Video | Agriculture | Confidence | Economy | Energy | Employment | Finance | Media | Property | RBNZ | Science | SOEs | Tax | Technology | Telecoms | Tourism | Transport | Search

 


Volvo: City safety avoids low speed crashes

media bulletin – Volvo


City safety avoids low speed crashes!


8 December 2006


Volvo Cars has unveiled a unique system that can help the car driver avoid the sort of low-speed collisions that are so common in urban traffic and in slow-moving traffic queues.

If the driver is about to drive into the vehicle in front and does not react in time, the car brakes itself. The system is called City Safety and Volvo Cars' ambition with it, is to help avoid half of all rear-end collisions.

Volvo Cars plans to introduce City Safety on the market within the coming two years. “The system offers benefits to all involved. For the occupants of the car in front, the risk of whiplash injuries is avoided or reduced. What is more, the system can help reduce or sometimes even eliminate the cost of repairs to both vehicles,” says Ingrid Skogsmo, director of the Volvo Cars Safety Centre.

If the vehicle in front suddenly brakes and the City Safety senses that a collision is likely to happen it will pre charge the brakes to help the driver to avoid an accident by braking or let the driver steer away from a potential collision. However, when the system senses that a collision is imminent, the car will brake automatically through hydraulic pump activation.

Statistics reveal that 75 percent of all reported collisions occur at speeds of up to 30 km/h. In addition, the consequences of small impacts are often so limited that not all are reported to the insurance companies. However, even the smallest collisions cost time and money to repair.

City Safety is active at up to 30 km/h. If the relative speed difference between the two vehicles is below 15 km/h, the system can help the driver avoid the collision entirely. Between 15 and 30 km/h, the focus is instead on reducing speed as much as possible before the impact.

Optical radar monitors traffic in front of the car

The system keeps a watchful eye on traffic in front of the car with the help of an optical radar system integrated into the upper part of the windscreen at the height of the interior rear-view mirror. It can monitor vehicles that are up to 6 metres in front of the car. City Safety operates at speeds of up to 30 km/h and the system is programmed to respond if the vehicle in front is either at a standstill or is moving in the same direction as the car itself.

Based on the distance to the object in front and the car’s own speed, the system runs a calculation 50 times per second to determine what braking speed is needed to avoid a collision. If the calculated braking force exceeds a given level without the driver responding, the danger of a collision is considered imminent. In such a case, City Safety helps avoid or reduce the consequences of a collision by automatically activating the car’s brakes or by auto braking and switching off the throttle.

Certain limitations

City Safety has the same limitations as all conventional radar systems, that is to say the sensor’s capability can be limited by fog, mist, snow or heavy rain. It is therefore essential to keep the windscreen free from dirt, ice and snow. If the sensor is blocked, the driver is alerted via the car’s information display to clean the windscreen. The system works equally well by day or night.

“It is important to emphasise that the system does not absolve the driver from driving with adequate safety margins in order to avoid collisions. The automatic braking function is only activated when the system assesses that a collision is imminent. The system then steps in to limit the consequences of – or in some cases totally avoid – the imminent collision,” explains Ingrid Skogsmo.

Preventive system in focus

Volvo Cars has previously presented active safety systems that help the driver avoid and reduce damage and injuries from collisions. Collision Warning and Brake Support alerts the driver via audible and visual signals if the gap to the car in front is being reduced so quickly that an impact is likely. At the same time, the braking system is prepared so that braking is as effective as possible in this emergency situation. The system has been introduced in the new Volvo S80.


ENDS

© Scoop Media

 
 
 
 
 
Business Headlines | Sci-Tech Headlines

 

Onetai Station: Overseas Investment Office Puts Ceol & Muir On Notice

The Overseas Investment Office (OIO) has issued a formal warning to Ceol & Muir and its owners, Argentinian brothers Rafael and Federico Grozovsky, for failing to provide complete and accurate information when they applied to buy Onetai Station in 2013. More>>

ALSO:

Tomorrow, The UN: Feds President Takes Reins At World Farming Body

Federated Farmers president Dr William Rolleston has been appointed acting president of the World Farmers’ Organisation (WFO) at a meeting in Geneva overnight. More>>

ALSO:

I Sing The Highway Electric: Charge Net NZ To Connect New Zealand

BMW is turning Middle Earth electric after today announcing a substantial contribution to the charging network Charge Net NZ. This landmark partnership will enable Kiwis to drive their electric vehicles (EVs) right across New Zealand through the installation of a fast charging highway stretching from Kaitaia to Invercargill. More>>

ALSO:

Watch This Space: Mahia Rocket Lab Launch Site Officially Opened

Economic Development Minster Steven Joyce today opened New Zealand’s first orbital launch site, Rocket Lab Launch Complex 1, on the Mahia Peninsula on the North Island’s east coast. More>>

Earlier:

Marketing Rocks!
Ig Nobel Award Winners Assess The Personality Of Rocks

A Massey University marketing lecturer has received the 2016 Ig Nobel Prize for economics for a research project that asked university students to describe the “brand personalities” of three rocks. More>>

ALSO:

Nurofen Promotion: Reckitt Benckiser To Plead Guilty To Misleading Ads

Reckitt Benckiser (New Zealand) intends to plead guilty to charges of misleading consumers over the way it promoted a range of Nurofen products, the Commerce Commission says. More>>

ALSO:

Get More From Scoop

 
 
 
 
 
 
 
 
 
Business
Search Scoop  
 
 
Powered by Vodafone
NZ independent news