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

  • Consumer telematics driving automotive electronics
    February 3, 2012
    This year's Consumer Electronics Show in Las Vegas was characterised by consumer telematics solutions, writes Dave McNamara
  • The case for integrating urban traffic control and parking
    February 3, 2012
    Although urban traffic control and parking management are inextricably linked in so many ways, there remain fundamental differences which undermine closer integration. Car parking guidance systems can have a significant, positive impact on congestion in town and city centres, however conflicting business models still stand in the way of the more profound integration of car parking management and Urban Traffic Control (UTC) systems.
  • America fires V2V starting gun
    April 7, 2014
    Leo McCloskey, ITS America’s senior vice president for Technical Programs, talks to Jason Barnes about what the recent NHTSA ruling on light vehicle connectivity means for cooperative infrastructures in North America. In early February the US Department of Transportation’s (USDOT’s) National Highway Traffic Safety Administration (NHTSA) announced it had decided to start taking steps to enable Vehicle-to-Vehicle (V2V) communication technology for light vehicles. In so doing, the many safety-related applicati
  • Ford targets fully autonomous vehicle in 2021
    August 17, 2016
    Ford has announced its intention to have a high-volume, fully autonomous vehicle in commercial operation in 2021. The new vehicle will be a Society of Automotive Engineers-rated level 4-capable vehicle without a steering wheel or gas and brake pedals. It is being specifically designed for commercial mobility services, such as ride sharing and ride hailing, and will be available in high volumes. SAE level 4 is one level below full automation and is defined as ‘mode-specific performance by an automated