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

  • IAM RoadSmart welcomes US study on benefits of humans and new vehicles working together
    August 17, 2017
    UK independent road safety charity IAM RoadSmart has welcomed a new white paper which it says supports its statement that we will not gain the full safety benefits of self-driving cars until every car on the road is connected to each other. Until then, IAM RoadSmart believes that the human mind holds the edge, until such point that connected cars actually ‘talk’ to each other and predict what is happening over the horizon. According to the white paper, Sensor Fusion: A Comparison of Sensing Capabilities of
  • New services and equipment helps cities tackle air quality issues
    September 19, 2017
    With poor urban air quality shortening lives and fines being imposed for breaching pollution limits, authorities are seeking ways to clean up their cities. Poor air quality is topping the agenda for city authorities across the globe. In the UK, for example, a report from the Royal Colleges of Physicians and of Paediatrics and Child Health, concluded that poor outdoor air quality shortens the lives of around 40,000 people a year – principally by undermining the health of people with heart and/or lung prob
  • European ecoDriver project reports results
    March 17, 2016
    After over four years of work, the European ecoDriver project has released its first results. The project trials involved 170 drivers in seven countries, France, Germany, Italy, Netherlands, Spain, Sweden and UK, both in controlled and naturalistic environments testing nine different eco-driving support systems. Despite minor variations in terms of percentage, the findings showed that overall, across all the systems, reductions in fuel consumption and CO2 have an average of 4.2 per cent with the highest
  • Aurora starts driverless delivery in Texas
    May 2, 2025
    Firm says it is first to operate commercial, self-drive heavy truck service in US