Skip to main content

The challenges of start-stop technology

According to automotive technology supplier Dayco, the number of vehicles featuring start-stop technology will continue to rise over the next few years. The company says that it is only by incorporating such a function into a number of models in each range, that vehicle manufacturers will be able to reduce their fleet average emission levels and achieve the targets that EU legislation demands. Dayco, in alliance with Peugeot/Citroën, has developed a starter/alternator that has an auxiliary belt system w
September 9, 2013 Read time: 2 mins
According to automotive technology supplier Dayco, the number of vehicles featuring start-stop technology will continue to rise over the next few years.  The company says that it is only by incorporating such a function into a number of models in each range, that vehicle manufacturers will be able to reduce their fleet average emission levels and achieve the targets that EU legislation demands.

Dayco, in alliance with Peugeot/Citroën, has developed a starter/alternator that has an auxiliary belt system with the strength to start and restart the engine instantly when the vehicle needs to pull away, but is no wider than a standard auxiliary belt. In contrast to a conventional belt system, the patented Dayco self tensioning system (STS) maintains a balanced tension on both sides of the belt in relation to the starter/alternator drive pulley. Instead of having a tensioner on just one side of the belt system, the tensioning device connects both sides of the starter/alternator belt system.

The Dayco STS is designed to create a balance of forces between the two sides at all times, which enables the starter/alternator to seamlessly switch between its starting and charging modes to allow the vehicle’s start-stop system to function to its full potential.

The major development of this self-balancing device is the rigid connection of its pulleys, which allows it to maintain the correct belt tension irrespective of the direction of the load.

Related Content

  • The benefits of Lidar
    March 21, 2022

    While Lidar is gaining ground in the ITS industry, it has not yet reached the level of mass adoption where it shows up frequently in requests for proposals (RFPs) from cities and DoTs.

  • Global mobility study: world on the move
    November 27, 2020
    ERF reviews impact of new mobility on road infrastructure in 20 countries pre-Covid
  • Platooning with Ease on the I-70
    July 15, 2025
    What would happen to truck platooning - a nascent technology - if the weather turns nasty? The I-70 Truck Automation Corridor Project in the northern US should provide some answers, reports David Arminas…
  • New ETI report highlights technologies to cut carbon emissions in shipping
    January 24, 2017
    The Energy Technologies Institute (ETI) has published a new report in which it highlights affordable measures and technologies that could be taken to reduce the fuel consumption and carbon emissions from shipping. The International Maritime Organisation has stated that maritime emissions could rise by up to 250 per cent by 2050 compared to 2011 levels unless action is taken. According to ETI, eliminating fossil-fuels for shipping does not appear credible in the next few decades; it believes the best