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

  • HERMES Study provides guidance for forward ITS thinking in Finland
    August 25, 2016
    Having authored HERMES, a major study for the Finnish Ministry of Transport and Communication, Josef Czako talks to ITS International about his findings and lessons for other authorities. When CEOs of major automakers are predicting more change in the next five years than in the past 50, what is the role of national authorities considering the benefits of innovations in ITS?
  • London needs just one road user charge, says report
    July 8, 2019
    London’s patchwork of road charging schemes should be replaced by a single, distance-based user charge, according to new research. Apart from anything else, it would be much fairer… The UK capital’s multiple road charging schemes require a radical overhaul, according to a new report by the Centre for London thinktank. The suggested solution is to replace existing levies on drivers with a single, distance-based user charge which would more fairly reflect how much, and at what time, people are using London
  • Arup picks 8 ways ITS can save the planet
    January 6, 2022
    The solutions we need to accelerate carbon-free transport are known, available and ready to be deployed. Tim Gammons from Arup explains what the ITS industry can do now to help…
  • Creating foundations for European MaaS model
    February 26, 2021
    Public transport is backbone of Mobility as a Service in Europe, says Piia Karjalainen