Enabling Future Off-Road Mobile Machinery

Course Objectives

• Understand the principles and challenges of electrification and decarbonization of off-road mobile machinery.
• Explore novel hydraulic architectures such as electro-hydraulic actuation (EHA), multi-pressure,  digital hydraulics
• Analyze efficiency, noise reduction, and control strategies in electrified systems.
• Dive in electric drives and core components design and modeling technologies for hybrid and fully electric systems.
• Understand open research challenges

Target Audience

PhD students in mechanical engineering, electrical engineering, and related fields with interest in off-road mobile machinery, fluid power/hydraulics, and electrification. Also, R&D engineers are welcome!

Course Structure

Day 1 – Mon, June 8., afternoon only: Introduction & Fundamentals

• 11 – 12 Lunch, meet Konetalo, Korkeakoulunkatu 6, main lobby front of auditorium K1703
• 12 – 14, K1703: Overview of off-road mobile machinery and electrification trends. 2 hours, Professor Tatiana Minav, Tampere University, Finland
  • Key drivers: sustainability, emissions, efficiency.
  • Basics of electric powertrains and hybrid architectures.
• 14.00 Bus at front of the parking building of the campus: Industrial visit, 14.30 -16.45: Sandvik
• 18 – 19: Social event and grill food, IHA mobile laboratory, Hervanta Campus.

Day 2 – Tue, June 9.: Novel Hydraulics & Components

• 8.30 – 12, K1703: The Concept of Electro-Hydraulic Drive Networks and Their Control. 4 hours, Professor Lasse Schmidt, Aalborg University, Denmark
• 12 – 13: Lunch
• 13 – 14, K1703: The electro-hydraulic solution for electrified machinery. 1 hour, Jukka Myllymäki, Bucher Hydraulics, Finland
• 14 – 16, K1703: Continuous Energy Recovery System in Hydraulic Cylinders for cyclic operations. 2 hours, Luca Romagnuolo, University of Naples Federico II, Italy
• 16 – 17, K1703: Composite and other new materials in fluid mechatronic systems: current applications and future prospects. 1 hour, Professor Alexander Skvorchevsky, Research Centre of Robotics, Mechatronics and Production Informatization, Kharkiv, Ukraine
• 18 – 19: Social dinner, Main building, Hervanta Campus.

Day 3 – Wed, June 10: Control Systems & Efficiency

• 8.30 – 9, K1704: E-pumps for Off-road Machinery, 1 hour, Johannes Jokisuu, Bosch Rexroth, Finland
• 9 – 12, K1704: Why does the hydraulic actuator wear out? Materials, friction and surfaces in practice. 3 hours, Justyna Skowrońska, Politechnika Łódzka, Poland
• 12 – 12.45: Lunch
• 12.45 – 15.15, K1242: Special cooling of electric machines, with a focus on mobile/off-road machinery applications. 2.5 hours, Associate Professor Pia Lindh, LUT University, Finland
  • Latest advances in direct liquid cooling, including additive manufacturing approaches.
  • An active learning exercise: explore possible thermal parameters and perform calculations using ready-made Matlab code.
• 15.15 – 17, K1704: Application of Frequency Converters in Hydrostatic Systems. 2 hours, Łukasz Stawiński, Politechnika Łódzka, Poland
• 18.30: Social event in Soutupaviljonki, Hatanpäänkatu 6,, Tampere: Dinner and Sauna sponsored by Bosch Rexroth. Take tram 3 last stop. Take swim suit and your own towel.

Day 4 – Thu, June 11: Realization challenges in Electrified Machinery

• 8.30 – 12, K1703:Noise sources in hydraulic and electric systems. 4 hours, Professor Liselott Ericson, Linköping University, Sweden
  • Noise from hydraulic pumps and motors
  • Impact of electric motor.
• 12 – 13: Lunch: Salad bar, sponsored by Parker
• 13 – 14, K1703: Thermal Management in Off-road Machinery. 1 hour, Jari Rantanen, Parker, Finland
• 14.15: Bus at front of the parking building of the campus: Industrial visit, 14.30 -16.00: Kalmar
• 17 – 18: Social dinner, Main building, Hervanta Campus.

Day 5 – Fri, June 12: Materials and New Components

• 8.30 – 9, K1703: An innovative cycle for less use of resources & efficient oil conditioning, 1 hour, Arto Laamanen, Hydac, Finland
• 9 – 11, K1703: Application of Frequency Converters in Hydrostatic Systems. 2 hour, Łukasz Stawiński, Politechnika Łódzka, Poland
• 11 – 12, K1703: How to measure wear and friction? From tribology to microscopy. 1 hours, Justyna Skowrońska, Politechnika Łódzka, Poland
• 12 – 13: Lunch at IHA Laboratory Tour with Demo of eeve electric autonomous wheel loader, sWille hybrid wheel loader and Futura all-electric rough-terrain mobile robot platform
• Student presentations: Research ideas and proposals
• 13 – 14.00: Industrial visit: Ponsse & EPEC

Keywords

Electrification, Off-road machinery, Novel hydraulics,  Control systems, Noise reduction, Efficiency, Emerging electric and hydraulic components, Thermal and power management.

Assessment

• Short quizzes
• Simulation exercises
• Final group presentation

Acknowledgements

Non-profit sponsor

Industrial sponsors