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How Volvo’s pedestrian air bag works

By FaezClutchless on 01 Jun 2012

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Volvo has always been in the forefront of safety engineering in the automotive industry. The company has invented or incorporated many vehicle safety features that we see in many cars today. Features such as laminated windscreen, 3-point safety belts, front and rear crumple zones and safety door locks were introduced in Volvo’s vehicles well before many other automakers started using them.

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Another new safety feature from Volvo that was recently announced is the pedestrian air bag. The Pedestrian Air Bag is part of the company’s three car safety technologies and the other two is City Safety and Pedestrian Detection.

Part of the three car safety technologies goal is that by the year 2020, nobody shall be seriously injured or killed in a new Volvo. The Pedestrian Air Bag will come as a standard in the upcoming Volvo V40 sports wagon. Let us see how it works.

The pedestrian airbag system is active when the Volvo V40 is moving roughly between 20 to 50 km/h. Volvo indicates that most vehicle-pedestrian collisions happen when the car is moving up to 40 km/h. When an accident does happen, the system deploys fast, as in hundredths of a second.

Sensors throughout the front of the Volvo vehicle will transmit any impact to the pedestrian airbag system’s control unit, which will determine if it’s a pedestrian, for example, a human leg or not.

If it is indeed a human leg, the rear of the hood is blown open while, simultaneously, an airbag rapidly inflates to cover the Volvo vehicle’s lower windshield and the framing A-pillar.

The now-raised hood provides a crumple zone which is to cushion the struck pedestrian from the vehicle’s underlying hard chassis and engine. According to Volvo, these three areas can cause the most serious head injuries in vehicle-pedestrian collisions.

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FaezClutchless
Written by FaezClutchless
Some say that his blood is actually RON98 petrol and some say that his right foot weighs over 20kg. But all that we know about Faez is that he loves to drive and is a JDM enthusiast.



 
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