Skip to main content

Volvo Trucks aids safety on slippery winter roads

A truck safety solution developed by Volvo Trucks is said to minimise the risks posed to trucks with trailers by slippery winter roads and downhill gradients. Stretch Brake automatically retards the trailer and straightens up the rig on slippery downhill stretches. Stretch Brake is a complement to the rig’s electronic stability program (ESP), another system introduced by Volvo Trucks. While ESP is at its most effective at higher speeds, Stretch Brake is only operational at speeds below 40 km/h. Both syst
December 20, 2013 Read time: 2 mins
A truck safety solution developed by 5874 Volvo Trucks is said to minimise the risks posed to trucks with trailers by slippery winter roads and downhill gradients.

Stretch Brake automatically retards the trailer and straightens up the rig on slippery downhill stretches. Stretch Brake is a complement to the rig’s electronic stability program (ESP), another system introduced by Volvo Trucks. While ESP is at its most effective at higher speeds, Stretch Brake is only operational at speeds below 40 km/h. Both systems contribute to better stability and easier steering.

According to Mats Sabelstrom, brake specialist for Volvo Trucks, Stretch Brake is a kind of low-speed ESP. As the rig approaches a downhill slope, the driver manually activates the system. When he then releases the accelerator, the brakes on the trailer are automatically applied in a pulsated mode all the way down the hill until the gradient levels out and speed can once again be increased.

“Even if the truck driver ultimately manages to control the situation, it can be extremely unpleasant both for oncoming road users and the truck driver, if a rig suddenly veers off its intended course on a downhill gradient,” says Sabelström.

“About 15 percent of the total of 30,000 serious road accidents in Europe every year involve trucks, in a slightly declining trend. With effective brakes, stability systems and collision warning systems we are already helping drivers avoid risky situations in difficult conditions. Stretch Brake is yet another important part of our long-term drive to increase traffic safety and minimise the number of accidents involving trucks,” says Carl Johan Almqvist, Traffic and Product Safety director at Volvo Trucks.

Stretch Brake was introduced in 2012 on Volvo FH trucks pulling drawbar trailers and in 2013 on Volvo FM trucks pulling drawbar trailers. In 2014 it will also become available for Volvo FH and FM semi-trailer rigs.

For more information on companies in this article

Related Content

  • Measuring the effectiveness of winter VMS
    August 5, 2013
    A survey into the effectiveness of weather-related variable message signs on a trans-mountain highway has some interesting results, as Alexis Bacelar told ITS Europe. A study in the Massif Central region of France evaluating the usefulness of winter weather warning signs has highlighted the effect of variable message signs on driver behaviour. During the winter of 2009-2010, road operator Massif Central Direction Interdépartementale des Routes (MC DIR) started installing bad weather-specific variable messag
  • Software is at heart of safe vehicle connectivity, says Qt Group
    September 15, 2023
    Connected vehicle safety isn’t just under threat from malicious actors exploiting code – it’s also about avoiding software faults that could result in harm to people, says Patrick Shelly of Qt Group
  • The path to safer roads: America can learn from Europe’s example, says Verra Mobility
    May 1, 2024
    Many US states are establishing road safety programmes that will inspire others. TJ Tiedje, vice president commercial at Verra Mobility, explains why this is important
  • UK ‘headed for gridlock’ as new record car use revealed
    May 20, 2016
    UK Road safety charity Brake is concerned by worrying new figures showing car traffic reached a new peak in 2015, with overall traffic increasing by almost 19 per cent since 1995. According to UK government statistics, the number of vehicle miles travelled grew by 1.1 per cent in 2015, to 247.7 billion, slightly higher than the previous peak in 2007. Van traffic has continued to grow more quickly than any other vehicle type, rising 4.2 per cent from 2014 levels. Lorry traffic saw the largest year-on-year