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

  • Need for harmonisation in ITS standards
    February 1, 2012
    As the calendar rolls over, and we hop from continent to continent and World Congress to World Congress, where Memoranda of Understanding and cooperation agreements are the headline news, it is easy for those not intimately involved to forget that standards definition is a well-nigh continual process. Significant progress has been made in recent months towards achieving the critical mass and economies of scale which are going to drive development and deployment in, amongst other things, cooperative infrastr
  • New solutions to old problems set to cut emergency response times
    April 30, 2015
    David Crawford looks at the latest developments in emergency response. Ensuring speedier reactions to transport and travel crises is becoming increasingly important. US statistics suggest that as many as 1,000 ‘saveable’ lives can be lost each year in major cities because of operational defects in their SOS operations.
  • Electric vehicles in construction are the future, say researchers
    December 20, 2016
    The industrial and commercial sector is the largest part of the electric vehicle value market and that will continue to be the case according to analysis in the IDTechEx report, Industrial and Commercial Electric Vehicles 2017-2027. Buses are the largest part of that and they are mainly made in China for China, where typical orders are ten times the size of orders elsewhere. Less dramatically, construction, mining and agriculture do not see 70 per cent grants for EV versions yet they are steadily becomin
  • Harmonisation of Europe's ITS deployment still unbalanced
    January 31, 2012
    Dean Herenda, Chairman of the EasyWay project, talks about the progress made and the progress still to be made in harmonising ITS deployment across the European Union. "The deployment and use of ITS in road transport across Europe was and still is unbalanced" Although Europe can be proud of being home to some of the world's most advanced ITS solutions, the relative disparities between Member States of the European Union (EU) in terms of the extent and technological sophistication of deployments actually sta