Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Interactive simulator for vehicle drivers

07.03.2014

Maximize mileage, safety, or operating life? Driving behavior behind the wheel has a big influence on the vehicle. Fraunhofer researchers have developed a driving simulator designed to make the „human factor“ more calculable for vehicle engineers.

Simulations are an important development tool in the automobile and utility vehicle industries – they enable engineers to see into the future. The properties of vehicle components, such as how they respond in an accident, their reliability, or their energy efficiency can be investigated using simulations before the first component is manufactured.


Almost like real life: the vehicle simulator at Fraunhofer ITWM has 18 projectors that throw their images up on a huge dome. The vehicle interior can simulate nearly every driving situation.

© Fraunhofer ITWM

To continue to maintain the prediction power of the results, however, all of the influences that the vehicle is exposed to later on in actual operation must be taken into account – including those of drivers and operators.

Researchers at the Fraunhofer Institute for Industrial Mathematics ITWM in Kaiserslautern, Germany, have developed an interactive driving simulator using RODOS (robot-based driving and operation simulator) with which realistic interaction between human and vehicle can be analyzed. “Driving behavior is a key factor that is often insufficiently accounted for in computational models,” according to Dr. Klaus Dreßler of ITWM.

No doubt there are algorithms that are supposed to represent the “human factor” in simulations – however, these do not properly reflect the complexity of human behavior. For this reason, researchers at ITWM have shifted to a hybrid design for simulation. Hybrid here means a real person interacts with a simulation environment – a well-known example of this is a flight simulator, in which pilots regularly practice extreme situations.

In the automotive and utility-vehicle sector, only a few manufacturers have had this kind of facility at their disposal, as its development involves a lot of effort and expense.

An enormous industrial robot manipulator simulates braking maneuvers

The simulation facility’s structure at ITWM consists of a real vehicle interior where the test driver can operate the steering wheel, accelerator, and brakes as usual. The vehicle interior is integrated into a 6-axis robotic system that looks like a gigantic gripper arm and can simulate acceleration, braking, or tight curves by leaning and rotating. “We have much greater room to maneuver than with the kinematic systems usually employed today. At the same time, the space requirements are comparatively quite low,” according to project manager Michael Kleer.

For test drivers to behave authentically, they must have the feeling they are actually situated in a moving vehicle. If movements of the simulator do not match the visual impressions, this not only influences driver reactions, it can also lead to symptoms like kinetosis. Simulator sickness is triggered by contradictory sensory perceptions, the same way motion sickness or sea sickness is.

“To prevent these unpleasant side effects, we have developed our motion cueing algorithms that generate the control signals for the robot in close cooperation with researchers in cognition,” explains Dreßler. On the basis of this interdisciplinary knowledge, the motions of the simulator can be matched to visual input so they are perceived as very natural by the test drivers. At the same time, an enormous projection dome provides the external impression of real driving. 18 projectors provide a realistic 300 degree view of the situation for the driver. “You can imagine it as resembling an IMAX theater,” according to Dreßler.

Driving simulations that also take into account the human effects on a vehicle may become more important in future. The increasing number of driver assistance systems will themselves make the human-machine interface in automobiles increasingly important. The demands placed on simulations will thus become increasingly more specific. “That is where we have an additional advantage with our approach: all the algorithms are proprietary in-house developments – so we therefore can match the individual algorithm parameters to project-specific problems,” says Kleer.

The simulation facility at ITWM has been in operation since July 2013 – and two projects in collaboration with the Volvo Construction Equipment company are presently underway. From April 7 to 11 the technology will be shown at the Hannover Messe trade fair (Hall 7, Booth B10).

Dr. Klaus Dreßler | Fraunhofer-Institut

Further reports about: Driving ITWM Interactive braking feeling robot-based driving sickness symptoms

More articles from Trade Fair News:

nachricht We will find “the fly in the ointment” and show it to you
20.05.2015 | Fraunhofer-Institut für Organische Elektronik, Elektronenstrahl- und Plasmatechnik FEP

nachricht JULABO – the 'World of Temperature' with many novelties
20.05.2015 | JULABO GmbH

All articles from Trade Fair News >>>

The most recent press releases about innovation >>>

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

Im Focus: Solid-state photonics goes extreme ultraviolet

Using ultrashort laser pulses, scientists in Max Planck Institute of Quantum Optics have demonstrated the emission of extreme ultraviolet radiation from thin dielectric films and have investigated the underlying mechanisms.

In 1961, only shortly after the invention of the first laser, scientists exposed silicon dioxide crystals (also known as quartz) to an intense ruby laser to...

Im Focus: Advance in regenerative medicine

The only professorship in Germany to date, one master's programme, one laboratory with worldwide unique equipment and the corresponding research results: The University of Würzburg is leading in the field of biofabrication.

Paul Dalton is presently the only professor of biofabrication in Germany. About a year ago, the Australian researcher relocated to the Würzburg department for...

Im Focus: Basel Physicists Develop Efficient Method of Signal Transmission from Nanocomponents

Physicists have developed an innovative method that could enable the efficient use of nanocomponents in electronic circuits. To achieve this, they have developed a layout in which a nanocomponent is connected to two electrical conductors, which uncouple the electrical signal in a highly efficient manner. The scientists at the Department of Physics and the Swiss Nanoscience Institute at the University of Basel have published their results in the scientific journal “Nature Communications” together with their colleagues from ETH Zurich.

Electronic components are becoming smaller and smaller. Components measuring just a few nanometers – the size of around ten atoms – are already being produced...

Im Focus: IoT-based Advanced Automobile Parking Navigation System

Development and implementation of an advanced automobile parking navigation platform for parking services

To fulfill the requirements of the industry, PolyU researchers developed the Advanced Automobile Parking Navigation Platform, which includes smart devices,...

Im Focus: First electrical car ferry in the world in operation in Norway now

  • Siemens delivers electric propulsion system and charging stations with lithium-ion batteries charged from hydro power
  • Ferry only uses 150 kilowatt hours (kWh) per route and reduces cost of fuel by 60 percent
  • Milestone on the road to operating emission-free ferries

The world's first electrical car and passenger ferry powered by batteries has entered service in Norway. The ferry only uses 150 kWh per route, which...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International symposium: trends in spatial analysis and modelling for a more sustainable land use

20.05.2015 | Event News

15th conference of the International Association of Colloid and Interface Scientists

18.05.2015 | Event News

EHFG 2015: Securing health in Europe. Balancing priorities, sharing responsibilities

12.05.2015 | Event News

 
Latest News

Siemens will provide the first H-class power plant technology in Mexico

28.05.2015 | Press release

Merging galaxies break radio silence

28.05.2015 | Physics and Astronomy

A New Kind of Wood Chip: Collaboration Could Yield Biodegradable Computer Chips

28.05.2015 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>