NEW SYSTEMS OF ENERGY RECOVERY AND ELECTRIC-HYDRAULIC BATTERY MOBILE DRIVE

  • 1Institute of Machine Design, Faculty of Mechanical Engineering, Brno University of Technology, Brno, CZ
  • 2BOSCH REXROTH, s. r. o., Brno, CZ
  • 3Institute of Automation and Computer Science, Faculty of Mechanical Engineering, Brno University of Technology, Brno, CZ
  • 4Institute of Power Electrical Engineering and Electronics, Faculty of Electrical Engineering and Communication, Brno, CZ
  • 5Department of Industrial Engineering, FSOM, University “Union-Nikola Tesla“ of Belgrade, Belgrade, RS

Abstract

The article presents a brief overview of new electric-hydraulic systems of three selected earthmoving machines developed by means of mathematical modeling and simulation. These machines were as follows: a road tire roller, an excavator and a wheel loader. Their common feature was that a special innovative system was developed for each of them by Bosch Rexroth company (Brno) in cooperation with BUT (Brno University of Technology) using mathematical modeling of hydraulic, mechanical and electrical processes in the machines. Each of these machines represents an innovation: a module for the recovery of kinetic ("braking") energy was developed for the road roller, and an emission-free electric battery drive for the excavator and the loader as a replacement for the diesel engine drive.

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