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

  • Ford Research looking to help drivers manage stressful situations on the road
    June 28, 2012
    Engineers in the Ford Research and Innovation labs are developing ways to help the driver stay focused in busy situations by intelligently managing incoming communications. Data from the sensing systems of driver-assist technologies can be used to determine the amount of external demand and workload upon a driver at any given time including traffic and road conditions. In addition, Ford continues its health and wellness research with the development of a biometric seat, seat belt and steering wheel that can
  • Transportation’s electrifying future
    August 1, 2023
    Climbing out of our silos will be vital to create the frameworks and networks needed to decarbonise transport, if we are serious about mitigating climate change, says Colin Sowman
  • ITS benefits escape public
    June 8, 2015
    John Kendall considers the public’s awareness of the benefits of ITS. While the results of developing ITS technology may be clear to readers of ITS International, there is far less evidence that drivers have any appreciation of what the technology is doing for them. So how aware are drivers of the developments that are designed to make their journeys less congested and safer?
  • Finland working on autonomous trucks
    June 19, 2015
    As part of the European DESERVE project, VTT Technical Research Centre of Finland, Iveco Finland and TTS-Kehitys are developing a new software platform which will bring autonomous driving features to trucks. The truck of the future will sense nearby obstacles and possible safety risks and inform the driver. The vehicle will also monitor driving behaviour and draw the driver's attention to possible hazardous situations. TTS is implementing and testing the safety equipment development platform. A driver mo