the other components of the vehicle, the EM is treated in detail, both regarding modelling aspects and control solutions...
The paper presents structures and a systematic development method for two-degree-of-freedom (2-DOF) fuzzy controllers with non-homogenous dynamics with respect to the two input channels. The proposed controller structures are dedicated to a low order plant, which is specific to the field of servo-systems. The design relations are based on the fact that, in some certain conditions, fuzzy controllers...
Engineering for development, production, and other product related company activities are being organized in virtual systems for lifecycle management of product data. This new age of engineering is a result of the continuous development for step-by-step moving of product design, analysis and other production engineering activities from conventional environments to modeling environments during the...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.