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自动变速箱维修常见的三大故障

发布日期: 2020-09-27 来源: http://www.jnbsx.com/ 点击:

一:行驶中引擎转速高

1: High engine speed during driving
这个问题包括平稳行驶中一直转速高,提速过程中转速高两种情况。 平稳过程中转速高比较容易测试,比方一部引擎排量2.0L的车辆平时在2600转车速即可达到100公里,但一段时间内经常需要3000转或更高才能达到100公里,则说明已出现此故障。
This problem includes two situations: high speed in smooth driving and high speed in acceleration. For example, a vehicle with 2.0 l engine displacement can reach 100 km at 2600 rpm, but it often needs 3000 rpm or higher to reach 100km in a period of time, which indicates that this fault has occurred.
一般这种故障是由于变速箱高速档失效或者变扭器内部锁止离合器失效引起的,需要立即检修变速箱。
Generally, this kind of fault is caused by the failure of high speed transmission or locking clutch inside the torque converter, so it is necessary to overhaul the gearbox immediately.
提速过程中转速过高,这个故障测试有点复杂,因为在提速过程中,引擎转速的上升同加速踏板有着密切的关联,比如一部正常的帕萨特在小油门的情况引擎一般提速到2500转即可使车辆加速起来,但在全油门的情况下引擎需提升到5500-6000转,如此巨大的反差是由于受变速箱电子控制系统的模糊逻辑来控制,所以这个标准需要一定的自动变速箱维修水准方可完成。
The engine speed is too high during the acceleration process. This fault test is a bit complicated, because during the acceleration process, the rise of engine speed is closely related to the accelerator pedal. For example, when the engine of a normal Passat is small, the engine can accelerate to 2500 rpm, but the engine needs to be increased to 5500-6000 rpm at full throttle. This huge contrast is due to It is controlled by the fuzzy logic of the transmission electronic control system, so this standard needs a certain professional automatic transmission maintenance level to complete.
二:车辆跑不起
2: The car can't run
车辆跑不起,这是驾驶人员的驾驶感受,车辆跑不起包括没有高速,即无论如何行驶,车辆都不能达到100公里/小时。提速很慢,即油门踩的很重但车辆还是慢慢提速,反应很差、缺乏酣畅的感觉,这种情况又包括引擎提速很慢,即发动机的转速上不来和转速上的很快但车速不快两种情况。所以这是个相对复杂的问题,正常的测试标准是车辆起步、适当踩加速踏板,引擎转速平稳提升,车辆加速,一般在2500转左右,车速在25-30公里之间,自动变速箱进入换档,引擎的转速在适当回落后逐步回升,同时车速明显加快,在车辆40公里时二次换档,变速箱在进入三档后,车速会进一步加快,在60公里的速段上会进入变速箱的高档位,整个过程引擎在升档的过程会适当回落后再次提起,无空转、无打滑现象。

It is the driver's feeling that the vehicle can't run, including the lack of high speed, that is, the vehicle can't reach 100 km / h in any case. The acceleration is very slow, i.e. the accelerator is heavily stepped on, but the vehicle still accelerates slowly. The reaction is very poor and the feeling of soundness is lacking. This situation also includes two situations: the engine speed is slow, that is, the engine speed is not up and the speed is fast but the speed is not fast. Therefore, this is a relatively complex problem. The normal test standard is to start the vehicle, properly step on the accelerator pedal, the engine speed will increase steadily, and the vehicle will accelerate, generally around 2500 rpm, and the vehicle speed will be between 25-30 km. The automatic transmission will enter the first shift, and the engine speed will gradually rise after appropriate fall. Meanwhile, the speed will obviously accelerate. When the vehicle is 40 km, the engine will change its speed When the gearbox is in the third gear, the speed will be further accelerated, and it will enter the high gear of the gearbox at the speed of 60 km. During the whole process, the engine will be lifted again after appropriately falling back during the upshift process, without idling and slipping.
一般引擎排量在2.0左右的车辆平稳行驶的情况下,引擎2500-3000转时车速可以达到100公里的时速,如需要进一步提升车速,引擎转速需要同步增加,如果引擎加油很闷、不顺畅,一般说明引擎需要自动变速箱维修检修,如果引擎加速有力则说明可能是变速箱内部档位不对、离合器烧毁、变扭器出现机械故障等。
Generally, when a vehicle with an engine displacement of about 2.0 runs smoothly, the speed of the engine can reach 100 km / h at 2500-3000 rpm. If the speed needs to be further increased, the engine speed needs to be increased synchronously. If the engine refueling is very stuffy and not smooth, it generally indicates that the engine needs automatic transmission maintenance. If the engine accelerates strongly, it may be the internal gear of the gearbox Wrong position, burned clutch, mechanical failure of torque converter, etc.
三:入档迟 入档死火 入档冲击
3: Late gear in, dead fire in gear impact
测试入档标准是启动引擎、怠速、踩住刹车、入档,正常的情况是1-1.2秒的时间内有入档的感觉,放开刹车踏板,在不踩油门踏板的情况下车辆会慢慢起步并逐步提取到0-20公里/小时的车速,这是一部车正常的入档标准,如果入档后超过2秒钟以上即定位入档延迟 ,这种情况需要立即检修;如果入档有强烈的冲击感觉即定位入档冲击,需要说明的是任何自动变速箱入档都有一定程度的冲击感觉,如果丝毫的感觉都没有,反而说明内部有故障,但这个冲击比较大则是不能够接受的,引发该故障的原因很复杂,包括除变速箱以外的很多方面。入档死火的情况是入档时引擎会死火,这种问题在冷车时比较明显,引发该故障有变速箱的原因也有其它车身系统的原因。
The standard of gear selection is to start the engine, idle, step on the brake and shift into gear. The normal situation is to feel the gear in within 1-1.2 seconds. Release the brake pedal, and the vehicle will start slowly without stepping on the accelerator pedal and gradually extract the speed of 0-20 km / h. This is a normal gear in standard for a car. If the gear is put into gear for more than 2 seconds, the gear in delay will be located This situation needs to be repaired immediately. If there is a strong impact feeling when shifting into gear, i.e. positioning impact, it needs to be explained that any automatic transmission has a certain degree of impact feeling when shifting. If there is no feeling at all, it indicates that there is an internal fault, but the impact is relatively large, which is unacceptable. The causes of the fault are very complex, including that except for the gearbox Many other aspects. The case of stalling in gear is that the engine will stall when it is in gear. This problem is more obvious when the car is cold. The fault is caused by the gearbox and other body systems.

关键词: 济南自动变速箱容易折断的原因有哪些? 自动变速箱打滑故障原因有哪些? 自动变速箱电磁阀运用的方法 济南自动变速箱维修:变速器制造没有那么简单 合理利用车速延长制动使用寿命

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