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

  • Traffic management turns to machine vision
    June 1, 2016
    Traffic engineers can use the latest advances in vision technology to streamline and enhance traffic management. The idea of using one camera to perform all functions at an intersection is attractive to authorities for many reasons and camera supplier Gridsmart says it can make this happen. Its Bell Camera offers a horizon to horizon view that includes the centre of the intersection where vehicles, bicycles and pedestrians cross paths and it can be used for traffic light actuation, traffic data collection a
    Read More
  • Audi Urban Intelligent Assist research programme launched
    May 21, 2012
    A new research initiative launched by Audi, its electronics research laboratory in Silicon Valley and four top US universities aims to develop technologies focused on easing the congestion, dangers and inconveniences that often confront drivers in the world's biggest cities. The new three-year Audi Urban Intelligent Assist research initiative aims to take connected car, driver assistance and infrastructure electronics to the next level of providing detailed information so motorists have a better sense of th
    Read More
  • Connected offers free I2V connectivity
    November 1, 2016
    A new system could reduce the cost of implementing I2V communications across a city to less than that for a single intersection, as Colin Sowman hears. It may seem too good to be true but US company Connected Signals is offering city authorities the equipment to provide infrastructure to vehicle (I2V) communications for free. The system enables drivers to receive information about the timing of signals they are approaching via the EnLighten smartphone app (or connected in-vehicle display).
    Read More
  • IBTTA applauds Administration’s proposal to lift ban on interstate tolling
    May 1, 2014
    The International Bridge, Tunnel and Turnpike Association (IBTTA) has applauded the Obama Administration for including language in its surface transportation reauthorisation proposal, the Grow America Act, released earlier today that would ‘eliminate the prohibition on tolling existing free Interstate highways.’
    Read More

Highlighted Content