Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Start of work for the world's largest electric truck

20.04.2018

The eDumper dump truck is the largest electric vehicle in the world and will be in operation in the quarry from 20 April. In cooperation with industry partners, the Bern University of Applied Sciences BFH, the NTB Interstaatliche Hochschule für Technik Buchs and Empa have developed the environmentally friendly truck.

The world's largest electric vehicle with an empty weight of 58 tons and a payload of 65 tons has been christened "Lynx" on April 20 in the presence of numerous representatives from business and politics and will start its work next week in the quarry of Vigier Ciment. The electric dump truck designed over the past 18 months is an example of successful applied research in Switzerland.


The eDumper at work in the quarry.

Lithium Storage GmbH

This interdisciplinary cooperation has set three world records. The eDumper is the largest and most powerful battery-powered electric wheeled vehicle in the world. For this purpose, the largest battery ever produced for an electric vehicle was installed, which weighs 4.5 tons and is as heavy as two complete passenger cars.

Never before has a comparable vehicle been able to save such a large amount of CO2. The eDumper will transport more than 300,000 tonnes of rock per year over the next 10 years. According to preliminary calculations, the vehicle will save up to 1,300 tonnes of CO2 and 500,000 litres of diesel over the next 10 years.

Brakes are for winners!

The eDumper will transport lime and marl rocks from a higher mining area to a lower processing plant. During the fully loaded descent, the batteries are charged by recuperation of braking energy. According to preliminary calculations, the electricity generated in this way is largely sufficient for the unloaded return journey uphill to the mining area. Thus, the vehicle would be be a zero-energy vehicle. The exact energy balance of the eDumper will be shown by investigations in everyday operation over the next few months.

From diesel engine to electric drive

The environmentally friendly eDumper was completely rebuilt on the basis of a diesel-powered Komatsu HD 605-7 dump truck. In order to optimally dimension the electric drive, researchers at the Bern University of Applied Sciences at the Institute for Energy and Mobility Research IEM equipped the conventional model with a variety of sensors so that numerous measurement data could be obtained.

Among other things, the necessary torque at the cardan shaft and the power output of the engine are measured together with the respective driving condition and the GPS data of the vehicle.

The BFH Energy Storage Research Centre then dealt with the evaluation of suitable battery cells and the cooling of a battery module. The suitable Li-ion cells were selected and one of the battery modules assembled with the selected battery cells was tested in a special test facility housed in a ship container.
In order to guarantee the longevity and robustness of the technology, the Interstate University of Applied Sciences Buchs investigated the vibrations of the diesel dump truck in real use and the heat emission of the battery cells of the future eDumper.

This research team also designed the thermal management for the battery pack, calculated the necessary strength of the battery holders and the design of the welding seams. It is also responsible for monitoring the eDumper battery in real use.

To ensure the fire safety of such a large battery cell, the Swiss Federal Laboratories for Materials Science and Technology Empa examined the behavior of the Li-Ion cells used in the event of a short circuit or mechanical damage. Never before has a land vehicle been equipped with such a huge battery pack. The eDumper is now designed in such a way that a failing cell cannot affect neighbouring cells.

Industrial partners from Switzerland

Not only the design of the eDumper was done in Switzerland, also the components were partly from Swiss medium-sized companies: the actual conversion took place at Kuhn Schweiz AG in Lommis (TG) and Heimberg (BE). The synchronous drive motor (Oswald Motoren GmbH), gearbox (Puls Getriebe GmbH), batteries (Lithium Storage GmbH) and inverters (Aradex AG) are all custom-made products based on the latest generation of industrial products. They were installed in the empty chassis of the KOMATSU HD 605-7 in September/October 2017.

The hydraulic pumps for the multi-disc brake system, tilting drive, servo support and preload of the secondary brake system are driven by another 200 kW electric motor from the Berner Oberland (Brienzer Motoren AG). The 600kWh power storage, consisting of 4 blocks, is located in the engine compartment and instead of the diesel tank. The project is supported by the Swiss Federal Office of Energy (SFOE).

Weitere Informationen:

https://www.empa.ch/web/s604/Einweihung_eDumper (from 20.4. 16 h)
Bilder-Download: http://plus.empa.ch/images/2018-04-20-Einweihung_eDumper

Rainer Klose | Empa - Eidgenössische Materialprüfungs- und Forschungsanstalt

More articles from Interdisciplinary Research:

nachricht Investigating cell membranes: researchers develop a substance mimicking a vital membrane component
25.05.2018 | Westfälische Wilhelms-Universität Münster

nachricht New approach: Researchers succeed in directly labelling and detecting an important RNA modification
30.04.2018 | Westfälische Wilhelms-Universität Münster

All articles from Interdisciplinary Research >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Powerful IT security for the car of the future – research alliance develops new approaches

The more electronics steer, accelerate and brake cars, the more important it is to protect them against cyber-attacks. That is why 15 partners from industry and academia will work together over the next three years on new approaches to IT security in self-driving cars. The joint project goes by the name Security For Connected, Autonomous Cars (SecForCARs) and has funding of €7.2 million from the German Federal Ministry of Education and Research. Infineon is leading the project.

Vehicles already offer diverse communication interfaces and more and more automated functions, such as distance and lane-keeping assist systems. At the same...

Im Focus: Molecular switch will facilitate the development of pioneering electro-optical devices

A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.

The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

In focus: Climate adapted plants

25.05.2018 | Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

 
Latest News

In focus: Climate adapted plants

25.05.2018 | Event News

Flow probes from the 3D printer

25.05.2018 | Machine Engineering

Less is more? Gene switch for healthy aging found

25.05.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>