Control strategy for a direct driven hydraulics system in the case of a mining loader

Tatjana Martinovski, Tom Sourander, Aleksi Turunen, Tatiana Minav, Matti Pietola

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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As a response to the strict government emissions regulations, hybridisation of non-road mobile machinery is required. In this paper, behaviour and efficiency of a hybrid mining loader is studied. The full prototype with implemented DDH (Direct Driven Hydraulics) units had been built; however, its performance was unsatisfactory – a large undershoot and steady-state error of 34 % persisted. Therefore, a new control strategy was suggested to overcome the issues. Performance of the system was enhanced by applying a fuzzy PID controller. As a result, reference tracking was significantly improved compared to the conventional PID control case and steady-state error of 1 % was achieved, while the overall efficiency was kept high in the range of above 50%.
Original languageEnglish
Title of host publication11th International Fluid Power Conference, Aachen, Germany
EditorsHubertus Murrenhoff
Place of PublicationAachen, Germany
PublisherRWTH Aachen University
Number of pages12
ISBN (Electronic)978-3-95886-215-9
Publication statusPublished - 2018
MoE publication typeA4 Conference publication
EventInternational Fluid Power Conference - Aachen, Germany
Duration: 19 Mar 201821 Mar 2018
Conference number: 11


ConferenceInternational Fluid Power Conference
Abbreviated titleIFK
Internet address


  • fuzzy control
  • direct driven hydraulics
  • mining loader
  • efficiency


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