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electronic journal Machines and Plants: Design and  Exploiting

Bauman Moscow State Technical University. El № FS 77-61859. ISSN 2412-592X

On the Optimally Controlled Hydrostatic Mechanical Drive in Case of Flywheel Acceleration

Machines and Plants: Design and Exploiting # 02, April 2016
DOI: 10.7463/aplts.0216.0837892
Article file: Aplts_Apr2016_016to024.pdf (1330.72Kb)
author: V.A. Korsunskii1,*



1 Bauman Moscow State Technical University, Moscow, Russia

An improving dynamic quality of vehicles and enhanced fuel efficiency are gained thanks to the combined power system (CPS), comprising a main energy source - internal combustion engine (ICE) with an attained level of the power source - and an auxiliary energy source, i.e. an energy storage device  (a flywheel).
To solve this problem was developed a mathematical model of CPS comprising internal combustion engine and flywheel energy storage (FES) with stepless drive.
The stepless drive of the flywheel is made to be hydrostatic mechanical to raise the system efficiency. To reduce the drive weight and simplify the control system in the hydraulic part of the flywheel drive is used only one hydraulic unit being controlled.
The paper presents a kinematic diagram of the track-type vehicle equipped with the CPS that has a hydrostatic mechanical drive of the flywheel and a mechanical transmission.
A mathematical model of the system comprising an ICE, hydrostatic mechanical drive, and FES with stepless drive has been developed. This mathematical model was used to study the influence of ICE and flywheel drive parameters on the dynamic characteristics of the system.
The paper estimates the impact of flywheel energy consumption, pressure in the hydraulic system, and control parameter of hydrostatic mechanical drive on the charging time of FES.
The obtained piecewise linear law to control the regulation parameter of the hydraulic unit allows us to minimize the charging time of the flywheel at the short-term stops and in the parking area of a tracked vehicle equipped with a CPS.
The causes affecting the performance of ‘ICE – drive – flywheel’ system in the course of the flywheel acceleration are a restricted maximum power of the engine, as well as a limited generating capacity, and a maximum flywheel drive hydro-system pressure.
The obtained results allow us to determine rational parameters of the flywheel and the laws of drive control to provide their further optimization, with a tracked vehicle being in motion, under random external effect.

References
  1. Korsunskiy V.A. Analysis of dynamic characteristics of a transport vehicle with combined power installation and hydrostatic transmission. Nauka i obrazovanie. MGTU im. N.E. Baumana = Science and Education of the Bauman MSTU, pp.145-162. 2013, no. 9. (in Russian). DOI: 10.7463/0913.0602200
  2. Zabavnikov N.A., Korsunskiy V.A., Gerasimov A.N. Dinamika gusenichnoy mashiny s makhovichnym akkumulyatorom energii. [Dynamics of tracklaying vehicle with flywheel accumulator]. Moscow, Bauman MSTU Publ., 1987. 44 p. (in Russian).
  3. Korsunskiy V.A. [Dynamic qualities of the track vehicle with combined power installation and mechanical transmission at dispersal]. Inzhenernyy zhurnal: nauka i innovatsii = Engineering Journal: Science and Innovation, 2013, no. 10. Available at: http://engjournal.ru/articles/983/html (accessed 05.04.16) (in Russian)
  4. Batenko A.P. Upravlenie konechnym sostoyaniem dvizhushchikhsya ob''ektov [Moving objects final state control]. Moscow, Sovetskoe radio Publ., 1977. 256 p. (in Russian).
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