Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Hybrid excavator uses diesel-electric drive


Hybrid drives also promise benefits in utility vehicles and construction machinery. Such devices are still, however, very much the exception in the market.

The new BINE Projektinfo brochure “Hybrid building machinery” (11/2015) presents a material handler with a diesel-electric drive. In order to supply the electric motor with electricity, part of the kinetic energy is converted via a generator into electricity and then stored in supercapacitors.

The BINE Projektinfo brochure “Hybrid building machinery” (11/2015)

© BINE Informationsdienst

These and further optimisation measures enable the excavator to consume up to 40% less diesel while providing additional power reserves for special loads.

With the power of two motors

The rotary movements of the material handler’s upper superstructure, the house, are achieved via the electric motor’s drive and the energy released during braking is converted back into electricity. A generator flange-mounted to the 160-kW diesel engine charges the supercapacitors – the supercap pack.

The generator reverses its function as required, operating as a motor and supporting the diesel drive during peak loads. The supercap pack enables the two-way feeding and generation of electricity.

In contrast to lithium-ion batteries, which are used in cars, supercaps have the advantage that they have an extremely large number of cycles and a high charge and discharge efficiency.

With the test material handler, the interaction of the diesel engine, motor generator, energy storage system and the hybrid drive in the house was successful.

Another aspect of the research project was to optimise the auxiliary units. Demand-based configuration of the fans, pumps and alternator, as well as an adapted control system, enables up to 9% of the energy to be saved compared with standard units. The hybrid excavator is being developed as a joint project by Deutz AG, Robert-Bosch GmbH and Terex Deutschland GmbH.

The BINE-Projektinfo brochure “Hybrid building machinery” (11/2015) follow this link:

Uwe Milles/Birgit Schneider

About BINE Information Service

Energy research for practical applications

The BINE Information Service reports on energy research topics, such as new materials, systems and components, as well as innovative concepts and methods. The knowledge gained is incorporated into the implementation of new technologies in practice, because first-rate information provides a basis for pioneering decisions, whether in the planning of energy-optimised buildings, increasing the efficiency of industrial processes, or integrating renewable energy sources into existing systems.

About FIZ Karlsruhe

FIZ Karlsruhe – Leibniz Institute for Information Infrastructure is a not-for-profit organization with the public mission to make sci-tech information from all over the world publicly available and to provide related services in order to support the national and international transfer of knowledge and the promotion of innovation.
Our business areas:
• STN International – the world’s leading online service for research and patent information in science and technology
• KnowEsis – innovative eScience solutions to support the process of research in all its stages, and throughout all scientific disciplines
• Databases and Information Services – Databases and science portals in mathematics, computer science, crystallography, chemistry, and energy technology
FIZ Karlsruhe is a member of the Leibniz Association (WGL) which consists of 87 German research and infrastructure institutions.

Weitere Informationen: - BINE Informationsdienst

Rüdiger Mack | FIZ Karlsruhe – Leibniz-Institut für Informationsinfrastruktur GmbH

More articles from Power and Electrical Engineering:

nachricht Prototype device for measuring graphene-based electromagnetic radiation created
28.10.2016 | Lomonosov Moscow State University

nachricht Steering a fusion plasma toward stability
28.10.2016 | American Physical Society

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

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

Im Focus: Novel light sources made of 2D materials

Physicists from the University of Würzburg have designed a light source that emits photon pairs. Two-photon sources are particularly well suited for tap-proof data encryption. The experiment's key ingredients: a semiconductor crystal and some sticky tape.

So-called monolayers are at the heart of the research activities. These "super materials" (as the prestigious science magazine "Nature" puts it) have been...

Im Focus: Etching Microstructures with Lasers

Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.

This new method was born of a surprising phenomenon: irradiating glass in a particular way with an ultrafast laser has the effect of making the glass up to a...

Im Focus: Light-driven atomic rotations excite magnetic waves

Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion

Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

Prototype device for measuring graphene-based electromagnetic radiation created

28.10.2016 | Power and Electrical Engineering

Gamma ray camera offers new view on ultra-high energy electrons in plasma

28.10.2016 | Physics and Astronomy

When fat cells change their colour

28.10.2016 | Life Sciences

More VideoLinks >>>