For our ordinary consumers, the most important thing to buy a car is its practicality, although the functions on the car are more and more rich, for friends who do not particularly understand the car, it is a fancy look. The needs of each person are different, and the requirements for configuration are not the same. The configuration that may be very practical in some people’s eyes will become chicken ribs. Today we are going to talk about such a configuration – start/stop battery and start/stop system!
Advantages of automatic start and stop , automatic start and stop can indeed save fuel. This is beyond doubt, idle fuel consumption is lower than no fuel injection, and hot car state to start an engine consumption of gasoline is equivalent to idling for about 4 seconds, theoretically as long as the stop more than 4 seconds start and stop function can save fuel.
Automatic start and stop does not hurt the engine in fact, to say the truth, the loss brought by the engine stalling for a few seconds and then restarting is absolutely greater than the continuous idle, but the engine this thing from the inhalation of the first oil open loss on the moment, we say “not hurt” is the manufacturer has fully tested the reasonable loss, will not affect the overall life of the engine. As a consumer, I trust the technician of the manufacturer more. It sounds very good, and various manufacturers also promote that their vehicles equipped with start and stop systems do not need to pay too much attention when using them and do not need to spend more money to maintain them, but in fact, this is not the case — if you do not know how to use and maintain the start and stop system, it is easy to “pick up the sesame and lose the watermelon”, and even damage the engine, starter and battery. Disadvantages of car start and stop technology
When there is a traffic jam, the engine keeps starting and stalling, starting and stalling, will make the car people feel uncomfortable!
When you are on the ramp, if the start-stop function is activated, when you release the brake, the car will lack power, resulting in a slip back, prone to accidents!
When the air conditioner in the car is turned on, the engine is flared off, the air conditioner will not produce heat or refrigeration, resulting in the effect of the air conditioner is not good!
Long time traffic jam, stop and go, the engine temperature slowly drop, the engine constantly start and stop, will also lead to the increase of carbon accumulation in the cylinder!
Automatic start and stop at the same time of fuel saving, will make the driving comfort will be reduced, the starting speed will be half a beat slower than the normal state, the starting moment will have some jitter.
Start stop working principle
The start-stop system mainly includes enhanced starter with AGM battery, SISS in-cylinder direct injection ignition starting engine, BSG generator starting unit and ISG integrated motor/generator.
The most widely used start stop system -AGM battery + enhanced motor. To be precise, this start-stop system is called IDle-stop Idle stop system, and the main booster starter and AGM battery (booster battery) will start the engine.
Because this way is not much different from the ordinary way of starting the vehicle, the battery and starter need to bear greater pressure, and need more sensors and controllers to detect and control. In this way, the most important is to strengthen the starter and battery.
Most of these start and stop systems use a separated combination starter, that is, each start the starter gear needs to be combined with the flywheel to increase the working pressure of the starter, so that the engine speed must wait for the start of the engine to drop to zero (the starter of some start and stop systems uses a common combination type, the engine speed does not need to fall to zero, and the engine can be started at any speed).
Therefore, the starter needs to strengthen its durability, using permanent magnet types, strengthening the fork, increasing the number and size of brushes, strengthening the gear and other measures to make the starter can experience high-intensity work. Therefore, vehicles equipped with such a start-stop system have a starter that is more durable than a traditional starter, with a service life of up to 300,000 times.
In addition, the battery also needs to be specially strengthened, so that it can be quickly charged and discharged, but also need to have a high capacity to cope with the engine shutdown in the car with electrical work. Ordinary lead-acid batteries cannot discharge multiple large currents during the break time, and their partitions cannot let the electric ions pass through quickly. So cars with stop-start functions need larger batteries.
Vehicles using the start-stop system mainly use AGM ultrafine glass fiber separator lead-acid batteries. The AGM lead-acid battery has high acid resistance and stronger adsorption electrolyte, thus achieving smaller internal resistance and extending the life of lead-acid accumulator; The most important thing is that its deep discharge performance is good, allowing frequent high current discharge for a short time.
At present, AGM lead-acid battery to solve the two main start and stop problems of start-stop system, large current and frequent output, but the battery has a high self-discharge rate, discharge rate of 3-5% per month, storage period of more than 6 months to supplement the charge. Therefore, vehicles equipped with start-stop systems need to be used and maintained carefully.
SHENGLONG Start-Stop AGM Automotive Batteries
Start-Stop Batteries with AGM technology, is specifically designed to meet the huge energy demands of vehicles equipped with advanced Start-Stop technologies, such as regenerative braking. It is also called as Silver Dynamic AGM battery, which is capable of powering the most demanding vehicles and accessories with three times the endurance of conventional batteries. This is a battery that delivers optimal performance, faster conductivity and reliable starting power, even when the charge is low.
AGM batteries are a newer technology lead-acid battery which loses almost no water and is powerful enough to start the engine and keep things running when the car is switched off. They require no maintenance, which is why they can be positioned in the boot or under the seat. The electricity produced when braking is stored in the AGM battery.
