The Way forward for Paving? Volvo Unveils Its CX01 Idea Compactor

Asphalt compactors aren’t often called essentially the most tough machine to function on the job. Though compactors carry out a vital operate particularly when smoothness specs are at stake, many contractors put their less-seasoned operators on them.

However what if these machines did not even require an on-board operator?

Enter Volvo Building Tools’s CX01 asphalt compaction idea, a deliberate ConExpo reveal that needed to wait till the current Utility Expo to get in entrance of contractors.

“We simply wished to look at what the way forward for compaction would appear to be,” Justin Zupanc, head of Volvo CE’s asphalt compaction growth staff, instructed Tools World on the present. “We wished to create a greater operator’s setting, scale back gasoline consumption and exhaust emissions and enhance productiveness.”

“Higher operator setting” interprets to no cab. As a substitute, a related fleet of CX01 single-drum models directed by a downloaded compaction plan could be both be remotely managed by an operator or managed autonomously.

Volvo already has an autonomous system on its TA15 haulers, now in buyer testing, and the plan is to check the same system on the CX01, Zupanc says.

The CX01 doesn’t have an articulation joint “so there is no stability level, there’s nothing that we are able to steer away from,” Zupanc says. Volvo solved this by utilizing a split-drum — which has two halves that may be operated independently   stored upright by utilizing a self-balancing management system. (The cut up drum comes off of its present 9-ton class machine bought in Europe.) To show, operators can differ the speed of pace of every half of the drum. “You may make a reasonably tight flip,” he says.

And whereas it would not be used whereas the unit is on asphalt, customers additionally would have the flexibility to pivot steer the machine. 

Rethink the paving course ofThe Volvo CX01 prototype compactor options guarding and emergency stops on every nook.Tools World

Volvo says the CX01 which stands for compaction experimental unit No. 1  offers the means to “essentially rethink the paving course of.” By eradicating the operator, you are additionally eradicating their publicity to vibration, noise and dirt. 

As envisioned, a fleet of CX01s might be deployed on bigger jobs and talk not solely with one another however with different machines on website. The machines may survey the job, report on mat circumstances resembling density, temperature and passes (which clever compactors are already doing) and decide when and the place to compact. “They will shift over if an space is already compacted,” Zupanc says. “All info is offered to the crew and to different machines. You could possibly even ship it to the asphalt plant.”

The machine’s compact design and maneuverability may additionally result in streamlined compaction cycles, decreased prices and extra agile work patterns, Volvo says. The rolling sample, weight and variety of rollers might be adjusted to match the width, thickness and pace of the paving operation. Utilizing Volvo’s present Co-Pilot system, operators can use a touchscreen to remotely management the compactors.

Versatile energy

The CX01 has a versatile energy system. It has each a 1.7-liter diesel engine and an vitality storage system that may be operated indiesel-only, hybrid or absolutely electrical modes. “The diesel is barely there to spin the 20-kilowatt generator,” Zupanc says. The generator in flip powers two 48-volt ultracapacitors positioned on either side of the drum, which in flip are powering three 14-kilowatt electrical motors, one for either side of the drum, and one other to energy the vibration system eccentrics. 

“You may run it with the diesel engine on, and it is at all times charging the ultracapacitors,” Zupanc says. When the ultracapacitors are charged, the engine may be turned off, and the machine turns into absolutely electrical. The engine will cycle again on when the ultracapacitor costs get low. “They cost in a short time, inside a few minutes,” he says. The draw back: the capacitors haven’t got the capability of a lithium-ion battery; runtime is round 20 minutes, relying in your pace.

“We had by no means used them earlier than, and we wished to see how they labored,” Zupanc says, explaining why Volvo was utilizing ultracapacitors on the CX01. “Whereas they do not have the capability of lithium-ion batteries, they’re good for vibration they usually have an extended lifecycle. They will not be the best resolution as a result of they do not have that longevity, and who is aware of, we might couple them with a lithium-ion battery pack down the highway.”

As a result of the ultracapacitors want a relentless cost, it is unlikely that the diesel engine will go away so long as they’re used. 

Volvo can also be exploring utilizing a low-friction water-reduction polymer-based coating on the drum floor now theoretical — which may be used on its different compactors. This could fight the frequent drawback of asphalt sticking to the drum, now solved by utilizing water. The CX01, nevertheless, has restricted water storage.

Volvo produced =the next explainer video of the way it envisions the CX01 getting used: