Airbags Get Smart

And they're getting smarter.

Posted 03.20.2003 at 1:09 pm 0 Comments

Illustration by Garry Marshall A ceiling-mounted sensor "sees" who's in the car and inflates airbags to the appropriate size. Illustration by Garry Marshall

This fall, more than a third of new cars must, by federal mandate, be able to sense the difference between an adult occupant, a child and an empty seat. Airbags would then only inflate as much as needed. Weight and tension sensors under seats and in seatbelts are the first step, but Siemens, TRW and Motorola are developing lasers, 3-D cameras and electrical fields that can determine occupants' position as well as their size. "The existing technology can determine if someone's in a seat," notes TRW engineer Roger McCurdy, "but the real value will be when airbags determine when someone is out of position -- that's the root cause of injuries."

Previous Article: 1 Jet Engine & 18,000 Pounds of Fuel

Next Article: Audi Builds a Better iDrive

Want to keep track of the latest concept cars, automotive innovations, and more? Subscribe to Popular Science today, for less than $1 per issue!