顿挫感是怎样的感受？相信很多车主都深有体会，当挂挡完成以后，要是直接放开离合就会熄火；当慢慢放离合，踩油门的时候，在车速和挡位不匹配的情况下容易出现拖挡，车子一卡一卡地向前走但又不熄火时的那种感觉就是顿挫感。

　　What is the feeling of jerking? I believe many car owners have experienced that after shifting gears, if they release the clutch directly, the engine will stall; When slowly releasing the clutch and stepping on the accelerator, it is easy to experience jerking when the vehicle speed and gear are not matched. The feeling of the car moving forward one by one without stalling is a jerking sensation.

　　什么情况下最容易产生顿挫？

　　Under what circumstances are jolts most likely to occur?

　　急加速或者刹车后再加速这两种情况是最容易产生顿挫的，电脑的换挡逻辑是根据驾驶者踩油门情况来进行判断分析的，正常情况下，当驾驶者慢慢加油，电脑的原本逻辑只需要升挡就可以完成加速，但是由于力度过大，离合器在升挡途中发现需要降挡才能完成这次急加速的意图，此时又立马进行减挡处理，这样一来一回的时间里面，动力不能够顺畅地传输，这样就容易产生顿挫了。一般来说，车子顿挫是因为发动机的转速与离合器片的转速不同步引起的，那具体有哪些原因呢，下面来分析分析：

　　The two situations that are most prone to jerking are sudden acceleration or accelerating after braking. The shift logic of the computer is judged and analyzed based on the driver's stepping on the accelerator. Under normal circumstances, when the driver slowly refuels, the computer's original logic only needs to upshift to complete the acceleration. However, due to excessive force, the clutch discovers that it needs to downshift during the upshift to complete the intention of this sudden acceleration. At this time, it immediately downshifts. In this way, power cannot be transmitted smoothly during the back and forth time, which can easily cause jerking. Generally speaking, car jolts are caused by the engine speed not synchronizing with the clutch plate speed. What are the specific reasons for this? Let's analyze them below:

　　一、正常的原因

　　1、 Normal reasons

　　1、升挡顿挫多数原因是因为变速箱的相应速度不够快，升挡速度跟不上你踩油门的速度，所以在变速箱换挡的一刹那，顿挫感就来了。2、降挡顿挫多数是因为能量回收系统的介入，一旦驾驶者松开油门踏板或踩下制动踏板，发电机会立即开始工作，就会搭上发动机，给发动机造成一些负担，影响发动机的转速，使发动机转速与离合器片转速不同步，这样就会有顿挫的感觉。3、低速顿挫很多车主有这种情况，由于低速行驶的时候挡位在一二挡之间频繁切换，离合器不断的分离和结合，短时间内不能畅顺地完成动力传输，就造成了常见的低速顿挫，启动与低速的时候会有顿挫感，这个正常的话一般是低转速的时候涡轮增压介入，影响了发动机转速。

　　1. Most of the reasons for upshifting jerks are because the corresponding speed of the gearbox is not fast enough, and the upshifting speed cannot keep up with the speed at which you step on the accelerator, so the jerking feeling comes at the moment when the gearbox shifts gears. 2. Downshifting jerks are mostly caused by the intervention of the energy recovery system. Once the driver releases the accelerator pedal or steps on the brake pedal, the generator will immediately start working, which will put some burden on the engine and affect its speed. This will cause the engine speed to be out of sync with the clutch plate speed, resulting in a jerky feeling. 3. Many car owners experience low-speed jerking. Due to frequent gear shifts between first and second gears while driving at low speeds, the clutch constantly disengages and engages, preventing smooth power transmission in a short period of time, resulting in common low-speed jerking. There is a jerking sensation during start-up and low-speed driving, which is usually caused by turbocharger intervention at low speeds, affecting engine speed.

　　二、不正常的原因

　　2、 Abnormal reasons

　　1、变速箱挡位程序设定问题；2、变速箱内部脏污和杂质，内部脏污或杂质导致不能对变速箱油压进行有效调节，从而造成顿挫；3、变速箱散热问题，变速箱散热不良，会导致变速箱异常高温，从而影响变速箱油的性能，如果温度超过120℃，变速箱的橡胶密封材料会变硬，造成变速箱渗漏，从而影响油压，造成顿挫。

　　1. Gearbox gear program setting issue; 2. The internal dirt and impurities of the gearbox prevent effective adjustment of the gearbox oil pressure, resulting in jerking; 3. The problem of transmission heat dissipation is that poor transmission heat dissipation can cause abnormal high temperatures in the transmission, thereby affecting the performance of the transmission oil. If the temperature exceeds 120 ℃, the rubber sealing material of the transmission will harden, causing transmission leakage and affecting oil pressure, resulting in jerking.

　　三、处理步骤

　　3、 Processing steps

　　1、先对照上面说的“正常原因”，想想这个顿挫是不是正常的，一般来说如果这顿挫感一直有，那么应该是正常的，如果某天突然感觉不一样了，那就可能有问题了；2、检查变速箱的温度是不是正常，如果不正常，检查变速箱散热系统，散热没问题，继续看下面的；3、对变速箱电脑系统进行重新编程设置；4、更换变速箱油，换变速箱油需2年或4万公里更换一次；5、检查变速箱内部阀体是否有损坏。

　　1. First, compare with the "normal reasons" mentioned above and think about whether this jerky is normal. Generally speaking, if this jerky feeling persists, it should be normal. If one day you suddenly feel different, there may be a problem; 2. Check if the temperature of the gearbox is normal. If it is not normal, check the gearbox cooling system. If there is no problem with the cooling, continue reading below; 3. Reprogram the transmission computer system; 4. Replace the transmission oil, which needs to be changed every 2 years or 40000 kilometers; 5. Check if the internal valve body of the gearbox is damaged.

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