Öppna denna publikation i ny flik eller fönster >>2019 (Engelska)Ingår i: Energies, E-ISSN 1996-1073, Vol. 12, nr 9, artikel-id 1683Artikel i tidskrift (Refereegranskat) Published
Abstract [en]
Fuel efficiency has become an increasingly important property of heavy mobile working machines. As a result, Hybrid Hydromechanical Transmissions (HMTs) are often considered for the propulsion of these vehicles. The introduction of hybrid HMTs does, however, come with a number of control-related challenges. To date, a great focus in the literature has been on high-level control aspects, concerning optimal utilization of the energy storage medium. In contrast, the main topic of this article is low-level control, with the focus on dynamic response and the ability to realize requested power flows accurately. A static decoupled Multiple-Input-Multiple-Output (MIMO) control strategy, based on a linear model of a general hybrid HMT, is proposed. The strategy is compared to a baseline approach in Hardware-In-the-Loop (HWIL) simulations of a reference wheel loader for two drive cycles. It was found that an important benefit of the decoupled control approach is that the static error caused by the system’s cross-couplings is minimized without introducing integrating elements. This feature, combined with the strategy’s general nature, motivates its use for multiple-mode transmissions in which the transmission configuration changes between the modes.
Ort, förlag, år, upplaga, sidor
MDPI, 2019
Nyckelord
hydromechanical transmissions, hybridization, control, construction machinery; decoupled control, hardware-in-the-loop
Nationell ämneskategori
Annan maskinteknik
Identifikatorer
urn:nbn:se:liu:diva-157504 (URN)10.3390/en12091683 (DOI)000469761700099 ()
Forskningsfinansiär
Energimyndigheten, P39367-2
Anmärkning
Funding agencies: Swedish Energy Agency (Energimyndigheten) [P39367-2]
2019-06-142019-06-142023-08-28Bibliografiskt granskad