Featured Research

from universities, journals, and other organizations

Electric vehicle: Light yet safe contender for city streets

Date:
January 30, 2013
Source:
Technische Universitaet Muenchen
Summary:
Can an electric vehicle be extremely light and safe at the same time? Researchers aim to show that the answer is yes. Engineers have chosen a sturdy monocoque body, state-of-the-art carbon fiber materials and a lightweight engine and transmission system.

First a whirring sound, then the crunch of tires on the road. Things are pretty quiet when the Visio.M engineers take their prototype e-car for a spin.
Credit: Credit: A. Heddergott / S. Rauchbart / TUM

Can an electric vehicle be extremely light and safe at the same time? Researchers working on the Visio.M project aim to show that the answer is yes. Scientists as well engineers from Germany's leading technology companies have teamed up to develop a Visionary Mobility concept car to meet tomorrow's electromobility needs. They have chosen a sturdy monocoque body, state-of-the-art carbon fiber materials and a lightweight engine and transmission system. A Visio.M research prototype has already successfully negotiated drive and chassis tests.

Related Articles


Up to now, it has been a case of "either/or." On the one hand, we have the typical ultra-compact, lightweight electric car, where designers have had to compromise on safety. With larger e-cars on the other hand, the heavier frames and crumple zones come at the expense of battery range. But now researchers as well as engineers from some of Germany's top technology firms are looking to create the best of both worlds. The aim of the Visio.M project is to develop a mobility concept for an efficient electric vehicle, making the design as light as possible while still delivering the best possible safety protection.

The Visio.M engineers decided in favor of an innovative monocoque body structure. Typically used in racing cars, a monocoque chassis combined with lightweight materials enables good stability while keeping overall weight to a minimum.

Innovative materials

The developers are also breaking new ground in their choice of ultra-lightweight materials for the structure: The passenger compartment will be made of carbon-fiber-reinforced plastic. Composite materials of this type are already used in the manufacture of aircraft and luxury sports cars. The downside is that they are extremely complex to produce and expensive as a result. So the Visio.M engineers intend to investigate the feasibility of carbon fiber materials in ultra-compact cars suitable for series production.

For the drive system, too, the Visio.M developers are looking to keep weight to an absolute minimum. The e-car they are designing will have an efficient and compact asynchronous electric engine. The transmission system will incorporate very light gears resting on hollow shafts. This would make the gears up to 15 percent lighter than conventional designs.

Safety first

The lightweight design innovations may be impressive, but driver and passenger safety is still the number one priority of the Visio.M project. The sturdy carbon fiber structure will incorporate various dedicated active and passive features addressing the specific safety challenges of an ultra-compact electric car. The ideas being investigated include specially adapted seatbelts as well as other innovative concepts to minimize potential injuries in the event of an accident. By the end of the project, the researchers hope that they will have achieved the maximum possible level of safety.

A research prototype vehicle has already passed some initial chassis tests. The Electronic Stability Program, i.e., the anti-lock braking system and the torque vectoring system, have been put through their paces at a test site near Munich -- marking another successful step in the move to develop a safe electric vehicle.


Story Source:

The above story is based on materials provided by Technische Universitaet Muenchen. Note: Materials may be edited for content and length.


Cite This Page:

Technische Universitaet Muenchen. "Electric vehicle: Light yet safe contender for city streets." ScienceDaily. ScienceDaily, 30 January 2013. <www.sciencedaily.com/releases/2013/01/130130111924.htm>.
Technische Universitaet Muenchen. (2013, January 30). Electric vehicle: Light yet safe contender for city streets. ScienceDaily. Retrieved December 21, 2014 from www.sciencedaily.com/releases/2013/01/130130111924.htm
Technische Universitaet Muenchen. "Electric vehicle: Light yet safe contender for city streets." ScienceDaily. www.sciencedaily.com/releases/2013/01/130130111924.htm (accessed December 21, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Sunday, December 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Touch-Free Smart Phone Empowers Mobility-Impaired

Touch-Free Smart Phone Empowers Mobility-Impaired

Reuters - Innovations Video Online (Dec. 21, 2014) A touch-free phone developed in Israel enables the mobility-impaired to operate smart phones with just a movement of the head. Suzannah Butcher reports. Video provided by Reuters
Powered by NewsLook.com
Building Google Into Cars

Building Google Into Cars

Reuters - Business Video Online (Dec. 19, 2014) Google's next Android version could become the standard that'll power your vehicle's entertainment and navigation features, Reuters has learned. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
AP Review: Nikon D750 and GoPro Hero 4

AP Review: Nikon D750 and GoPro Hero 4

AP (Dec. 19, 2014) What to buy an experienced photographer or video shooter? There is some strong gear on the market from Nikon and GoPro. The AP's Ron Harris takes a closer look. (Dec. 19) Video provided by AP
Powered by NewsLook.com
Obama: Better Ways to Create Jobs Than Keystone Pipeline

Obama: Better Ways to Create Jobs Than Keystone Pipeline

AFP (Dec. 19, 2014) US President Barack Obama says that construction of the Keystone pipeline would have 'very little impact' on US gas prices and believes there are 'more direct ways' to create construction jobs. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins