TRW pedestrian protection system

TRW Automotive Holdings has developed an advanced pedestrian protection system that uses up to three remote acceleration sensors (RAS) located in the front bumper area.
January 26, 2012 Read time: 2 mins
RSS601 TRW Automotive Holdings has developed an advanced pedestrian protection system that uses up to three remote acceleration sensors (RAS) located in the front bumper area. These sensors continuously transmit acceleration signals to an electronic control unit (ECU) which analyses the sensor data. In the event of a collision, the system will determine if the vehicle has struck a human body (of various sizes) or another object. If a pedestrian collision is detected, the system triggers hood lifter mechanisms – located on either underside of the hood – to activate and create more space between the hood and the hard engine components to help reduce potential injury.

"Our goal is a reliable system based on proven technology for the hardware, software and control algorithms," said Martin Thoone, vice president, TRW global electronics engineering. "In the pedestrian protection system, the RAS can be mated to a stand-alone ECU, but the more cost effective solution is to have the software integrated into an existing TRW airbag control unit."

TRW says the preferred integrated option also offers better interactions between the frontal impact sensing and pedestrian impact sensing algorithms; resulting in enhanced overall sensing performance. System advantages also include: sensor packaging flexibility across a wide range of vehicle applications; an electronic communication interface that works within established industry protocols, helping ensure high compatibility and reliability; and the use of TRW's proprietary X-RISA_8 pedestrian impact sensing algorithm.
Urban Traffic Control

For more information on companies in this article

Related Content

  • Autonomous vehicles will not prevent half of real-world crashes
    April 5, 2017
    Alan Thomas of CAVT looks at the reality behind the safety claims fuelling the drive towards autonomous vehicles
    Read More
  • Bespoke ITS is helping to reduced collisions on America’s rural roads
    October 22, 2014
    David Crawford cherrypicks conference and award highlights Almost 30% of all US citizens live in rural areas or very small communities, and 34 of the 50 states exceed this level in their own populations, with the proportions rising as high as 85%. And although rural routes carry only 35% of all traffic, the accidents that occur on them account for some 54% of all US road traffic accident deaths.
    Read More
  • How ITS helped Coachella get its groove back
    November 15, 2024
    California’s Coachella Valley attracts visitors to myriad music and sports events. But now an ambitious traffic management initiative aims to cut travel times and reduce emissions. Adam Hill talks to the engineers involved in the massive CV Sync project
    Read More
  • Lufft’s MARWIS moves weather
    September 22, 2014
    A mobile road weather sensor is providing authorities with new options for monitoring road conditions and winter maintenance operations. Road and traffic engineers know the vulnerable points in their network – cold spots where ice forms first, high-banked roads where snow accumulates, fog pockets… Traditionally, most authorities will position weather stations at these points to detect and monitor road conditions during bad weather events.
    Read More

Highlighted Content