Volvo Wins Another World Innovation Safety Award
Volvo Car Group’s pioneering work on pedestrian protection has been rewarded with the 2013 Global NCAP Innovation Award. Prof. Lotta Jakobsson from Volvo declared: “The purpose of the world’s first airbag for pedestrians is to help protect these vulnerable road users in certain situations when they impact the bonnet and the area around the windscreen, where there may be a risk of serious head injuries”.
In China, 25 per cent of traffic fatalities are pedestrians. In Europe, the figure is 14 per cent and in the USA 12 per cent. Far larger numbers of pedestrians are injured. The most serious head injuries involving pedestrians and cars are caused by the hard structure under the bonnet panel, the windscreen’s lower edge and the A-pillars.
In 2010, Volvo Cars counteracted the statistics by launching Pedestrian Detection with full auto brake. The system can avoid a collision with a pedestrian at speeds of up to 35 km/h if the driver does not respond in time. At higher speeds, the focus is on reducing the car’s speed as much as possible before the collision. In order to mitigate the consequences if a collision with a pedestrian is unavoidable, the Volvo V40, launched in 2012, comes equipped with the world’s first Pedestrian Airbag Technology. Seven sensors embedded in the front of the car transmit signals to a control unit. When the car comes into contact with an object, the control unit evaluates the signals and if it registers a human-like leg form, the pedestrian airbag is deployed.
The bonnet hinges are equipped with pyrotechnical release mechanisms which, when the system is activated, pull out a pin and release the rear of the bonnet. At the same time, the airbag is inflated. During the inflation sequence, the airbag raises the bonnet. It is lifted ten centimetres and stays in the raised position. The added gap between the bonnet and the hard components in the engine compartment gives space for the bonnet to deform, absorbing energy and dampening the impact of the pedestrian’s head and chest.
“The airbag has a dual function. It raises the bonnet to create distance. Then it helps to cushion the impact by covering the hard parts around the windscreen,” explains Lotta Jakobsson.
In 2012, the all-new Volvo V40 achieved a five-star Euro NCAP rating and also won the Euro NCAP Best in Class in the Small Family class – with the best overall result ever recorded by the organisation. The V40 scored an all-time high in the pedestrian evaluation by attaining 88 per cent of the total score.
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