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

  • Flir takeover of Traficon and the role of thermal imaging
    February 28, 2013
    Andy Teich, president of commercial systems at Flir, discusses the growing role of thermal technology in ITS and his company’s latest high-profile acquisition with Jason Barnes. Andy Teich, Flir’s president of commercial systems, doesn’t want to talk about infrared (IR). Instead, he’d prefer, he says, to discuss ‘thermal technology’. It is, he explains, to differentiate between the imaging technologies which his company specialises in and the LED illumination of IR cameras, an altogether different beast. Fl
    Read More
  • Do buses need subsidies in congestion charging areas
    June 20, 2016
    David Crawford takes a look at the debate surrounding bus subsidies. Subsidies for public transport are a well-known and frequently-used policy tool directed at reducing the high environmental and social costs of peak-period traffic congestion. But at the end of last year the Swedish Centre for Transport Studies published a working paper entitled ‘Should buses still be subsidised in Stockholm?’ This concluded that the subsidy levels currently being applied in Stockholm could be nearly halved by setting bus
    Read More
  • Tech advances create MaaS without compromise
    August 29, 2019
    Advances in technology make it possible for authorities to compile and maintain MaaS platforms cheaply - and without relinquishing control to third parties. Colin Sowman finds out more… It is increasingly clear that local authorities’ reluctance to implement Mobility as a Service (MaaS) is based on politics and finance. However, the technology underpinning MaaS is evolving rapidly and is presenting new solutions. At its heart, the political resistance comes down to the divide between the ethos of public
    Read More
  • Continental calls for change in legal requirements for automated driving
    July 8, 2014
    International automotive supplier Continental has called for a market-based adaptation of the legal framework for automated driving, saying its Mobility Study 2013 has shown that motorists worldwide want automated driving on the freeway. “Their needs match up perfectly with the development possibilities in the upcoming years. However, the necessary adjustments to the traffic regulatory framework must not fail to take into account the connection with these market dynamics," said Continental head of resear
    Read More

Highlighted Content