Wszystkie pola: hydrostatic control - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The wireless hydrostatic transmission control by the use of mobile technology
Autorzy:: Kucybała, P.
Pobędza, J.
Sobczyk, A.
Powiązania:: https://bibliotekanauki.pl/articles/248044.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: fluid power control system
hydrostatic transmission system
wireless control system
Opis:: The paper presents the concept of a new approach for remote control and monitoring of parameters of mobile or stationary machines in real time on the example of the hydrostatic transmission drive test stand. The proposed system control and monitoring is the mobile system which is closely related with the three applications written in a different programming languages, such as: java (Android) – mobile application runs on the tablet, C language – server application joins xPC Target with tablet, PHP – admin panel to manage mobile control platform. Controlling of the hydrostatic drive stand is implemented using an application installed on the tablet. This application is connected with computer’s real-time (xPC Target) module, generated in Matlab. The computer with xPC Target is equipped with a measuring-control card, to which the control signals are transmitted. This hardware-software component plays the connecting role between machine and operator of the mobile platform installed on the tablet. The application allows observe important parameters such as pressure, volumetric flow rate, temperature, velocity, torque in real-time, as well as, it enable, by use of special graphic slider on the tablet’s screen, to set control parameters such as: speed of electric motor, the opening and switching positions of the directional valve, as well as, setting the load by pressure relief valve. Based on this system research related to the verification of system operation were performed for different setting of the hydrostatic transmission drive speed controller, and selected results are presented in the paper.
Źródło:: Journal of KONES; 2014, 21, 2; 169-175
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: The control system for a manipulator with two degrees of freedom for water hydrostatic transmission drive
Autorzy:: Kucybała, P.
Sobczyk, A.
Powiązania:: https://bibliotekanauki.pl/articles/248151.pdf
Data publikacji:: 2015
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: fluid power control system
hydrostatic transmission system
water hydraulics
Opis:: The article presents concepts of control of the manipulator with two degrees of freedom, which uses a water hydraulic power unit to drive the actuators. The proposed control system is based on the use of electromagnetically controlled “rosettes valve” and proportional flow control valve. The control system is implemented using a computer equipped with a module for the real-time operating system (XPC Target) working in connection with the environment Matlab/Simulink. Controlled variable of the drive system is the displacement of the individual hydraulic cylinder and after determining manipulator kinematics, any point of the object in operating space. The positioning error of individual manipulator elements will be determined during the test in terms of different control algorithms, using the PID controller and PWM signal. In addition, it analyses the impact of changes in the velocity of the piston rod for the boom mechanism and the arm mechanism. An important aspect of the presented hydrostatic drive system is the use of water as a medium that physical and chemical properties are different from commonly used hydraulic oil, and which is friendly to the environment and meet the high cleanliness requirements for the fluid used to transfer the hydrostatic energy. Therefore, the control system requires a different approach, tied with synchronous control valves ON/OFF and proportional control flow regulators to achieve high accuracy.
Źródło:: Journal of KONES; 2015, 22, 3; 125-132
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: The use of digital hydraulic to the position control of hydraulic cylinder
Autorzy:: Kucybała, P.
Sobczyk, A.
Powiązania:: https://bibliotekanauki.pl/articles/244161.pdf
Data publikacji:: 2016
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: fluid power control system
hydrostatic transmission system
digital hydraulics
Opis:: The article presents the method of controlling the position of the hydraulic cylinder using hydraulic valves on/off with an appropriate strategy for digital control. Main elements of the hydraulic system under consideration include a group of electromagnetic hydraulic valves and hydraulic cylinder single acting. The control system was implemented in the environment of the real-time system based on MATLAB/Simulink. The digital control strategy is based on a fast enough on and off switching valves causing corresponding motion of the cylinder to the required position. This article presents the advantages and disadvantages of this type of control about the system with the proportional control system. The accuracy of this kind of control depends on the structure, properties of the valves or their static and dynamic characteristics. The results of analysis of the control system have the possibility of controlling the positioning hydraulic cylinder with a rather high accuracy, which can be used in place of proportional control systems. The use of digital control system allows, under certain conditions to obtain cost savings related to a reduction in energy consumption, to get a much better adaptation to variable control systems. This concept is an interesting alternative for the conventional control system and provides opportunities for application in systems, where conventional control is very expensive e.g. water hydraulics or to the clear systems where the use of hydraulic proportional technique is not necessarily, but depends on the user to the possibility of obtaining good quality control at a relatively low cost.
Źródło:: Journal of KONES; 2016, 23, 3; 297-302
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: Koncepcja hydrostatycznego układu jazdy typu "skid steer" terenowego pojazdu specjalnego przeznaczenia
Modernization of all-terrain vehicle hydrostatic drive system for controllability improving
Autorzy:: Guzowski, A.
Sobczyk, A.
Powiązania:: https://bibliotekanauki.pl/articles/270016.pdf
Data publikacji:: 2012
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: napęd hydrostatyczny
modernizacja
sterowanie
pojazd terenowy
hydrostatic drive system
modernization
control
all-terrain vehicle
Opis:: Artykuł przedstawia pierwszy etap realizacji koncepcji budowy pojazdu terenowego z elektrohydraulicznym układem sterowania poprzez modernizację prototypowego pojazdu terenowego z napędem hydrostatycznym. Głównym celem projektu jest zbudowanie układu sterowania mechanizmem jazdy, pozwalającego na użycie zaawansowanych procedur monitorowania warunków obciążenia i sprzężonych z nimi algorytmów sterowania. Przedstawiono zakres niezbędnych podstawowych zmian w strukturze układu napędu i sterowania, aby możliwe było osiągnięcie postawionych celów. Układ napędu i sterowania wzbogacono o elementy, które zostały dobrane w oparciu o wstępne obliczenia. Zmiany w strukturze układu umożliwić mają m.in. przełączanie zasilania silników hydrostatycznych z równoległego na szeregowy. Sterowanie wysokością położenia każdego z kół ułatwi poruszanie się po nierównościach i pochyłościach terenu, jak i pokonywanie przeszkód. Końcowa ocena opisanych zmian w układzie sterowania będzie dokonana podczas testów poligonowych, w czasie których układ kontrolno-pomiarowy umożliwi sprawdzenie i ocenę różnych algorytmów sterowania.
The article presents first stage of concept to build and development of prototype hydrostatically driven vehicle which was primary designed and build in Institute of Machine Design fluid power laboratory. The main goal of project is creation of vehicle drive mechanism control system which allow introducing advanced procedure of working conditions monitoring and related to them control algorithms. Such modified hydrostatic machine will be treated as a mobile object of tests with special attention to drive control in case of moving through undefined terrain or surroundings (special application). Thus, in article contents, range of main changes in drive system structure was described to fulfill assumed task which should be obtained. At this stage of hydraulic scheme with specification of system components, which were chosen based on estimated calculation, were presented. First of all, reconstruction of hydraulic system in way to obtain capabilities of drive was proposed, allowing for parallel to serial connection of hydrostatic motors which drive the wheels, resulting in 2 - stage speed control in relation to external driving resistance. Additionally hydraulic suspension system will allow to undercarriage position control in relation to slope or in case of overcoming obstacles. Final verification of described changes will be possible during field tests of vehicle drive control system. The electrohydraulic valves will be controlled by use of CANBus components with assist of measuring transducers what give opportunity check out and assess of different control algorithms of such parameters as speed, utilization of input ICE power, fuel consumption, as well as later, quality of control from safety and ergonomic point of view.
Źródło:: Inżynieria Maszyn; 2012, R. 17, z. 4; 54-66
1426-708X
Pojawia się w:: Inżynieria Maszyn
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "hydrostatic control" wg kryterium: Wszystkie pola

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język