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

  • Trust AI – it knows more than we do
    January 14, 2020
    There’s no shortage of data – but making the most of it is the problem. Andrew Bunn examines how AI will be able to support and influence the development of advanced transportation strategies
  • EU rules extend the ‘long arm of the law’
    November 27, 2013
    New EU legislation allows authorities to collect fines from errant foreign motorists even after they have returned to their own country. New European Union legislation means drivers in many Member States can be prosecuted for breaking traffic laws when driving outside their home country. While not all the Member States will not be signing up to Directive 2011/82/EU facilitating the cross-border exchange of information on road safety related traffic offences, for those that do the deadline date to impleme
  • Stocchi takes on transatlantic tolling tasks
    March 20, 2017
    We talk to Emanuela Stocchi, the first overseas-based female president of IBTTA and well placed to view tolling on both sides of the Atlantic. As incoming president of the International Bridge, Tunnel and Turnpike Association (IBTTA), Emanuela Stocchi aims to bolster the ‘international, mobility and connections’ elements of the US-based tolling organisation.
  • Developments in toll interoperability
    July 16, 2012
    The North Carolina Turnpike Authority's JJ Eden talks about developments within the Alliance for Toll Interoperability. The Alliance for Toll Interoperability grew out of the US State of North Carolina's moves to introduce modern, Open Road Tolling (ORT) and the identification of revenue 'holes' when it came to out-of-state customers. Initially, the Alliance looked to achieve some form of common ground when it came to the use of transponders used by different agencies but alighted on video-based tolling as