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Johan Hallman
Johan Hallman has worked as a mechanical engineer at Huddig since 2020. Before that, he came from Volvo CE as a development engineer where he designed hydraulic systems and was involved in the development of hybrid systems for electrified construction machines.
He has been interested in technology since he was a child, while his interest in hydraulics was awakened during his studies at the Master of Science in Engineering program at Linköping University. His time at Volvo began after graduation with field support and parallel work on new development of hydraulic systems.
- At Volvo, I worked from product maintenance of systems fifteen years in the past to development of systems fifteen years in the future. To solve problems, you have to learn how something works, so servicing existing systems is very educational. The combination of service and new development was a good way for me to come up with new solutions to challenges we had.
His last years at Volvo were mainly spent testing the hydraulic systems of the future and working on the development of electric hybrids.
- I've spent many hours in the development lab at Volvo and have had the privilege of working on several different solutions for electric and hybrid operation of construction machinery. Now it feels like the industry is maturing, and we are seeing more electrified machines out in the field - it's a cool journey to be a part of.
Today, Johan is involved in several development projects at Huddig while being involved in production and solving problems. Something he appreciates very much is the collaboration with colleagues.
- The interesting thing about my role at Huddig is that I touch many disciplines and subsystems - this means that I work with almost all of them. Since hydraulics interacts with software, electricity and mechanics, I get involved in a lot. It is both exciting and challenging and it is a special kind of challenge to solve problems in a machine that has never started than in a machine out in the field.
He works a lot with Huddig's full hybrid excavator HUDDIG TIGON where he sees new opportunities for both the machine's performance and the industry in general.
- There are so many benefits to hybrid technology, not just environmental ones. By allowing the diesel to run at a steady, optimal speed and controlling the hydraulics with the electric drive, you charge the battery while getting a fast responsive hydraulic system, to name a big advantage. It also means less wear on the diesel engine. We have built a machine that reduces the climate footprint while improving operating economy and power.
The electrification of the construction industry is in full swing but will take time, while the increased costs need to be covered.
- The market has to pay the price for the green transition, and it is expensive before processes are optimized and new technologies mature. I believe we need new perspectives on energy supply given the challenges we face today, where flexibility and local solutions can be important. On the road to new standards, we also need action from governments and the EU - something we hope to see more of in the near future for the transition to be sustainable and effective," Johan concludes.
