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

  • Section speed enforcements gains global converts
    October 26, 2017
    As the benefits of section speed enforcement are becoming clearer, the technology is gaining converts worldwide. Colin Sowman reports. America’s National Transportation Safety Board (NTSB) is calling for urgent action from both road authorities and the federal government to combat speeding which has been identified as one of the most common factors in motor vehicle crashes in the United States. This new call follows the publication of a safety study which found that between 2005 through 2014, 31% of all
  • Volvo tests electric road
    July 1, 2013
    Researchers at the Volvo Group are looking into a future where trucks and buses are continuously supplied with electric power without carrying large batteries. Instead, power lines are built into the surface of the road. This could be a future solution for long-distance trucks and buses running on electricity. “In city traffic, there are currently various solutions and we are researching many others. We have field tests in progress where our plug-in buses are equipped with a battery that can be charged quic
  • Ukraine turns to ITS to cope with traffic increases
    June 9, 2015
    With increasing road fatalities the Ukrainian government is planning to introduce ITS technology in 2016-2017. Eugene Gerden finds out more. The government of Ukraine is considering a massive introduction of ITS in the national system of traffic during the period 2016-2017, according to a recent statement by the Ukrainian Ministry of Transport. According to the Ukrainian government, implementation of the project is an acute need, as in recent years the number of road accidents in Ukraine has significantly
  • Intersection collision avoidance system trial
    January 31, 2012
    Although much of the emphasis of research into intersection management has tended to concentrate on the needs of urban locations, there remain specific issues pertaining to rural intersections which need to be addressed. Here, Rebecca Szymkowski and Greg Helgeson, Wisconsin DOT, Todd Szymkowski, University of Wisconsin-Madison, and Craig Shankwitz and Arvind Menon, University of Minnesota detail progress on an intersection collision avoidance system for more remote locations.