Results 191 to 200 of about 2,285 (211)

Development of Hydromechanical Transmission (HMT) for Bulldozers

SAE Technical Paper Series, 1994
<div class="htmlview paragraph">Conventional medium to large-sized bulldozers have a powertrain comprised of a manually operated powershift transmission connected in series with a torque converter. There is a growing need, however, for a power train that is more efficient and easy to operate, thereby increasing bulldozer productivity.</div>
Hiroyuki Mitsuya, Keiji Otani, Tsutomu Ishino, Ryouichi Maruyama, Toshiyuki Akasaka   +4 more
openaire   +1 more source

Integrated control strategy of tractor hydromechanical continuously variable transmission

Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2020
Given the transmission efficiency fluctuation and response lag problem of hydromechanical continuous variable transmission combined with the complex and variable working environment of a tractor, an integrated control strategy of engine throttle compensation–hydromechanical continuous variable transmission speed regulation is adopted for dual-flow ...
Guang Xia, Huayu Zong, Xiwen Tang, Linfeng Zhao, Baoqun Sun   +4 more
openaire   +1 more source

Analysis of a Hybrid Multi-Mode Hydromechanical Transmission

SAE Technical Paper Series, 2007
<div class="htmlview paragraph">A multi-mode hybrid hydromechanical transmission (HMT) with infinite variability is designed to meet the power transmission needs of medium duty on- and off-road vehicles. A hydraulic pump-motor assembly provides output speed and torque variability in an input coupled split power configuration.
Doug Fussner, Glenn Wendel, Chris Wray
openaire   +1 more source

Optimization of components and layouts of hydromechanical transmissions

International Journal of Fluid Power, 2017
In the agricultural and work machine sectors, hydromechanical transmission competes with traditional mechanical transmission. However, the double energy conversion taking place in hydrostatic transmission lowers the efficiency of the entire transmission.
Antonio Rossetti, Alarico Macor, Martina Scamperle   +2 more
openaire   +1 more source

FRICTION CLUTCH CONTROL IN HYDROMECHANICAL TRANSMISSION

Вестник Белорусско-Российского университета, 2021
Vladimir Petrovich Tarasik, Olga Vladimirovna Puzanova   +1 more
openaire   +1 more source

Continuous formulation of the layout of a hydromechanical transmission

Mechanism and Machine Theory, 2019
Abstract In this paper, an analytical formulation of the layouts of three-shaft hydromechanical transmissions is presented. The formulation was obtained starting from the Willis equation for the planetary gears. Its graphical representation results in a polar plot dependent only on the angular coordinate: by varying the latter between 0 and 2π, all ...
Rossetti A, Macor A
openaire   +2 more sources

Startup and Regeneration Problems in Hydromechanical Transmissions

SAE Technical Paper Series, 1968
<div class="htmlview paragraph">Hydromechanical transmissions employing hydrostatic pumps and motors have high inherent efficiency if the ratio of power transmitted hydraulically to that transmitted mechanically is small. Where significant horsepower is to be transmitted over a wide range of torque multiplication, however, simple input-coupled ...
openaire   +1 more source

A Hydromechanical Transmission Optimized for Automotive Application

SAE Technical Paper Series, 1991
<div class="htmlview paragraph">The application of hydromechanical continuously variable transmission technology to a wide variety of automotive applications is made feasible by a unique design approach. Analysis indicates that the basic design scales readily to accommodate power inputs of under 7.5 KW to over 750 KW. The first prototype has been
openaire   +1 more source

Designing a Hydromechanical Transmission for Heavy Duty Trucks

SAE Technical Paper Series, 1972
<div class="htmlview paragraph">A new automatic transmission for heavy-duty trucks is going into production. It is a dual mode, hydromechanical transmission, incorporating a control system to minimize engine fuel consumption. The size, weight, and price are generally competitive with other automatic and manual transmissions.</div>
openaire   +1 more source

Hydromechanical Transmissions as Applied to Mobile Equipment

SAE Technical Paper Series, 1969
<div class="htmlview paragraph">A direct hydrostatic transmission was tested in a grader in 1961 and 1962. Certain difficulties experienced led to the development in 1963 of a novel hydromechanical transmission using the same pump and motor units.
openaire   +1 more source