Recently, all parts of the country have entered the peak of the dry season. In some places, it rained for more than half a month, and the traveling companions will be soaked into chickens if they are not careful. The love car of the people with cars is the biggest test in a year. Whether to close the active start-stop system or not when wading in the water has also begun to trigger comments. So today, Xiaobian wants to talk with us about the active start-stop system when wading in the water. Do you want to be closed?

　　现在的轿车很多都装备了发动机“主动启停”功能，怒地就是让发动机在拥堵的路况中“休息一会”，当然也是为了省油，可是这项非常好的节油功能却面临着暴雨的“应战”，由于一不小心就会因而销毁自己的爱车。

　　Now many cars are equipped with the engine "active start and stop" function, angrily is to let the engine in the congested road conditions "rest for a while", of course, is also to save fuel and environmental protection, but this very good fuel-saving function is facing the "battle" of the rainstorm, as a result of carelessness will be destroyed their car.

　　涉水时，为什么“主动启停”能销毁发动机

　　Why does "active start and stop" destroy the engine when wading

　　假定你地点的城市下了大暴雨，全市开端了“看海”形式，那么你的爱车就必须要面临涉水的问题。当然涉水有一定的深度，假如不于导致进气口进水，那也无所谓。不过不要忘了一般的司机看到前方积水越来越深，心里的那种惧怕会让他收油踩刹车将车辆停住，主动启停体系此时会认为车辆需求短时间停止，当然会主动将发动机熄灭。而这时分路面积水恰恰没过进气口，驾驶员抬起刹车踏板，发动时机主动发动，水就会从发动机进气口抽入气缸。发动机发动，水杯吸入气缸，法定机瞬间也会宣告逝世！

　　Assuming that there is a heavy rain in your city and the whole city has begun to "see the sea", then your car must face the problem of wading water. Of course, there is a certain depth of wading, if it does not lead to intake water, it does not matter. Nevertheless, don't forget that the average driver sees that the water is getting deeper and deeper in front of him. The fear in his heart will make him take oil and brake to stop the vehicle. At this time, the active start-stop system will think that the vehicle needs to stop for a short time, and of course will actively extinguish the engine. At this time, the pavement water just did not pass the intake, the driver raised the brake pedal, initiative to start when the start time, water will be pumped into the cylinder from the engine intake. The engine starts, the water cup sucks in the cylinder, and the legal engine will be declared dead in an instant!

　　就算是水没有没过进气口，还有一种状况，涉水行走原本心里就有担心，可是对面也有来车，水中狭路相逢，你降低车速，可人家不减速，你本能反响一脚刹车，主动启罢工作了，结果灭车了，而此时涌起的水浪拍进了轿车的进气口。惊魂未定的你下意识的抬起刹车，主动启停又工作了，结果就悲催了。

　　Even if the water has not passed the air intake, there is still a situation, wading in the water would have been worried, but there is also a car across the water, narrow road encounter, you reduce the speed, but people do not slow down, you instinctively respond to a foot brake, actively start and stop work, the result of the car, and then the surge of water into the car's air inlet. You raise the brake unconsciously, start and stop actively and work again, and the result is sad.

　　为什么发动机进水再次发动会分分钟报废？

　　Why does it take minutes to scrap when the engine starts again?

　　现在轿车上广泛使用的都是四冲程发动机，所谓四冲程就是“吸气→紧缩→做工→排气。其间的紧缩就是经过活塞的运动，紧缩燃油与空气的混合物，活塞上止点到下止点时的缸内容积比，就是咱们常说的紧缩比，一个紧缩比是8的发动机就是空气体积会被紧缩到本来的八分之一。

　　Nowadays, four-stroke engines are widely used in cars. The so-called four-stroke engines are "inspiration contraction workmanship exhaust". Compression is through the movement of the piston, the mixture of fuel and air, the ratio of cylinder volume from top dead point to bottom dead point of the piston, which is what we often call the compaction ratio. An engine with a compaction ratio of 8 is that the volume of air will be reduced to one eighth of its original volume.

　　可是假如是水进入气缸，那就不容易被紧缩了，紧缩冲程时活塞和活塞连杆将会接受非常大的力气，这很有可能会形成活塞连杆曲折甚断裂，而断裂的活塞连杆极有可能会戳破气缸。同时，水进入到气缸还会形成机油乳化，因而机油简直会丧失掉润滑性，这对发动机而言也是无法接受的。

　　However, if water enters the cylinder, it is not easy to be tightened. During the tightening stroke, the piston and piston connecting rod will receive a great deal of force, which may cause the piston connecting rod to twist or even break, and the broken piston connecting rod will probably puncture the cylinder. At the same time, water into the cylinder will form oil emulsification, so the oil will almost lose lubricity, which is also unacceptable for the engine.

　　其实涉水时发动机主动发动，整个进程就像是咱们经常说到的水中二次焚烧，结果小编不说小伙伴也可想而知了吧。

　　Actually, when wading, the engine starts on its own initiative. The whole process is like the second incineration in water, which we often talk about. As a result, Xiaobian can imagine it without talking about his companion.

　　发动机憋灭后怎么做？主动启停还会工作吗？

　　What to do when the engine is out? Will it work if it starts or stops on its own initiative?

　　涉水行进发动机被憋灭有两种状况，一种由于排气阻力大，发动机排气不畅被憋灭；还有一种是进气体系进水后，发动机俄然没有了空气参加焚烧，导致瞬间熄火。小编在这儿想说，不管哪种状况导致发动机熄火，都严禁直接发动发动机，此时要做的事检查发动机进气体系是否进水，其实就是检查空气滤是否被水漫过。

　　There are two kinds of conditions when the wading engine is blocked. One is that the engine exhaust is blocked due to the high exhaust resistance, and the other is that the engine suddenly loses air to participate in the combustion after the intake of the gas system. Xiaobian wants to say here that no matter what kind of condition causes the engine to stall, it is strictly forbidden to start the engine directly. At this time, the first thing to do is to check whether the air inlet system of the engine is filled with water. In fact, it is to check whether the air filter is overflowed by water.

　　假如空气滤没有水漫过，且空气滤到节气门的管道中也没有水迹，就可以放心大胆的再次发动发动机了。假如空气滤全部都被水湿透了，进气管也有水迹，那么进气支管也可能已经进水了，可是发动机不一定会受损，这时分制止发动发动机，找拖车救援才是好的选择。

　　If there is no water in the air filter and there is no water in the throttle pipe, you can start the engine again boldly. If all the air filters are wet through and the intake pipe has water marks, then the intake branch pipe may have already been water, but the engine may not be damaged. Stop starting the engine at this time, and find a trailer rescue is the best choice.

　　怎么判别车辆能否涉水？

　　How to judge whether a vehicle can wade?

　　看着一片汪洋雨水，要判别爱车能否涉水其实很简单，就是以轿车轮胎为参照物，水的深度不到轮胎直径的一半，就可以测验涉水；假如水深到了轮胎直径一半就要注意了，就是说假如水淹没了半个轮胎那就别过了。假如是进入地道就要更谨慎了，一般地道墙壁会有涉水深度警示，可是假如是新手，心理素质也不过硬，那就不要测验涉水了。还有涉水的时分，车辆要匀速行进，坚持车距，特别要注意对方车辆行进过来形成的水浪。

　　Watching a vast ocean of rain, it is very simple to judge whether a car can wade in water, that is, using the car tire as a reference, the water depth is less than half of the diameter of the tire, you can test wading; if the water depth reaches half of the diameter of the tire, you should pay attention to it, that is, if the water floods half of the tire, that is to say, don't go. If you enter the tunnel, you should be more cautious. Generally, the tunnel wall will be warned of the depth of wading, but if you are a novice, your psychological quality is not too hard, then don't test wading. When wading, the vehicles should move at a uniform speed, stick to the distance, and pay special attention to the waves formed by the other side's vehicles.