Volvo CE and Norrhydro develop electro-hydraulic resolution that improves gas effectivity in development tools


If extensively adopted, it may assist the trade meet its sustainability ambitions whereas on the similar time enhancing machine efficiency.

Whereas the complete particulars of the know-how are carefully guarded, the Norrhydro patented system, NorrDigi, makes use of a multi-chamber digital hydraulic actuator that improves system effectivity that a lot of a machine’s hydraulic system might be discarded or downsized. It removes the necessity for a important management valve – the center of a standard hydraulic system – together with extreme pump capability, piping and hoses. It makes use of much less power and affords the prospect for downsizing the engine capability. 

The continuing validations of the answer have demonstrated each effectivity enchancment and an elevated machine productiveness. With carbon dioxide emissions lowered, it’s making a radical lower within the machine’s carbon footprint. Volvo CE and Norrhydro have signed a multi-year settlement the place Volvo CE will proceed to develop the know-how in partnership with Norrhydro, and subsequently purpose for first mover benefit. Volvo CE has unique rights to its use in its merchandise in the course of the improvement course of.

In contrast to conventional cylinders with two chambers – one pushing, one pulling – the digital hydraulic actuator makes use of 4 chambers that may be linked in as much as 16 completely different permutations, relying on the load required by the specified operation. “It is a bit like a 16-speed linear transmission,” says Peter Stambro, Vice President Enterprise Growth at Norrhydro. “Multi-chamber cylinders have been round for some time, however what makes our ones distinctive is the best way they’ve been mixed with superior digital management programs, whose advanced algorithms and computational velocity permit for immediate response, however utilizing solely a fraction of the power for a similar machine maneuver or motion in comparison with a standard system.” 

“It is a prime instance of how partnerships with exterior consultants can speed up our personal sustainability journey by way of technical innovation,” says Thomas Bitter, Head of Expertise at Volvo CE. “In analysis to date, the system exhibits best advantages in bigger machines – within the case of excavators, these 30 tons and above. Nevertheless, sooner or later, the know-how is also utilized in electrical machines, the place its a lot larger hydraulic system effectivity would successfully lengthen the battery life and working window,” concludes Bitter.

With a Volvo EC300E 30 ton excavator as a take a look at mattress, the know-how has handed its preliminary proof-of-concept part and sturdiness exams, and is now transferring to a discipline take a look at interval, the place prototypes are utilized in actual world functions by chosen buyer companions. It’s forecast that the system will likely be provided on the corporate’s excavators by 2024 on the newest. 

“The power to develop this radical know-how in partnership with a number one participant within the development tools trade affords many benefits, together with accelerating the time to marketplace for commercialized merchandise,” say Yrjö Trög, CEO of Norrhydro. “We are going to put money into a brand new multi-million euro world-class manufacturing facility in assist of the launch, and I look ahead to the market introduction of the NorrDigi system along with Volvo CE.”



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