There is hardly a model of new generation that does not have its standard equipment the Start & Stop system, a technology that you know the positive effect on fuel consumption and emissions produced in the city traffic, but which probably few know the real operation. Yet, being now a system destined to become standard, so that by some estimates as much as 50% of all new models sold in 2012 will be the standard, it is useful to understand at least the basic operation, also illustrated in a funny video made by Bosch.The basic principle is simple but important: avoid an unnecessary consumption of fuel when the vehicle is stopped in traffic with the engine running, such as can occur before a traffic light. The system also limits the release of air emissions and contribute to increased maintenance costs of the vehicle, which is evident especially those who travel a lot in town and is frequently among the queues and traffic jams are typical of modern towns.
The Start & Stop system goes into action when you put the transmission in neutral (for those who drive model with manual transmission) and is released the clutch pedal, while the transmission is automatic, just press the brake pedal and insert the neutral position of change (denoted by the letter N).
All actions that are typically performed just when you stop in traffic. At that juncture, the engine is turned off automatically, and then be restarted, again automatically, possible when the driver puts the gear and press on the accelerator. To ensure adequate system reliability and parts which are inevitably stressed, models equipped with this technology benefit from a starter motor and battery power, with the aim of being able to easily withstand the many starts and stops the motor that could be often necessary for those driving in traffic.
Are absolutely unfounded rumors that the decommissioning of some services such as air conditioning, wipers, audio or exterior lights simultaneously turned off the engine, in fact going to penalize the expanded functionality of the vehicle whenever the system is operational , which is absolutely false.
Ultimately, this useful device does is shut down and restart the engine to the satisfaction of certain conditions, a set of actions that theoretically could also be done manually by a driver in a very prudent and careful consumption, although in that case , all would surely be more complicated.
A look at the numbers tells us, finally, that on average you'll save 8% of fuel consumption and emissions in city driving, which, in terms of a renewed environmental awareness, not cheap.
- Opel to show new Corsa ecoFLEX with standard start/stop, Agila at Bologna show (02/12/2010)
- Opel adds start-stop tech to Astra ecoFlex; fuel economy jumps to 50 mpg (15/01/2011)
- Denso: Time Is Ripe to Deploy Start-Stop (14/01/2011)
- Start Debunking | Stop Waiting (17/12/2010)
- Ford expanding start-stop technology to non-hybrid models (27/12/2010)
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