Results 181 to 190 of about 2,285 (211)

A Hydromechanical Transmission Development

SAE Technical Paper Series, 1967
<div class="htmlview paragraph">This paper describes the results of the first step of a planned development program to produce a family of split path hydro-mechanical transmissions for military applications. The HMT-250 hydromechanical transmission has given superior performance, unlimited ability to change ratio without affecting service life ...
David M. Latson, Max Gordanier, Robert J. Dorgan, Russell L. Rio   +3 more
openaire   +1 more source

Characteristics of Multiple Range Hydromechanical Transmissions

SAE Technical Paper Series, 1972
<div class="htmlview paragraph">The purpose of this paper is to show the advantages of multirange hydromechanical transmissions and to show some basic relationships of primary design parameters. Hydromechanical transmissions can be designed so that they maintain a high efficiency over a wide range of torque/speed variations.
Eli Orshansky, William E. Weseloh
openaire   +1 more source

Mode Shifting in Hybrid Hydromechanical Transmissions

ASME/BATH 2015 Symposium on Fluid Power and Motion Control, 2015
Demands for low cost sustainable solutions have increased the use of and interest in complex hydromechanical transmissions for heavy off-road vehicles. In transmissions with multiple modes, an important condition is to maintain the tractive force during the mode shifting event.
L. Viktor Larsson, Karl Pettersson, Petter Krus   +2 more
openaire   +1 more source

Electronic-control system of hydromechanical transmission

Proceedings of the IEEE International Vehicle Electronics Conference (IVEC'99) (Cat. No.99EX257), 2003
By using electronic control systems instead of an ordinary open-loop control systems with mechanical operation and hydraulic servos, the fluctuation of the output speed of a multi-range hydro-mechanical variable transmission (HMT) can be reduced from 17% to 2% (with PID control logic), and to 1.5% (with fuzzy control logic).
null Yuan Shihua, null Hu Jibin, null Wang Ran   +2 more
openaire   +1 more source

Development of an Automotive Hydromechanical Transmission

SAE Technical Paper Series, 1978
<div class="htmlview paragraph">The development of an automotive hydromechanical transmission is described and the results of in-vehicle testing presented. Fuel economy and performance results are encouraging; emissions increase, however.</div> <div class="htmlview paragraph">A second generation transmission is in the design stage ...
William E. Weseloh, Kenneth E. Rudolph, James G. Pratt, Peter Huntley   +3 more
openaire   +1 more source

The Hydromechanical Transmission — Ideal and Real

SAE Technical Paper Series, 1968
<div class="htmlview paragraph">Analysis of the performance of a split-torque or input-coupled hydrostatic transmission by means of a mathematical model reveals features which are important to the designer and user alike.</div> <div class="htmlview paragraph">The quality of the hydraulic components of the transmission has profound ...
Warren E. Wilson, Charles D. Lemme
openaire   +1 more source

Design Optimization of Complex Hydromechanical Transmissions

Journal of Mechanical Design, 2013
Demands for higher fuel efficiency for off-highway applications motivate manufacturers to replace existing drive transmissions with more complex, high-efficiency transmissions. Increased intelligence and more advanced architectures are, however, more difficult to design and prototype.
Karl Pettersson, Petter Krus
openaire   +1 more source

Development of a Hydromechanical Steering Transmission

SAE Technical Paper Series, 1972
<div class="htmlview paragraph">The advantages of infinitely variable ratio steering and propulsion for track laying vehicles are well known. Studies and demonstrator programs in the past decade have indicated that the hydromechanical transmission has the most promise of providing infinitely variable ratio for military vehicles.
Robert J. Dorgan, Russell L. Rio, David M. Latson   +2 more
openaire   +1 more source

Design of hydromechanical transmission using network analysis

Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2005
A systematic approach to the design of a three-shaft hydromechanical transmission (HMT) is proposed. The three-shaft HMT is classified into 12 basic configurations depending on the planetary gear position connected with the hydrostatic unit (HSU) at the input and the output shafts.
Dukhwan Sung, Sungho Hwang, Hyunsoo Kim
openaire   +1 more source

HYDROMECHANICAL TRANSMISSION SYSTEM

Abstract Invention is relates to transport vehicle manufacturing, in particular to transmission hydromechanical systems. The aim of invention is to increase the reliability of the vehicle by smoothing out fluctuations in the speed range.  
Shcherbakov V., Nikolaenko V., Mikulik T.   +2 more
openaire   +1 more source