Volvo Car Corporation's pedestrian airbag: here's how it works
Seven sensors, advanced technology and an airbag that deploys at lightning speed in the windscreen area. These are some of the main elements of Pedestrian Airbag Technology - the system that makes Volvo Car Corporation with its all-new V40 the first manufacturer with a pedestrian airbag.
In China 25 percent of traffic fatalities are pedestrians. In Europe the figure is 14 percent and in the USA 12 percent. 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.
These were some of the considerations when Volvo Car Corporation started development of its Pedestrian Airbag Technology. The system was a world breakthrough when the all-new Volvo V40 was launched in Geneva earlier this year.
"We are proud to be able to offer a car with an airbag for pedestrians. The purpose of the airbag is to help protect pedestrians in certain situations when they impact the bonnet and the area around the windscreen wiper recess and A-pillar, where there may be a risk of serious head injuries," says Thomas Broberg, Senior Technical Advisor Safety, Volvo Car Corporation.
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 signals change. The control unit evaluates the signals and if it registers what it interprets as a human leg the pedestrian airbag is deployed.
Raises the bonnet by ten centimetres
The bonnet hinges are each equipped with pyrotechnical release mechanisms which, when the system is activated, pull out a pin and release the rear of the bonnet panel. At the same time, the airbag is activated and starts filling with gas. 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, creating a dampening effect when it is hit by a pedestrian.
"The airbag has two functions. Firstly, it raises the bonnet to create distance, and secondly it cushions the impact around the hard parts of the area near the windscreen," explains Thomas Broberg.
In its inflated position, the airbag covers the entire windscreen wiper recess, about one-third of the windscreen and the lower part of the A-pillars. The entire sequence from activation of the system to full inflation takes a few hundredths of a second.
Tests with human-like dummy legs
The system is active at speeds between 20 and 50 km/h. 75 percent of all accidents involving pedestrians take place at up to 40 km/h.
"We developed the technology using computer simulations and human-like leg and head forms. The tests were carried out in a wide variety of configurations," relates Thomas Broberg.
The airbag itself consists of a sack and a gas hybrid generator. Upon activation, the sack is filled with gas within a few milliseconds.
Two years ago, 2010, Volvo Car Corporation launched 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.
Volvo Canada named title sponsor of The Bromont CCI
Three day equestrian competition final preparatory event for Olympic Eventing Team hopefuls
TORONTO, ON (May 22, 2012) - The Bromont CCI*** Three Day Event, The Todd Sandler Challenge, will welcome Volvo as its title sponsor for the international equestrian event taking place June 7 to 10, 2012, in Bromont, Quebec.
The 26th edition of the Volvo Bromont CCI*** Three Day Event, The Todd Sandler Challenge, will be used as a final preparatory event for both U.S. and Canadian Olympic Eventing Team hopefuls, attracting the biggest names in the sport from around the world.
An established leader in Scandinavian design, luxury and safety, Volvo has a long association with the Bromont Three Day Event. Volvo has stepped to the forefront with its title sponsorship for this year's event, which will play a vital role in determining who will represent their nation at the 2012 London Olympic Games in July.
"We are pleased to strengthen the existing relationship we have with The Bromont CCI for 2012," said Brad Painter, national marketing manager, Volvo Cars of Canada, "We look forward to an exciting event and wish all the competitors the best of luck in the competition."
Considered one of the most prestigious three day events in North America and offering the highest level of eventing competition in Canada, athletes will compete for prize money and awards offered by the generous sponsors of the Volvo CCI*** Bromont Three Day Event. In addition to Volvo, Beaulieu Canada, one of the largest distributors and manufacturers of wall-to-wall carpet in Canada, will also be a presenting sponsor at this year's event.
Appropriately, the Volvo Bromont CCI*** Three Day Event is held at the picturesque Bromont Olympic Horse Park, site of equestrian events for the 1976 Montreal Olympic Games. Often described as the triathlon of equestrian sport, eventing features three separate phases of competition. The opening phase, dressage, will be held in Bromont Olympic Park's multi-million upgraded stadium on Thursday and Friday, June 7 and 8. The thrilling and spectator-friendly cross-country phase takes place Saturday, June 9, as horses and riders gallop around the course designed by Derek Di Grazia, negotiating natural obstacles at great speed. The Bromont CCI*** Three Day Event concludes on Sunday with the show jumping phase, which will ultimately determine the overall winners.
Organizers are expecting over 150 horses to compete in the CCI***, CIC***, CCI**, CCI*, and CCIYJ* divisions. For more information on the Volvo Bromont CCI*** Three Day Event, please visit www.bromontcci.com.
Volvo Car Corporation partners with Mitsubishi Electric in the development of leading infotainment technology
Volvo Car Corporation has chosen electronic equipment supplier Mitsubishi Electric Corporation as partner for the next-generation infotainment system for future Volvo cars.
"We are very happy to have Mitsubishi Electric Corporation as a partner. Their world-leading knowledge and experience will bring the infotainment system in our cars up to an entirely new level," says Stefan Jacoby, President and CEO of Volvo Car Corporation.
Mitsubishi Electric Corporation will supply the central module and be the main supplier for the overall infotainment system. This is an important step in Volvo Car Corporation's aim to spearhead the development of world-class connectivity features in cars.
All intuitive technology that is available at the driver's fingertip is included in Volvo Car Corporation's recently established Sensus brand.
Sensus is the interface that promotes instinctive communication with the car, connecting it to the driver's digital world - and the central Infotainment module is a core component in this web of interactivity.
Charging hardware with intelligent content
Volvo Car Corporation's next challenge is to continue charging the infotainment system with intelligent content that offers the car owner easy, intuitive access to support, information and entertainment.
"We design our cars around people's needs and lifestyle. The extended co-operation with Mitsubishi Electric Corporation, who have been a supplier to Volvo Car Corporation for many years, paves the way for integrating new, user-friendly Infotainment and connectivity features in our cars," says Stefan Jacoby, adding: "With Mitsubishi Electric Corporation as a strategic partner we also reinforce our stand-alone position in the automotive world."