electrically controlled hydraulic system

Ngày tải lên: 17/10/2013, 03:15

Ngày tải lên: 29/10/2013, 20:15

... Hydraulic systems are classified as either open-center or closed-center. Open-center systems have only open-center selector valves and closed-center systems only closed-center valves. Hydraulic ... flow in a hydraulic system the heart of any hydraulic system can be a hand pump, power-driven pump, accumulator, or any combination of the three. Finally, a means of converting hydraulic pressure ... components of the hydraulic system, including the devices which actuate, discharge, and control the flow of hydraulic fluid and those devices which sense, control, and limit hydraulic pressure....

Ngày tải lên: 22/12/2013, 18:16

Ngày tải lên: 02/01/2014, 09:38

... three-way Design of Hydraulic Systems for Lift Trucks 33 Chapter 3 Hydraulic Components Hydraulic components can be grouped according to their function: I. Valves Hydraulic valves are ... Design of Hydraulic Systems for Lift Trucks 9 Pump, variable volume Pump, pressure compensated Hydraulic motor, one direction of flow Hydraulic motor, reversible ... connectors. IV. Hydraulic reservoirs There are two main types of reservoirs- open and closed. The hydraulic systems for industrial trucks use open type reservoirs. V. Hydraulic fluid The...

Ngày tải lên: 23/03/2014, 11:37

... Single hydraulic system fails Major: Two (out of 3) hydraulic systems fail Hazardous: All hydraulic sources fail, except RAT or APU (US1549 Hudson River A320 – 2009) Catastrophic: All hydraulic systems ... Electro-Hydrostatic Actuators (EHA) or local hydraulic systems, consisting of • Miniature, electrically driven, integrated hydraulic power generation system • Hydraulic actuator controlled by electrical input ... Redundancies • Two independent hydraulic systems + one electric system (backup) • Primary hydraulic power supplied by 4 EDP’s per system • All primary flight controls have 3 channels – 2 hydraulic + 1 electric • 4...

Ngày tải lên: 28/03/2014, 10:20

... isn’t small enough, the system can’t be considered as second- orde system. CONCLUSION This paper has presented an accurate mathematical model for valve control hydraulic system with long pipeline. ... Deutsch NONLINEAR PHENOMENA IN HYDRAULIC SYSTEMS Satoru Hayashi Professor Emeritus, Tohoku University, 981-3202, Sendai, Japan HZK00631@nifty.ne.jp ABSTRACT Hydraulic systems include various non-linearities ... a variety of nonlinear phenomena occur in the systems. This paper deals with intrinsic nonlinear dynamic behaviors of hydraulic systems. KEYWORDS Hydraulics, Nonlinear phenomena, Hard self- excitation,...

Ngày tải lên: 30/03/2014, 20:21

Ngày tải lên: 27/06/2014, 08:20

Ngày tải lên: 27/06/2014, 17:20

... computer controlled system that is commonly used. Figure 1.22 shows a relatively modern system that uses individual wheel control for ABS and is known as a four-channel system. The braking system ... 1.25 The electrically- operated throttle used with the traction control system Fig. 1.26 A traction control system 28 Common technology Fig. 1.28 The principles of air conditioning Computer controlled ... and turbocharging (exhaust system particulate traps also have a beneficial effect). Figure 1.33 shows a computer controlled diesel engine management system. The exhaust system is equipped with an...

Ngày tải lên: 19/01/2014, 23:20

... common to many of the systems can be used to perform effective diagnosis on a range of computer controlled systems. Also covered is a range of modern computer controlled systems, computer technology ... 1.2 Engine-related systems 2 1.3 Ignition systems 2 1.3.1 THE CONSTANT ENERGY IGNITION SYSTEM 2 1.3.2 DIGITAL (PROGRAMMED) IGNITION SYSTEM 3 1.3.3 DISTRIBUTORLESS IGNITION SYSTEM 6 1.3.4 OPTOELECTRONIC ... computer controlled vehicle systems that are in current use and to make an assessment of the technology involved that is common to a range of systems. It is this knowledge that is ‘common’ to many systems...

Ngày tải lên: 19/01/2014, 23:20

... common to many of the systems can be used to perform effective diagnosis on a range of computer controlled systems. Also covered is a range of modern computer controlled systems, computer technology ... exhaust system back to the induction system, on the engine side of the throttle valve. Figure 1.20 shows the principle of an EGR system. Fig. 1.20 Exhaust gas recirculation system Ignition systems ... control of a single computer and the resulting system is known as an engine management system. 1.5 Engine management systems (EMS) Engine management systems are designed to ensure that the vehicle...

Ngày tải lên: 13/02/2014, 09:20

... 1.2 Engine-related systems 2 1.3 Ignition systems 2 1.3.1 THE CONSTANT ENERGY IGNITION SYSTEM 2 1.3.2 DIGITAL (PROGRAMMED) IGNITION SYSTEM 3 1.3.3 DISTRIBUTORLESS IGNITION SYSTEM 6 1.3.4 OPTOELECTRONIC ... common to many of the systems can be used to perform effective diagnosis on a range of computer controlled systems. Also covered is a range of modern computer controlled systems, computer technology ... computer controlled vehicle systems that are in current use and to make an assessment of the technology involved that is common to a range of systems. It is this knowledge that is ‘common’ to many systems...

Ngày tải lên: 14/03/2014, 16:20

... evaluations of NLG systems against non-NLG alternatives. 3 STOP and its Clinical Trial The STOP system has been described elsewhere (Reiter et al., 1999). Very briefly, the system took as input ... Appropriate? When is it appropriate to evaluate an NLG system with a large-scale task or effectiveness evaluation which compares the NLG system to a non-NLG al- ternative? Certainly this should ... is seriously considering using the sys- tem, indeed customers may refuse to use a system without such testing. Controlled task/effectiveness evaluations are also scientifically important, because...

Ngày tải lên: 23/03/2014, 19:20

Ngày tải lên: 14/05/2014, 09:09

... organizing this information. v Controlled Synthesis of Nanoparticles in Microheterogeneous Systems Vincenzo Turco Liveri University of Palermo, Italy that in bulk systems. Some of these deviations ... microheterogeneous systems, each containing one of the various reactants. In the case of microheterogeneous systems whose structure is sensitive to mechanical or electrical stresses or of reactions controlled ... solute entrapment in such systems will also be given. Taking into account that reaction rates and mechanisms show distinctive features due to the peculiar structure of microheterogeneous systems, some information...

Ngày tải lên: 04/06/2014, 15:18

... EEG- based BCI system with a noninvasive FES system for the lower extremities. The schematic diagram of the overall system is shown in Figure 1A. The proposed system uti- lizes a contralaterally -controlled ... BCI-FES systems, the integration of BCI with lower extremity FES systems has received less atten tion. At the time of this publication, review of the literature revealed that no actual BCI-FES systems ... stimulation (FES) system that enables the direct brain control of foot dorsiflexion in able-bodied individuals. Methods: A noninvasive EEG-based BCI system was integrated with a noninvasive FES system for...

Ngày tải lên: 19/06/2014, 08:20

... wide-acceptance. 3. DYNAMICALLY RECONFIGURABLE SYSTEMS A dynamically reconfigurable system is a hardware-software system which is capable of saving and restoring the context of any system task, as and when required ... software im- plementation requires an operating system that can manage both software and hardware tasks. Such an operating system for reconfigurable systems (OS4RS) is an important infras- tructure ... Embedded Systems Volume 2008, Article ID 231940, 11 pages doi:10.1155/2008/231940 Research Article Sof tware -Controlled D ynamically Swappable Hardware Design in Partially Reconfigurable Systems Chun-Hsian...

Ngày tải lên: 22/06/2014, 19:20

Ngày tải lên: 22/06/2014, 19:20