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Perkins presents new hybrid technologies on three engines at bauma Munich 2019

Hybrid-electric: The flexibility of the system provides opportunities for further efficiency and functionality improvements in the whole machine through use of 48-volt electrics.
Hybrid-electric: The flexibility of the system provides opportunities for further efficiency and functionality improvements in the whole machine through use of 48-volt electrics.

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N4-AC6160, PO Box 610
Mossville, IL
US, 61552-0610

Website:
perkins.com

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Perkins presented a dedicated team and new technologies focused on hybrid and electric power solutions that are relevant and adapted to meet the specific needs of construction machines at bauma 2019.

Following a significant investment in hybrid engines and electrification research, Perkins showed a range of technologies that will add real value to original equipment manufacturers (OEMs) as they design the next generation of off-highway machines.

The hybrid-electric, hybrid-mechanical and hybrid-hydraulic power technologies complement Perkins existing 0.5-18 litre range of diesel engines, ensuring OEMs and their customers benefit from machines that are more productive, quieter and have lower fuel consumption, whatever power solution they select.

Matt Coleman, product director at Perkins said: "Through our close technical collaboration with our OEMs, and using a huge amount of real field data, we develop solutions that are truly relevant to the construction sector. By collaborating with Perkins, OEMs can accelerate their research and development project, saving themselves time and money."

Hybrid-mechanical: This stores energy in a high-speed flywheel which can be delivered back to the machine. This is particularly useful in hybridizing machines that run a cyclic operation and need very intense bursts of additional power.

To provide the close technical collaboration required to meet customers' needs, Perkins has established a dedicated team - the Perkins Expanded Offering Product Team.

"Our research programmes into future power trains have focused on both fundamental technologies such as battery ruggedization, and on system integration," said Matt. "We find ourselves in an excellent technology leadership position to help our OEM partners develop the machines of tomorrow."

With access to millions of hours of machine operating data, Perkins has identified that the operating cycles of real construction machines varies from one application to another, and as machine size increases.

The duty cycles, operating conditions and packaging constraints for off-highway machines drive the need for specific configurations that are highly customised to the individual application.

"There isn't one solution that fits all machines," said Matt. "Perkins is establishing itself as an integrator with multiple hybrid and electric power technologies.

"The difference between off-highway machines in operating conditions means that there is limited, if any, value in technology transfers from other sectors such as automotive, truck or marine."

Perkins is offering hybrid and electric technologies across its EU Stage V power range from 6 to 470 kW (8 to 630 hp).

At bauma 2019 Perkins highlighted three hybrid power solutions through three engines, all at 75 kW (100 hp). To demonstrate modularity and flexibility, all three hybrid solutions are based on the Perkins Syncro 2.8 litre.

Hybrid Hydraulic: This stores energy in hydraulic accumulators. In some machines this can be the most practical and cost-effective hybrid solution as it easily integrates into existing machine hydraulic systems.

The first technologies to be shown are:

Hybrid-electric: There are several ways to incorporate the electric motor or generator, with Perkins preferred arrangement delivering excellent fuel saving benefits while moderating the installation impact and minimizing the cost impact on the machine. The flexibility of the system provides opportunities for further efficiency and functionality improvements in the whole machine through use of 48-volt electrics. 

Hybrid-mechanical: This stores energy in a high-speed flywheel which can be delivered back to the machine. This is particularly useful in hybridizing machines that run a cyclic operation and need very intense bursts of additional power. Apart from the very quick energy release, the advantage over hybrid- electric is in installation size.

Hybrid-hydraulic: This stores energy in hydraulic accumulators. In some machines this can be the most practical and cost-effective hybrid solution as it easily integrates into existing machine hydraulic systems. Software and integration of machine systems are key to achieving great savings from this technology.

"For some machines and specific requirements such as mini excavators and compact wheeled loaders, full electrification of vehicles is already a practical commercial proposition," said Matt. "It is possible to replace a diesel engine with lithium-ion batteries and an electric motor. However, the dynamics of the defining features such as battery durability, cost, recharging infrastructure and product support, do not immediately translate into an attractive fully electric proposition for all operators of construction machines. Since the customer value proposition is very diverse, the range of solutions is equally diverse. One size does not fit all. The technologies that Perkins is proposing offer practical benefits in terms of productivity and operating costs in a much shorter timeframe."

Tom Carlill, new product introduction programme manager in the Perkins Expanded Offering Product Team, added: "Our conversations with OEMs indicate that their research and development departments are under intense pressure to implement regulatory changes and customer features to current machines, as well as to plot a path towards future technologies.

"By working with the Perkins Expanded Offering Product Team they will be able to achieve better project outcomes and deliver more productive, cost competitive and more relevant solutions for their markets," said Tom. "By sharing our advanced tool set, skilled team and excellent facilities OEMs will achieve these superior results quickly and at the lowest cost."

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