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Spaceflight Power Supply Co., Ltd.
Add: Weimin High-Tech Development Area, Fusha, Zhongshan, Guangdong Province, China
Start-Stop System means that when the vehicle is in a stopped state (Non-Parking State), the engine will stop working (instead of maintaining the traditional idle speed). While stopping, the lubricating oil in the engine will continue to run in order to keep the engine lubricated. When the brake pedal is released, the engine will start again. At this time, due to the constant circulation of lubricating oil, even if the engine stops and starts frequently, there will be no wear and tear on the engine interior. Here, this article will introduce you something about Start & Stop System and Start & Stop Battery.
We will simulate the operation of the start-stop system when a car passes through a traffic intersection. By describing this, you should quickly understand how the start-stop system works.
The driver sits in the cockpit. The red light at the junction ahead is on. The driver presses the brake pedal and stops to pick up gear. At this time, the Start & Stop system automatically detects that the engine is idling and is not in gear. The wheel speed sensor of anti-lock system shows zero. The electronic battery sensor shows that there is enough power for the next boot. When these three conditions are met, the engine stops rotating automatically.
When the light turns green, the driver presses down on the clutch to start the “start stop” and start the engine quickly. The driver puts in gear, presses the gas pedal, and the car starts quickly. With the support of efficient battery technology and the corresponding engine management program, the start-stop system can operate normally at low temperatures and can be activated after only a short preheating process.
It can reduce unnecessary fuel consumption and emissions, also improve fuel economy. When waiting for signals in urban traffic or stuck in traffic, the idling time of the engine can be reduced as much as possible. The power supply can replace the pulley set engine cooling fan and in-car air conditioner to provide running power after the engine is turned off.
It needs more durable starter and battery. The general starter design allows for a large operating current, but the service time is short. Repeated use of starter is easy to cause starter overheat damage, so the automatic start-stop function of starter must be more durable than the ordinary starter. At the same time, due to the increase of battery charge and discharge times, the battery life is also affected.
There are EFB and AGM types of start & stop battery, which are suitable for different types of start & stop systems car. But do you know what differences between them? Here, let’s talk about some differences between EFB and AGM batteries that are as follows:
It uses the enhanced liquid-rich battery technology, and EFB battery is based on the traditional battery technology. EFB battery improves the deep cycle performance of the battery through adjusting the active material formula. In addition, the enhanced internal pole group assembly strength enables the battery to have a stronger seismic performance while improving its life. Prevent the active material of the battery from falling off, prolong the deep cycle life of the battery by more than 2 times, and improve the charging acceptance ability of the battery.
EFB rich liquid battery is suitable for installation near engine compartment (rich liquid battery with filling hole), high temperature resistant and maintainable. More Japanese cars are equipped with EFB batteries.
AGM is the adsorptive glass fiber separator technology. AGM battery uses the barren solution type design, plate is not soak in the electrolyte, in addition to plate inside some of the electrolyte absorption, most of the electrolyte adsorption on porous glass fiber clapboard, and tight assembly technology is adopted to keep the partition a percentage of the space is not occupied by a liquid electrolyte, thereby increasing deep cycle battery life can achieve common battery (three times) and service life.
AGM lean-liquid battery should avoid high temperature, suitable for under the seat and trunk room temperature environment. In Europe and America, more high-end cars are equipped with AGM
1)The internal structure of the two types of storage is different. EFB and AGM are flooded and liquid-poor batteries.
2)Installation location is different. EFB flooded battery is suitable for installation near the engine compartment, while AGM liquid-poor storage is generally installed in the trunk.
3)AGM overall than EFB battery is better, more fuel saving and environmental protection, can save 5-10% of fuel, and reduce 10-20% of carbon dioxide emissions.
4)EFB is applicable to a wide range of temperatures than AGM. AGM batteries cannot be used at high temperatures.
5)Usually, German and American cars mainly promote AGM technology, while Japanese manufacturers mainly promote EFB technology.
We have talk about the start & stop system and start & stop battery in the passage. Hope it will be helpful for you guys.