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

  • Technology overcomes EV range challenges
    February 4, 2013
    According to new analysis from Frost and Sullivan, Strategic Analysis of Global Market for Range Extenders, major challenges currently faced by the electric vehicle (EV) revolve around the inability to provide long range in a single charge as well as the lengthy charging times that can vary from thirty minutes to ten hours. This has limited the number of adopters for EVs. Range extender technology overcomes these challenges, strategically positioned to make strong gains in the EV market. Currently, the mark
  • Global powertrain market experience immense growth, say researchers
    April 21, 2017
    The latest report from Frost & Sullivan indicates that the global powertrain market is experiencing immense growth as new low-emission technologies such as engine downsizing and rightsizing; direct injection; turbocharging; transmission electrification; and electric vehicle (EV), hybrid and gasoline engines transform the industry. Original equipment manufacturers (OEMs) are embracing platform strategy as a tool to improve the energy efficiency of powertrain systems and to achieve fleet level CO2 compliance
  • Now is the time for V2X in tolling
    July 9, 2025
    FTE, Indra, Audi & Qualcomm Technologies demonstrate C-V2X tolling in Florida
  • Geotoll’s payment app could be the smart answer to tolling interoperability
    July 30, 2013
    Jon Masters looks at a smartphone app which could be the ‘disruptive technology’ that eases the way to interoperability in tolling systems. Consumer demand may soon drive the biggest step change yet in tolling. In the United States a new start-up company, Geotoll, has launched a smartphone app for electronic toll payment. It is not beyond possibility that rapid growth of the market for smartphones will continue – an estimated 50% of US citizens and 80% of Europeans now have one – and that the Geotoll brand