Featured Research

from universities, journals, and other organizations

Intelligent Side-impact Protection System Dramatically Reduces Risk Of Injury In Car Crashes

Date:
March 14, 2008
Source:
Fraunhofer-Gesellschaft
Summary:
A car body that thinks intelligently and protects its occupants at the crucial moment has been every driver's dream for a long time. Research scientists have developed an intelligent side-impact protection system that dramatically reduces the risk of injury. Just recently the system has proved it actually works in a real crash situation.

A car body that thinks intelligently and protects its occupants at the crucial moment has been every driver's dream for a long time.
Credit: Image courtesy of Fraunhofer-Gesellschaft

A car body that thinks intelligently and protects its occupants at the crucial moment has been every driver’s dream for a long time. Research scientists in an EU project have developed an intelligent side-impact protection system that dramatically reduces the risk of injury.

One more second until collision. The cameras integrated in the doors have long identified the car that will cause the accident. Radar sensors in the car wings measure how far away the other car still is. 200 milliseconds before the crash, the new side-impact protection system is activated. The occupants are reliably protected at the crucial moment.

The intelligent side-impact protection system is a product of the EU project APROSYS – short for Advanced Protection Systems. The technology was developed by Fraunhofer researchers in cooperation with various universities, car manufacturers and suppliers. “Our goal was to improve the active crash safety of motor vehicles – that is, to adapt the technical properties of the car body in such a way that it absorbs energy at the crucial moment and thus protects the occupants,” says project manager Björn Seipel of the Fraunhofer Institute for Structural Durability and System Reliability LBF.

But how do you get the car body to change its properties? And how does the car know when its occupants need protection? The researchers have devised a kind of sixth sense for cars that anticipates accidents and emits the necessary impulse to activate the side-impact protection system. Stereo cameras and radar sensors continually scan the environment, and a central computer analyzes the data.

“During the journey, the system has to distinguish moving objects – meaning other cars that could potentially cause an accident – from stationary objects such as houses or trees,” explains Dr. Dieter Willersinn of the Fraunhofer Institute for Information and Data Processing IITB. His team has developed a software program capable of predicting a lateral collision just in time – about 200 milliseconds before the crash. The impulse from the central computer releases a surge of electricity that heats a wire made of a shape memory alloy. This wire is the actual trigger.

“We opted for this solution because it is faster than any conventional solenoid switch,” says Seipel. The heat bends the wire, which then releases a spring. The spring slackens and pushes a steel bolt, which is integrated in the seat, towards the door. At the same time a stable metal body in the door is brought into position to support the steel bolt. “The system of the bolt and the metal box stabilizes the car door and absorbs energy on collision,” explains Seipel.

To prove that the new side-impact protection system actually works in a real crash situation, he will carry out a crash test in Spain on March 7. The passenger cell will be on display at the Hannover trade fair (hall 2, stand D28) on April 21 through 25.

 


Story Source:

The above story is based on materials provided by Fraunhofer-Gesellschaft. Note: Materials may be edited for content and length.


Cite This Page:

Fraunhofer-Gesellschaft. "Intelligent Side-impact Protection System Dramatically Reduces Risk Of Injury In Car Crashes." ScienceDaily. ScienceDaily, 14 March 2008. <www.sciencedaily.com/releases/2008/03/080311102322.htm>.
Fraunhofer-Gesellschaft. (2008, March 14). Intelligent Side-impact Protection System Dramatically Reduces Risk Of Injury In Car Crashes. ScienceDaily. Retrieved April 20, 2014 from www.sciencedaily.com/releases/2008/03/080311102322.htm
Fraunhofer-Gesellschaft. "Intelligent Side-impact Protection System Dramatically Reduces Risk Of Injury In Car Crashes." ScienceDaily. www.sciencedaily.com/releases/2008/03/080311102322.htm (accessed April 20, 2014).

Share This



More Matter & Energy News

Sunday, April 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Small Reactors Could Be Future of Nuclear Energy

Small Reactors Could Be Future of Nuclear Energy

AP (Apr. 17, 2014) — After the Fukushima nuclear disaster, the industry fell under intense scrutiny. Now, small underground nuclear power plants are being considered as the possible future of the nuclear energy. (April 17) Video provided by AP
Powered by NewsLook.com
Horseless Carriage Introduced at NY Auto Show

Horseless Carriage Introduced at NY Auto Show

AP (Apr. 17, 2014) — An electric car that proponents hope will replace horse-drawn carriages in New York City has also been revealed at the auto show. (Apr. 17) Video provided by AP
Powered by NewsLook.com
Honda's New ASIMO Robot, More Human-Like Than Ever

Honda's New ASIMO Robot, More Human-Like Than Ever

AFP (Apr. 17, 2014) — It walks and runs, even up and down stairs. It can open a bottle and serve a drink, and politely tries to shake hands with a stranger. Meet the latest ASIMO, Honda's humanoid robot. Duration: 00:54 Video provided by AFP
Powered by NewsLook.com
German Researchers Crack Samsung's Fingerprint Scanner

German Researchers Crack Samsung's Fingerprint Scanner

Newsy (Apr. 16, 2014) — German researchers have used a fake fingerprint made from glue to bypass the fingerprint security system on Samsung's new Galaxy S5 smartphone. Video provided by Newsy
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:
from the past week

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