Empa and Kuhn built electric truck using Komatsu HD 605-7

A consortium of companies in Switzerland is building the world's largest electric vehicle protetype using the Komatsu HD 605-7 dumper truck platform. Vehicles are not for fashion in exhibitions, but for hard work in mining. The world's largest electric vehicle has a weight of 45 tons when empty and 65 tonnes during load capacity.

Tinuku Empa and Kuhn built electric truck using Komatsu HD 605-7

Dumper trucks consume between 50,000 to 100,000 liters of diesel per year and spit out 131 to 262 tons of CO2. It takes enormous amounts of energy to drive these 110 tons of monsters, but it can be done using an electric powertrain.

The researchers of Empa and the Kuhn Group developed a monster electric vehicle using a 700 kWh battery, weighing 4.5 tonnes and consisting of 1,440 nickel manganese cobalt cells, or the equivalent of eight Tesla Model S. Komatsu HD 605-7 diesel engines unloaded and chambers around the chassis for placement of battery packs.

The driver had to climb the nine steps to the top of a two-meter tire to transport material from the mountain and into the valley. The giant electric machine acts like a generator that recharges the battery when it goes down, then uses this energy to travel back up the mountain.

"Nickel manganese cobalt cells are also the choice of the German automotive industry when it comes to next generation electric cars, the important thing is to make sure the cells are not damaged by heat that leads to the risk of a chain reaction," said Empa battery expert Marcel Held.

The prototype will be tested using a 65 ton loading capacity to transport materials from a cement plant in Swiss Chasseral Mountain 20 times a day. Regenerative braking will charge 40 kWh of battery will give more than enough energy to return to the hill with the rest of the electricity to be put back into the grid.

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