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Start-stop system in cars – what do we know about it?
The start-stop system appears in almost every new car - a solution that is primarily aimed at reducing fuel consumption. What is worth knowing about this topic?
In this article you will find information about:
- what is start-stop system,
- how it works,
- what battery it can support start-stop system,
- how to prevent its failures,
- what are the advantages and disadvantages of the system,
- how to disconnect start-stop system.
See also the article: Electric cars – what is worth knowing before buying? What are the advantages and disadvantages of electric cars?
What is a start-stop system?
Start-stop system is an electronic solution designed to turn off the engine during a short stop, as well as restart the drive unit when the driver intends to move off. The main goal is to reduce the time spent idling, thus reducing fuel consumption and reducing exhaust gas production..
Interestingly, similar systems appeared in cars at the turn of the 70s and 80s, however start-stop system it became widely used only in the last decade, after the introduction of new exhaust emission standards. System operation start stop can be noticed mainly in city traffic, especially when standing in traffic jams or waiting for the traffic lights to change.
How does start-stop work?
Start-stop method is simple in its assumptions: the system monitors the condition of the drive unit, constantly monitoring whether the car is in motion or has been stopped by the driver. In practice, however, this type of systems can be quite complex, which results from the need to maintain proper operation of individual systems in the car even when the engine is temporarily turned off. The process of the system itself start stop is largely automatic, but its activation depends on the actions performed by the driver. What's more, it is also available in cars with this system start-stop button, which allows you to temporarily disable this mechanism.
When the car is running start stop has a short stop - for example in a traffic jam or before an intersection with traffic lights - the engine stops. This usually happens after shifting to neutral and releasing the clutch. At this point, however, it is necessary to maintain the operation of other systems, such as the compressor or cooling system, which usually operate on a multi-ribbed belt that transfers energy from the drive unit.. For this reason, in cars with the system start stop an additional electric power supply is used for this type of components.
The drive unit is usually started again when the clutch is pressed again. In some systems, the engine may also be turned on when there is a need for energy, for example when the air conditioning is turned on.
What is important, start-stop system it works slightly differently in cars with automatic transmission. In this case, it is closely connected to the brake - the engine turns off when the vehicle stops, and when you release the pedal, the drive unit starts working again.
Start-stop system has been used for a relatively long time - however, it is also worth taking a look at new solutions that have appeared in vehicles that have been introduced to the market in recent years. One of them is Separated Sound Zone technology, i.e. a modern audio zone system.
Can any battery be suitable for a start-stop system?
Not every battery will be able to handle it effectively start-stop system. Choosing an inappropriate model may result in premature failures as well as various problems with the operation of the car. You will need a special one battery for start-stop – we are talking about EFB and AGM units. The first of them are characterized by the presence of an additional polyester coating, which allows to increase the stability of the liquid mass and increase resistance to frequent charging and discharging. AGM batteries, in turn, are equipped with special glass fiber that eliminates electrolyte loss.
Start-stop battery it must be made using one of these technologies. This is primarily due to the fact that AGM and EFB batteries can handle three times more cycles than traditional starter batteries.
When talking about batteries and starting, it is also worth remembering about additional accessories that will be invaluable help in the event of sudden breakdowns. They will be the basis jumper cables – on our blog you can find the most important tips on both selection and operation.
How to prevent breakdowns in cars with start-stop systems?
Start-stop system it is quite a complicated system that is susceptible to various types of failures. This involves, among others, with greater demands on the battery as well as more frequent engine starts. When the start-stop system operates in a crowded city, the drive unit can be turned on and off even several dozen times an hour. This exposes parts such as the alternator, battery, starter and turbocharger to problems. This may result in the need to replace individual parts, which increases operating costs - so it is worth ensuring effective failure prevention. The basis will be proper battery maintenance, as well as ensuring the right type of battery for the car.
When choosing a car, you should take into account all important parameters and operating costs. We recently wrote about car show in Paris – we encourage you to check out the most interesting models.
Advantages and disadvantages of having a start-stop system
Start-stop system evokes mixed feelings among drivers - its greatest advantage is its positive impact on ecological issues, but there are many people who consider this type of systems to be an unnecessary complication and a source of increased risk of failure of other parts. The advantages include reduced noise and reduced CO emissions2 and reducing fuel consumption. The key disadvantages are, in turn, greater wear of components, which translates into more frequent operational repairs, which can effectively consume savings. Before purchasing a vehicle with the system start stop it is worth taking a closer look at your driving style and how you use the car to be sure that this solution will work.
When do we need to think about disconnecting the start-stop system?
If you have problems with this system, you can turn it off by pressing start-stop button. It is worth doing this, for example, when we want to avoid repeated engine stops in a traffic jam. However, it should be noted that the deactivation is temporary - the system will be active again the next time the vehicle is started.
Appropriate use of the system smart-stop it's an important part of keeping your vehicle in good condition. We also invite you to read the article about it cleaning the car, where you can find valuable advice on maintaining the right appearance and quality varnish.
