Download or read book Experimental Hydrostatic Drive Vehicle Control and Mechanical Ddesign of Hydrostatic Transmission Components written by Timothy P. Sosnowski and published by . This book was released on 1996 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Hydrostatic Drive Vehicle written by Terry A. Hartzell and published by . This book was released on 1996 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Hydrostatic Drive Vehicle written by Darren R. Bisaro and published by . This book was released on 1996 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Control Aspects of Complex Hydromechanical Transmissions written by L. Viktor Larsson and published by Linköping University Electronic Press. This book was released on 2017-08-17 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis deals with control aspects of complex hydromechanical transmissions. The overall purpose is to increase the knowledge of important aspects to consider during the development of hydromechanical transmissions to ensure transmission functionality. These include ways of evaluating control strategies in early design stages as well as dynamic properties and control aspects of displacement controllers, which are key components in these systems. Fuel prices and environmental concerns are factors that drive research on propulsion in heavy construction machinery. Hydromechanical transmissions are strong competitors to conventional torque-converter transmissions used in this application today. They offer high efficiency and wide speed/torque conversion ranges, and may easily be converted to hybrids that allow further fuel savings through energy recuperation. One challenge with hydromechanical transmissions is that they offer many different configurations, which in turn makes it important to enable evaluation of control aspects in early design stages. In this thesis, hardware-in-the-loop simulations, which blend hardware tests and standard software-based simulations, are considered to be a suitable method. A multiple-mode transmission applied to a mid-sized construction machine is modelled and evaluated in offline simulations as well as in hardware-in-the-loopsimulations. Hydromechanical transmissions rely on efficient variable pumps/motors with fast, accurate displacement controllers. This thesis studies the dynamic behaviour of the displacement controller in swash-plate axial-piston pumps/motors. A novel control approach in which the displacement is measured with an external sensor is proposed. Performance and limitations of the approach are tested in simulations and in experiments. The experiments showed a significantly improved performance with a controller that is slightly more advanced than a standard proportional controller. The implementation of the controller allows simple tuning and good predictability of the displacement response.
Download or read book Design Simulation and Testing of an Energy Storage Hydrostatic Vehicle Transmission and Controller written by John Henry Lumkes and published by . This book was released on 1997 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Designing a High efficiency Hydrostatic Bicycle Transmission written by Matthew Tristram Socks and published by . This book was released on 2006 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrostatic bicycle drives use a working fluid instead of the common roller-chain to transmit power to the drive wheel. These transmissions are typically considered too inefficient for human power applications. An experiment consisting of a very simple hydrostatic drive was designed and built in an attempt to measure the efficiency of these devices at approximate cycling speeds. A theoretical model was also developed to help predict losses using a wider range of operational parameters. Due to shortcomings of the experiment design, the measured efficiencies were on the order of 60% - considerably lower than those theoretically possible. Although the experimental results are of limited value, this study highlights the importance of minimizing side-loading on hydraulic cylinder piston-rods during low-speed, low-pressure operation. The research is used to suggest several design features which may aid in continued attempts to develop a highly efficient hydrostatic transmission.
Download or read book Hydrostatic Transmissions for Vehicle Application written by Institution of Mechanical Engineers (Great Britain). Manufacturing Industries Division and published by . This book was released on 1981 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Experimental Study of an Electric Powered Hydrostatic Transmission System Toward Electric Vehicle Speed Control written by Carlyle J. Nelson and published by . This book was released on 1982 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Control of Hydraulic Actuator Using High speed On off Valves written by Kitti Wattananithiporn and published by . This book was released on 2002 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Hydraulic Hybrid Vehicle Powertrain Technologies written by Michael James Nieling and published by . This book was released on 2003 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling and Characterization of a Low Power Hydro mechanical Transmission with Comparisons to a Hydrostatic Transmission written by Kurt William Romans and published by . This book was released on 2005 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydro-mechanical transmissions attempt to balance the productivity increases of hydrostatic transmissions with the higher efficiencies of mechanical transmissions. This technology provides a smooth transition between gear ratios useful to power vehicles of various applications. This balance is accomplished by splitting the input power into two phases, hydrostatic and mechanical transmission. These two phases are then added back together through the use of a planetary gear set. In this study, laboratory experiments were preformed to characterize efficiency and power flow of the hydrostatic and mechanical phases of the transmission. Comparisons of the performance of a hydro-mechanical transmission with the stand alone hydrostatic transmission were made. A mathematical model was also developed to simulate transmission performance which was compared with experimental results. Conceptually, higher efficiencies would be achieved when all of the power is transmitted mechanically, under the assumption of no hydrostatic leakage. The results show this to be true while identifying transmission ranges of maximum efficiency. By being able to model and understand the characteristics of the hydro-mechanical transmission, the design can be optimized to fit different applications. This work also shows that by adding a simple planetary gear set to a hydrostatic transmission, efficiencies and power ranges can both be increased.
Download or read book Hydrostatic and Hydrodynamic Transmissions written by C. M. Edghill and published by . This book was released on 1977 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Control System for Hydrostatic Transmission for Passenger Vehicles written by Philip Arthur LeBar and published by . This book was released on 1969 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrostatic Transmission Control written by Jerker Lennevi and published by . This book was released on 1995 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simulation of Fluid Power Systems with Simcenter Amesim written by Nicolae Vasiliu and published by CRC Press. This book was released on 2018-04-09 with total page 761 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book illustrates numerical simulation of fluid power systems by LMS Amesim Platform covering hydrostatic transmissions, electro hydraulic servo valves, hydraulic servomechanisms for aerospace engineering, speed governors for power machines, fuel injection systems, and automotive servo systems It includes hydrostatic transmissions, automotive fuel injection, hydropower speed units governor, aerospace servo systems along with case studies of specified companies Aids in predicting and optimizing the static and dynamic performances related to the systems under study
Download or read book Proceedings of the 2013 International Conference on Advances in Construction Machinery and Vehicle Engineering written by Zheng Huiqiang and published by DEStech Publications, Inc. This book was released on 2013-11-01 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: the 10th anniversary of Chinese Journal of Construction Machinery. In order to celebrate the 20th anniversary of the association and the 10th anniversary of the journal, we will hold the following activities this year. 1. Continue to convene the fourth International Conference Symposium of 2013 on Construction Machinery and Vehicle Engineering Research Progress. 2. Continue to convene the fifth National Mechanical Engineering Doctoral Forum. This forum will be held in Xuzhou and the time is from August 20 to August 24 in 2013. 3. The highlevel expert forum will be held during Changsha Engineering Machinery Parts Expo. A dialogue will be taken on the issues of industry scientific innovation, accessories, testing and quality among universities, research institutes and enterprises. 4. The celebrations about the 20th anniversary of the association and the 10th anniversary of the journal will be conducted in Shanghai. The coun cil of the new editorial board and the executive director is convened for summing up the work of the association since it was founded 20 years ago and the work of the journal since it was founded 10 years ago, and planning for the future development. This International Conference is held in the circumstance of international economic crisis and domestic industrial structure adjustment. In the past year, sales market of construction machinery has been subjected to a certain shocks, and the enterprises have en countered a certain difficulties. For the future, however, I believe that such difficulties are temporary, and the prospect is bright. The construction machinery is to serve the mining and state infrastructure construction, and for China, along with most c ountries in the world which are developing countries, the infrastructure construction is still a significant part in the course of development, and the sound infrastructure will promote the development of their economies, even these countries which are in the leading position in economy development also attach great importance to the improvement of infrastructure. Therefore, construction machinery is indispensable and has a rigid demand. Currently, the international competition has not been only limited to terrestrial, since the possession of terrestrial was a foregone conclusion, but there will be more
Download or read book Wheeled Amphibians written by United States. Army Materiel Command and published by . This book was released on 1971 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
