Results 11 to 20 of about 86,076 (259)

A study on torsional vibration suppression using centrifugal pendulum vibration absorber with slider-crank chain

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In recent years, high-power and low-cylinder engines are widely used. These engines produce a strong torsional vibration due to engine combustion in the powertrain. In automatic transmissions, a lock-up clutch which connects the engine and the gear train
Takahiro RYU   +3 more
doaj   +1 more source

Tracking control and robustness study of shifting process [PDF]

open access: yesArchives of Transport, 2018
Heavy dump vehicles are usually working with big load changes and bad work environment, thus change the friction performance of transmission clutches, as well as great affect the shift quality seriously, which influence the vehicle performance.
Xin-xin Zhao, Chao Guan
doaj   +1 more source

Design and Analysis of Mechanisms of 7-, 8- and 9-Speed Automatic Transmissions for Vehicle Powertrains

open access: yesEnergies, 2023
As the core device of engine-driven vehicle powertrains, the automatic transmission (AT) can obtain different output torques and speeds. Designing new mechanisms is the foundation for developing innovative ATs.
Wenjian Yang, Xindong Xiao
doaj   +1 more source

Automatic Transmissions. Complex of Algorithms of “Clutch-to-Clutch Shifts” Technology: Analysis of Architecture, Generalized Structure, Development. Part 1

open access: yesМеханика машин, механизмов и материалов, 2021
The article continues the series of the author publications, which considers the main provisions of the “Clutch-to-Clutch Shifts” (CTC) technology — technology for automatic controlling the switching of automatic transmission (AT) stages, used in the ...
Leonid G. Krasnevskiy
doaj   +1 more source

Automatic Detection of Wireless Transmissions [PDF]

open access: yesIEEE Access, 2020
The current understanding of activity in the wireless spectrum is limited to mostly punctual studies of aggregated energy values. However, there is a need and increasing technological means for a better understanding of spectrum usage by automatically detecting and recognizing wireless transmissions in an unlicensed or shared frequency band.
Timotej Gale   +4 more
openaire   +2 more sources

Fuzzy-Type Fast Terminal Sliding-Mode Controller for Pressure Control of Pilot Solenoid Valve in Automatic Transmission

open access: yesIEEE Access, 2019
The performance of the pilot solenoid valve (PSV) has a significant impact on the efficiency and service life of an automatic transmission (AT) in automobiles, and it is very difficult to achieve a perfect pressure tracking performance due to the ...
Xiangwen Fan   +3 more
doaj   +1 more source

Modeling Combined Operation of Engine and Torque Converter for Improved Vehicle Powertrain’s Complex Control

open access: yesVehicles, 2022
This paper proposes an alternative model for describing the hydro-mechanical drive operation of the automatic transmissions. The study is aimed at preparing a reliable model that meets the requirements of sufficient informativeness and rapidity to ...
Maksym Diachuk, Said M. Easa
doaj   +1 more source

Optimizing Automatic Transmission Double-Transition Shift Process Based on Multi-Objective Genetic Algorithm

open access: yesApplied Sciences, 2020
In order to improve fuel economy, the number of gears in the hydraulic automatic transmission of heavy-duty mining trucks is continuously increasing. Compared with single-transition shifts, double-transition shifts can optimize the structure of multi ...
Heng Zhang   +3 more
doaj   +1 more source

Influences of Helix Directions and Helix Angles of Planetary Gear Set Designs on Thrust Bearing Power Losses in an Automotive Gear Train [PDF]

open access: yes한국정밀공학회지
Automatic transmissions, which have the advantages of compact structure and smooth shifting, are installed in various vehicles with engines and hybrid power sources.
Hyun Sik Kwon
doaj   +1 more source

Hydromechanical Automatic Transmission

open access: yesCommunications, 2009
This contribution describes some tests of hydromechanical infinitely variable transmission (IVT) on a test stand. Further, there is described a truck with installed IVT and tests of this IVT at real conditions. There is also shown a control system of the
Lubos Kucera   +3 more
doaj   +1 more source

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