Even the construction industry can “go green.” A collection of Swiss companies is proving this to be true by developing the world’s largest electric vehicle and in record time. The E-Dumper weighs a whopping 45 tons and has 700 kWh of storage capacity. That’s as much as eight Tesla Model S vehicles. To ensure it is as environmentally-friendly as possible, the E-Dumper’s base is a used Komatsu HD 605-7 dumper truck. The original diesel engine has been removed and replaced with a chassis for battery packs that will power the new E-Dumper.
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When we say this vehicle is big, we mean big. Its tires measure over 6.5 feet in diameter, and the driver is required to climb nine stairs to reach the cabin. Its size and strength ensure it can transport materials from a mountain ridge to a valley 20 times per day. This is important, as moving materials from the slopes of the Chasseral to the Ciments Vigier SA cements works near Biel is what the e-dump truck will be doing for the next 10 years.
Because the vehicle is electric, there is no need to “heat up” the brakes when descending. This is because the enormous electric engine acts as a generator and recharges the battery pack. That same energy is then used to help the vehicle travel back up the hill. Phys reports, “If all goes as planned, the electric dumper truck will even harvest more electricity while traveling downhill than it needs for the ascent. Instead of consuming fossil fuels, it would then feed surplus electricity into the grid.”
The costly venture is being spearheaded by Ciments Vigier SA. Lithium Storage GmbH from Illnau and the Kuhn Group have been hired to “get the ball rolling,” so to speak. The project is also backed by Empa; battery expert Marcel Held is in charge of safety assessments.
Related: Chinese company LeEco begins building $3 billion electric car factory
The E-Dumper’s battery pack will weigh an incredible 4.5 tons and consist of 1,440 nickel manganese cobalt cells. This is the first time ever a land vehicle has been equipped with such a vast battery pack. “Nickel manganese cobalt cells are also the choice of the German automobile industry when it comes to the next generation of electric cars,” Held said. This is also the first time a vehicle of this performance class has been constructed to ascend and descend slopes of up to 13 percent inclination, all the while charging its battery pack by 40 kWh during a single descent and using electrical currents up to 3,000 amperes while climbing steep terrain.
If the E-Dump Truck proves successful, Ciments Vigier SA could potentially power up to eight purely-electric vehicles using long-term. Once this has been accomplished, other companies may start producing large-scale, electric construction vehicles as well.
Via Phys.org
Images via Lithium Storage GmbH, SAE International
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On – 15 Sep, 2017 By Amanda Froelich
