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Collision Sensor detects head-on collisions with pedestrians.

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February 25, 2013 - Designed to enable accurate Pop-up Hood operation, Pedestrian Collision Detection Sensor consists of 2 pressure sensors and hollow polyethylene housing that is installed across entire front bumper and conformed to bumper’s internal shape. In head-on vehicle/pedestrian collision, pressure sensors precisely detect increase in internal pressure of hollow housing as bumper deforms, regardless of collision position on front bumper.

(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press Release

DENSO Corp.
1-1 Showa-cho Kariya
Aichi, , 448-8661
Japan



DENSO Develops Pedestrian Collision Detection Sensor


Realizing more precise collision detection

KARIYA (Japan) -- DENSO Corporation has developed a pedestrian collision detection sensor for the Pop-up Hood*. The new sensor more precisely detects head-on collisions between vehicles and pedestrians, enabling the Pop-up Hood to operate more accurately.

“The new sensor technology uses a structure that can more accurately detect head-on collisions, regardless of where the collision takes place on the front bumper,” said Hiroyuki Wakabayashi, executive director responsible for DENSO's Information & Safety Systems Business Group.

In the conventional Pop-up Hood, several acceleration sensors are installed along the front bumper. However, detection by acceleration sensors varies depending on which part of the front bumper collides with a pedestrian.

DENSO’s new sensor consists of two pressure sensors and a hollow polyethylene housing that is installed across the entire front bumper and conformed to the bumper’s internal shape. In a head-on vehicle/pedestrian collision, these pressure sensors precisely detect the increase in internal pressure of the hollow housing as the bumper deforms, regardless of the collision position on the front bumper.

This sensor is installed on the Pop-up Hood of the Toyota Crown Hybrid launched in Japan.

DENSO strives to develop passive and active safety technologies that help protect vehicle occupants and pedestrians, as well as prevent traffic accidents. The company will continue working to realize a safe and reliable automotive society for everyone.

* Pop-up Hood
Pop-up Hood is designed to reduce pedestrian head injuries in a pedestrian/ vehicle engine hood collision by creating a larger buffer space between the hood and hard components, including the engine, under the hood. When a pedestrian collides with the front bumper of a vehicle within a predetermined speed range, the pedestrian collision detection sensor sends the information to the airbag electric control unit to make the hood pop up at the moment of the frontal collision.

DENSO Corporation, headquartered in Kariya, Aichi prefecture, Japan, is a leading global automotive supplier of advanced technology, systems and components in the areas of thermal, powertrain control, electronics and information and safety. Its customers include all the world's major carmakers. Worldwide, the company has more than 200 subsidiaries and affiliates in 35 countries and regions (including Japan) and employs approximately 120,000 people.

Consolidated global sales for the fiscal year ending March 31, 2012, totaled US$38.4 billion. Last fiscal year, DENSO spent 9.5 percent of its global consolidated sales on research and development. DENSO common stock is traded on the Tokyo and Nagoya stock exchanges. For more information, go to www.globaldenso.com, or visit our media website at www.densomediacenter.com
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